[IMP] estate: linking of business loigic with actions

-linked logic with actions when property either sold or cancelled.
-ensured once any button changed it can't changed again
-applied same for accepting or refusing an offer.
-set selling price and buyer once offer is accepted.
-once offer is accepted other offers can not be marked as accept & vice-versa

estate/models/estate_property.py

@@ -1,5 +1,5 @@
 from dateutil.relativedelta import relativedelta
-from odoo import api,fields, models
+from odoo import api,fields, models, exceptions
 
 #Class of EstateProperty to define fields of database table
 class EstateProperty(models.Model):
@@ -37,7 +37,7 @@ class EstateProperty(models.Model):
         default='new')
     total_area = fields.Float(string='Total Aream(sqm)',compute='_compute_total_area')
     property_type_id = fields.Many2one('estate.property.type', string='Property Type')
-    user_id=fields.Many2one(res.users', string='Salesperson', default=lambda self: self.env.user)
+    user_id=fields.Many2one('res.users', string='Salesperson', default=lambda self: self.env.user)
     partner_id = fields.Many2one('res.partner', string='Buyer',copy=False)
     tag_ids = fields.Many2many('estate.property.tags',string='Tags')
     offer_ids = fields.One2many('estate.property.offer','property_id',string='Offers') #One2Many field
@@ -66,4 +66,20 @@ def onchange_check_garden_status(self):
         else:
             self.garden_area =0
             self.garden_orientation =''
-
+
+    #Function to perform action when property Sold
+    def action_to_sold_property(self):
+        for record in self:
+            if record.state == 'cancelled':
+                raise exceptions.UserError('A cancelled property can not be sold')
+            record.state = 'sold'
+        return True
+
+    #Function to perform action when property Canceled
+    def action_to_cancel_property(self):
+        for record in self:
+            if record.state == 'sold':
+                raise exceptions.UserError('A sold property can not be cancelled')
+            record.state = 'cancelled'
+        return True
+

estate/models/estate_property_offer.py

@@ -1,5 +1,5 @@
 from dateutil.relativedelta import relativedelta
-from odoo import fields,models,api
+from odoo import fields,models,api, exceptions
 
 class EstatePropertyOffer(models.Model):
     _name = "estate.property.offer"
@@ -27,9 +27,33 @@ def _compute_deadline(self):
                 date.date_deadline = fields.Date.today() + relativedelta(days=date.validate)
 
     def _update_validity(self):
-        for days in self:
-            if days.date_deadline:
-                days.validate = (days.date_deadline - fields.Date.today()).days
+        for offer in self:
+            if offer.date_deadline:
+                offer.validate = (offer.date_deadline - fields.Date.today()).days
             else:
-                days.validate = 7
+                offer.validate = 7
+
+    #Function to perform action when offer accpeted
+    def action_accept(self):
+        for record in self:
+            if record.property_id.selling_price and (record.status == 'accepted' or record.status == 'refused'):
+                raise exceptions.UserError("This property has already accepted offer!")
+
+            record.property_id.selling_price = record.price
+            record.property_id.partner_id = record.partner_id
+
+            record.status = 'accepted'
+
+            other_offers = self.search([
+                ('property_id', '=', record.property_id.id),
+                ('id', '!=', record.id),
+                ('status', '=', '')
+            ])
+
+            other_offers.write({'status':'refused'})
+
+    #Function to perform action when offer refused
+    def action_refuse(self):
+        for record in self:
+            record.status = 'refused' 
 

estate/views/estate_property_views.xml

@@ -28,6 +28,10 @@
         <field name="model">estate.property</field>
         <field name="arch" type="xml">
             <form string="Estate Property">
+                <header>
+                    <button string="SOLD" name="action_to_sold_property" type="object" class="oe_highlight"/>
+                    <button string="CANCEL" name="action_to_cancel_property" type="object" class="oe_highlight"/>
+                </header>
                 <sheet>
                         <group>
                             <h1 class="mb32">
@@ -37,6 +41,7 @@
                     <group>
                         <group>
                             <field name="tag_ids" widget="many2many_tags"/>
+                            <field name="state"/>
                             <field name="property_type_id"/>
                             <field name="postcode"/>
                             <field name="date_availability"/>
@@ -68,6 +73,8 @@
                                 <field name="partner_id">Partner</field>
                                 <field name="validate"/>
                                 <field name="date_deadline"/>
+                                <button name="action_accept" string="Accept" type="object" icon="fa-check"/>
+                                <button name="action_refuse" string="Refuse" type="object" icon="fa-times"/>
                                 <field name="status">Status</field> 
                             </list>        
                         </field>