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Code Issues 32 Releases Wiki Activity

Refactored get_drop_foreignkey_sql() to DatabaseOperations.drop_foreignkey_sql(). Refs #5106

Browse Source 
git-svn-id: http://code.djangoproject.com/svn/django/trunk@5956 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty
2007-08-19 23:07:34 +00:00
parent 8e84d35d38
commit 23a736dca9
10 changed files with 16 additions and 23 deletions
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2
django/core/management/sql.py
View File

@@ -147,7 +147,7 @@ def sql_delete(app, style):
output.append('%s %s %s %s;' % \
(style.SQL_KEYWORD('ALTER TABLE'),
style.SQL_TABLE(backend.quote_name(table)),
style.SQL_KEYWORD(backend.get_drop_foreignkey_sql()),
style.SQL_KEYWORD(connection.ops.drop_foreignkey_sql()),
style.SQL_FIELD(truncate_name(r_name, backend.get_max_name_length()))))
del references_to_delete[model]
if model._meta.has_auto_field and hasattr(backend, 'get_drop_sequence'):

6
django/db/backends/__init__.py
View File

@@ -85,3 +85,9 @@ class BaseDatabaseOperations(object):
during a CREATE TABLE statement.
"""
return ''
def drop_foreignkey_sql(self):
"""
Returns the SQL command that drops a foreign key.
"""
return "DROP CONSTRAINT"

3
django/db/backends/ado_mssql/base.py
View File

@@ -113,9 +113,6 @@ def get_random_function_sql():
def get_fulltext_search_sql(field_name):
raise NotImplementedError
def get_drop_foreignkey_sql():
return "DROP CONSTRAINT"
def get_pk_default_value():
return "DEFAULT"

1
django/db/backends/dummy/base.py
View File

@@ -47,7 +47,6 @@ get_last_insert_id = complain
get_limit_offset_sql = complain
get_random_function_sql = complain
get_fulltext_search_sql = complain
get_drop_foreignkey_sql = complain
get_pk_default_value = complain
get_max_name_length = ignore
get_start_transaction_sql = complain

6
django/db/backends/mysql/base.py
View File

@@ -71,6 +71,9 @@ class DatabaseOperations(BaseDatabaseOperations):
sql = "CAST(DATE_FORMAT(%s, '%s') AS DATETIME)" % (field_name, format_str)
return sql
def drop_foreignkey_sql(self):
return "DROP FOREIGN KEY"
class DatabaseWrapper(BaseDatabaseWrapper):
ops = DatabaseOperations()
@@ -164,9 +167,6 @@ def get_random_function_sql():
def get_fulltext_search_sql(field_name):
return 'MATCH (%s) AGAINST (%%s IN BOOLEAN MODE)' % field_name
def get_drop_foreignkey_sql():
return "DROP FOREIGN KEY"
def get_pk_default_value():
return "DEFAULT"

6
django/db/backends/mysql_old/base.py
View File

@@ -81,6 +81,9 @@ class DatabaseOperations(BaseDatabaseOperations):
sql = "CAST(DATE_FORMAT(%s, '%s') AS DATETIME)" % (field_name, format_str)
return sql
def drop_foreignkey_sql(self):
return "DROP FOREIGN KEY"
class DatabaseWrapper(BaseDatabaseWrapper):
ops = DatabaseOperations()
@@ -183,9 +186,6 @@ def get_random_function_sql():
def get_fulltext_search_sql(field_name):
return 'MATCH (%s) AGAINST (%%s IN BOOLEAN MODE)' % field_name
def get_drop_foreignkey_sql():
return "DROP FOREIGN KEY"
def get_pk_default_value():
return "DEFAULT"

3
django/db/backends/oracle/base.py
View File

@@ -189,9 +189,6 @@ def get_random_function_sql():
def get_fulltext_search_sql(field_name):
raise NotImplementedError
def get_drop_foreignkey_sql():
return "DROP CONSTRAINT"
def get_pk_default_value():
return "DEFAULT"

3
django/db/backends/postgresql/base.py
View File

@@ -143,9 +143,6 @@ def get_random_function_sql():
def get_fulltext_search_sql(field_name):
raise NotImplementedError
def get_drop_foreignkey_sql():
return "DROP CONSTRAINT"
def get_pk_default_value():
return "DEFAULT"

3
django/db/backends/postgresql_psycopg2/base.py
View File

@@ -97,9 +97,6 @@ def get_random_function_sql():
def get_fulltext_search_sql(field_name):
raise NotImplementedError
def get_drop_foreignkey_sql():
return "DROP CONSTRAINT"
def get_pk_default_value():
return "DEFAULT"

6
django/db/backends/sqlite3/base.py
View File

@@ -45,6 +45,9 @@ class DatabaseOperations(BaseDatabaseOperations):
# function django_date_trunc that's registered in connect().
return 'django_date_trunc("%s", %s)' % (lookup_type.lower(), field_name)
def drop_foreignkey_sql(self):
return ""
class DatabaseWrapper(BaseDatabaseWrapper):
ops = DatabaseOperations()
@@ -127,9 +130,6 @@ def get_random_function_sql():
def get_fulltext_search_sql(field_name):
raise NotImplementedError
def get_drop_foreignkey_sql():
return ""
def get_pk_default_value():
return "NULL"