render unrequired fields for simple types and not schema editor

gadget_json_generated_form_child.js

@@ -191,6 +191,16 @@
     return false;
   }
 
+  function checkSchemaSimpleType(schema) {
+    return [
+      'string',
+      'integer',
+      'number',
+      'boolean',
+      'null'
+    ].indexOf(schema.type) >=0;
+  }
+
   function convertExpandedProperties2array(properties) {
     var property_name,
       arr = [],
@@ -787,6 +797,8 @@
 
   render_object = function (g, json_field, default_dict, root, path, schema_path) {
     var required = json_field.required || [],
+      schema_editor = json_field.hasOwnProperty("properties") &&
+        json_field.properties.hasOwnProperty("$schema"),
       used_properties = {},
       properties,
       selector = {};
@@ -819,13 +831,20 @@
           if (properties.hasOwnProperty(key)) {
             schema_arr = properties[key];
             s_o = schemaArrFilteredByDocument(schema_arr, default_dict[key]);
-            if (required.indexOf(key) >= 0 && schema_arr.length === 1) {
+            if (required.indexOf(key) >= 0 && checkSchemaArrOneChoise(schema_arr)) {
               used_properties[key] = false;
               q.push(render_field.bind(g, g, key, path,
                   s_o.schema, default_dict[key], root, s_o.schema_path, {required: true})
                 );
             }
-            if (default_dict.hasOwnProperty(key) && !used_properties.hasOwnProperty(key)) {
+            if (!used_properties.hasOwnProperty(key) &&
+              (default_dict.hasOwnProperty(key) ||
+                ( !schema_editor &&
+                  checkSchemaArrOneChoise(schema_arr) &&
+                  s_o.schema &&
+                  checkSchemaSimpleType(s_o.schema)
+                )
+              )) {
               used_properties[key] = "";
               q.push(
                 addSubForm.bind(g, {