fohow_xcx/pages/cart/cart.js

var _request = require('../../utils/request.js')
var _handle = require('../../utils/handle.js')
var validator = require('../../utils/validator.js')
Page({
  data: {
    orderId: 0,
    count:1,
    cartList:{},
    cartCount:0,
    cartTotal:0,
    checkeditems:'',
    checkeditemsnum:'',
    checkedtotal:0,
    selectedall:false,
    submitlock:false,
  },
  onLoad: function (options) {
  	this.getCartList();
  },
  onShow: function () {
  	this.getCartList();
  	this.setData({submitlock: false});
  	this.setData({selectedall: false});
  	this.getCartListAndSelected();
  },
  getCartList:function(){
  	console.log('getCartList')
  	var that = this
    var url = 'v1/cart/list'
    var params = {}
    var success = function (res) {
      console.log(res)
    	if(res.data.list){
    		that.setData({
	        cartList: res.data.list,
	        cartCount: res.data.count,
	        cartTotal: res.data.total
	      })
    	}else{
    		wx.showToast({
	        title: '请先授权登录~',
	        icon: 'none',
	        duration: 2000
	      })
    	}
    }
    _request.$get(url, params, success)
  },
  getCartListAndSelected:function(){
  	console.log('getCartList')
  	var that = this
    var url = 'v1/cart/list'
    var params = {}
    var success = function (res) {
      console.log(res)
    	if(res.data.list){
    		that.setData({
	        cartList: res.data.list,
	        cartCount: res.data.count,
	        cartTotal: res.data.total
	      })
    		that.allSelect();
    	}else{
    		wx.showToast({
	        title: '请先授权登录~',
	        icon: 'none',
	        duration: 2000
	      })
    	}
    }
    _request.$get(url, params, success)
  },
  add: function (e) {
  	console.log('tapadd',e)
  	var itemid = e.currentTarget.dataset.id;
  	var itemcount = e.currentTarget.dataset.count;
  	console.log('itemcount',itemcount)
    if (itemcount) {
    	var index = e.currentTarget.dataset.index;
      var count = itemcount + 1;
      this.setData({
	      ['cartList[' + index + '].count']:count 
	    })
      this.checkSelected();
//    this.changeServercount(count,itemid);
    }
  },
  mius: function (e) {
  	console.log('tapmius',e)
  	var itemid = e.currentTarget.dataset.id;
  	var itemcount = e.currentTarget.dataset.count;
    if (itemcount > 1) {
      var count = itemcount - 1;
      var index = e.currentTarget.dataset.index;
      this.setData({
	      ['cartList[' + index + '].count']:count 
	    })
      this.checkSelected();
//    this.changeServercount(count,itemid);
    }
  },
  changeCount: function (val) {
    var count = val.detail.value
    var itemid = val.target.dataset.id;
    var index = val.target.dataset.index;
    if (count <= 0) {
    	this.setData({
	      ['cartList[' + index + '].count']:1 
	    })
    	this.checkSelected();
//    this.changeServercount(1,itemid);
    } /*else if (count > this.data.project.left_count) {
      this.setData({
        count: this.data.project.left_count
      })
      this.changeCountService(this.data.project.left_count,itemid)
    }*/ else {
    	this.setData({
	      ['cartList[' + index + '].count']:count 
	    })
    	this.checkSelected();
//    this.changeServercount(count,itemid);
    }
  },
  changeServercount:function(val,itemid){
  	console.log('changeCountService')
  	var that = this
    var url = "/v1/cart/change_nums/" + itemid + "/" + val
    var params = {}
    var success = function (res) {
      console.log(res)
      if(res.result){
      	//修改成功
      }
    }
    _request.$post(url, params, success);
    this.getCartList();
  },
  itemselected:function(e){
  	console.log(this)
  	var nowitems = this.data.selectedItems;
  	let index = e.currentTarget.dataset.index;
  	var bool = this.data.cartList[index].IsBuy;
  	console.log('bool',bool)
    this.setData({
      ['cartList[' + index + '].IsBuy']: !bool
    })
    
