[bug-#119] Add support to "__all__" fields in serializer

rest_framework_gis/serializers.py

@@ -53,7 +53,7 @@ def __init__(self, *args, **kwargs):
         default_id_field = None
         primary_key = self.Meta.model._meta.pk.name
         # use primary key as id_field when possible
-        if not hasattr(meta, 'fields') or primary_key in meta.fields:
+        if not hasattr(meta, 'fields') or meta.fields == '__all__' or primary_key in meta.fields:
             default_id_field = primary_key
         meta.id_field = getattr(meta, 'id_field', default_id_field)
 
@@ -67,7 +67,7 @@ def check_excludes(field_name, field_role):
 
         def add_to_fields(field_name):
             """Make sure the field is included in the fields"""
-            if hasattr(meta, 'fields'):
+            if hasattr(meta, 'fields') and meta.fields != '__all__':
                 if field_name not in meta.fields:
                     if type(meta.fields) is tuple:
                         additional_fields = (field_name,)

tests/django_restframework_gis_tests/serializers.py

@@ -27,7 +27,7 @@ class LocationGeoSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Location
-        exclude = []
+        fields = '__all__'
 
 
 class PaginatedLocationGeoSerializer(pagination.PageNumberPagination):
@@ -47,7 +47,7 @@ def get_fancy_name(self, obj):
     class Meta:
         model = Location
         geo_field = 'geometry'
-        exclude = []
+        fields = '__all__'
 
 
 class LocationGeoFeatureSlugSerializer(LocationGeoFeatureSerializer):
@@ -65,7 +65,7 @@ class Meta:
         model = Location
         geo_field = 'geometry'
         id_field = False
-        exclude = []
+        fields = '__all__'
 
 
 class LocationGeoFeatureNoIdSerializer(LocationGeoFeatureSerializer):