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Added local 'qn' variable for backend.quote_name in django.db.models.query.delete_objects

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@3327 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty 2006-07-11 04:11:40 +00:00
parent cfcd4a5875
commit 33f47ae30a
1 changed files with 8 additions and 11 deletions
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19
django/db/models/query.py
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@ -909,6 +909,7 @@ def lookup_inner(path, lookup_type, value, opts, table, column):
def delete_objects(seen_objs):
"Iterate through a list of seen classes, and remove any instances that are referred to"
qn = backend.quote_name
ordered_classes = seen_objs.keys()
ordered_classes.reverse()
@ -926,24 +927,21 @@ def delete_objects(seen_objs):
for related in cls._meta.get_all_related_many_to_many_objects():
for offset in range(0, len(pk_list), GET_ITERATOR_CHUNK_SIZE):
cursor.execute("DELETE FROM %s WHERE %s IN (%s)" % \
(backend.quote_name(related.field.m2m_db_table()),
backend.quote_name(related.field.m2m_reverse_name()),
(qn(related.field.m2m_db_table()),
qn(related.field.m2m_reverse_name()),
','.join(['%s' for pk in pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE]])),
pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE])
for f in cls._meta.many_to_many:
for offset in range(0, len(pk_list), GET_ITERATOR_CHUNK_SIZE):
cursor.execute("DELETE FROM %s WHERE %s IN (%s)" % \
(backend.quote_name(f.m2m_db_table()),
backend.quote_name(f.m2m_column_name()),
','.join(['%s' for pk in pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE]])),
(qn(f.m2m_db_table()), qn(f.m2m_column_name()),
','.join(['%s' for pk in pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE]])),
pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE])
for field in cls._meta.fields:
if field.rel and field.null and field.rel.to in seen_objs:
for offset in range(0, len(pk_list), GET_ITERATOR_CHUNK_SIZE):
cursor.execute("UPDATE %s SET %s=NULL WHERE %s IN (%s)" % \
(backend.quote_name(cls._meta.db_table),
backend.quote_name(field.column),
backend.quote_name(cls._meta.pk.column),
(qn(cls._meta.db_table), qn(field.column), qn(cls._meta.pk.column),
','.join(['%s' for pk in pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE]])),
pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE])
@ -953,9 +951,8 @@ def delete_objects(seen_objs):
pk_list = [pk for pk,instance in seen_objs[cls]]
for offset in range(0, len(pk_list), GET_ITERATOR_CHUNK_SIZE):
cursor.execute("DELETE FROM %s WHERE %s IN (%s)" % \
(backend.quote_name(cls._meta.db_table),
backend.quote_name(cls._meta.pk.column),
','.join(['%s' for pk in pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE]])),
(qn(cls._meta.db_table), qn(cls._meta.pk.column),
','.join(['%s' for pk in pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE]])),
pk_list[offset:offset+GET_ITERATOR_CHUNK_SIZE])
# Last cleanup; set NULLs where there once was a reference to the object,