91 lines
3.9 KiB
Python
91 lines
3.9 KiB
Python
import os
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import sys
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from django.db.backends.creation import BaseDatabaseCreation
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from django.utils.six.moves import input
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class DatabaseCreation(BaseDatabaseCreation):
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# SQLite doesn't actually support most of these types, but it "does the right
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# thing" given more verbose field definitions, so leave them as is so that
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# schema inspection is more useful.
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data_types = {
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'AutoField': 'integer',
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'BooleanField': 'bool',
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'CharField': 'varchar(%(max_length)s)',
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'CommaSeparatedIntegerField': 'varchar(%(max_length)s)',
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'DateField': 'date',
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'DateTimeField': 'datetime',
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'DecimalField': 'decimal',
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'FileField': 'varchar(%(max_length)s)',
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'FilePathField': 'varchar(%(max_length)s)',
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'FloatField': 'real',
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'IntegerField': 'integer',
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'BigIntegerField': 'bigint',
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'IPAddressField': 'char(15)',
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'GenericIPAddressField': 'char(39)',
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'NullBooleanField': 'bool',
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'OneToOneField': 'integer',
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'PositiveIntegerField': 'integer unsigned',
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'PositiveSmallIntegerField': 'smallint unsigned',
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'SlugField': 'varchar(%(max_length)s)',
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'SmallIntegerField': 'smallint',
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'TextField': 'text',
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'TimeField': 'time',
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}
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def sql_for_pending_references(self, model, style, pending_references):
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"SQLite3 doesn't support constraints"
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return []
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def sql_remove_table_constraints(self, model, references_to_delete, style):
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"SQLite3 doesn't support constraints"
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return []
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def _get_test_db_name(self):
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test_database_name = self.connection.settings_dict['TEST_NAME']
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if test_database_name and test_database_name != ':memory:':
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return test_database_name
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return ':memory:'
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def _create_test_db(self, verbosity, autoclobber):
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test_database_name = self._get_test_db_name()
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if test_database_name != ':memory:':
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# Erase the old test database
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if verbosity >= 1:
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print("Destroying old test database '%s'..." % self.connection.alias)
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if os.access(test_database_name, os.F_OK):
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if not autoclobber:
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confirm = input("Type 'yes' if you would like to try deleting the test database '%s', or 'no' to cancel: " % test_database_name)
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if autoclobber or confirm == 'yes':
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try:
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os.remove(test_database_name)
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except Exception as e:
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sys.stderr.write("Got an error deleting the old test database: %s\n" % e)
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sys.exit(2)
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else:
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print("Tests cancelled.")
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sys.exit(1)
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return test_database_name
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def _destroy_test_db(self, test_database_name, verbosity):
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if test_database_name and test_database_name != ":memory:":
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# Remove the SQLite database file
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os.remove(test_database_name)
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def set_autocommit(self):
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self.connection.connection.isolation_level = None
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def test_db_signature(self):
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"""
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Returns a tuple that uniquely identifies a test database.
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This takes into account the special cases of ":memory:" and "" for
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SQLite since the databases will be distinct despite having the same
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TEST_NAME. See http://www.sqlite.org/inmemorydb.html
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"""
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settings_dict = self.connection.settings_dict
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test_dbname = self._get_test_db_name()
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sig = [self.connection.settings_dict['NAME']]
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if test_dbname == ':memory:':
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sig.append(self.connection.alias)
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return tuple(sig)
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