Merge branch 'geo' of git://github.com/blackbrrr/mongoengine into v0.4

Conflicts:
	mongoengine/fields.py
	mongoengine/queryset.py

mongoengine/fields.py

@@ -13,7 +13,7 @@ __all__ = ['StringField', 'IntField', 'FloatField', 'BooleanField',
            'DateTimeField', 'EmbeddedDocumentField', 'ListField', 'DictField',
            'ObjectIdField', 'ReferenceField', 'ValidationError',
            'DecimalField', 'URLField', 'GenericReferenceField',
-           'BinaryField', 'SortedListField', 'EmailField', 'GeoLocationField']
+           'BinaryField', 'SortedListField', 'EmailField', 'GeoPointField']
 
 RECURSIVE_REFERENCE_CONSTANT = 'self'
 
@@ -369,23 +369,6 @@ class DictField(BaseField):
     def lookup_member(self, member_name):
         return self.basecls(db_field=member_name)
 
-class GeoLocationField(DictField):
-    """Supports geobased fields"""
-    
-    def validate(self, value):
-        """Make sure that a geo-value is of type (x, y)
-        """
-        if not isinstance(value, tuple) and not isinstance(value, list):
-            raise ValidationError('GeoLocationField can only hold tuples or lists of (x, y)')
-        
-        if len(value) <> 2:
-            raise ValidationError('GeoLocationField must have exactly two elements (x, y)')
-    
-    def to_mongo(self, value):
-        return {'x': value[0], 'y': value[1]}
-    
-    def to_python(self, value):
-        return value.keys()
 
 class ReferenceField(BaseField):
     """A reference to a document that will be automatically dereferenced on
@@ -500,6 +483,7 @@ class GenericReferenceField(BaseField):
     def prepare_query_value(self, op, value):
         return self.to_mongo(value)['_ref']
 
+
 class BinaryField(BaseField):
     """A binary data field.
     """
@@ -520,3 +504,24 @@ class BinaryField(BaseField):
 
         if self.max_bytes is not None and len(value) > self.max_bytes:
             raise ValidationError('Binary value is too long')
+
+
+class GeoPointField(BaseField):
+    """A list storing a latitude and longitude.
+    """
+
+    _geo_index = True
+
+    def validate(self, value):
+        """Make sure that a geo-value is of type (x, y)
+        """
+        if not isinstance(value, (list, tuple)):
+            raise ValidationError('GeoPointField can only accept tuples or '
+                                  'lists of (x, y)')
+        
+        if not len(value) == 2:
+            raise ValidationError('Value must be a two-dimensional point.')
+        if (not isinstance(value[0], (float, int)) and
+            not isinstance(value[1], (float, int))):
+            raise ValidationError('Both values in point must be float or int.')
+