Add a new state to monthly statements for manual validation.

--HG-- branch : 11.0

models/account_monthly_statement.py

@@ -114,7 +114,11 @@ class MonthlyStatement(models.Model):
     )
 
     state = fields.Selection(
-        selection=[("in_progress", "In Progress"), ("done", "Done")],
+        selection=[
+            ("draft", "Draft"),
+            ("in_progress", "In Progress"),
+            ("done", "Done"),
+        ],
         string="State",
         readonly=True,
         required=True,
@@ -129,6 +133,12 @@ class MonthlyStatement(models.Model):
         ),
     )
 
+    @api.multi
+    def validate(self):
+        self.write({"state": "in_progress"})
+        for statement in self:
+            statement.register_process_job()
+
     @api.multi
     def open_lines(self):
         """View display action that opens lines through breadcrumbs."""