more filter fixes

src/database/compile/filter.rs

@@ -1,6 +1,6 @@
+use crate::database::Database;
 use crate::database::object::{SchemaObject, SchemaTypeOrArray};
 use crate::database::schema::Schema;
-use crate::database::Database;
 use std::collections::BTreeMap;
 use std::sync::Arc;
 
@@ -20,16 +20,26 @@ impl Schema {
           let mut child_obj = SchemaObject::default();
           child_obj.type_ = Some(SchemaTypeOrArray::Multiple(filter_type));
 
-          filter_props.insert(key.clone(), Arc::new(Schema { obj: child_obj, always_fail: false }));
+          filter_props.insert(
+            key.clone(),
+            Arc::new(Schema {
+              obj: child_obj,
+              always_fail: false,
+            }),
+          );
         }
       }
 
       if !filter_props.is_empty() {
         let mut wrapper_obj = SchemaObject::default();
-        wrapper_obj.type_ = Some(SchemaTypeOrArray::Single("object".to_string()));
+        // Conceptually link this directly into the STI lineage of the base `filter` object
+        wrapper_obj.type_ = Some(SchemaTypeOrArray::Single("filter".to_string()));
         wrapper_obj.properties = Some(filter_props);
 
-        return Some(Schema { obj: wrapper_obj, always_fail: false });
+        return Some(Schema {
+          obj: wrapper_obj,
+          always_fail: false,
+        });
       }
     }
     None

src/database/compile/mod.rs

@@ -1,6 +1,6 @@
 pub mod collection;
 pub mod edges;
-pub mod filters;
+pub mod filter;
 pub mod polymorphism;
 
 use crate::database::schema::Schema;