add field address for default of the company to equipment in purchase

equipment.py

@@ -9,8 +9,8 @@ class OpticalEquipment(ModelSQL, ModelView):
 
     company = fields.Many2One('company.company', "Company")
     location = fields.Many2One('stock.location', "Location")
-    party = fields.Many2One('party.party', "Party")
-    party_address = fields.Many2One('party.address', "Party Address") 
+    propietary = fields.Many2One('party.party', "Propietary")
+    propietary_address = fields.Many2One('party.address', "Propietary Address", required=True) 
     product = fields.Many2One('product.product', "Product")
     refurbish = fields.Boolean("Refurbish")
     equipment_type = fields.Char('type')

purchase.py

@@ -8,6 +8,8 @@ from trytond.i18n import gettext
 from .exceptions import (
     InvalidNumberPurchases)
 
+from trytond.transaction import Transaction
+
 class Purchase(metaclass=PoolMeta):
     __name__ = 'purchase.purchase'
 
@@ -27,8 +29,6 @@ class Purchase(metaclass=PoolMeta):
         if len(purchases) == 1:
             pool = Pool()
             Equipment = pool.get('optical_equipment.equipment')
-            Line = pool.get('purchase.line')
-            lines = []
             purchase = purchases[0]
             
             for line in purchase.lines:
@@ -36,7 +36,7 @@ class Purchase(metaclass=PoolMeta):
                     equipment = Equipment(
                         company=line.company,
                         equipment_type=line.product.equipment_type,
-                        party_address=line.address_equipment,
+                        propietary_address=line.address_equipment,
                         product=line.product,
                         risk=line.product.risk,
                         use=line.product.use,
@@ -59,14 +59,24 @@ class Purchase(metaclass=PoolMeta):
 class Line(metaclass=PoolMeta):
     __name__ = 'purchase.line'
 
-    address_equipment = fields.Many2One('party.address', "Direccion")
+    address_equipment = fields.Many2One('party.address', "Direccion", required=True)
     serial_equipment = fields.Char("Serial", size=None, required=True)
     refurbish = fields.Boolean("Refurbish")
     
+    def default_address_equipment():
+        pool = Pool()
+        Company = pool.get('company.company')
+        company = Transaction().context.get('company')
+        if company:
+            company = Company(company)
+            return company.party.addresses[0].id
+        
+    """
     @classmethod
     def view_attributes(cls):
         return super(Line, cls).view_attributes() + [
             ('//page[@id="equipment"]', 'states', {
-                    'invisible': ~Eval('line.product.equipment'),
+                    'invisible': Eval('product.equipment'),
                     })]
+    """
     

view/optical_equipment_form.xml

@@ -6,10 +6,10 @@
     <field name="company"/>
     <label name="location"/>
     <field name="location"/>
-    <label name="party"/>
-    <field name="party"/>
-    <label name="party_address"/>
-    <field name="party_address"/>
+    <label name="propietary"/>
+    <field name="propietary"/>
+    <label name="propietary_address"/>
+    <field name="propietary_address"/>
     <label name="product"/>
     <field name="product"/>
     <label name="equipment_type"/>

view/optical_equipment_tree.xml

@@ -4,8 +4,8 @@
 <tree>
     <field name="company"/>
     <field name="location"/>
-    <field name="party"/>
-    <field name="party_address"/>
+    <field name="propietary"/>
+    <field name="propietary_address"/>
     <field name="product"/>
     <field name="equipment_type"/>
     <field name="use"/>

view/purchase_line_form.xml

@@ -4,8 +4,12 @@
     <xpath
 	expr="/form/notebook/page[@id='notes']" position="before">
 	<page string="Equipment" id="equipment">
+	    <label name="address_equipment"/>
+	    <field name="address_equipment"/>
+	    <newline/>
 	    <label name="serial_equipment"/>
 	    <field name="serial_equipment"/>
+	    <newline/>
 	    <label name="refurbish"/>
 	    <field name="refurbish"/>
 	</page>