Rename 'sale.agreement' model to 'agreement'

Add type field on 'agreement': 'sale' or 'purchase'
Add agreement_id field on supplier invoices

agreement_account/models/agreement.py

@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+# © 2017 Akretion (Alexis de Lattre <alexis.delattre@akretion.com>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+
+from odoo import models, fields
+
+
+class Agreement(models.Model):
+    _name = 'agreement'
+    _description = 'Agreement'
+
+    code = fields.Char(
+        string='Code', required=True, copy=False)
+    name = fields.Char(string='Name', required=True)
+    type = fields.Selection([
+        ('sale', 'Sale'),
+        ('purchase', 'Purchase'),
+        ], string='Type', required=True)
+    partner_id = fields.Many2one(
+        'res.partner', string='Partner', ondelete='restrict', required=True,
+        domain=[('parent_id', '=', False)])
+    company_id = fields.Many2one(
+        'res.company', string='Company',
+        default=lambda self: self.env['res.company']._company_default_get(
+            'agreement'))
+    active = fields.Boolean(string='Active', default=True)
+    signature_date = fields.Date(string='Signature Date')
+    out_invoice_ids = fields.One2many(
+        'account.invoice', 'agreement_id', string='Customer Invoices',
+        readonly=True, domain=[('type', 'in', ('out_invoice', 'out_refund'))])
+    in_invoice_ids = fields.One2many(
+        'account.invoice', 'agreement_id', string='Supplier Invoices',
+        readonly=True, domain=[('type', 'in', ('in_invoice', 'in_refund'))])
+
+    def name_get(self):
+        res = []
+        for agr in self:
+            name = agr.name
+            if agr.code:
+                name = u'[%s] %s' % (agr.code, agr.name)
+            res.append((agr.id, name))
+        return res
+
+    _sql_constraints = [(
+        'code_partner_company_unique',
+        'unique(code, partner_id, company_id)',
+        'This agreement code already exists for this partner!'
+        )]