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Code Issues 25 Releases Wiki Activity

Add a SQlite backend. One test passes!

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This commit is contained in:
Andrew Godwin 2012-08-18 14:16:52 +01:00
parent 0b01395108
commit d3d1e59921
3 changed files with 17 additions and 6 deletions
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5
django/db/backends/sqlite3/base.py
View File

@ -18,6 +18,7 @@ from django.db.backends.signals import connection_created
from django.db.backends.sqlite3.client import DatabaseClient
from django.db.backends.sqlite3.creation import DatabaseCreation
from django.db.backends.sqlite3.introspection import DatabaseIntrospection
from django.db.backends.sqlite3.schema import DatabaseSchemaEditor
from django.utils.dateparse import parse_date, parse_datetime, parse_time
from django.utils.functional import cached_property
from django.utils.safestring import SafeString
@ -336,6 +337,10 @@ class DatabaseWrapper(BaseDatabaseWrapper):
if self.settings_dict['NAME'] != ":memory:":
BaseDatabaseWrapper.close(self)
def schema_editor(self):
"Returns a new instance of this backend's SchemaEditor"
return DatabaseSchemaEditor(self)
FORMAT_QMARK_REGEX = re.compile(r'(?<!%)%s')
class SQLiteCursorWrapper(Database.Cursor):

6
django/db/backends/sqlite3/schema.py Normal file
View File

@ -0,0 +1,6 @@
from django.db.backends.schema import BaseDatabaseSchemaEditor
class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
sql_delete_table = "DROP TABLE %(table)s"

12
tests/modeltests/schema/tests.py
View File

@ -44,18 +44,18 @@ class SchemaTests(TestCase):
# Remove any M2M tables first
for field in model._meta.local_many_to_many:
try:
cursor.execute("DROP TABLE %s CASCADE" % (
connection.ops.quote_name(field.rel.through._meta.db_table),
))
cursor.execute(connection.schema_editor().sql_delete_table % {
"table": connection.ops.quote_name(field.rel.through._meta.db_table),
})
except DatabaseError:
connection.rollback()
else:
connection.commit()
# Then remove the main tables
try:
cursor.execute("DROP TABLE %s CASCADE" % (
connection.ops.quote_name(model._meta.db_table),
))
cursor.execute(connection.schema_editor().sql_delete_table % {
"table": connection.ops.quote_name(model._meta.db_table),
})
except DatabaseError:
connection.rollback()
else: