微信小程序动态input验证

最近写微信小程序，需要使用到动态表单，输入框都要从服务器上加载。这里分享一下解决方案。

let app = getApp()
let ajax = require('../../network/ajax')
Page({
  data: {
    Custom: {},
    lists: []
  },
  onLoad: function () {
    if (app.globalData.CUSTOM) //预先获取了自定义表单信息，有ID, Required两个参数
    {
      var array = new Array();
      for(var i=0;i<app.globalData.CUSTOM.length;i++)
      {
        var array2 = new Array();
        array2['index'] = app.globalData.CUSTOM[i]['ID']
        array2['value'] = ""
        array[i] = array2
      }
      this.setData({
        Custom: app.globalData.CUSTOM,
        lists: array
      })
    }
  },
  bindKeyInput: function (e) {
    let id = e.currentTarget.dataset.id;
    var thedata = new Array();
    thedata['index'] = id
    thedata['value'] = e.detail.value
    this.data.lists[id] = thedata;
    this.setData({
      lists: this.data.lists
    })
  },  
  checkExtraInput()
  {
    console.log(this.data.Custom);
    for(var i=0;i<this.data.lists.length;i++)
    {
      var value = this.data.lists[i].value;
      if (this.data.Custom[i]['Required'] == 1 && value == "") return false;
    }
    return true;
  },
  bindFormSubmit: function (e){
    if (!this.checkExtraInput()) {
      wx.showModal({
        content: '请完成表单后再试！',
        showCancel: false
      });
    }
    else
    {
      var array = new Object();
      for(var i=0;i<this.data.lists.length;i++)
      {
        var array2 = new Object();
        array2.id = this.data.Custom[i]['ID'];
        array2.value = this.data.lists[i].value;
        array[i] = array2;
      }
      console.log(JSON.stringify(array)); //最后转为JSON格式，Post到服务器上
      });
    }
  }
});