1440 lines
66 KiB
Python
1440 lines
66 KiB
Python
# Django management-related functions, including "CREATE TABLE" generation and
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# development-server initialization.
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import django
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from django.core.exceptions import ImproperlyConfigured
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import os, re, shutil, sys, textwrap
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from optparse import OptionParser
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from django.utils import termcolors
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# For Python 2.3
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if not hasattr(__builtins__, 'set'):
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from sets import Set as set
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MODULE_TEMPLATE = ''' {%% if perms.%(app)s.%(addperm)s or perms.%(app)s.%(changeperm)s %%}
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<tr>
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<th>{%% if perms.%(app)s.%(changeperm)s %%}<a href="%(app)s/%(mod)s/">{%% endif %%}%(name)s{%% if perms.%(app)s.%(changeperm)s %%}</a>{%% endif %%}</th>
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<td class="x50">{%% if perms.%(app)s.%(addperm)s %%}<a href="%(app)s/%(mod)s/add/" class="addlink">{%% endif %%}Add{%% if perms.%(app)s.%(addperm)s %%}</a>{%% endif %%}</td>
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<td class="x75">{%% if perms.%(app)s.%(changeperm)s %%}<a href="%(app)s/%(mod)s/" class="changelink">{%% endif %%}Change{%% if perms.%(app)s.%(changeperm)s %%}</a>{%% endif %%}</td>
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</tr>
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{%% endif %%}'''
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APP_ARGS = '[appname ...]'
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# Use django.__path__[0] because we don't know which directory django into
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# which has been installed.
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PROJECT_TEMPLATE_DIR = os.path.join(django.__path__[0], 'conf', '%s_template')
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INVALID_PROJECT_NAMES = ('django', 'test')
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# Set up the terminal color scheme.
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class dummy: pass
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style = dummy()
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style.ERROR = termcolors.make_style(fg='red', opts=('bold',))
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style.ERROR_OUTPUT = termcolors.make_style(fg='red', opts=('bold',))
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style.SQL_FIELD = termcolors.make_style(fg='green', opts=('bold',))
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style.SQL_COLTYPE = termcolors.make_style(fg='green')
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style.SQL_KEYWORD = termcolors.make_style(fg='yellow')
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style.SQL_TABLE = termcolors.make_style(opts=('bold',))
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del dummy
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def disable_termcolors():
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class dummy:
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def __getattr__(self, attr):
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return lambda x: x
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global style
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style = dummy()
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# Disable terminal coloring on Windows, Pocket PC, or if somebody's piping the output.
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if sys.platform == 'win32' or sys.platform == 'Pocket PC' or not sys.stdout.isatty():
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disable_termcolors()
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def _is_valid_dir_name(s):
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return bool(re.search(r'^\w+$', s))
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def _get_installed_models(table_list):
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"Gets a set of all models that are installed, given a list of existing tables"
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from django.db import models
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all_models = []
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for app in models.get_apps():
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for model in models.get_models(app):
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all_models.append(model)
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return set([m for m in all_models if m._meta.db_table in table_list])
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def _get_table_list():
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"Gets a list of all db tables that are physically installed."
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from django.db import connection, get_introspection_module
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cursor = connection.cursor()
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return get_introspection_module().get_table_list(cursor)
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# If the foreign key points to an AutoField, a PositiveIntegerField or a
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# PositiveSmallIntegerField, the foreign key should be an IntegerField, not the
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# referred field type. Otherwise, the foreign key should be the same type of
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# field as the field to which it points.
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get_rel_data_type = lambda f: (f.get_internal_type() in ('AutoField', 'PositiveIntegerField', 'PositiveSmallIntegerField')) and 'IntegerField' or f.get_internal_type()
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def get_version():
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"Returns the version as a human-format string."
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from django import VERSION
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v = '.'.join([str(i) for i in VERSION[:-1]])
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if VERSION[-1]:
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v += '-' + VERSION[-1]
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return v
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def get_sql_create(app):
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"Returns a list of the CREATE TABLE SQL statements for the given app."
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from django.db import get_creation_module, models
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data_types = get_creation_module().DATA_TYPES
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if not data_types:
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# This must be the "dummy" database backend, which means the user
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# hasn't set DATABASE_ENGINE.
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sys.stderr.write(style.ERROR("Error: Django doesn't know which syntax to use for your SQL statements,\n" +
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"because you haven't specified the DATABASE_ENGINE setting.\n" +
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"Edit your settings file and change DATABASE_ENGINE to something like 'postgresql' or 'mysql'.\n"))
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sys.exit(1)
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# Get installed models, so we generate REFERENCES right.
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# We trim models from the current app so that the sqlreset command does not
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# generate invalid SQL (leaving models out of known_models is harmless, so
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# we can be conservative).
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app_models = models.get_models(app)
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final_output = []
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known_models = set([model for model in _get_installed_models(_get_table_list()) if model not in app_models])
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pending_references = {}
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for model in app_models:
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output, references = _get_sql_model_create(model, known_models)
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final_output.extend(output)
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for refto, refs in references.items():
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pending_references.setdefault(refto,[]).extend(refs)
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final_output.extend(_get_sql_for_pending_references(model, pending_references))
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# Keep track of the fact that we've created the table for this model.
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known_models.add(model)
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# Create the many-to-many join tables.
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for model in app_models:
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final_output.extend(_get_many_to_many_sql_for_model(model))
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# Handle references to tables that are from other apps
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# but don't exist physically
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not_installed_models = set(pending_references.keys())
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if not_installed_models:
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alter_sql = []
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for model in not_installed_models:
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alter_sql.extend(['-- ' + sql for sql in
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_get_sql_for_pending_references(model, pending_references)])
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if alter_sql:
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final_output.append('-- The following references should be added but depend on non-existent tables:')
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final_output.extend(alter_sql)
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return final_output
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get_sql_create.help_doc = "Prints the CREATE TABLE SQL statements for the given app name(s)."
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get_sql_create.args = APP_ARGS
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def _get_sql_model_create(model, known_models=set()):
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"""
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Get the SQL required to create a single model.
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Returns list_of_sql, pending_references_dict
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"""
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from django.db import backend, get_creation_module, models
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data_types = get_creation_module().DATA_TYPES
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opts = model._meta
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final_output = []
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table_output = []
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pending_references = {}
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for f in opts.fields:
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if isinstance(f, (models.ForeignKey, models.OneToOneField)):
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rel_field = f.rel.get_related_field()
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data_type = get_rel_data_type(rel_field)
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else:
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rel_field = f
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data_type = f.get_internal_type()
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col_type = data_types[data_type]
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if col_type is not None:
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# Make the definition (e.g. 'foo VARCHAR(30)') for this field.
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field_output = [style.SQL_FIELD(backend.quote_name(f.column)),
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style.SQL_COLTYPE(col_type % rel_field.__dict__)]
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field_output.append(style.SQL_KEYWORD('%sNULL' % (not f.null and 'NOT ' or '')))
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if f.unique:
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field_output.append(style.SQL_KEYWORD('UNIQUE'))
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if f.primary_key:
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field_output.append(style.SQL_KEYWORD('PRIMARY KEY'))
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if f.rel:
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if f.rel.to in known_models:
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field_output.append(style.SQL_KEYWORD('REFERENCES') + ' ' + \
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style.SQL_TABLE(backend.quote_name(f.rel.to._meta.db_table)) + ' (' + \
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style.SQL_FIELD(backend.quote_name(f.rel.to._meta.get_field(f.rel.field_name).column)) + ')'
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)
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else:
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# We haven't yet created the table to which this field
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# is related, so save it for later.
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pr = pending_references.setdefault(f.rel.to, []).append((model, f))
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table_output.append(' '.join(field_output))
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if opts.order_with_respect_to:
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table_output.append(style.SQL_FIELD(backend.quote_name('_order')) + ' ' + \
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style.SQL_COLTYPE(data_types['IntegerField']) + ' ' + \
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style.SQL_KEYWORD('NULL'))
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for field_constraints in opts.unique_together:
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table_output.append(style.SQL_KEYWORD('UNIQUE') + ' (%s)' % \
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", ".join([backend.quote_name(style.SQL_FIELD(opts.get_field(f).column)) for f in field_constraints]))
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full_statement = [style.SQL_KEYWORD('CREATE TABLE') + ' ' + style.SQL_TABLE(backend.quote_name(opts.db_table)) + ' (']
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for i, line in enumerate(table_output): # Combine and add commas.
