hardening

1 files changed, 9 insertions, 1 deletions

diff --git a/bsfs/query/validator.py b/bsfs/query/validator.py
index 6e3afa1..b259ea0 100644
--- a/bsfs/query/validator.py
+++ b/bsfs/query/validator.py
@@ -37,6 +37,10 @@ class Filter():
         self.schema = schema
 
     def __call__(self, root_type: bsc.Node, query: ast.filter.FilterExpression):
+        """Alias for `Filter.validate`."""
+        return self.validate(root_type, query)
+
+    def validate(self, root_type: bsc.Node, query: ast.filter.FilterExpression):
         """Validate a filter *query*, assuming the subject having *root_type*.
 
         Raises a `bsfs.utils.errors.ConsistencyError` if the query violates the schema.
@@ -237,7 +241,11 @@ class Fetch():
     def __init__(self, schema: bsc.Schema):
         self.schema = schema
 
-    def __call__(self, root_type: bsc.Node, query: ast.fetch.FetchExpression):
+    def __call__(self, root_type: bsc.Node, query: ast.filter.FilterExpression):
+        """Alias for `Fetch.validate`."""
+        return self.validate(root_type, query)
+
+    def validate(self, root_type: bsc.Node, query: ast.fetch.FetchExpression):
         """Validate a fetch *query*, assuming the subject having *root_type*.
 
         Raises a `bsfs.utils.errors.ConsistencyError` if the query violates the schema.