[FIX] crm: correct open lead or opportunity view from calls

When opening a lead/opportunity from the phonecalls view, we did not open the correct view (always the lead).
This will use the type of the crm.lead to determine which view should be used, opw 608493.

addons/crm/crm_lead.py

@@ -165,6 +165,11 @@ class crm_lead(base_stage, format_address, osv.osv):
         return result, fold
 
     def fields_view_get(self, cr, user, view_id=None, view_type='form', context=None, toolbar=False, submenu=False):
+        if view_type == 'form' and context and context.get('opportunity_id'):
+            # TODO: replace by get_formview_action call
+            lead_type = self.browse(cr, user, context['opportunity_id'], context=context).type
+            view_lead_xml_id = 'crm_case_form_view_oppor' if lead_type == 'opportunity' else 'crm_case_form_view_leads'
+            _, view_id = self.pool['ir.model.data'].get_object_reference(cr, user, 'crm', view_lead_xml_id)
         res = super(crm_lead,self).fields_view_get(cr, user, view_id, view_type, context, toolbar=toolbar, submenu=submenu)
         if view_type == 'form':
             res['arch'] = self.fields_view_get_address(cr, user, res['arch'], context=context)

addons/crm/crm_phonecall_view.xml

@@ -110,7 +110,7 @@
                             domain="[('object_id.model', '=', 'crm.phonecall')]"/>
                         <field name="partner_mobile"/>
                         <field name="priority"/>
-                        <field name="opportunity_id" on_change="on_change_opportunity(opportunity_id)"/>
+                        <field name="opportunity_id" on_change="on_change_opportunity(opportunity_id)" context="{'opportunity_id': opportunity_id}"/>
                     </group>
                     <field name="description" placeholder="Description..."/>
                 </sheet>