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# -*- coding: utf-8 -*-
###############################################################################
#
# Cybrosys Technologies Pvt. Ltd.
#
# Copyright (C) 2024-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
# Author: Nihala KP (odoo@cybrosys.com)
#
# You can modify it under the terms of the GNU AFFERO
# GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
#
# You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
# (AGPL v3) along with this program.
# If not, see <http://www.gnu.org/licenses/>.
#
###############################################################################
import xml.etree.ElementTree as ET
from odoo import api, fields, models, _
class DynamicFields(models.Model):
"""Creates dynamic fields model to create and manage new fields"""
_name = 'dynamic.fields'
_rec_name = 'field_description'
_description = 'Custom Dynamic Fields'
_inherit = 'ir.model.fields'
@api.model
def get_possible_field_types(self):
"""Return all available field types other than 'o2m' and
'reference' fields."""
field_list = sorted((key, key) for key in fields.MetaField.by_type)
field_list.remove(('one2many', 'one2many'))
field_list.remove(('reference', 'reference'))
return field_list
@api.onchange('model_id')
def _onchange_model_id(self):
"""Pass selected model into model field to filter position fields,
set values to form_view_ids to filter form view ids and pass
values to tree_view_ids to filter tree view ids"""
for rec in self:
rec.model = rec.model_id.model
rec.write({'form_view_ids': [(6, 0, rec.model_id.view_ids.filtered(
lambda view: view.type == 'form' and view.mode == 'primary')
.ids)]})
rec.write({'tree_view_ids':
[(6, 0, self.model_id.view_ids.filtered(
lambda
view: view.type == 'list' and view.mode == 'primary')
.ids)]})
model = fields.Char(string='Model', help="To store selected model name")
position_field_id = fields.Many2one(comodel_name='ir.model.fields',
string='Field Name',
required=True, ondelete='cascade',
help="Position field for new field",
domain=lambda
self: "[('model', '=', model)]")
position = fields.Selection(selection=[('before', 'Before'),
('after', 'After')],
string='Position',
required=True, help="Position of new field")
model_id = fields.Many2one(comodel_name='ir.model', string='Model',
required=True,
index=True,
help="The model this field belongs to")
ref_model_id = fields.Many2one(comodel_name='ir.model', string='Rezlational'
'Model',
index=True, help="Relational model"
" for relational fields")
selection_field = fields.Char(string="Selection Options",
help="The model this field belongs to")
field_type = fields.Selection(selection='get_possible_field_types',
string='Field Type', required=True,
help="Data type of new field")
tree_field_ids = fields.Many2many('ir.model.fields',
'tree_field_ids',
compute='_compute_tree_field_ids')
ttype = fields.Selection(string="Field Type", related='field_type',
help="Field type of field")
widget_id = fields.Many2one(comodel_name='dynamic.field.widgets',
string='Widget', help="Widgets for field" ,
domain=lambda self: "[('data_type', '=', "
"field_type)]")
groups = fields.Many2many('res.groups',
'dynamic_fields_group_rel',
'dynamic_field_id',
'dynamic_group_id',
help="Groups of field")
extra_features = fields.Boolean(string="Show Extra Properties",
help="Enable to add extra features")
status = fields.Selection(selection=[('draft', 'Draft'),
('form', 'Field Created')],
string='Status',
index=True, readonly=True, tracking=True,
copy=False, default='draft',
help='State for record')
form_view_ids = fields.Many2many(comodel_name='ir.ui.view',
string="Form View IDs",
help="Stores form view ids")
tree_view_ids = fields.Many2many(comodel_name='ir.ui.view',
relation="rel_tree_view",
string="Tree View IDs",
help="Stores tree view ids")
form_view_id = fields.Many2one(comodel_name='ir.ui.view',
string="Form View ID",
required=True,
help="Form view id of the model",
domain=lambda self: "[('id', 'in', "
"form_view_ids)]")
form_view_inherit_id = fields.Char(string="Form View Inherit Id",
related='form_view_id.xml_id',
help="Form view inherit id(adds"
" by selecting form view id)")
add_field_in_tree = fields.Boolean(string="Add Field to the Tree View",
help="Enable to add field in tree view")
tree_view_id = fields.Many2one(comodel_name='ir.ui.view',
string="Tree View ID",
help="Tree view id of the model",
domain=lambda self: "[('id', 'in', "
"tree_view_ids)]")
tree_view_inherit_id = fields.Char(string="External Id",
related='tree_view_id.xml_id',
help="Tree view inherit id(adds"
" by selecting tree view id)")
tree_field_id = fields.Many2one('ir.model.fields',
string='Tree Field',
help='Position for new field',
domain="[('id', 'in', tree_field_ids)]")