  	this.checkSelected();
  },
  allSelect:function(){
  	if(this.data.selectedall){
  		for(var i in this.data.cartList){
  			this.setData({
		      ['cartList[' + i + '].IsBuy']: false
		    })
  		}
  		this.setData({
	      selectedall: false
	    })
  	}else{
  		for(var i in this.data.cartList){
  			this.setData({
		      ['cartList[' + i + '].IsBuy']: true
		    })
  		}
  		this.setData({
	      selectedall: true
	    })
  	}
  	this.checkSelected();
  },
  checkSelected:function(){
  	var cartList = this.data.cartList;
  	var checkitem = '';
  	var checkitemnum = '';
  	var checktotal = 0;
  	var checkcount = 0;
  	for(var i in cartList){
  		if(cartList[i].IsBuy){
  			checkitem = checkitem + cartList[i].id+',';
  			checkitemnum = checkitemnum + cartList[i].count+',';
  			checktotal = checktotal + (parseFloat(cartList[i].original_price) * parseInt(cartList[i].count));
  			checkcount = checkcount + parseInt(cartList[i].count);
  		}
  	}
  	checkitem = checkitem.substr(0,checkitem.length - 1);
  	checkitemnum = checkitemnum.substr(0,checkitemnum.length - 1);
  	
  	
  	this.setData({
		  checkeditems:checkitem,
		  checkeditemsnum:checkitemnum,
		  cartCount: checkcount,
    	cartTotal: checktotal
		})
//		this.mulChangeState();
  },
  mulChangeState:function(){
  	var that = this;
  	var itemid = this.data.checkeditems;
  	var itemnum = this.data.checkeditemsnum;
  	var url = "v1/cart/mult_change_state";
    var params = {
    	ids:itemid,
    	nums:itemnum
    }
    var success = function (res) {
      console.log('mulChangeState',res)
      if(res.data.result){
      	that.getCartList();
      }
    }
    _request.$post(url, params, success);
    
  },
  mulChangeStateToPay:function(){
  	var that = this;
  	var lock = this.data.submitlock;
  	if(!lock){
  		that.setData({submitlock: true})
  		var itemid = this.data.checkeditems;
	  	var itemnum = this.data.checkeditemsnum;
	  	var url = "v1/cart/order_mul";
	    var params = {
	    	ids:itemid,
	    	nums:itemnum
	    }
	    var success = function (res) {
	    	wx.showToast({
			    title: '正在跳转到结算页，请稍后~',
			    icon: 'none',
			    duration: 2000
			  })
	      console.log('mulChangeState',res)
	      if (res.data.order_id) {
	        wx.navigateTo({
	          url: '../pay/pay?orderId=' + res.data.order_id
	        })
	      }
	    }
	    var err = function(err){
	    	console.log(err)
	    	that.setData({submitlock: false})
	    }
	    _request.$post(url, params, success, err);
  	}
  	
    
  },
  toPay:function(){
  	
  	var that = this;
		var url = "/v1/cart/order_mul";
    var params = {}
    var success = function (res) {
      console.log(res)
  		if (res.data.order_id) {
        wx.navigateTo({
          url: '../pay/pay?orderId=' + res.data.order_id
        })
      }
    }
    _request.$get(url, params, success);
  },
  delSelected:function(){
  	var that = this;
  	var itemid = this.data.checkeditems;
  	if(itemid== ''){
  		wx.showToast({
        title: '没有选中任何商品~',
        icon: 'none',
        duration: 2000
      })
  	}else{
  		wx.showModal({
		  title: '提示',
		  content: '确定要删除选中的商品吗？',
		  success: function (sm) {
		    if (sm.confirm) {
		        var url = "/v1/cart/mult_delele";
				    var params = {
				    	ids:itemid
				    }
				    var success = function (res) {
				      console.log(res)
				      if(res.data.result){
				      	
				      }
				      that.getCartList();
				    }
				    _request.$post(url, params, success);
		      } else if (sm.cancel) {
		        console.log('用户点击取消')
		      }
		    }
		  })
  	}
  }
})