:tocdepth: 3

:py:mod:`gws.plugin.model_value.expression`
===========================================

.. py:module:: gws.plugin.model_value.expression

.. autoapi-nested-parse::

   Expression value.

   This value is computed by evaluating a python expression.

   The following variables are provided to the expression:

   - ``app`` - the Application object
   - ``user`` - current user
   - ``feature`` - feature this value is evaluated for
   - ``mc`` - ``ModelContext`` object

   The following modules are available:

   - ``date`` - `gws.lib.datetimex` module



**Source code:** :source:`gws.plugin.model_value.expression<gws/plugin/model_value/expression/__init__.py>`



Package Contents
----------------



.. py:class:: Config


   Bases: :py:obj:`gws.base.model.value.Config`

   Expression-based value. (added in 8.1)

   .. py:attribute:: text
      :type:  str


.. py:class:: Object


   Bases: :py:obj:`gws.base.model.value.Object`

   .. py:attribute:: text
      :type:  str

   .. py:method:: compute(field, feature, mc)

   .. py:method:: configure()