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full_statement.append(' %s%s' % (line, i < len(table_output)-1 and ',' or ''))
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full_statement.append(');')
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final_output.append('\n'.join(full_statement))
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return final_output, pending_references
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def _get_sql_for_pending_references(model, pending_references):
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"""
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Get any ALTER TABLE statements to add constraints after the fact.
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"""
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from django.db import backend, get_creation_module
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data_types = get_creation_module().DATA_TYPES
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final_output = []
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if backend.supports_constraints:
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opts = model._meta
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if model in pending_references:
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for rel_class, f in pending_references[model]:
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rel_opts = rel_class._meta
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r_table = rel_opts.db_table
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r_col = f.column
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table = opts.db_table
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col = opts.get_field(f.rel.field_name).column
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# For MySQL, r_name must be unique in the first 64 characters.
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# So we are careful with character usage here.
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r_name = '%s_refs_%s_%x' % (r_col, col, abs(hash((r_table, table))))
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final_output.append(style.SQL_KEYWORD('ALTER TABLE') + ' %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s);' % \
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(backend.quote_name(r_table), r_name,
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backend.quote_name(r_col), backend.quote_name(table), backend.quote_name(col)))
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del pending_references[model]
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return final_output
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def _get_many_to_many_sql_for_model(model):
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from django.db import backend, get_creation_module
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from django.db.models import GenericRel
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data_types = get_creation_module().DATA_TYPES
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opts = model._meta
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final_output = []
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for f in opts.many_to_many:
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if not isinstance(f.rel, GenericRel):
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table_output = [style.SQL_KEYWORD('CREATE TABLE') + ' ' + \
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style.SQL_TABLE(backend.quote_name(f.m2m_db_table())) + ' (']
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table_output.append(' %s %s %s,' % \
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(style.SQL_FIELD(backend.quote_name('id')),
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style.SQL_COLTYPE(data_types['AutoField']),
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style.SQL_KEYWORD('NOT NULL PRIMARY KEY')))
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table_output.append(' %s %s %s %s (%s),' % \
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(style.SQL_FIELD(backend.quote_name(f.m2m_column_name())),
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style.SQL_COLTYPE(data_types[get_rel_data_type(opts.pk)] % opts.pk.__dict__),
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style.SQL_KEYWORD('NOT NULL REFERENCES'),
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style.SQL_TABLE(backend.quote_name(opts.db_table)),
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style.SQL_FIELD(backend.quote_name(opts.pk.column))))
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table_output.append(' %s %s %s %s (%s),' % \
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(style.SQL_FIELD(backend.quote_name(f.m2m_reverse_name())),
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style.SQL_COLTYPE(data_types[get_rel_data_type(f.rel.to._meta.pk)] % f.rel.to._meta.pk.__dict__),
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style.SQL_KEYWORD('NOT NULL REFERENCES'),
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style.SQL_TABLE(backend.quote_name(f.rel.to._meta.db_table)),
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style.SQL_FIELD(backend.quote_name(f.rel.to._meta.pk.column))))
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table_output.append(' %s (%s, %s)' % \
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(style.SQL_KEYWORD('UNIQUE'),
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style.SQL_FIELD(backend.quote_name(f.m2m_column_name())),
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style.SQL_FIELD(backend.quote_name(f.m2m_reverse_name()))))
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table_output.append(');')
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final_output.append('\n'.join(table_output))
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return final_output
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def get_sql_delete(app):
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"Returns a list of the DROP TABLE SQL statements for the given app."
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from django.db import backend, connection, models, get_introspection_module
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introspection = get_introspection_module()
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# This should work even if a connecton isn't available
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try:
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cursor = connection.cursor()
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except:
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cursor = None
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# Figure out which tables already exist
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if cursor:
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table_names = introspection.get_table_list(cursor)
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else:
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table_names = []
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output = []
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# Output DROP TABLE statements for standard application tables.
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to_delete = set()
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references_to_delete = {}
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app_models = models.get_models(app)
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for model in app_models:
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if cursor and model._meta.db_table in table_names:
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# The table exists, so it needs to be dropped
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opts = model._meta
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for f in opts.fields:
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if f.rel and f.rel.to not in to_delete:
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references_to_delete.setdefault(f.rel.to, []).append( (model, f) )
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to_delete.add(model)
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for model in app_models:
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if cursor and model._meta.db_table in table_names:
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# Drop the table now
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output.append('%s %s;' % (style.SQL_KEYWORD('DROP TABLE'),
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style.SQL_TABLE(backend.quote_name(model._meta.db_table))))
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if backend.supports_constraints and references_to_delete.has_key(model):
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for rel_class, f in references_to_delete[model]:
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table = rel_class._meta.db_table
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col = f.column
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r_table = model._meta.db_table
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r_col = model._meta.get_field(f.rel.field_name).column
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output.append('%s %s %s %s;' % \
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(style.SQL_KEYWORD('ALTER TABLE'),
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style.SQL_TABLE(backend.quote_name(table)),
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style.SQL_KEYWORD(backend.get_drop_foreignkey_sql()),
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style.SQL_FIELD(backend.quote_name('%s_refs_%s_%x' % (col, r_col, abs(hash((table, r_table))))))))
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del references_to_delete[model]
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# Output DROP TABLE statements for many-to-many tables.
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for model in app_models:
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opts = model._meta
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for f in opts.many_to_many:
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if cursor and f.m2m_db_table() in table_names:
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output.append("%s %s;" % (style.SQL_KEYWORD('DROP TABLE'),
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style.SQL_TABLE(backend.quote_name(f.m2m_db_table()))))
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app_label = app_models[0]._meta.app_label
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# Close database connection explicitly, in case this output is being piped
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# directly into a database client, to avoid locking issues.
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if cursor:
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cursor.close()
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connection.close()
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return output[::-1] # Reverse it, to deal with table dependencies.
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get_sql_delete.help_doc = "Prints the DROP TABLE SQL statements for the given app name(s)."
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get_sql_delete.args = APP_ARGS
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def get_sql_reset(app):
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"Returns a list of the DROP TABLE SQL, then the CREATE TABLE SQL, for the given module."
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return get_sql_delete(app) + get_sql_all(app)
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get_sql_reset.help_doc = "Prints the DROP TABLE SQL, then the CREATE TABLE SQL, for the given app name(s)."
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get_sql_reset.args = APP_ARGS
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def get_sql_initial_data_for_model(model):
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from django.db import models
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from django.conf import settings
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opts = model._meta
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app_dir = os.path.normpath(os.path.join(os.path.dirname(models.get_app(model._meta.app_label).__file__), 'sql'))
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output = []
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# Some backends can't execute more than one SQL statement at a time,
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# so split into separate statements.
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statements = re.compile(r";[ \t]*$", re.M)
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# Find custom SQL, if it's available.
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sql_files = [os.path.join(app_dir, "%s.%s.sql" % (opts.object_name.lower(), settings.DATABASE_ENGINE)),
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os.path.join(app_dir, "%s.sql" % opts.object_name.lower())]
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for sql_file in sql_files:
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if os.path.exists(sql_file):
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fp = open(sql_file, 'U')
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for statement in statements.split(fp.read()):
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if statement.strip():
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output.append(statement + ";")
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fp.close()
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return output
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def get_sql_initial_data(app):
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"Returns a list of the initial INSERT SQL statements for the given app."
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from django.db.models import get_models
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output = []
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app_models = get_models(app)
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app_dir = os.path.normpath(os.path.join(os.path.dirname(app.__file__), 'sql'))
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for model in app_models:
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output.extend(get_sql_initial_data_for_model(model))
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return output
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get_sql_initial_data.help_doc = "Prints the initial INSERT SQL statements for the given app name(s)."
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get_sql_initial_data.args = APP_ARGS
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def get_sql_sequence_reset(app):
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"Returns a list of the SQL statements to reset PostgreSQL sequences for the given app."
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from django.db import backend, models
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output = []
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for model in models.get_models(app):
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for f in model._meta.fields:
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if isinstance(f, models.AutoField):
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output.append("%s setval('%s', (%s max(%s) %s %s));" % \
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(style.SQL_KEYWORD('SELECT'),
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style.SQL_FIELD('%s_%s_seq' % (model._meta.db_table, f.column)),
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style.SQL_KEYWORD('SELECT'),
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style.SQL_FIELD(backend.quote_name(f.column)),
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style.SQL_KEYWORD('FROM'),
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style.SQL_TABLE(backend.quote_name(model._meta.db_table))))
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break # Only one AutoField is allowed per model, so don't bother continuing.
