entry of serial and button registred

__init__.py

@@ -14,6 +14,7 @@ def register():
         sale.SaleLine,
         sale.CreateSubscriptionStart,
         equipment.OpticalEquipment,
+        equipment.EquipmentMaintenance,
         configuration_equipment.Configuration,
         maintenance.Maintenance,
         maintenance.MaintenanceActivity,

equipment.py

@@ -87,6 +87,9 @@ class OpticalEquipment(Workflow, ModelSQL, ModelView):
                         'equipment','subscription', "Subscriptions",
                         states={'readonly': True}
                                             )
+    maintenance_history = fields.Many2Many('optical_equipment.maintenance-optical_equipment.equipment', 'equipment', 'maintenance', "Maintenances",
+                                           states={'readonly': True}
+                                           )
     software_version = fields.Char("Software version", size=None,
                                    states=_states,)
 
@@ -194,4 +197,21 @@ class OpticalEquipment(Workflow, ModelSQL, ModelView):
     @ModelView.button
     @Workflow.transition('registred')
     def registred(cls, equipments):
+        #raise UserError(str(equipments[0].serial))
+        for i in equipments:
+            if i.serial == None:
+                raise UserError(str(i.serial))
+            else:
                 cls.set_code(equipments)
+            
+
+
+class EquipmentMaintenance(ModelSQL):
+    'Optical Equipment - Equipment - Maintenance'
+    __name__='optical_equipment.maintenance-optical_equipment.equipment'
+
+    maintenance = fields.Many2One('optical_equipment.maintenance', 'Maintenances', select=True)
+
+    equipment = fields.Many2One('optical_equipment.equipment', 'Equipment', select=True)
+
+    

purchase.py

@@ -60,7 +60,8 @@ class Purchase(metaclass=PoolMeta):
                             refurbish=line.refurbish,
                             serial=None if line.quantity > 1 else line.serial_equipment,
                             health_register=line.health_register,
-                            software_version=line.software_version)
+                            software_version=line.software_version,
+                            maintenance_frequency="none")
                         equipment.save()
                 else:
                     continue

view/optical_equipment_form.xml

@@ -1,15 +1,18 @@
 <?xml version="1.0"?> 
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
      this repository contains the full copyright notices and license terms. -->
-<form>
+<form col="6">
     <label name="code"/>
     <field name="code"/>
     <label name="company"/>
     <field name="company"/>
+    <newline/>
     <label name="propietary"/>
     <field name="propietary"/>
     <label name="propietary_address"/>
     <field name="propietary_address"/>
+    <notebook colspan="6">
+	<page string="General" id="general_equipment">
 	    <label name="location"/>
 	    <field name="location"/>
 	    <label name="product"/>
@@ -46,10 +49,13 @@
 	    <field name="health_register"/>
 	    <label name="origin_country"/>
 	    <field name="origin_country"/>
-    <notebook>
+	</page>
 	<page string="Subscriptions" id="subscriptions_equipment">
 	    <field name="subscription_history"/>
 	</page>
+	<page string="Maintenances" id="maintenances_equipment">
+	    <field name="maintenance_history"/>
+	</page>
     </notebook>
     <group col="2" colspan="2" id="button">
 	<button name="draft"/>

view/optical_equipment_serial_tree.xml

@@ -11,4 +11,6 @@
     <field name="product"/>
     <field name="equipment_type"/>
     <field name="serial" expand="1"/>
+    <button name="registred"/>
 </tree>
+