[IMP] website_crm_partner_assign : Reorder partner levels by sequence

This commit attempts to add the option to order partner levels by sequence.

In this commit, the following changes have been made :

1- Add a handle widget to the sequence field to reorder partner levels (in view_partner_grade_tree).
2- Update default order field in "res.partner.grade" to order records by sequance.
3- Update partners order in 'website_crm_partner_assign' controller to keep the same order in website.

Task ID 2241632

closes odoo/odoo#49882

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/website_crm_partner_assign/controllers/main.py

@@ -292,7 +292,7 @@ class WebsiteCrmPartnerAssign(WebsitePartnerPage):
 
         # search partners matching current search parameters
         partner_ids = partner_obj.sudo().search(
-            base_partner_domain, order="grade_sequence DESC, implemented_count DESC, display_name ASC, id ASC",
+            base_partner_domain, order="grade_sequence ASC, implemented_count DESC, display_name ASC, id ASC",
             offset=pager['offset'], limit=self._references_per_page)
         partners = partner_ids.sudo()
 

addons/website_crm_partner_assign/models/res_partner.py

@@ -7,6 +7,7 @@ from odoo.addons.http_routing.models.ir_http import slug
 
 class ResPartnerGrade(models.Model):
     _name = 'res.partner.grade'
+    _order = 'sequence'
     _inherit = ['website.published.mixin']
     _description = 'Partner Grade'
 

addons/website_crm_partner_assign/views/res_partner_views.xml

@@ -46,7 +46,7 @@
         <field name="model">res.partner.grade</field>
         <field name="arch" type="xml">
             <tree string="Partner Level">
-                <field name="sequence" invisible="1"/>
+                <field name="sequence" widget="handle"/>
                 <field name="name"/>
             </tree>
         </field>