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for f in model._meta.many_to_many:
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output.append("%s setval('%s', (%s max(%s) %s %s));" % \
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(style.SQL_KEYWORD('SELECT'),
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style.SQL_FIELD('%s_id_seq' % f.m2m_db_table()),
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style.SQL_KEYWORD('SELECT'),
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style.SQL_FIELD(backend.quote_name('id')),
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style.SQL_KEYWORD('FROM'),
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style.SQL_TABLE(f.m2m_db_table())))
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return output
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get_sql_sequence_reset.help_doc = "Prints the SQL statements for resetting PostgreSQL sequences for the given app name(s)."
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get_sql_sequence_reset.args = APP_ARGS
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def get_sql_indexes(app):
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"Returns a list of the CREATE INDEX SQL statements for all models in the given app."
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from django.db import models
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output = []
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for model in models.get_models(app):
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output.extend(get_sql_indexes_for_model(model))
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return output
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get_sql_indexes.help_doc = "Prints the CREATE INDEX SQL statements for the given model module name(s)."
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get_sql_indexes.args = APP_ARGS
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def get_sql_indexes_for_model(model):
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"Returns the CREATE INDEX SQL statements for a single model"
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from django.db import backend
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output = []
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|
|
for f in model._meta.fields:
|
|
if f.db_index:
|
|
unique = f.unique and 'UNIQUE ' or ''
|
|
output.append(
|
|
style.SQL_KEYWORD('CREATE %sINDEX' % unique) + ' ' + \
|
|
style.SQL_TABLE('%s_%s' % (model._meta.db_table, f.column)) + ' ' + \
|
|
style.SQL_KEYWORD('ON') + ' ' + \
|
|
style.SQL_TABLE(backend.quote_name(model._meta.db_table)) + ' ' + \
|
|
"(%s);" % style.SQL_FIELD(backend.quote_name(f.column))
|
|
)
|
|
return output
|
|
|
|
def get_sql_all(app):
|
|
"Returns a list of CREATE TABLE SQL, initial-data inserts, and CREATE INDEX SQL for the given module."
|
|
return get_sql_create(app) + get_sql_initial_data(app) + get_sql_indexes(app)
|
|
get_sql_all.help_doc = "Prints the CREATE TABLE, initial-data and CREATE INDEX SQL statements for the given model module name(s)."
|
|
get_sql_all.args = APP_ARGS
|
|
|
|
def syncdb(verbosity=1, interactive=True):
|
|
"Creates the database tables for all apps in INSTALLED_APPS whose tables haven't already been created."
|
|
from django.db import connection, transaction, models, get_creation_module
|
|
from django.db.models import signals
|
|
from django.conf import settings
|
|
from django.dispatch import dispatcher
|
|
|
|
disable_termcolors()
|
|
|
|
# First, try validating the models.
|
|
_check_for_validation_errors()
|
|
|
|
# Import the 'management' module within each installed app, to register
|
|
# dispatcher events.
|
|
for app_name in settings.INSTALLED_APPS:
|
|
try:
|
|
__import__(app_name + '.management', '', '', [''])
|
|
except ImportError:
|
|
pass
|
|
|
|
data_types = get_creation_module().DATA_TYPES
|
|
|
|
cursor = connection.cursor()
|
|
|
|
# Get a list of all existing database tables,
|
|
# so we know what needs to be added.
|
|
table_list = _get_table_list()
|
|
|
|
# Get a list of already installed *models* so that references work right.
|
|
seen_models = _get_installed_models(table_list)
|
|
created_models = set()
|
|
pending_references = {}
|
|
|
|
for app in models.get_apps():
|
|
app_name = app.__name__.split('.')[-2]
|
|
model_list = models.get_models(app)
|
|
for model in model_list:
|
|
# Create the model's database table, if it doesn't already exist.
|
|
if verbosity >= 2:
|
|
print "Processing %s.%s model" % (app_name, model._meta.object_name)
|
|
if model._meta.db_table in table_list:
|
|
continue
|
|
sql, references = _get_sql_model_create(model, seen_models)
|
|
seen_models.add(model)
|
|
created_models.add(model)
|
|
for refto, refs in references.items():
|
|
pending_references.setdefault(refto, []).extend(refs)
|
|
sql.extend(_get_sql_for_pending_references(model, pending_references))
|
|
if verbosity >= 1:
|
|
print "Creating table %s" % model._meta.db_table
|
|
for statement in sql:
|
|
cursor.execute(statement)
|
|
table_list.append(model._meta.db_table)
|
|
|
|
for model in model_list:
|
|
if model in created_models:
|
|
sql = _get_many_to_many_sql_for_model(model)
|
|
if sql:
|
|
if verbosity >= 2:
|
|
print "Creating many-to-many tables for %s.%s model" % (app_name, model._meta.object_name)
|
|
for statement in sql:
|
|
cursor.execute(statement)
|
|
|
|
transaction.commit_unless_managed()
|
|
|
|
# Send the post_syncdb signal, so individual apps can do whatever they need
|
|
# to do at this point.
|
|
for app in models.get_apps():
|
|
app_name = app.__name__.split('.')[-2]
|
|
if verbosity >= 2:
|
|
print "Running post-sync handlers for application", app_name
|
|
dispatcher.send(signal=signals.post_syncdb, sender=app,
|
|
app=app, created_models=created_models,
|
|
verbosity=verbosity, interactive=interactive)
|
|
|
|
# Install initial data for the app (but only if this is a model we've
|
|
# just created)
|
|
for model in models.get_models(app):
|
|
if model in created_models:
|
|
initial_sql = get_sql_initial_data_for_model(model)
|
|
if initial_sql:
|
|
if verbosity >= 1:
|
|
print "Installing initial data for %s.%s model" % (app_name, model._meta.object_name)
|
|
try:
|
|
for sql in initial_sql:
|
|
cursor.execute(sql)
|
|
except Exception, e:
|
|
sys.stderr.write("Failed to install initial SQL data for %s.%s model: %s" % \
|
|
(app_name, model._meta.object_name, e))
|
|
transaction.rollback_unless_managed()
|
|
else:
|
|
transaction.commit_unless_managed()
|
|
|
|
# Install SQL indicies for all newly created models
|
|
for app in models.get_apps():
|
|
app_name = app.__name__.split('.')[-2]
|
|
for model in models.get_models(app):
|
|
if model in created_models:
|
|
index_sql = get_sql_indexes_for_model(model)
|
|
if index_sql:
|
|
if verbosity >= 1:
|
|
print "Installing index for %s.%s model" % (app_name, model._meta.object_name)
|
|
try:
|
|
for sql in index_sql:
|
|
cursor.execute(sql)
|
|
except Exception, e:
|
|
sys.stderr.write("Failed to install index for %s.%s model: %s" % \
|
|
(app_name, model._meta.object_name, e))
|
|
transaction.rollback_unless_managed()
|
|
else:
|
|
transaction.commit_unless_managed()
|
|
|
|
syncdb.args = ''
|
|
|
|
def get_admin_index(app):
|
|
"Returns admin-index template snippet (in list form) for the given app."
|
|
from django.utils.text import capfirst
|
|
from django.db.models import get_models
|
|
output = []
|
|
app_models = get_models(app)
|
|
app_label = app_models[0]._meta.app_label
|
|
output.append('{%% if perms.%s %%}' % app_label)
|
|
output.append('<div class="module"><h2>%s</h2><table>' % app_label.title())
|
|
for model in app_models:
|
|
if model._meta.admin:
|
|
output.append(MODULE_TEMPLATE % {
|
|
'app': app_label,
|
|
'mod': model._meta.module_name,
|
|
'name': capfirst(model._meta.verbose_name_plural),
|
|
'addperm': model._meta.get_add_permission(),
|
|
'changeperm': model._meta.get_change_permission(),
|
|
})
|
|
output.append('</table></div>')
|
|
output.append('{% endif %}')
|
|
return output
|
|
get_admin_index.help_doc = "Prints the admin-index template snippet for the given app name(s)."
|
|
get_admin_index.args = APP_ARGS
|
|
|
|
def _module_to_dict(module, omittable=lambda k: k.startswith('_')):
|
|
"Converts a module namespace to a Python dictionary. Used by get_settings_diff."
|
|
return dict([(k, repr(v)) for k, v in module.__dict__.items() if not omittable(k)])
|
|
|
|
def diffsettings():
|
|
"""
|
|
Displays differences between the current settings.py and Django's
|
|
default settings. Settings that don't appear in the defaults are
|
|
followed by "###".
