The fields objects are responsible for creating their column/table and indexes.
The methods that update the schema are overridden to handle cases specific to
each type of field.
Simplify the API as much as possible, and delegate all the implementation
details to the models `ir.model`, `ir.model.fields`, `ir.model.constraint` and
`ir.model.relation`.
This removal has led to a necessary refactoring:
- make the setup of field attributes extensible;
- make the instantiation of custom fields extensible;
- delegate model and field reflection to `ir.model` and `ir.model.fields`;
- move the implementation of sparse and serialized fields to module `base_sparse_field`;
Before this revision,
using a selection field with as possible keys `0`,
such as `require_payment` in `website_quote`,
resulted to the records field values to be stored
as `NULL` instead of `0` in the database.
This leads to the inability:
- To distinguish records with this selection field not set
or set to `0` (as both are stored as `NULL`)
- To search for records with the field set to `0`
(as they are considered not set)
For instance, while having `website_quote` installed,
search for sales orders with `Payment` set to
`Not mandatory on website quote validation`: It won't
return any result, even if you have some.
opw-697454
The dictionary `_group_by_full` is replaced by a field parameter `group_expand`
that is assigned to the method name. The API of the method has been simplified
as well:
@api.multi
def _read_group_stage_ids(self, domain, read_group_order=None, access_rights_uid=None):
# the stages are given by self.ids (wrong model);
# read_group_order is the order given to read_group() on self;
# return stages.name_get(), {stage.id: stage.fold)
_group_by_full = {'stage_id': _read_group_stage_ids}
is now written:
stage_id = fields.Many2one(..., group_expand='_read_group_stage_ids')
@api.model
def _read_group_stage_ids(self, stages, domain, order):
# stages is a recordset;
# order is the order to use on stages' model;
# return a recordset which is a superset of stages
Christophe Simonis