c端预定

@@ -2,6 +2,8 @@
 import util from '../../utils/util';
 import App from '../../utils/api';
 const {regeneratorRuntime} = global
+import PubSub from '../../utils/PubSub'
+console.log(PubSub)
 Page({
 
   /**
@@ -11,14 +13,33 @@ Page({
     sellers:[],
     hasMore:true,
   },
-
+  sellers:[],
   /**
    * 生命周期函数--监听页面加载
    */
   onLoad: function (options) {
-
+    PubSub.on(
+      'follow',
+      data=>{
+        console.log('follow.msg',data)
+        this.formatSellers(data);
+      }
+    )
+  },
+  formatSellers(data){
+    let sellers=[];
+    this.sellers.forEach(seller=>{
+      if(seller.id==data.sid){
+        seller.hasFollow=data.hasFollow
+      }
+      if(seller.hasFollow){
+        sellers.push(seller)
+      }
+    })
+    this.setData({
+      sellers:sellers
+    })
   },
-
   /**
    * 生命周期函数--监听页面初次渲染完成
    */
@@ -30,7 +51,12 @@ Page({
    * 生命周期函数--监听页面显示
    */
   onShow: function () {
-    if(this.hasMore){
+    if(this.hasMore || this.data.sellers.length==0){
+      this.sellers=[]
+      this.offset=1
+      this.setData({
+        sellers:[]
+      })
       this.getPos()
     }
   },
@@ -46,7 +72,7 @@ Page({
    * 生命周期函数--监听页面卸载
    */
   onUnload: function () {
-
+    PubSub.off('follow')
   },
 
   /**
@@ -94,13 +120,14 @@ Page({
         }else{
           seller.seller_tel=[]
         }
-
+        seller.hasFollow=true
       })
-
+      sellers=[...this.data.sellers,...sellers]
       this.setData({
-        sellers:[...this.data.sellers,...sellers],
+        sellers:sellers,
         hasMore:this.hasMore,
       })
+      this.sellers=sellers
     })
   },
   getPos(){

@@ -6,7 +6,8 @@
         <view>您还没有收藏任何餐厅哦</view>
     </view>
     <view class="follow" wx:else="">
-        <view class="seller" wx:for="{{sellers}}" wx:key="sellers.key" bindtap="gotoDetail" data-sid="{{item.id}}">
+        <view class="seller" wx:for="{{sellers}}" wx:key="sellers.key"
+              bindtap="gotoDetail" data-sid="{{item.id}}" wx:if="{{item.hasFollow}}">
             <sb-tr seller="{{item}}" hasStat="{{true}}"></sb-tr>
         </view>
         <view class="seller flex-vc" wx:if="{{!hasMore}}">没有更多了</view>

@@ -2,6 +2,7 @@
 import util from '../../utils/util';
 import App from '../../utils/api';
 const {regeneratorRuntime} = global
+import PubSub from '../../utils/PubSub'
 Page({
 
   /**
@@ -135,10 +136,18 @@ Page({
     if(this.data.IsCollectionSeller){//已收藏
       param.cancel=1
     }
+    let hasFollow=!this.data.IsCollectionSeller
     this.setData({
-      IsCollectionSeller:!this.data.IsCollectionSeller
+      IsCollectionSeller:hasFollow
     })
     App.Customer.SetCollectionRel(param);
+    PubSub.emit(
+      'follow',
+      {
+        sid:this.options.id,
+        hasFollow:hasFollow,
+      }
+    )
   },
   getPos(){
     this._getPos().then(res => {

+/**
+ * Created by goto9 on 2019/3/8.
+ */
+class PubSub {
+  constructor() {
+    this.PubSubCache = {
+      $uid: 0
+    };
+  }
+
+  on(type, handler) {
+    let cache = this.PubSubCache[type] || (this.PubSubCache[type] = {});
+
+    handler.$uid = handler.$uid || this.PubSubCache.$uid++;
+    cache[handler.$uid] = handler;
+  }
+
+  emit(type, ...param) {
+    let cache = this.PubSubCache[type],
+      key,
+      tmp;
+
+    if(!cache) return;
+
+    for(key in cache) {
+      tmp = cache[key];
+      cache[key].call(this, ...param);
+    }
+  }
+
+  off(type, handler) {
+    let counter = 0,
+      $type,
+      cache = this.PubSubCache[type];
+
+    if(handler == null) {
+      if(!cache) return true;
+      return !!this.PubSubCache[type] && (delete this.PubSubCache[type]);
+    } else {
+      !!this.PubSubCache[type] && (delete this.PubSubCache[type][handler.$uid]);
+    }
+
+    for($type in cache) {
+      counter++;
+    }
+
+    return !counter && (delete this.PubSubCache[type]);
+  }
+}
+export default new PubSub()
\ No newline at end of file