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Refactor dictfetch* methods from mysql backend out into a seperate module; this is so that future db backends that need these functions can share them.

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@276 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Jacob Kaplan-Moss 2005-07-21 15:48:20 +00:00
parent 52d761cc7a
commit 78cff1837a
2 changed files with 25 additions and 21 deletions
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22
django/core/db/backends/mysql.py
View File

@ -5,6 +5,7 @@ Requires MySQLdb: http://sourceforge.net/projects/mysql-python
"""
from django.core.db import base, typecasts
from django.core.db.dicthelpers import *
import MySQLdb as Database
from MySQLdb.converters import conversions
from MySQLdb.constants import FIELD_TYPE
@ -46,27 +47,6 @@ class DatabaseWrapper:
self.connection.close()
self.connection = None
def _dict_helper(desc, row):
"Returns a dictionary for the given cursor.description and result row."
return dict([(desc[col[0]][0], col[1]) for col in enumerate(row)])
def dictfetchone(cursor):
"Returns a row from the cursor as a dict"
row = cursor.fetchone()
if not row:
return None
return _dict_helper(cursor.description, row)
def dictfetchmany(cursor, number):
"Returns a certain number of rows from a cursor as a dict"
desc = cursor.description
return [_dict_helper(desc, row) for row in cursor.fetchmany(number)]
def dictfetchall(cursor):
"Returns all rows from a cursor as a dict"
desc = cursor.description
return [_dict_helper(desc, row) for row in cursor.fetchall()]
def get_last_insert_id(cursor, table_name, pk_name):
cursor.execute("SELECT LAST_INSERT_ID()")
return cursor.fetchone()[0]

24
django/core/db/dicthelpers.py Normal file
View File

@ -0,0 +1,24 @@
"""
Helper functions for dictfetch* for databases that don't natively support them.
"""
def _dict_helper(desc, row):
"Returns a dictionary for the given cursor.description and result row."
return dict([(desc[col[0]][0], col[1]) for col in enumerate(row)])
def dictfetchone(cursor):
"Returns a row from the cursor as a dict"
row = cursor.fetchone()
if not row:
return None
return _dict_helper(cursor.description, row)
def dictfetchmany(cursor, number):
"Returns a certain number of rows from a cursor as a dict"
desc = cursor.description
return [_dict_helper(desc, row) for row in cursor.fetchmany(number)]
def dictfetchall(cursor):
"Returns all rows from a cursor as a dict"
desc = cursor.description
return [_dict_helper(desc, row) for row in cursor.fetchall()]