[FIX] Mandatory field not displayed

Replace the api.onchange for an sql constraint.
Mandatory configuration approval fields must be displayed now.

easy_my_coop/__openerp__.py

@@ -4,7 +4,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 {
     "name": "Easy My Coop",
-    "version": "9.1.0.0.1",
+    "version": "9.1.0.0.2",
     "depends": ["base",
                 "sale",
                 "purchase",

easy_my_coop/migrations/9.1.0.0.2/pre-migration.py

@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+
+def migrate(cr, version):
+    if not version:
+        return
+
+    cr.execute("UPDATE res_company "
+                "SET internal_rules_approval_required = FALSE "
+                "WHERE display_internal_rules_approval = FALSE")
+    cr.execute("UPDATE res_company "
+                "SET data_policy_approval_required = FALSE "
+                "WHERE display_data_policy_approval = FALSE")
+    cr.execute("UPDATE res_company "
+                "SET financial_risk_approval_required = FALSE "
+                "WHERE display_financial_risk_approval = FALSE")

easy_my_coop/models/company.py

@@ -95,3 +95,18 @@ class ResCompany(models.Model):
     def onchange_financial_risk_approval_required(self):
         if self.financial_risk_approval_required:
             self.display_financial_risk_rules_approval = True
+
+    _sql_constraints = [(
+        'approval_constraint',
+        """CHECK (((internal_rules_approval_required=FALSE
+            AND display_internal_rules_approval=FALSE)
+            OR display_internal_rules_approval=TRUE)
+        AND ((data_policy_approval_required=FALSE
+            AND display_data_policy_approval=FALSE)
+            OR display_data_policy_approval=TRUE)
+        AND ((financial_risk_approval_required=FALSE
+            AND display_financial_risk_approval=FALSE)
+            OR display_financial_risk_approval=TRUE))
+        """,
+        "Approval can't be mandatory and not displayed."
+    )]