add selector functionality to generate script

generate.py

@@ -20,7 +20,8 @@ with open(args.schema) as schemaFile:
     schema = json.load(schemaFile)
 
 for table in schema["tables"]:
-    for column in table["columns"]:
+    columns = table["columns"]
+    for column in columns:
         if column["sqltype"] == 'serial':
             column["apitype"] = 'integer'
             column["jstype"] = 'number'
@@ -39,6 +40,7 @@ for table in schema["tables"]:
         elif column["sqltype"].startswith('numeric'):
             column["apitype"] = 'number'
             column["jstype"] = 'number'
+    table["selectors"] = [ y["name"] for y in sorted([ x for x in columns if "selector" in x ], key=lambda x: x["selector"])]
 
 for f in glob.glob(args.template):
     print(f"process {f}")