|
|
"""
|
|
# Inspired by Postfix's "postconf -n".
|
|
from django.conf import settings, global_settings
|
|
|
|
user_settings = _module_to_dict(settings._target)
|
|
default_settings = _module_to_dict(global_settings)
|
|
|
|
output = []
|
|
keys = user_settings.keys()
|
|
keys.sort()
|
|
for key in keys:
|
|
if key not in default_settings:
|
|
output.append("%s = %s ###" % (key, user_settings[key]))
|
|
elif user_settings[key] != default_settings[key]:
|
|
output.append("%s = %s" % (key, user_settings[key]))
|
|
print '\n'.join(output)
|
|
diffsettings.args = ""
|
|
|
|
def install(app):
|
|
"Executes the equivalent of 'get_sql_all' in the current database."
|
|
from django.db import connection, transaction
|
|
|
|
app_name = app.__name__.split('.')[-2]
|
|
|
|
disable_termcolors()
|
|
|
|
# First, try validating the models.
|
|
_check_for_validation_errors(app)
|
|
|
|
sql_list = get_sql_all(app)
|
|
|
|
try:
|
|
cursor = connection.cursor()
|
|
for sql in sql_list:
|
|
cursor.execute(sql)
|
|
except Exception, e:
|
|
sys.stderr.write(style.ERROR("""Error: %s couldn't be installed. Possible reasons:
|
|
* The database isn't running or isn't configured correctly.
|
|
* At least one of the database tables already exists.
|
|
* The SQL was invalid.
|
|
Hint: Look at the output of 'django-admin.py sqlall %s'. That's the SQL this command wasn't able to run.
|
|
The full error: """ % (app_name, app_name)) + style.ERROR_OUTPUT(str(e)) + '\n')
|
|
transaction.rollback_unless_managed()
|
|
sys.exit(1)
|
|
transaction.commit_unless_managed()
|
|
install.help_doc = "Executes ``sqlall`` for the given app(s) in the current database."
|
|
install.args = APP_ARGS
|
|
|
|
def reset(app, interactive=True):
|
|
"Executes the equivalent of 'get_sql_reset' in the current database."
|
|
from django.db import connection, transaction
|
|
app_name = app.__name__.split('.')[-2]
|
|
|
|
disable_termcolors()
|
|
|
|
# First, try validating the models.
|
|
_check_for_validation_errors(app)
|
|
sql_list = get_sql_reset(app)
|
|
|
|
if interactive:
|
|
confirm = raw_input("""
|
|
You have requested a database reset.
|
|
This will IRREVERSIBLY DESTROY any data in your database.
|
|
Are you sure you want to do this?
|
|
|
|
Type 'yes' to continue, or 'no' to cancel: """)
|
|
else:
|
|
confirm = 'yes'
|
|
|
|
if confirm == 'yes':
|
|
try:
|
|
cursor = connection.cursor()
|
|
for sql in sql_list:
|
|
cursor.execute(sql)
|
|
except Exception, e:
|
|
sys.stderr.write(style.ERROR("""Error: %s couldn't be reset. Possible reasons:
|
|
* The database isn't running or isn't configured correctly.
|
|
* At least one of the database tables doesn't exist.
|
|
* The SQL was invalid.
|
|
Hint: Look at the output of 'django-admin.py sqlreset %s'. That's the SQL this command wasn't able to run.
|
|
The full error: """ % (app_name, app_name)) + style.ERROR_OUTPUT(str(e)) + '\n')
|
|
transaction.rollback_unless_managed()
|
|
sys.exit(1)
|
|
transaction.commit_unless_managed()
|
|
else:
|
|
print "Reset cancelled."
|
|
reset.help_doc = "Executes ``sqlreset`` for the given app(s) in the current database."
|
|
reset.args = APP_ARGS
|
|
|
|
def _start_helper(app_or_project, name, directory, other_name=''):
|
|
other = {'project': 'app', 'app': 'project'}[app_or_project]
|
|
if not _is_valid_dir_name(name):
|
|
sys.stderr.write(style.ERROR("Error: %r is not a valid %s name. Please use only numbers, letters and underscores.\n" % (name, app_or_project)))
|
|
sys.exit(1)
|
|
top_dir = os.path.join(directory, name)
|
|
try:
|
|
os.mkdir(top_dir)
|
|
except OSError, e:
|
|
sys.stderr.write(style.ERROR("Error: %s\n" % e))
|
|
sys.exit(1)
|
|
template_dir = PROJECT_TEMPLATE_DIR % app_or_project
|
|
for d, subdirs, files in os.walk(template_dir):
|
|
relative_dir = d[len(template_dir)+1:].replace('%s_name' % app_or_project, name)
|
|
if relative_dir:
|
|
os.mkdir(os.path.join(top_dir, relative_dir))
|
|
for i, subdir in enumerate(subdirs):
|
|
if subdir.startswith('.'):
|
|
del subdirs[i]
|
|
for f in files:
|
|
if f.endswith('.pyc'):
|
|
continue
|
|
path_old = os.path.join(d, f)
|
|
path_new = os.path.join(top_dir, relative_dir, f.replace('%s_name' % app_or_project, name))
|
|
fp_old = open(path_old, 'r')
|
|
fp_new = open(path_new, 'w')
|
|
fp_new.write(fp_old.read().replace('{{ %s_name }}' % app_or_project, name).replace('{{ %s_name }}' % other, other_name))
|
|
fp_old.close()
|
|
fp_new.close()
|
|
shutil.copymode(path_old, path_new)
|
|
|
|
def startproject(project_name, directory):
|
|
"Creates a Django project for the given project_name in the given directory."
|
|
from random import choice
|
|
if project_name in INVALID_PROJECT_NAMES:
|
|
sys.stderr.write(style.ERROR("Error: %r isn't a valid project name. Please try another.\n" % project_name))
|
|
sys.exit(1)
|
|
_start_helper('project', project_name, directory)
|
|
# Create a random SECRET_KEY hash, and put it in the main settings.
|
|
main_settings_file = os.path.join(directory, project_name, 'settings.py')
|
|
settings_contents = open(main_settings_file, 'r').read()
|
|
fp = open(main_settings_file, 'w')
|
|
secret_key = ''.join([choice('abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*(-_=+)') for i in range(50)])
|
|
settings_contents = re.sub(r"(?<=SECRET_KEY = ')'", secret_key + "'", settings_contents)
|
|
fp.write(settings_contents)
|
|
fp.close()
|
|
startproject.help_doc = "Creates a Django project directory structure for the given project name in the current directory."
|
|
startproject.args = "[projectname]"
|
|
|
|
def startapp(app_name, directory):
|
|
"Creates a Django app for the given app_name in the given directory."
|
|
# Determine the project_name a bit naively -- by looking at the name of
|
|
# the parent directory.
|
|
project_dir = os.path.normpath(os.path.join(directory, '..'))
|
|
project_name = os.path.basename(project_dir)
|
|
if app_name == os.path.basename(directory):
|
|
sys.stderr.write(style.ERROR("Error: You cannot create an app with the same name (%r) as your project.\n" % app_name))
|
|
sys.exit(1)
|
|
_start_helper('app', app_name, directory, project_name)
|
|
startapp.help_doc = "Creates a Django app directory structure for the given app name in the current directory."
|
|
startapp.args = "[appname]"
|
|
|
|
def inspectdb():
|
|
"Generator that introspects the tables in the given database name and returns a Django model, one line at a time."
|
|
from django.db import connection, get_introspection_module
|
|
import keyword
|
|
|
|
introspection_module = get_introspection_module()
|
|
|
|
table2model = lambda table_name: table_name.title().replace('_', '')
|
|
|
|
cursor = connection.cursor()
|
|
yield "# This is an auto-generated Django model module."
|
|
yield "# You'll have to do the following manually to clean this up:"
|
|
yield "# * Rearrange models' order"
|
|
yield "# * Make sure each model has one field with primary_key=True"
|
|
yield "# Feel free to rename the models, but don't rename db_table values or field names."
|
|
yield "#"
|
|
yield "# Also note: You'll have to insert the output of 'django-admin.py sqlinitialdata [appname]'"
|
|
yield "# into your database."
