[ADD] mrp_project

================
MRP Project Link
================

This module links projects and tasks to *manufacturing orders* (MO) and
*work orders* (WO).

Usage
=====

In a manufacturing order (MO), you can select a project to be attached to it.
If none is selected, a project is automatically created when the MO is
confirmed.

When the MO starts, a task is created and assigned to the order.

mrp_project/models/project_task_work.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# (c) 2015 Pedro M. Baeza - Serv. Tecnol. Avanzados
+# License AGPL-3 - See http://www.gnu.org/licenses/agpl-3.0.html
+
+from openerp import models, fields, api
+from datetime import datetime
+
+
+class ProjectTaskWork(models.Model):
+    _inherit = 'project.task.work'
+
+    workorder = fields.Many2one(
+        comodel_name="mrp.production.workcenter.line",
+        related="task_id.workorder", store=True, string="Work order")
+
+    @api.multi
+    def button_end_work(self):
+        end_date = datetime.now()
+        for work in self:
+            date = fields.Datetime.from_string(work.date)
+            work.hours = (end_date - date).total_seconds() / 3600
+        return True
+
+    @api.multi
+    def onchange_task_id(self, task_id):
+        res = {}
+        if task_id:
+            task = self.env['project.task'].browse(task_id)
+            res['value'] = {'user_id': task.user_id.id}
+        return res