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Code Issues 32 Releases Wiki Activity

magic-removal: Added 'core_filters' attribute to Manager -- a dictionary of core filters to apply to every database query made with that manager.

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git-svn-id: http://code.djangoproject.com/svn/django/branches/magic-removal@2140 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Adrian Holovaty 2006-01-27 23:42:45 +00:00
parent a35f7c6e15
commit a6139af645
1 changed files with 6 additions and 0 deletions
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6
django/db/models/manager.py
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@ -26,6 +26,9 @@ class Manager(object):
# Tracks each time a Manager instance is created. Used to retain order. # Tracks each time a Manager instance is created. Used to retain order.
creation_counter = 0 creation_counter = 0
# Dictionary of lookup parameters to apply to every _get_sql_clause().
core_filters = {}
def __init__(self): def __init__(self):
# Increase the creation counter, and save our local copy. # Increase the creation counter, and save our local copy.
self.creation_counter = Manager.creation_counter self.creation_counter = Manager.creation_counter
@ -56,6 +59,9 @@ class Manager(object):
opts = self.klass._meta opts = self.klass._meta
# Apply core filters.
kwargs.update(self.core_filters)
# Construct the fundamental parts of the query: SELECT X FROM Y WHERE Z. # Construct the fundamental parts of the query: SELECT X FROM Y WHERE Z.
select = ["%s.%s" % (backend.quote_name(opts.db_table), backend.quote_name(f.column)) for f in opts.fields] select = ["%s.%s" % (backend.quote_name(opts.db_table), backend.quote_name(f.column)) for f in opts.fields]
tables = (kwargs.get('tables') and [quote_only_if_word(t) for t in kwargs['tables']] or []) tables = (kwargs.get('tables') and [quote_only_if_word(t) for t in kwargs['tables']] or [])