|
|
yield ''
|
|
yield 'from django.db import models'
|
|
yield ''
|
|
for table_name in introspection_module.get_table_list(cursor):
|
|
yield 'class %s(models.Model):' % table2model(table_name)
|
|
try:
|
|
relations = introspection_module.get_relations(cursor, table_name)
|
|
except NotImplementedError:
|
|
relations = {}
|
|
try:
|
|
indexes = introspection_module.get_indexes(cursor, table_name)
|
|
except NotImplementedError:
|
|
indexes = {}
|
|
for i, row in enumerate(introspection_module.get_table_description(cursor, table_name)):
|
|
att_name = row[0]
|
|
comment_notes = [] # Holds Field notes, to be displayed in a Python comment.
|
|
extra_params = {} # Holds Field parameters such as 'db_column'.
|
|
|
|
if ' ' in att_name:
|
|
extra_params['db_column'] = att_name
|
|
att_name = att_name.replace(' ', '')
|
|
comment_notes.append('Field renamed to remove spaces.')
|
|
if keyword.iskeyword(att_name):
|
|
extra_params['db_column'] = att_name
|
|
att_name += '_field'
|
|
comment_notes.append('Field renamed because it was a Python reserved word.')
|
|
|
|
if relations.has_key(i):
|
|
rel_to = relations[i][1] == table_name and "'self'" or table2model(relations[i][1])
|
|
field_type = 'ForeignKey(%s' % rel_to
|
|
if att_name.endswith('_id'):
|
|
att_name = att_name[:-3]
|
|
else:
|
|
extra_params['db_column'] = att_name
|
|
else:
|
|
try:
|
|
field_type = introspection_module.DATA_TYPES_REVERSE[row[1]]
|
|
except KeyError:
|
|
field_type = 'TextField'
|
|
comment_notes.append('This field type is a guess.')
|
|
|
|
# This is a hook for DATA_TYPES_REVERSE to return a tuple of
|
|
# (field_type, extra_params_dict).
|
|
if type(field_type) is tuple:
|
|
field_type, new_params = field_type
|
|
extra_params.update(new_params)
|
|
|
|
# Add maxlength for all CharFields.
|
|
if field_type == 'CharField' and row[3]:
|
|
extra_params['maxlength'] = row[3]
|
|
|
|
if field_type == 'FloatField':
|
|
extra_params['max_digits'] = row[4]
|
|
extra_params['decimal_places'] = row[5]
|
|
|
|
# Add primary_key and unique, if necessary.
|
|
column_name = extra_params.get('db_column', att_name)
|
|
if column_name in indexes:
|
|
if indexes[column_name]['primary_key']:
|
|
extra_params['primary_key'] = True
|
|
elif indexes[column_name]['unique']:
|
|
extra_params['unique'] = True
|
|
|
|
field_type += '('
|
|
|
|
# Don't output 'id = meta.AutoField(primary_key=True)', because
|
|
# that's assumed if it doesn't exist.
|
|
if att_name == 'id' and field_type == 'AutoField(' and extra_params == {'primary_key': True}:
|
|
continue
|
|
|
|
# Add 'null' and 'blank', if the 'null_ok' flag was present in the
|
|
# table description.
|
|
if row[6]: # If it's NULL...
|
|
extra_params['blank'] = True
|
|
if not field_type in ('TextField(', 'CharField('):
|
|
extra_params['null'] = True
|
|
|
|
field_desc = '%s = models.%s' % (att_name, field_type)
|
|
if extra_params:
|
|
if not field_desc.endswith('('):
|
|
field_desc += ', '
|
|
field_desc += ', '.join(['%s=%r' % (k, v) for k, v in extra_params.items()])
|
|
field_desc += ')'
|
|
if comment_notes:
|
|
field_desc += ' # ' + ' '.join(comment_notes)
|
|
yield ' %s' % field_desc
|
|
yield ' class Meta:'
|
|
yield ' db_table = %r' % table_name
|
|
yield ''
|
|
inspectdb.help_doc = "Introspects the database tables in the given database and outputs a Django model module."
|
|
inspectdb.args = ""
|
|
|
|
class ModelErrorCollection:
|
|
def __init__(self, outfile=sys.stdout):
|
|
self.errors = []
|
|
self.outfile = outfile
|
|
|
|
def add(self, context, error):
|
|
self.errors.append((context, error))
|
|
self.outfile.write(style.ERROR("%s: %s\n" % (context, error)))
|
|
|
|
def get_validation_errors(outfile, app=None):
|
|
"""
|
|
Validates all models that are part of the specified app. If no app name is provided,
|
|
validates all models of all installed apps. Writes errors, if any, to outfile.
|
|
Returns number of errors.
|
|
"""
|
|
from django.conf import settings
|
|
from django.db import models, connection
|
|
from django.db.models.loading import get_app_errors
|
|
from django.db.models.fields.related import RelatedObject
|
|
|
|
e = ModelErrorCollection(outfile)
|
|
|
|
for (app_name, error) in get_app_errors().items():
|
|
e.add(app_name, error)
|
|
|
|
for cls in models.get_models(app):
|
|
opts = cls._meta
|
|
|
|
# Do field-specific validation.
|
|
for f in opts.fields:
|
|
if f.name == 'id' and not f.primary_key and opts.pk.name == 'id':
|
|
e.add(opts, '"%s": You can\'t use "id" as a field name, because each model automatically gets an "id" field if none of the fields have primary_key=True. You need to either remove/rename your "id" field or add primary_key=True to a field.' % f.name)
|
|
if isinstance(f, models.CharField) and f.maxlength in (None, 0):
|
|
e.add(opts, '"%s": CharFields require a "maxlength" attribute.' % f.name)
|
|
if isinstance(f, models.FloatField):
|
|
if f.decimal_places is None:
|
|
e.add(opts, '"%s": FloatFields require a "decimal_places" attribute.' % f.name)
|
|
if f.max_digits is None:
|
|
e.add(opts, '"%s": FloatFields require a "max_digits" attribute.' % f.name)
|
|
if isinstance(f, models.FileField) and not f.upload_to:
|
|
e.add(opts, '"%s": FileFields require an "upload_to" attribute.' % f.name)
|
|
if isinstance(f, models.ImageField):
|
|
try:
|
|
from PIL import Image
|
|
except ImportError:
|
|
e.add(opts, '"%s": To use ImageFields, you need to install the Python Imaging Library. Get it at http://www.pythonware.com/products/pil/ .' % f.name)
|
|
if f.prepopulate_from is not None and type(f.prepopulate_from) not in (list, tuple):
|
|
e.add(opts, '"%s": prepopulate_from should be a list or tuple.' % f.name)
|
|
if f.choices:
|
|
if not hasattr(f.choices, '__iter__'):
|
|
e.add(opts, '"%s": "choices" should be iterable (e.g., a tuple or list).' % f.name)
|
|
else:
|
|
for c in f.choices:
|
|
if not type(c) in (tuple, list) or len(c) != 2:
|
|
e.add(opts, '"%s": "choices" should be a sequence of two-tuples.' % f.name)
|
|
if f.db_index not in (None, True, False):
|
|
e.add(opts, '"%s": "db_index" should be either None, True or False.' % f.name)
