[IMP] coexist with crm

fixes #283

base_partner_merge/__init__.py

@@ -1,2 +1,3 @@
 from . import base_partner_merge
 from . import validate_email
+from .hooks import post_load_hook

base_partner_merge/__openerp__.py

@@ -17,4 +17,5 @@
         'views/base_partner_merge.xml',
     ],
     'installable': True,
+    'post_load': 'post_load_hook',
 }

base_partner_merge/hooks.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# © 2017 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+import inspect
+from openerp.models import MetaModel
+
+
+def post_load_hook():
+    """We try to be smart here: If the crm module is to be loaded too
+    (or is already loaded), we remove our own models again in order not to
+    clash with the CRM ones: https://github.com/OCA/partner-contact/issues/283
+    """
+    for frame, filename, lineno, funcname, line, index in inspect.stack():
+        # walk up the stack until we're in load_module_graph
+        if 'graph' in frame.f_locals:
+            graph = frame.f_locals['graph']
+            package = frame.f_locals['package']
+            if any(p.name == 'crm' for p in graph):
+                # so crm is installed, then we need to remove your model
+                # from the list of models to be registered
+                # TODO: this could be smarter and only ditch models that need
+                # to be ditched (if crm is in their mro)
+                MetaModel.module_to_models['base_partner_merge'] = []
+                # and in this case, we also don't want to load our xml files
+                package.data['data'].remove('views/base_partner_merge.xml')
+            break