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Code Issues 32 Releases Wiki Activity

Fixed #5461 -- Refactored the database backend code to use classes for the creation and introspection modules. Introduces a new validation module for DB-specific validation. This is a backwards incompatible change; see the wiki for details.

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@8296 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee
2008-08-11 12:11:25 +00:00
parent cec69eb70d
commit 9dc4ba875f
43 changed files with 1528 additions and 1423 deletions
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27
django/core/management/commands/syncdb.py
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@@ -21,7 +21,7 @@ class Command(NoArgsCommand):
def handle_noargs(self, **options):
from django.db import connection, transaction, models
from django.conf import settings
from django.core.management.sql import table_names, installed_models, sql_model_create, sql_for_pending_references, many_to_many_sql_for_model, custom_sql_for_model, sql_indexes_for_model, emit_post_sync_signal
from django.core.management.sql import custom_sql_for_model, emit_post_sync_signal
verbosity = int(options.get('verbosity', 1))
interactive = options.get('interactive')
@@ -50,16 +50,9 @@ class Command(NoArgsCommand):
cursor = connection.cursor()
if connection.features.uses_case_insensitive_names:
table_name_converter = lambda x: x.upper()
else:
table_name_converter = lambda x: x
# Get a list of all existing database tables, so we know what needs to
# be added.
tables = [table_name_converter(name) for name in table_names()]
# Get a list of already installed *models* so that references work right.
seen_models = installed_models(tables)
tables = connection.introspection.table_names()
seen_models = connection.introspection.installed_models(tables)
created_models = set()
pending_references = {}
@@ -71,21 +64,21 @@ class Command(NoArgsCommand):
# 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 table_name_converter(model._meta.db_table) in tables:
if connection.introspection.table_name_converter(model._meta.db_table) in tables:
continue
sql, references = sql_model_create(model, self.style, seen_models)
sql, references = connection.creation.sql_create_model(model, self.style, seen_models)
seen_models.add(model)
created_models.add(model)
for refto, refs in references.items():
pending_references.setdefault(refto, []).extend(refs)
if refto in seen_models:
sql.extend(sql_for_pending_references(refto, self.style, pending_references))
sql.extend(sql_for_pending_references(model, self.style, pending_references))
sql.extend(connection.creation.sql_for_pending_references(refto, self.style, pending_references))
sql.extend(connection.creation.sql_for_pending_references(model, self.style, pending_references))
if verbosity >= 1:
print "Creating table %s" % model._meta.db_table
for statement in sql:
cursor.execute(statement)
tables.append(table_name_converter(model._meta.db_table))
tables.append(connection.introspection.table_name_converter(model._meta.db_table))
# Create the m2m tables. This must be done after all tables have been created
# to ensure that all referred tables will exist.
@@ -94,7 +87,7 @@ class Command(NoArgsCommand):
model_list = models.get_models(app)
for model in model_list:
if model in created_models:
sql = many_to_many_sql_for_model(model, self.style)
sql = connection.creation.sql_for_many_to_many(model, self.style)
if sql:
if verbosity >= 2:
print "Creating many-to-many tables for %s.%s model" % (app_name, model._meta.object_name)
@@ -140,7 +133,7 @@ class Command(NoArgsCommand):
app_name = app.__name__.split('.')[-2]
for model in models.get_models(app):
if model in created_models:
index_sql = sql_indexes_for_model(model, self.style)
index_sql = connection.creation.sql_indexes_for_model(model, self.style)
if index_sql:
if verbosity >= 1:
print "Installing index for %s.%s model" % (app_name, model._meta.object_name)