|
|
|
|
# Check that maxlength <= 255 if using older MySQL versions.
|
|
if settings.DATABASE_ENGINE == 'mysql':
|
|
db_version = connection.get_server_version()
|
|
if db_version < (5, 0, 3) and isinstance(f, (models.CharField, models.CommaSeparatedIntegerField, models.SlugField)) and f.maxlength > 255:
|
|
e.add(opts, '"%s": %s cannot have a "maxlength" greater than 255 when you are using a version of MySQL prior to 5.0.3 (you are using %s).' % (f.name, f.__class__.__name__, '.'.join([str(n) for n in db_version[:3]])))
|
|
|
|
# Check to see if the related field will clash with any
|
|
# existing fields, m2m fields, m2m related objects or related objects
|
|
if f.rel:
|
|
rel_opts = f.rel.to._meta
|
|
if f.rel.to not in models.get_models():
|
|
e.add(opts, "'%s' has relation with model %s, which has not been installed" % (f.name, rel_opts.object_name))
|
|
|
|
rel_name = RelatedObject(f.rel.to, cls, f).get_accessor_name()
|
|
rel_query_name = f.related_query_name()
|
|
for r in rel_opts.fields:
|
|
if r.name == rel_name:
|
|
e.add(opts, "Accessor for field '%s' clashes with field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.name, f.name))
|
|
if r.name == rel_query_name:
|
|
e.add(opts, "Reverse query name for field '%s' clashes with field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.name, f.name))
|
|
for r in rel_opts.many_to_many:
|
|
if r.name == rel_name:
|
|
e.add(opts, "Accessor for field '%s' clashes with m2m field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.name, f.name))
|
|
if r.name == rel_query_name:
|
|
e.add(opts, "Reverse query name for field '%s' clashes with m2m field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.name, f.name))
|
|
for r in rel_opts.get_all_related_many_to_many_objects():
|
|
if r.get_accessor_name() == rel_name:
|
|
e.add(opts, "Accessor for field '%s' clashes with related m2m field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.get_accessor_name(), f.name))
|
|
if r.get_accessor_name() == rel_query_name:
|
|
e.add(opts, "Reverse query name for field '%s' clashes with related m2m field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.get_accessor_name(), f.name))
|
|
for r in rel_opts.get_all_related_objects():
|
|
if r.field is not f:
|
|
if r.get_accessor_name() == rel_name:
|
|
e.add(opts, "Accessor for field '%s' clashes with related field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.get_accessor_name(), f.name))
|
|
if r.get_accessor_name() == rel_query_name:
|
|
e.add(opts, "Reverse query name for field '%s' clashes with related field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.get_accessor_name(), f.name))
|
|
|
|
|
|
for i, f in enumerate(opts.many_to_many):
|
|
# Check to see if the related m2m field will clash with any
|
|
# existing fields, m2m fields, m2m related objects or related objects
|
|
rel_opts = f.rel.to._meta
|
|
if f.rel.to not in models.get_models():
|
|
e.add(opts, "'%s' has m2m relation with model %s, which has not been installed" % (f.name, rel_opts.object_name))
|
|
|
|
rel_name = RelatedObject(f.rel.to, cls, f).get_accessor_name()
|
|
rel_query_name = f.related_query_name()
|
|
# If rel_name is none, there is no reverse accessor.
|
|
# (This only occurs for symmetrical m2m relations to self).
|
|
# If this is the case, there are no clashes to check for this field, as
|
|
# there are no reverse descriptors for this field.
|
|
if rel_name is not None:
|
|
for r in rel_opts.fields:
|
|
if r.name == rel_name:
|
|
e.add(opts, "Accessor for m2m field '%s' clashes with field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.name, f.name))
|
|
if r.name == rel_query_name:
|
|
e.add(opts, "Reverse query name for m2m field '%s' clashes with field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.name, f.name))
|
|
for r in rel_opts.many_to_many:
|
|
if r.name == rel_name:
|
|
e.add(opts, "Accessor for m2m field '%s' clashes with m2m field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.name, f.name))
|
|
if r.name == rel_query_name:
|
|
e.add(opts, "Reverse query name for m2m field '%s' clashes with m2m field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.name, f.name))
|
|
for r in rel_opts.get_all_related_many_to_many_objects():
|
|
if r.field is not f:
|
|
if r.get_accessor_name() == rel_name:
|
|
e.add(opts, "Accessor for m2m field '%s' clashes with related m2m field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.get_accessor_name(), f.name))
|
|
if r.get_accessor_name() == rel_query_name:
|
|
e.add(opts, "Reverse query name for m2m field '%s' clashes with related m2m field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.get_accessor_name(), f.name))
|
|
for r in rel_opts.get_all_related_objects():
|
|
if r.get_accessor_name() == rel_name:
|
|
e.add(opts, "Accessor for m2m field '%s' clashes with related field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.get_accessor_name(), f.name))
|
|
if r.get_accessor_name() == rel_query_name:
|
|
e.add(opts, "Reverse query name for m2m field '%s' clashes with related field '%s.%s'. Add a related_name argument to the definition for '%s'." % (f.name, rel_opts.object_name, r.get_accessor_name(), f.name))
|
|
|
|
# Check admin attribute.
|
|
if opts.admin is not None:
|
|
if not isinstance(opts.admin, models.AdminOptions):
|
|
e.add(opts, '"admin" attribute, if given, must be set to a models.AdminOptions() instance.')
|
|
else:
|
|
# list_display
|
|
if not isinstance(opts.admin.list_display, (list, tuple)):
|
|
e.add(opts, '"admin.list_display", if given, must be set to a list or tuple.')
|
|
else:
|
|
for fn in opts.admin.list_display:
|
|
try:
|
|
f = opts.get_field(fn)
|
|
except models.FieldDoesNotExist:
|
|
if not hasattr(cls, fn):
|
|
e.add(opts, '"admin.list_display" refers to %r, which isn\'t an attribute, method or property.' % fn)
|
|
else:
|
|
if isinstance(f, models.ManyToManyField):
|
|
e.add(opts, '"admin.list_display" doesn\'t support ManyToManyFields (%r).' % fn)
|
|
# list_display_links
|
|
if opts.admin.list_display_links and not opts.admin.list_display:
|
|
e.add(opts, '"admin.list_display" must be defined for "admin.list_display_links" to be used.')
|
|
if not isinstance(opts.admin.list_display_links, (list, tuple)):
|
|
e.add(opts, '"admin.list_display_links", if given, must be set to a list or tuple.')
|
|
else:
|
|
for fn in opts.admin.list_display_links:
|
|
try:
|
|
f = opts.get_field(fn)
|
|
except models.FieldDoesNotExist:
|
|
if not hasattr(cls, fn):
|
|
e.add(opts, '"admin.list_display_links" refers to %r, which isn\'t an attribute, method or property.' % fn)
|
|
if fn not in opts.admin.list_display:
|
|
e.add(opts, '"admin.list_display_links" refers to %r, which is not defined in "admin.list_display".' % fn)
|
|
# list_filter
|
|
if not isinstance(opts.admin.list_filter, (list, tuple)):
|
|
e.add(opts, '"admin.list_filter", if given, must be set to a list or tuple.')
|
|
else:
|
|
for fn in opts.admin.list_filter:
|
|
try:
|
|
f = opts.get_field(fn)
|
|
except models.FieldDoesNotExist:
|
|
e.add(opts, '"admin.list_filter" refers to %r, which isn\'t a field.' % fn)
|
|
# date_hierarchy
|
|
if opts.admin.date_hierarchy:
|
|
try:
|
|
f = opts.get_field(opts.admin.date_hierarchy)
|
|
except models.FieldDoesNotExist:
|
|
e.add(opts, '"admin.date_hierarchy" refers to %r, which isn\'t a field.' % opts.admin.date_hierarchy)
|
|
|
|
# Check ordering attribute.
|
|
if opts.ordering:
|
|
for field_name in opts.ordering:
|
|
if field_name == '?': continue
|
|
if field_name.startswith('-'):
|
|
field_name = field_name[1:]
|
|
if opts.order_with_respect_to and field_name == '_order':
|
|
continue
|
|
if '.' in field_name: continue # Skip ordering in the format 'table.field'.
|
|
try:
|
|
opts.get_field(field_name, many_to_many=False)
|
|
except models.FieldDoesNotExist:
|
|
e.add(opts, '"ordering" refers to "%s", a field that doesn\'t exist.' % field_name)
|
|
|
|
# Check core=True, if needed.
|
|
for related in opts.get_followed_related_objects():
|
|
if not related.edit_inline:
|
|
continue
|
|
try:
|
|
for f in related.opts.fields:
|
|
if f.core:
|
|
raise StopIteration
|
|
e.add(related.opts, "At least one field in %s should have core=True, because it's being edited inline by %s.%s." % (related.opts.object_name, opts.module_name, opts.object_name))
|
|
except StopIteration:
|
|
pass
|
|
|
|
# Check unique_together.
|
|
for ut in opts.unique_together:
|
|
for field_name in ut:
|
|
try:
|
|
f = opts.get_field(field_name, many_to_many=True)
|
|
except models.FieldDoesNotExist:
|
|
e.add(opts, '"unique_together" refers to %s, a field that doesn\'t exist. Check your syntax.' % field_name)
|
|
else:
|
|
if isinstance(f.rel, models.ManyToManyRel):
|
|
e.add(opts, '"unique_together" refers to %s. ManyToManyFields are not supported in unique_together.' % f.name)
|
|
|
|
return len(e.errors)
|
|
|
|
def validate(outfile=sys.stdout, silent_success=False):
|
|
"Validates all installed models."
|
|
try:
|
|
num_errors = get_validation_errors(outfile)
|
|
if silent_success and num_errors == 0:
|
|
return
|
|
outfile.write('%s error%s found.\n' % (num_errors, num_errors != 1 and 's' or ''))
|
|
except ImproperlyConfigured:
|
|
outfile.write("Skipping validation because things aren't configured properly.")
