97 lines
4.1 KiB
Python
97 lines
4.1 KiB
Python
import os
|
|
from django.conf import settings
|
|
from django.core.exceptions import ImproperlyConfigured
|
|
from django.core.management import call_command
|
|
from django.db.backends.sqlite3.creation import DatabaseCreation
|
|
|
|
class SpatiaLiteCreation(DatabaseCreation):
|
|
|
|
def create_test_db(self, verbosity=1, autoclobber=False):
|
|
"""
|
|
Creates a test database, prompting the user for confirmation if the
|
|
database already exists. Returns the name of the test database created.
|
|
|
|
This method is overloaded to load up the SpatiaLite initialization
|
|
SQL prior to calling the `syncdb` command.
|
|
"""
|
|
if verbosity >= 1:
|
|
print "Creating test database '%s'..." % self.connection.alias
|
|
|
|
test_database_name = self._create_test_db(verbosity, autoclobber)
|
|
|
|
self.connection.close()
|
|
|
|
self.connection.settings_dict["NAME"] = test_database_name
|
|
# Confirm the feature set of the test database
|
|
self.connection.features.confirm()
|
|
# Need to load the SpatiaLite initialization SQL before running `syncdb`.
|
|
self.load_spatialite_sql()
|
|
call_command('syncdb', verbosity=verbosity, interactive=False, database=self.connection.alias)
|
|
|
|
if settings.CACHE_BACKEND.startswith('db://'):
|
|
from django.core.cache import parse_backend_uri
|
|
_, cache_name, _ = parse_backend_uri(settings.CACHE_BACKEND)
|
|
call_command('createcachetable', cache_name)
|
|
|
|
# Get a cursor (even though we don't need one yet). This has
|
|
# the side effect of initializing the test database.
|
|
cursor = self.connection.cursor()
|
|
|
|
return test_database_name
|
|
|
|
def sql_indexes_for_field(self, model, f, style):
|
|
"Return any spatial index creation SQL for the field."
|
|
from django.contrib.gis.db.models.fields import GeometryField
|
|
|
|
output = super(SpatiaLiteCreation, self).sql_indexes_for_field(model, f, style)
|
|
|
|
if isinstance(f, GeometryField):
|
|
gqn = self.connection.ops.geo_quote_name
|
|
qn = self.connection.ops.quote_name
|
|
db_table = model._meta.db_table
|
|
|
|
output.append(style.SQL_KEYWORD('SELECT ') +
|
|
style.SQL_TABLE('AddGeometryColumn') + '(' +
|
|
style.SQL_TABLE(gqn(db_table)) + ', ' +
|
|
style.SQL_FIELD(gqn(f.column)) + ', ' +
|
|
style.SQL_FIELD(str(f.srid)) + ', ' +
|
|
style.SQL_COLTYPE(gqn(f.geom_type)) + ', ' +
|
|
style.SQL_KEYWORD(str(f.dim)) + ', ' +
|
|
style.SQL_KEYWORD(str(int(not f.null))) +
|
|
');')
|
|
|
|
if f.spatial_index:
|
|
output.append(style.SQL_KEYWORD('SELECT ') +
|
|
style.SQL_TABLE('CreateSpatialIndex') + '(' +
|
|
style.SQL_TABLE(gqn(db_table)) + ', ' +
|
|
style.SQL_FIELD(gqn(f.column)) + ');')
|
|
|
|
return output
|
|
|
|
def load_spatialite_sql(self):
|
|
"""
|
|
This routine loads up the SpatiaLite SQL file.
|
|
"""
|
|
# Getting the location of the SpatiaLite SQL file, and confirming
|
|
# it exists.
|
|
spatialite_sql = self.spatialite_init_file()
|
|
if not os.path.isfile(spatialite_sql):
|
|
raise ImproperlyConfigured('Could not find the required SpatiaLite initialization '
|
|
'SQL file (necessary for testing): %s' % spatialite_sql)
|
|
|
|
# Opening up the SpatiaLite SQL initialization file and executing
|
|
# as a script.
|
|
sql_fh = open(spatialite_sql, 'r')
|
|
try:
|
|
cur = self.connection._cursor()
|
|
cur.executescript(sql_fh.read())
|
|
finally:
|
|
sql_fh.close()
|
|
|
|
def spatialite_init_file(self):
|
|
# SPATIALITE_SQL may be placed in settings to tell GeoDjango
|
|
# to use a specific path to the SpatiaLite initilization SQL.
|
|
return getattr(settings, 'SPATIALITE_SQL',
|
|
'init_spatialite-%s.%s.sql' %
|
|
self.connection.ops.spatial_version[:2])
|