ADD 12.0 module company_code (#77)

* ADD module company_code

* FIX doc

* FIX doc

* Update company_code/readme/USAGE.rst

Co-Authored-By: bealdav <david.beal@akretion.com>

company_code/models/__init__.py

@@ -0,0 +1 @@
+from . import company

company_code/models/company.py

@@ -0,0 +1,32 @@
+# Copyright 2019 David BEAL @ Akretion
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import models, fields
+
+
+class ResCompany(models.Model):
+    _inherit = 'res.company'
+
+    code = fields.Char(
+        required=True, default='CODE',
+        help="Field used in object name as suffix")
+
+    def _add_company_code(self, super_object):
+        ""
+        """ Add the `code` field to your _rec_name. Use it like that:
+
+            def name_get(self):
+                return self.env['res.company']._add_company_code(super())
+        """
+        records = super_object.__self__
+        if records and records[0]._name == 'res.company':
+            codes = {x.id: x.code for x in records}
+        else:
+            codes = {x.id: x['company_id']['code'] for x in records
+                     if getattr(x, 'company_id')}
+        res = [(elm[0], '%s (%s)' % (elm[1], codes[elm[0]] or ''))
+               for elm in super_object.name_get()]
+        return res
+
+    def name_get(self):
+        return self.env['res.company']._add_company_code(super())