|
|
validate.args = ''
|
|
|
|
def _check_for_validation_errors(app=None):
|
|
"""Check that an app has no validation errors, and exit with errors if it does."""
|
|
try:
|
|
from cStringIO import StringIO
|
|
except ImportError:
|
|
from StringIO import StringIO
|
|
s = StringIO()
|
|
num_errors = get_validation_errors(s, app)
|
|
if num_errors:
|
|
if app:
|
|
sys.stderr.write(style.ERROR("Error: %s couldn't be installed, because there were errors in your model:\n" % app))
|
|
else:
|
|
sys.stderr.write(style.ERROR("Error: Couldn't install apps, because there were errors in one or more models:\n"))
|
|
s.seek(0)
|
|
sys.stderr.write(s.read())
|
|
sys.exit(1)
|
|
|
|
def runserver(addr, port, use_reloader=True, admin_media_dir=''):
|
|
"Starts a lightweight Web server for development."
|
|
from django.core.servers.basehttp import run, AdminMediaHandler, WSGIServerException
|
|
from django.core.handlers.wsgi import WSGIHandler
|
|
if not addr:
|
|
addr = '127.0.0.1'
|
|
if not port.isdigit():
|
|
sys.stderr.write(style.ERROR("Error: %r is not a valid port number.\n" % port))
|
|
sys.exit(1)
|
|
quit_command = sys.platform == 'win32' and 'CTRL-BREAK' or 'CONTROL-C'
|
|
def inner_run():
|
|
from django.conf import settings
|
|
print "Validating models..."
|
|
validate()
|
|
print "\nDjango version %s, using settings %r" % (get_version(), settings.SETTINGS_MODULE)
|
|
print "Development server is running at http://%s:%s/" % (addr, port)
|
|
print "Quit the server with %s." % quit_command
|
|
try:
|
|
import django
|
|
path = admin_media_dir or django.__path__[0] + '/contrib/admin/media'
|
|
handler = AdminMediaHandler(WSGIHandler(), path)
|
|
run(addr, int(port), handler)
|
|
except WSGIServerException, e:
|
|
# Use helpful error messages instead of ugly tracebacks.
|
|
ERRORS = {
|
|
13: "You don't have permission to access that port.",
|
|
98: "That port is already in use.",
|
|
99: "That IP address can't be assigned-to.",
|
|
}
|
|
try:
|
|
error_text = ERRORS[e.args[0].args[0]]
|
|
except (AttributeError, KeyError):
|
|
error_text = str(e)
|
|
sys.stderr.write(style.ERROR("Error: %s" % error_text) + '\n')
|
|
sys.exit(1)
|
|
except KeyboardInterrupt:
|
|
sys.exit(0)
|
|
if use_reloader:
|
|
from django.utils import autoreload
|
|
autoreload.main(inner_run)
|
|
else:
|
|
inner_run()
|
|
runserver.args = '[--noreload] [--adminmedia=ADMIN_MEDIA_PATH] [optional port number, or ipaddr:port]'
|
|
|
|
def createcachetable(tablename):
|
|
"Creates the table needed to use the SQL cache backend"
|
|
from django.db import backend, connection, transaction, get_creation_module, models
|
|
data_types = get_creation_module().DATA_TYPES
|
|
fields = (
|
|
# "key" is a reserved word in MySQL, so use "cache_key" instead.
|
|
models.CharField(name='cache_key', maxlength=255, unique=True, primary_key=True),
|
|
models.TextField(name='value'),
|
|
models.DateTimeField(name='expires', db_index=True),
|
|
)
|
|
table_output = []
|
|
index_output = []
|
|
for f in fields:
|
|
field_output = [backend.quote_name(f.name), data_types[f.get_internal_type()] % f.__dict__]
|
|
field_output.append("%sNULL" % (not f.null and "NOT " or ""))
|
|
if f.unique:
|
|
field_output.append("UNIQUE")
|
|
if f.primary_key:
|
|
field_output.append("PRIMARY KEY")
|
|
if f.db_index:
|
|
unique = f.unique and "UNIQUE " or ""
|
|
index_output.append("CREATE %sINDEX %s_%s ON %s (%s);" % \
|
|
(unique, tablename, f.name, backend.quote_name(tablename),
|
|
backend.quote_name(f.name)))
|
|
table_output.append(" ".join(field_output))
|
|
full_statement = ["CREATE TABLE %s (" % backend.quote_name(tablename)]
|
|
for i, line in enumerate(table_output):
|
|
full_statement.append(' %s%s' % (line, i < len(table_output)-1 and ',' or ''))
|
|
full_statement.append(');')
|
|
curs = connection.cursor()
|
|
curs.execute("\n".join(full_statement))
|
|
for statement in index_output:
|
|
curs.execute(statement)
|
|
transaction.commit_unless_managed()
|
|
createcachetable.args = "[tablename]"
|
|
|
|
def run_shell(use_plain=False):
|
|
"Runs a Python interactive interpreter. Tries to use IPython, if it's available."
|
|
try:
|
|
if use_plain:
|
|
# Don't bother loading IPython, because the user wants plain Python.
|
|
raise ImportError
|
|
import IPython
|
|
# Explicitly pass an empty list as arguments, because otherwise IPython
|
|
# would use sys.argv from this script.
|
|
shell = IPython.Shell.IPShell(argv=[])
|
|
shell.mainloop()
|
|
except ImportError:
|
|
import code
|
|
try: # Try activating rlcompleter, because it's handy.
|
|
import readline
|
|
except ImportError:
|
|
pass
|
|
else:
|
|
# We don't have to wrap the following import in a 'try', because
|
|
# we already know 'readline' was imported successfully.
|
|
import rlcompleter
|
|
readline.parse_and_bind("tab:complete")
|
|
code.interact()
|
|
run_shell.args = '[--plain]'
|
|
|
|
def dbshell():
|
|
"Runs the command-line client for the current DATABASE_ENGINE."
|
|
from django.db import runshell
|
|
runshell()
|
|
dbshell.args = ""
|
|
|
|
def runfcgi(args):
|
|
"Runs this project as a FastCGI application. Requires flup."
|
|
from django.conf import settings
|
|
from django.utils import translation
|
|
# Activate the current language, because it won't get activated later.
|
|
try:
|
|
translation.activate(settings.LANGUAGE_CODE)
|
|
except AttributeError:
|
|
pass
|
|
from django.core.servers.fastcgi import runfastcgi
|
|
runfastcgi(args)
|
|
runfcgi.args = '[various KEY=val options, use `runfcgi help` for help]'
|
|
|
|
def test(app_labels, verbosity=1):
|
|
"Runs the test suite for the specified applications"
|
|
from django.conf import settings
|
|
from django.db.models import get_app, get_apps
|
|
|
|
if len(app_labels) == 0:
|
|
app_list = get_apps()
|
|
else:
|
|
app_list = [get_app(app_label) for app_label in app_labels]
|
|
|
|
test_path = settings.TEST_RUNNER.split('.')
|
|
# Allow for Python 2.5 relative paths
|
|
if len(test_path) > 1:
|
|
test_module_name = '.'.join(test_path[:-1])
|
|
else:
|
|
test_module_name = '.'
|
|
test_module = __import__(test_module_name, [],[],test_path[-1])
|
|
test_runner = getattr(test_module, test_path[-1])
|
|
|
|
test_runner(app_list, verbosity)
|
|
test.help_doc = 'Runs the test suite for the specified applications, or the entire site if no apps are specified'
|
|
test.args = '[--verbosity] ' + APP_ARGS
|
|
|
|
# Utilities for command-line script
|
|
|
|
DEFAULT_ACTION_MAPPING = {
|
|
'adminindex': get_admin_index,
|
|
'createcachetable' : createcachetable,
|
|
'dbshell': dbshell,
|
|
'diffsettings': diffsettings,
|
|
'inspectdb': inspectdb,
|
|
'install': install,
|
|
'reset': reset,
|
|
'runfcgi': runfcgi,
|
|
'runserver': runserver,
|
|
'shell': run_shell,
|
|
'sql': get_sql_create,
|
|
'sqlall': get_sql_all,
|
|
'sqlclear': get_sql_delete,
|
|
'sqlindexes': get_sql_indexes,
|
|
'sqlinitialdata': get_sql_initial_data,
|
|
'sqlreset': get_sql_reset,
|
|
'sqlsequencereset': get_sql_sequence_reset,
|
|
'startapp': startapp,
|
|
'startproject': startproject,
|
|
'syncdb': syncdb,
|
|
'validate': validate,
|
|
'test':test,
|
|
}
|
|
|
|
NO_SQL_TRANSACTION = (
|
|
'adminindex',
|
|
'createcachetable',
|
|
'dbshell',
|
|
'diffsettings',
|
|
'install',
|
|
'reset',
|
|
'sqlindexes',
|
|
'syncdb',
|
|
)
|
|
|
|
class DjangoOptionParser(OptionParser):
|
|
def print_usage_and_exit(self):
|
|
self.print_help(sys.stderr)
|
|
sys.exit(1)
|
|
|
|
def get_usage(action_mapping):
|
|
"""
|
|
Returns a usage string. Doesn't do the options stuff, because optparse
|
|
takes care of that.
