Alt get_available_layers_rpc

SQL Scripts/functions/get_available_layers(alternative).sql

@@ -0,0 +1,55 @@
+CREATE
+OR REPLACE FUNCTION get_availabale_layers_rpc (
+    _project_id       uuid
+) RETURNS TABLE (
+  document_id   uuid,
+  layer_id      uuid,
+  context_id    uuid,
+  is_active     BOOLEAN,
+  context_name  VARCHAR
+) 
+AS $body$
+DECLARE
+    _context_name     VARCHAR;
+    _document_id      uuid;
+    _contexts_row      public.contexts % rowtype;
+    _layer_context_row  public.layer_contexts % rowtype;
+    _layer_row        public.layers % rowtype;      
+BEGIN
+
+    -- Check project policy that contexts can be selected by this user
+    IF NOT (check_action_policy_organization(auth.uid(), 'contexts', 'SELECT') 
+      OR check_action_policy_project(auth.uid(), 'contexts', 'SELECT', _project_id)) 
+    THEN
+      RETURN NEXT;
+    END IF;  
+
+    -- Find all documents in the current context
+    FOR _contexts_row IN SELECT * FROM public.contexts c
+      WHERE c.project_id = _project_id
+    LOOP
+      RAISE LOG 'Found Context %', _contexts_row.id;
+      FOR _layer_context_row IN SELECT * FROM public.layer_contexts lcx
+        WHERE lcx.context_id = _contexts_row.id AND lcx.is_archived IS NOT TRUE
+      LOOP
+        RAISE LOG 'Found Layer Context %, Layer ID % ', _layer_context_row.id, _layer_context_row.layer_id;
+        FOR _document_id IN SELECT cd.document_id 
+          FROM public.context_documents cd WHERE cd.context_id = _layer_context_row.context_id AND cd.is_archived IS NOT TRUE
+        LOOP
+          RAISE LOG 'Found Document %', _document_id;        
+          FOR _layer_row IN SELECT * FROM public.layers l 
+            WHERE l.id = _layer_context_row.layer_id AND l.document_id = _document_id AND l.is_archived IS NOT TRUE
+          LOOP
+            document_id := _document_id;
+            context_id := _contexts_row.id;
+            is_active := _layer_context_row.is_active_layer;
+            layer_id := _layer_row.id;
+            context_name := _contexts_row.name;
+            RAISE LOG 'Found Available Document %', _document_id;
+            RETURN NEXT;
+          END LOOP;
+        END LOOP; 
+      END LOOP;
+    END LOOP; 
+END
+$body$ LANGUAGE plpgsql SECURITY DEFINER;