[IMP] put on the waiting list

Add the possibility to put a subscription request on the waiting list.
add a waiting state the action to update the state and the related
button on the form

easy_my_coop/models/coop.py

@@ -125,6 +125,7 @@ class subscription_request(models.Model):
     state = fields.Selection([('draft','Draft'),
                               ('block','Blocked'),
                               ('done','Done'),
+                              ('waiting','Waiting'),
                               ('transfer','Transfer'),
                               ('cancelled','Cancelled'),
                               ('paid','paid')],
@@ -359,6 +360,10 @@ class subscription_request(models.Model):
     def cancel_subscription_request(self):
         self.write({'state':'cancelled'})
 
+    @api.one    
+    def put_on_waiting_list(self):
+        self.write({'state':'waiting'})
+            
 class share_line(models.Model):
     _name='share.line'
     

easy_my_coop/view/subscription_request_view.xml

@@ -34,7 +34,8 @@
             <field name="arch" type="xml">
         		<form string="Subscription Requests">
        				<header>
-       					<button string="Validate" type="object" name="validate_subscription_request" attrs="{'invisible':['|',('state','!=','draft'),('validated','=',False)]}"/>
+       					<button string="Validate" type="object" name="validate_subscription_request" attrs="{'invisible':['|',('state','not in',['draft','waiting']),('validated','=',False)]}"/>
+       					<button string="Waiting list" type="object" name="put_on_waiting_list" states="draft"/>
        					<button string="Cancel" type="object" name="cancel_subscription_request" states="draft,done,block" groups="easy_my_coop.group_energiris_manager"/>
        					<field name="state" widget="statusbar" statusbar_visible="draft,cancelled,done,failed"/>
        				</header>