|
|
"""
|
|
usage = ["%prog action [options]\nactions:"]
|
|
available_actions = action_mapping.keys()
|
|
available_actions.sort()
|
|
for a in available_actions:
|
|
func = action_mapping[a]
|
|
usage.append(" %s %s" % (a, func.args))
|
|
usage.extend(textwrap.wrap(getattr(func, 'help_doc', textwrap.dedent(func.__doc__.strip())), initial_indent=' ', subsequent_indent=' '))
|
|
usage.append("")
|
|
return '\n'.join(usage[:-1]) # Cut off last list element, an empty space.
|
|
|
|
def print_error(msg, cmd):
|
|
sys.stderr.write(style.ERROR('Error: %s' % msg) + '\nRun "%s --help" for help.\n' % cmd)
|
|
sys.exit(1)
|
|
|
|
def execute_from_command_line(action_mapping=DEFAULT_ACTION_MAPPING, argv=None):
|
|
# Use sys.argv if we've not passed in a custom argv
|
|
if argv is None:
|
|
argv = sys.argv
|
|
|
|
# Parse the command-line arguments. optparse handles the dirty work.
|
|
parser = DjangoOptionParser(usage=get_usage(action_mapping), version=get_version())
|
|
parser.add_option('--settings',
|
|
help='Python path to settings module, e.g. "myproject.settings.main". If this isn\'t provided, the DJANGO_SETTINGS_MODULE environment variable will be used.')
|
|
parser.add_option('--pythonpath',
|
|
help='Lets you manually add a directory the Python path, e.g. "/home/djangoprojects/myproject".')
|
|
parser.add_option('--plain', action='store_true', dest='plain',
|
|
help='Tells Django to use plain Python, not IPython, for "shell" command.')
|
|
parser.add_option('--noinput', action='store_false', dest='interactive', default=True,
|
|
help='Tells Django to NOT prompt the user for input of any kind.')
|
|
parser.add_option('--noreload', action='store_false', dest='use_reloader', default=True,
|
|
help='Tells Django to NOT use the auto-reloader when running the development server.')
|
|
parser.add_option('--verbosity', action='store', dest='verbosity', default='1',
|
|
type='choice', choices=['0', '1', '2'],
|
|
help='Verbosity level; 0=minimal output, 1=normal output, 2=all output'),
|
|
parser.add_option('--adminmedia', dest='admin_media_path', default='', help='Specifies the directory from which to serve admin media for runserver.'),
|
|
|
|
options, args = parser.parse_args(argv[1:])
|
|
|
|
# Take care of options.
|
|
if options.settings:
|
|
os.environ['DJANGO_SETTINGS_MODULE'] = options.settings
|
|
if options.pythonpath:
|
|
sys.path.insert(0, options.pythonpath)
|
|
|
|
# Run the appropriate action. Unfortunately, optparse can't handle
|
|
# positional arguments, so this has to parse/validate them.
|
|
try:
|
|
action = args[0]
|
|
except IndexError:
|
|
parser.print_usage_and_exit()
|
|
if not action_mapping.has_key(action):
|
|
print_error("Your action, %r, was invalid." % action, argv[0])
|
|
|
|
# Switch to English, because django-admin.py creates database content
|
|
# like permissions, and those shouldn't contain any translations.
|
|
# But only do this if we should have a working settings file.
|
|
if action not in ('startproject', 'startapp'):
|
|
from django.utils import translation
|
|
translation.activate('en-us')
|
|
|
|
if action == 'shell':
|
|
action_mapping[action](options.plain is True)
|
|
elif action in ('validate', 'diffsettings', 'dbshell'):
|
|
action_mapping[action]()
|
|
elif action == 'syncdb':
|
|
action_mapping[action](int(options.verbosity), options.interactive)
|
|
elif action == 'inspectdb':
|
|
try:
|
|
for line in action_mapping[action]():
|
|
print line
|
|
except NotImplementedError:
|
|
sys.stderr.write(style.ERROR("Error: %r isn't supported for the currently selected database backend.\n" % action))
|
|
sys.exit(1)
|
|
elif action == 'createcachetable':
|
|
try:
|
|
action_mapping[action](args[1])
|
|
except IndexError:
|
|
parser.print_usage_and_exit()
|
|
elif action == 'test':
|
|
try:
|
|
action_mapping[action](args[1:], int(options.verbosity))
|
|
except IndexError:
|
|
parser.print_usage_and_exit()
|
|
elif action in ('startapp', 'startproject'):
|
|
try:
|
|
name = args[1]
|
|
except IndexError:
|
|
parser.print_usage_and_exit()
|
|
action_mapping[action](name, os.getcwd())
|
|
elif action == 'runserver':
|
|
if len(args) < 2:
|
|
addr = ''
|
|
port = '8000'
|
|
else:
|
|
try:
|
|
addr, port = args[1].split(':')
|
|
except ValueError:
|
|
addr, port = '', args[1]
|
|
action_mapping[action](addr, port, options.use_reloader, options.admin_media_path)
|
|
elif action == 'runfcgi':
|
|
action_mapping[action](args[1:])
|
|
else:
|
|
from django.db import models
|
|
validate(silent_success=True)
|
|
try:
|
|
mod_list = [models.get_app(app_label) for app_label in args[1:]]
|
|
except ImportError, e:
|
|
sys.stderr.write(style.ERROR("Error: %s. Are you sure your INSTALLED_APPS setting is correct?\n" % e))
|
|
sys.exit(1)
|
|
if not mod_list:
|
|
parser.print_usage_and_exit()
|
|
if action not in NO_SQL_TRANSACTION:
|
|
print style.SQL_KEYWORD("BEGIN;")
|
|
for mod in mod_list:
|
|
if action == 'reset':
|
|
output = action_mapping[action](mod, options.interactive)
|
|
else:
|
|
output = action_mapping[action](mod)
|
|
if output:
|
|
print '\n'.join(output)
|
|
if action not in NO_SQL_TRANSACTION:
|
|
print style.SQL_KEYWORD("COMMIT;")
|
|
|
|
def setup_environ(settings_mod):
|
|
"""
|
|
Configure the runtime environment. This can also be used by external
|
|
scripts wanting to set up a similar environment to manage.py.
|
|
"""
|
|
# Add this project to sys.path so that it's importable in the conventional
|
|
# way. For example, if this file (manage.py) lives in a directory
|
|
# "myproject", this code would add "/path/to/myproject" to sys.path.
|
|
project_directory = os.path.dirname(settings_mod.__file__)
|
|
project_name = os.path.basename(project_directory)
|
|
sys.path.append(os.path.join(project_directory, '..'))
|
|
project_module = __import__(project_name, '', '', [''])
|
|
sys.path.pop()
|
|
|
|
# Set DJANGO_SETTINGS_MODULE appropriately.
|
|
os.environ['DJANGO_SETTINGS_MODULE'] = '%s.settings' % project_name
|
|
return project_directory
|
|
|
|
def execute_manager(settings_mod, argv=None):
|
|
project_directory = setup_environ(settings_mod)
|
|
action_mapping = DEFAULT_ACTION_MAPPING.copy()
|
|
|
|
# Remove the "startproject" command from the action_mapping, because that's
|
|
# a django-admin.py command, not a manage.py command.
|
|
del action_mapping['startproject']
|
|
|
|
# Override the startapp handler so that it always uses the
|
|
# project_directory, not the current working directory (which is default).
|
|
action_mapping['startapp'] = lambda app_name, directory: startapp(app_name, project_directory)
|
|
action_mapping['startapp'].__doc__ = startapp.__doc__
|
|
action_mapping['startapp'].help_doc = startapp.help_doc
|
|
action_mapping['startapp'].args = startapp.args
|
|
|
|
# Run the django-admin.py command.
|
|
execute_from_command_line(action_mapping, argv)
|