expanded CompositeField docs - #4
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These functions have also been generalized somewhat for use by composite values.
Introduces InConstraint, a new DB backend operation for more efficient multi-column IN lookups. Now, instead of creating a huge DNF expression, an IN expression is created on backends with support for tuple literals and an EXISTS subquery is used otherwise.
This basically consisted of adding an explicit force_text everywhere the value of the primary key is quoted to make sure it really is quoted properly.
It is now possible to use field names as well as field instances. This is required in order to support deconstruct properly and also makes it easier to implement clone_for_foreignkey.
This appears to greatly confuse SQLite's introspection code which now reports incorrect relationships. Other backends are not affected.
- Made RelatedField VirtualField subclass - Allowed update() of composite fields and ForeignKeys, this was done by adding resolve_concrete_values() method to Field. - By the above, fixed delete SET=None issue - Some minor code cleanup (mainly cleaning what VirtualField does, and removal of duplicate methods from RelatedField - SQLite3 foreign key introspection fix - Made subqueries multicolumn friendly by using Query.add_filter() instead of manually building the filter conditions
Fixed gis compiler.get_default_columns() Fixed some issues in composite fields Fixed m2m add, remove, set and clear operations Added tests for update(combofk=val) More m2m composite support Composite M2M value stays selected in forms Replaced resolve_basic_fields() with concrete_fields cached_property Removed get_enclosed_field() Query.values_list() yields tuples for composite fields Added tests for composite fk attname Cleaned up related field tuple/nontuple value handling
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