Merge commit '94a10946' into geoa-wkbelement

Conflicts:
	doc/db_geoa.rst

doc/db_geoa.rst

@@ -37,7 +37,9 @@ Creating simple model
 ---------------------
 
 GeoAlchemy comes with a `Geometry`_ field that is carefully divorced from the
-`Shapely`_ library. Flask-Admin will use this field so that there are no changes necessary to other code. ``ModelView`` should be imported from ``geoa`` rather than the one imported from ``sqla``::
+`Shapely`_ library. Flask-Admin will use this field so that there are no 
+changes necessary to other code. ``ModelView`` should be imported from 
+``geoa`` rather than the one imported from ``sqla``::
 
     from geoalchemy2 import Geometry
     from flask.ext.admin.contrib.geoa import ModelView

flask_admin/contrib/sqla/view.py

@@ -586,6 +586,14 @@ class ModelView(BaseModelView):
         """
         return isinstance(filter, filters.BaseSQLAFilter)
 
+    def handle_filter(self, filter):
+        column = filter.column
+
+        if self._need_join(column.table):
+            self._filter_joins[column.table.name] = [column.table]
+
+        return filter
+
     def scaffold_form(self):
         """
             Create form from the model.

flask_admin/model/base.py

@@ -773,6 +773,15 @@ class BaseModelView(BaseView, ActionsMixin):
         """
         return isinstance(filter, filters.BaseFilter)
 
+    def handle_filter(self, filter):
+        """
+            Postprocess (add joins, etc) for a filter.
+
+            :param filter:
+                Filter object to postprocess
+        """
+        return filter
+
     def get_filters(self):
         """
             Return a list of filter objects.
@@ -785,7 +794,7 @@ class BaseModelView(BaseView, ActionsMixin):
 
             for n in self.column_filters:
                 if self.is_valid_filter(n):
-                    collection.append(n)
+                    collection.append(self.handle_filter(n))
                 else:
                     flt = self.scaffold_filters(n)
                     if flt: