✨ feat(修改活动): 人数限制数据写入逻辑调整

 <!--
  * @Date: 2022-09-21 16:04:10
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2022-10-19 15:33:56
+ * @LastEditTime: 2022-10-19 16:07:06
  * @FilePath: /swx/src/pages/createActivity/index.vue
  * @Description: 创建活动页面
 -->
@@ -73,7 +73,7 @@
         <!-- 人数限制 -->
         <van-field :value="reg_max" label-class="label-class-super" input-class="input-class" label="人数限制"
           :right-icon="icon_sel" input-align="right" placeholder="请选择" placeholder-style="color: #999;" customStyle=""
-          maxlength="" type="" :border="true" @tap="show_popup=true" :required="false" :disabled="true" />
+          maxlength="" type="" :border="true" @tap="onShowRegMax" :required="false" :disabled="true" />
         <!-- 是否发布 -->
         <van-field :value="publish_status" label-class="label-class-super" input-class="input-class" label="是否发布"
           :right-icon="icon_sel" input-align="right" placeholder="请选择" placeholder-style="color: #999;" customStyle=""
@@ -500,23 +500,37 @@ const onEndTime = (arr) => {
 
 
 /********* 人数限制 *********/
-const reg_max = ref('')
-const temp_reg_max = ref('')
+const reg_max = ref(''); // 表单显示人数绑定
+const temp_reg_max = ref(''); // 弹框显示人数绑定
 const limit_number = ref(false);
+
 const onRegMaxChange = ({ detail }) => {
-  temp_reg_max.value = detail
+  temp_reg_max.value = detail;
 }
 const onChangeLimit = ({ detail }) => { // 不限制开关回调
-  if (detail) {
   limit_number.value = detail
+  if (detail) { // 无限制清空数据
+    temp_reg_max.value = '';
+  }
+}
+
+let show_popup = ref(false);
+const clone_limit_number = ref(false); // 保存原始开关数据
+const clone_reg_max = ref(''); // 保存原始人数数据
+const onShowRegMax = () => { // 打开弹框
+  show_popup.value = true;
+  if (reg_max.value !== '无限制') {
+    clone_reg_max.value = reg_max.value;
   } else {
-    limit_number.value = detail
-    temp_reg_max.value = ''
+    clone_limit_number.value = true;
+    clone_reg_max.value = '无限制';
   }
 }
-const show_popup = ref(false);
 const closeEditLimit = () => {
   show_popup.value = false;
+  // 还原数据
+  reg_max.value = clone_reg_max.value;
+  limit_number.value = clone_limit_number.value;
 }
 const confirmEditLimit = () => { // 提交人数限制
   if (limit_number.value) {
@@ -738,6 +752,15 @@ const updateActivityInfo = async ({ activity, host }) => {
     defaultActivityTime = formatInfoDate(activity.activity_time);
     defaultStartTime = formatInfoDate(activity.reg_begin_time);
     defaultEndTime = formatInfoDate(activity.reg_end_time);
+    // 人数限制字段
+    if (activity.reg_max) { // 有人数
+      limit_number.value = false;
+      temp_reg_max.value = activity.reg_max;
+      reg_max.value = activity.reg_max;
+    } else { // 无限制
+      limit_number.value = true;
+      reg_max.value = '无限制';
+    }
   }
 }
 </script>