微信小程序实现留言功能

<view class=\'liuyanbox\'>
 <view class=\'ly-  clear\'>
  <view class=\'llt-left fl\'>邻居评论（{{yanlist.count}}）</view>
  <view class=\'llt-right fr\' data-id=\"0\" data-user=\"{{list.user_id}}\" bindtap=\'liuynChange\'>我要留言</view>
 </view>
 <view>
  <view class=\'xunhuan\' wx:for=\"{{yanlist.list}}\">
   <view class=\'zuobianll\'>
    <view class=\'ll-content clear\'>
     <view class=\'llc-touxiang fl\'>
      <image class=\'llc-image\' src=\'{{item.avatar}}\'></image>
     </view>
     <view class=\'llc-nall fl clear\'>
      <view class=\'clear\'>
       <view class=\'llc-name fl\'>{{item.nick_name}}</view>
       <view class=\'llc-time fl\'>{{item.create_date}}</view>
      </view>
      <view class=\'ll-lynr\'>
       <text space=\"emsp\" class=\'ll-trxt\'>{{item.content}}</text>
      </view>
     </view>
    </view>
    <view class=\'haz clear\'>
     <view class=\'fr huifu\'>
      <image class=\'hf-img\' data-id=\"{{item.id}}\" data-user=\"{{item.user_id}}\" bindtap=\'liuynChange\' src=\'https://jpadmin.99dudesign.com/public/img/source/btn_icon_huifu.png\'></image>
     </view>
     <view class=\'fr dianzan clear\'>
      <!-- <image class=\'dzimg fl\' src=\'https://jpadmin.99dudesign.com/public/img/source/btn_icon_zhendianzan.png\' data-id=\"{{item.id}}\" bindtap=\'llzanChange\'></image> -->
      <view class=\'dzimg fl {{item.lldzView?\"dzimg2\":\"nodzimg2\"}}\' data-id=\"{{item.id}}\" bindtap=\'llzanChange\'></view>
      <view class=\'dz-num fl\' data-text=\"{{item.like_count}}\">{{item.like_count}}</view>
     </view>
    </view>
   </view>
   <view class=\'one-huiwo\' wx:if=\"{{item._child}}!=null\" wx:for=\"{{item._child}}\">
    <view class=\'hw-top clear\'>
     <view class=\'htop-tx fl\'>
      <image class=\'htptx-img\' src=\'{{item.avatar}}\'></image>
     </view>
     <view class=\'htop-you fl \'>
      <view class=\'htop-name clear \'>
       <view class=\'fl hh-name\'>{{item.nick_name}}</view>
       <view class=\'fl hh-time\'>{{item.create_date}}</view>
      </view>
      <view class=\'htop-content \'>
       <text class=\'\' space=\"emsp\">{{item.content}}</text>
      </view>
     </view>
    </view>
    <view class=\'htop-dz clear\'>
     <view class=\'fr hhdznum\' data-text=\"{{item.like_count}}\">{{item.like_count}}</view>
     <view class=\'fr dz {{item.cnmView?\"dzimg2\":\"nodzimg2\"}}\' data-id=\"{{item.id}}\" bindtap=\'llzanChangeTwo\'></view>
    </view>
   </view>
  </view>
 </view>
</view>
<!-- 留言 -->
<view class=\'zhegai hide {{llbView?\"block\":\"\"}}\' bindtap=\'llbquxiao\'></view>
<view class=\'liuyanban hide {{llbView?\"block\":\"\"}}\'>
<view class=\'liuyb \'>留言</view>
<textarea class=\'shuruk\' value=\"{{llbcontent}}\" bindinput=\"llbInput\"></textarea>
<view class=\'qandq clear\'>
<view class=\'quxiao fl\' bindtap=\'llbquxiao\'>取消</view>
<view class=\'queding fl\' bindtap=\'llbChange\'>确定</view>
</view>
</view>

.nodzimg2 {
 background: url(空心);
 background-size: 100%;
}
 
.dzimg2 {
 background: url(实心);
 background-size: 100%;
}

var liuynfun = function (that) {
 wx.request({
  url: getApp().data.host + \'...\',
  method: \"POST\",
  data: {
   \"column\": \"Routine\",
   \"row_id\": that.data.url
  },
  header: {
   \'content-type\': \'application/x-www-form-urlencoded\'
  },
  success: function (res) {
   if (res.data.list != \"\") {
    //第一行留言
    for (var i in res.data.list) {
     res.data.list[i].lldzView = false;
     if (res.data.list[i].like_user != null) {
      if (res.data.list[i].like_user.indexOf(wx.getStorageSync(\'user_id\')) != \"-1\") {
       res.data.list[i].lldzView = true
      }
     }
     // 第二行留言
     if (res.data.list[i]._child){
      for (var j in res.data.list[i]._child){
       res.data.list[i]._child[j].cnmView=false
       if (res.data.list[i]._child[j].like_user != null) {
        if (res.data.list[i]._child[j].like_user.indexOf(wx.getStorageSync(\'user_id\')) != \"-1\") {
         res.data.list[i]._child[j].cnmView = true
        }
       }
      }
     }
    }
 
   }
   that.setData({
    yanlist: res.data
   })
  }
 })
}

liuynChange: function (e) {
  var that = this;
  console.log(e.currentTarget.dataset.id)
  that.setData({
   llbView: true,
   pid: e.currentTarget.dataset.id,
   to_user_id: e.currentTarget.dataset.user
  })
 },

llzanChangeTwo: function (e) { 
  console.log(e) 
  var that = this; 
  wx.request({ 
   url: getApp().data.host + \'...\', 
   method: \"POST\", 
   data: { 
    \"column\": \"Reply\", 
    \"user_id\": wx.getStorageSync(\'user_id\'), 
    \"id\": e.currentTarget.dataset.id 
   }, 
   header: { 
    \'content-type\': \'application/x-www-form-urlencoded\' 
   }, 
   success: function (res) { 
    var data = that.data.yanlist 
    console.log(data) 
    if (res.data != null) { 
     if (res.data.indexOf(wx.getStorageSync(\'user_id\')) == \"-1\") { 
      for (var i in data.list) { 
       if (data.list[i]._child) { 
        for (var j in data.list[i]._child) { 
         if (e.currentTarget.dataset.id == data.list[i]._child[j].id) { 
          data.list[i]._child[j].cnmView=true 
          data.list[i]._child[j].like_count = parseInt(data.list[i]._child[j].like_count) + 1 
         } 
        } 
       } 
      } 
      that.setData({ 
       yanlist: data 
      }) 
     } 
    } else { 
     for (var i in data.list) { 
      if (data.list[i]._child) { 
       for (var j in data.list[i]._child) { 
        if (e.currentTarget.dataset.id == data.list[i]._child[j].id) { 
         data.list[i]._child[j].cnmView = true 
         data.list[i]._child[j].like_count = parseInt(data.list[i]._child[j].like_count) + 1 
        } 
       } 
      } 
     } 
     that.setData({ 
      yanlist: data 
     }) 
    } 
   } 
  }) 
 },