onchange product loan old membrane type

netforce_clinic/layouts/clinic_dialyzer_list.xml

@@ -5,8 +5,9 @@
     <field name="name"/>
     <field name="patient_id"/>
     <field name="department_id"/>
+    <field name="product_id"/>
+    <field name="membrane_type"/>
     <field name="use_time"/>
     <field name="max_use_time"/>
-    <field name="exp_date"/>
     <field name="state"/>
 </list>

netforce_clinic/layouts/clinic_hd_case_dlz_form.xml

@@ -1,6 +1,6 @@
 <form model="clinic.hd.case.popup.dlz">
     <field name="hd_case_id" invisible="1"/>
-    <field name="product_id" domain="[['categ_id.name','=','Dialyzer']]" span="6"/>
+    <field name="product_id" onchange="onchange_product" domain="[['categ_id.name','=','Dialyzer']]" span="6"/>
     <field name="dialyzer_type" required="1" span="6"/>
     <field name="max_use_time" span="6" required="1"/>
     <field name="membrane_type" required="1" span="6"/>

netforce_clinic/models/dialyzer.py

@@ -23,7 +23,7 @@ class Dialyzer(Model):
         "state": fields.Selection([("new","New"),("active","Active"),("drop","Drop"),("expire","Expire"),('cancelled','Cancelled')],"Status"),
         "comments": fields.One2Many("message","related_id","Comments"),
         "company_id": fields.Many2One("company","Company"),
-        'product_id': fields.Many2One("product", "Product",required=True),
+        'product_id': fields.Many2One("product", "Product",required=True,search=True),
         "pickings": fields.One2Many("stock.picking","related_id","Pickings"),
         "patient_id": fields.Many2One("clinic.patient","Patient",search=True),
         "visit_id": fields.Many2One("clinic.visit","Visit",search=True),

netforce_clinic/models/hd_case_popup_dlz.py

@@ -35,8 +35,14 @@ class HDCasePopupDlz(Model):
             context['pop_id']=obj.id
             return hd_case.new_dialyzer(context=context)
 
-    def onchnage_product(self,context={}):
+    def onchange_product(self,context={}):
         data=context['data']
+        product_id=data['product_id']
+        for dlz in get_model("clinic.dialyzer").search_browse([]):
+            prod=dlz.product_id
+            if prod.id==product_id:
+                data['membrane_type']=dlz.membrane_type
+                break
         return data
 
 HDCasePopupDlz.register()