[MIG] web_domain_field: Migration to 15.0

web_domain_field/readme/CONTRIBUTORS.rst

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+* Laurent Mignon <laurent.mignon@acsone.eu>
+* Denis Roussel <denis.roussel@acsone.eu>
+* Raf Ven <raf.ven@dynapps.be>

web_domain_field/readme/DESCRIPTION.rst

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+When you define a view you can specify on the relational fields a domain
+attribute. This attribute is evaluated as filter to apply when displaying
+existing records for selection.

web_domain_field/readme/USAGE.rst

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+When you define a view you can specify on the relational fields a domain
+attribute. This attribute is evaluated as filter to apply when displaying
+existing records for selection.
+
+.. code-block:: xml
+
+   <field name="product_id" domain="[('type','=','product')]"/>
+
+The value provided for the domain attribute must be a string representing a
+valid Odoo domain. This string is evaluated on the client side in a
+restricted context where we can reference as right operand the values of
+fields present into the form and a limited set of functions.
+
+In this context it's hard to build complex domain and we are facing to some
+limitations as:
+
+ * The syntax to include in your domain a criteria involving values from a
+   x2many field is complex.
+ * The right side of domain in case of x2many can involve huge amount of ids
+   (performance problem).
+ * Domains computed by an onchange on an other field are not recomputed when
+   you modify the form and don't modify the field triggering the onchange.
+ * It's not possible to extend an existing domain. You must completely redefine
+   the domain in your specialized addon
+ * etc...
+
+In order to mitigate these limitations this new addon allows you to use the
+value of a field as domain of an other field in the xml definition of your
+view.
+
+.. code-block:: xml
+
+   <field name="product_id_domain" invisible="1"/>
+   <field name="product_id" domain="product_id_domain"/>
+
+The field used as domain must provide the domain as a JSON encoded string.
+
+.. code-block:: python
+
+   product_id_domain = fields.Char(
+       compute="_compute_product_id_domain",
+       readonly=True,
+       store=False,
+   )
+
+   @api.depends('name')
+   def _compute_product_id_domain(self):
+       for rec in self:
+           rec.product_id_domain = json.dumps(
+               [('type', '=', 'product'), ('name', 'like', rec.name)]
+           )