fix: al crear segunda tarea al mismo seguimiento se pierden los contact_methods de la anterior

__init__.py

@@ -28,6 +28,7 @@ def register():
         prospect_trace.MakeCallAskTask,
         prospect.ReassignProspectByOperatorStart,
         prospect.ReassignProspectByProspectStart,
+        call.PendingTask_ContactMethod,
         module='sale_opportunity_management', type_='model')
     Pool.register(
         prospect_trace.ScheduleCall,

call.py

@@ -67,8 +67,10 @@ class PendingTask(ModelSQL, ModelView):
         'sale.prospect_trace', 'Prospect trace',
         required=True, readonly=True)
 
-    contacts = fields.One2Many(
+    contacts = fields.Many2Many(
-        'prospect.contact_method', 'task', 'Contacts', readonly=True)
+        'sale.pendingtask_contactmethod',
+        'pending_task_id', 'contact_method_id',
+        'Contact Methods')
 
     @classmethod
     def __setup__(cls):
@@ -89,3 +91,12 @@ class PendingTask(ModelSQL, ModelView):
     @classmethod
     def default_state(cls):
         return 'pending'
+
+
+class PendingTask_ContactMethod(ModelSQL):
+    'Relacion muchos a muchos entre tareas pendientes y mecanismos de contacto'
+    __name__ = "sale.pendingtask_contactmethod"
+
+    pending_task_id = fields.Many2One('sale.pending_task', 'Pending task id')
+    contact_method_id = fields.Many2One(
+        'prospect.contact_method', 'Contact method id')

prospect.py

@@ -79,7 +79,11 @@ class ContactMethod(ModelSQL, ModelView):
     prospect = fields.Many2One('sale.prospect', 'Prospect', required=True)
     prospect_trace = fields.Many2One(
         'sale.prospect_trace', 'Prospect Trace', required=False)
-    task = fields.Many2One('sale.pending_task', 'task ', required=False)
+
+    tasks = fields.Many2Many(
+        'sale.pendingtask_contactmethod',
+        'contact_method_id', 'pending_task_id',
+        'Contact Methods')
 
     @classmethod
     def default_contact_type(cls):

tests/scenario_sale_opportunity_management.rst

@@ -287,18 +287,42 @@ Hacer llamada y programar tarea::
     >>> make_call.execute('schedule_task')
 
     >>> Task = Model.get('sale.pending_task')
-    >>> task, = Task.find([('description', '=', 'I have to send a mail to prospect offering him this services...')])
+    >>> task1, = Task.find([('description', '=', 'I have to send a mail to prospect offering him this services...')])
-    >>> task
-    proteus.Model.get('sale.pending_task')(1)
 
-    >>> task.state
+    >>> task1
+    proteus.Model.get('sale.pending_task')(1)
+    >>> task1.state
     'pending'
 
-    >>> task.click('close_task') 
+    >>> task1.click('close_task')
-    >>> task.state
+ 
+    >>> task1.state
     'done'
-    >>> task.contacts[0].value == prospect_trace.prospect_contacts[0].value 
+    >>> task1.contacts[0].value
-    True
+    '12345678910'
+
+Programar segunda tarea al mismo seguimiento::
+    >>> make_call = Wizard('sale.prospect_trace.make_call', [prospect_trace])
+    >>> make_call.form.description = 'Prospect told me to send him an SMS'
+    >>> make_call.form.interest = '3'
+    >>> make_call.form.schedule_call = 'no'
+    >>> make_call.form.schedule_task = 'yes'
+    >>> make_call.execute('make_call')
+    >>> make_call.form.task_description = 'I have to send a SMS to prospect offering him this services...'
+    >>> make_call.execute('schedule_task')
+
+    >>> task1.save()
+    >>> Task = Model.get('sale.pending_task')
+    >>> task2, = Task.find([('description', '=', 'I have to send a SMS to prospect offering him this services...')])
+    >>> task2
+    proteus.Model.get('sale.pending_task')(2)
+
+    >>> task2.state
+    'pending'
+    >>> task2.contacts[0].value 
+    '12345678910'
+    >>> task1.contacts[0].value
+    '12345678910'
 
 Hacer llamada y cerrar venta (Seguimiento de prospecto)::
     >>> make_call = Wizard('sale.prospect_trace.make_call', [prospect_trace])