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Improve domain doc about deferencing to related models

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review800002
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Cédric Krier
2013-04-17 17:46:24 +02:00
parent 459902908e
commit 584e5a4dfa
1 changed files with 13 additions and 3 deletions
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doc/topics/domain.rst
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@@ -26,14 +26,24 @@ by this pattern::
:ref:`pyson <topics-pyson>` statement, that evaluates to a
string.
A field of type :class:`trytond.model.fields.Many2One` can be
dereferenced to related models. This is illustrated by the
following example::
A field of type :class:`trytond.model.fields.Many2One` or
:class:`trytond.model.fields.Many2Many` or
:class:`trytond.model.fields.One2Many` or
:class:`trytond.model.fields.One2One` or
:class:`trytond.model.fields.Reference` can be dereferenced to related
models. This is illustrated by the following example::
domain = [('country.name', '=', 'Japan')]
The number of *dots* in a clause is not limited.
.. warning::
For :class:`trytond.model.fields.Reference`, an extra ending clause is
needed to define the target model to join, for example::
domain = [('origin.party.name', '=', 'John Doe', 'sale.sale')]
..
``operator``
Is an operator out of `Domain Operators`_ or a
:ref:`pyson <topics-pyson>` statement, that evaluates to