自定义事件优化

src/views/form/webDesign/customEventExpression.vue

@@ -187,6 +187,7 @@ export default {
       })
     },
     associationListFilter(){
+      if (!this.associationList || !this.associationList.length) return [];
       let list = this.associationList.reduce((acc, o) => {
         const existing = acc.find(l => l.tableName === o.tableName);
         if (!existing) {