fix contract constraint

models/mucs_contract.py

@@ -22,7 +22,11 @@ class Contract(models.Model):
     # SQL Constraints
     # ------------------------------------------------------
     _sql_constraints = [
-        ("number_unique", "unique (number)", "Ce contrat existe déjà")
+        (
+            "contract_unique",
+            "unique (code, date_start, date_end, partner_id, is_portabilite)",
+            "Ce contrat existe déjà",
+        )
     ]
     # ------------------------------------------------------
     # Default methods

views/mucs_contract.xml

@@ -65,7 +65,7 @@
         <field name="model">mucs.contract</field>
         <field name="arch" type="xml">
             <list>
-                <field name="partner_id" />
+                <field name="partner_id" widget="many2one"/>
                 <field name="code" />
                 <field name="is_portabilite" />
                 <field name="member_count" />