Add helper vfjsHelperSchemaHasErrors

Author: jarvelov

src/vfjs-global-mixin/methods/vfjs-helpers/index.js

@@ -249,6 +249,14 @@ const vfjsHelpers = {
 
     return value;
   },
+  vfjsHelperSchemaHasErrors(schema, model) {
+    const value = typeof model === 'undefined' ? this.getVfjsModel() : this.getVfjsFieldModel(model);
+
+    this.ajv.validate(schema, value);
+    const oldErrors = this.ajv.errors ? this.ajv.errors : [];
+
+    return oldErrors.length === 0;
+  },
   getVfjsFieldsModels(fields, fieldModels = []) {
     return fields.reduce((models, { children = [], model }) => {
       if (model) {