Package pyperry :: Module association :: Class Has

Class Has

 object --+    
          |    
Association --+
              |
             Has

Known Subclasses:

Builds the association scope for a has association. This is the superclass for HasOne and HasMany associations. The only difference between a has one and has many relation, is that .first() is called on the has one association's scope but not on the has many association's scope. See the Association class for more details on how associations work.

Instance Methods

get_foreign_key(self)

source code

set_foreign_key(self, value)

source code

polymorphic(self)

source code

polymorphic_type(self)

source code

scope(self, obj_or_list)
Returns a scope on the source class containing this association

source code

Inherited from Association: __call__, __init__, collection, eager_loadable, finder_options, primary_key, source_klass, type

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties
	foreign_key
Inherited from `object`: `__class__`

Method Details

Returns a scope on the source class containing this association

Builds conditions on top of the base_scope generated from any finder options set with the association:

   has_many('widgets', klass=Widget, foreign_key='widget_id')
   has_many('comments', as_='parent')

In addition to any finder options included with the association options the following will be added:

   where('widget_id = %s ' % target['id'])

Or for the polymorphic :comments association:

   where('parent_id = %s AND parent_type = %s' % (target['id'],
   target.class))

Overrides: Association.scope

Property Details

foreign_key

Get Method:: get_foreign_key(self)
Set Method:: set_foreign_key(self, value)