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Moved get_primary_key_column implementation to base 

Refs #17574.
This commit is contained in:
Claude Paroz 2012-09-08 10:24:13 +02:00
parent 3622be42b0
commit 09a99714c0
2 changed files with 5 additions and 12 deletions
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7
django/db/backends/__init__.py
View File

@ -1034,9 +1034,12 @@ class BaseDatabaseIntrospection(object):
def get_primary_key_column(self, cursor, table_name):
"""
Backends can override this to return the column name of the primary key for the given table.
Returns the name of the primary key column for the given table.
"""
raise NotImplementedError
for column in six.iteritems(self.get_indexes(cursor, table_name)):
if column[1]['primary_key']:
return column[0]
return None
def get_indexes(self, cursor, table_name):
"""

10
django/db/backends/mysql/introspection.py
View File

@ -2,7 +2,6 @@ import re
from .base import FIELD_TYPE
from django.db.backends import BaseDatabaseIntrospection
from django.utils import six
foreign_key_re = re.compile(r"\sCONSTRAINT `[^`]*` FOREIGN KEY \(`([^`]*)`\) REFERENCES `([^`]*)` \(`([^`]*)`\)")
@ -88,15 +87,6 @@ class DatabaseIntrospection(BaseDatabaseIntrospection):
key_columns.extend(cursor.fetchall())
return key_columns
def get_primary_key_column(self, cursor, table_name):
"""
Returns the name of the primary key column for the given table
"""
for column in six.iteritems(self.get_indexes(cursor, table_name)):
if column[1]['primary_key']:
return column[0]
return None
def get_indexes(self, cursor, table_name):
cursor.execute("SHOW INDEX FROM %s" % self.connection.ops.quote_name(table_name))
# Do a two-pass search for indexes: on first pass check which indexes