tree_field_position = fields.Selection(selection=[('before', 'Before'),
('after', 'After')],
string='Tree Position',
help="Position of new field in "
"tree view")
is_visible_in_tree_view = fields.Boolean(string='Visible In List View',
help="Enable to make the field "
"visible in selected list "
"view of the model")
created_tree_view_id = fields.Many2one('ir.ui.view',
string='Created Tree view',
help='This is the currently '
'created tree view')
created_form_view_id = fields.Many2one('ir.ui.view',
string='Created form view',
help='Created form view id for the '
'dynamic field')
@api.depends('tree_view_id')
def _compute_tree_field_ids(self):
"""Compute function to find the tree view fields of selected tree view
in field tree_view_id"""
for rec in self:
if rec.tree_view_id:
field_list = []
if rec.tree_view_id.xml_id:
fields = ET.fromstring(self.env.ref(
rec.tree_view_id.xml_id).arch).findall(".//field")
for field in fields:
field_list.append(field.get('name'))
inherit_id = rec.tree_view_id.inherit_id if (
rec.tree_view_id.inherit_id) else False
while inherit_id:
if inherit_id.xml_id:
fields = ET.fromstring(self.env.ref(
inherit_id.xml_id).arch).findall(".//field")
for field in fields:
field_list.append(field.get('name'))
inherit_id = inherit_id.inherit_id if (
inherit_id.inherit_id) else False
self.tree_field_ids = self.env['ir.model.fields'].search(
[('model_id', '=', self.model_id.id),
('name', 'in', field_list)])
else:
rec.tree_field_ids = False
@api.onchange('add_field_in_tree')
def _onchange_add_field_in_tree(self):
"""Function to clear values of tree_view_id and tree_field_id"""
if not self.add_field_in_tree:
self.tree_view_id = False
self.tree_field_id = False
def action_create_dynamic_field(self):
"""Function to create dynamic field to a particular model, data type,
properties and etc"""
self.write({'status': 'form'})
if self.field_type == 'monetary' and not self.env[
'ir.model.fields'].sudo().search([('model', '=', self.model_id.id),
('name', '=', 'currency_id')]):
self.env['ir.model.fields'].sudo().create({
'name': 'x_currency_id',
'field_description': 'Currency',
'model_id': self.model_id.id,
'ttype': 'many2one',
'relation': 'res.currency',
'is_dynamic_field': True
})
self.env['ir.model.fields'].sudo().create({
'name': self.name,
'field_description': self.field_description,
'model_id': self.model_id.id,
'ttype': self.field_type,
'relation': self.ref_model_id.model,
'required': self.required,
'index': self.index,
'store': self.store,
'help': self.help,
'readonly': self.readonly,
'selection': self.selection_field,
'copied': self.copied,
'is_dynamic_field': True
})
inherit_form_view_name = str(
self.form_view_id.name) + ".inherit.dynamic.custom." + str(
self.field_description) + ".field"
xml_id = self.form_view_id.xml_id
inherit_id = self.env.ref(xml_id)
arch_base = _('<?xml version="1.0"?>'
'<data>'
'<field name="%s" position="%s">'
'<field name="%s"/>'
'</field>'
'</data>') % (self.position_field_id.name,
self.position, self.name)
if self.widget_id:
arch_base = _('<?xml version="1.0"?>'
'<data>'
'<field name="%s" position="%s">'
'<field name="%s" widget="%s"/>'
'</field>'
'</data>') % (self.position_field_id.name,
self.position, self.name,
self.widget_id.name)
self.created_form_view_id = self.env['ir.ui.view'].sudo().create({
'name': inherit_form_view_name,
'type': 'form',
'model': self.model_id.model,
'mode': 'extension',
'inherit_id': inherit_id.id,
'arch_base': arch_base,
'active': True
})
self.action_create_to_tree_view()
return {
'type': 'ir.actions.client',
'tag': 'reload',
}
def action_create_to_tree_view(self):
"""Function to add field to tree view"""
if self.add_field_in_tree:
optional = "show" if self.is_visible_in_tree_view else "hide"
tree_view_arch_base = (_(f'''
<data>
<xpath expr="//field[@name='{self.tree_field_id.name}']" position="{self.tree_field_position}">
<field name="{self.name}" optional="{optional}"/>
</xpath>
</data>'''))
inherit_tree_view_name = str(
self.tree_view_id.name) + ".inherit.dynamic.custom" + \
str(self.field_description) + ".field"
self.created_tree_view_id = self.env['ir.ui.view'].sudo().create(
{
'name': inherit_tree_view_name,
'type': 'list',
'model': self.model_id.model,
'mode': 'extension',
'inherit_id': self.tree_view_id.id,
'arch_base': tree_view_arch_base,
'active': True
})
return {
'type': 'ir.actions.client',
'tag': 'reload',
}
def unlink(self):
"""Custom unlink method to handle linked records."""
# Deactivate related form and tree views for the dynamic field
if self.created_form_view_id:
self.created_form_view_id.active = False
if self.created_tree_view_id:
self.created_tree_view_id.active = False
model = self.env[self.model_id.model]
if self.name in model._fields:
model._pop_field(self.name)
return super(DynamicFields, self).unlink()