Question

我很难在特定日期范围内获得总销售额。我想显示销售报告过滤日期的总销售额数据。

这是我的html代码

      <div class="box box-success">
    <div class="box-header with-border">
      <h3 class="box-title">Sales Report</h3>

      <div class="box-tools pull-right">
        <button type="button" class="btn btn-box-tool" data- 
widget="collapse"><i class="fa fa-minus"></i></button>
        <button type="button" class="btn btn-box-tool" data-widget="remove"> 
<i class="fa fa-remove"></i></button>
      </div>
    </div>
    <!-- /.box-header -->
    <div class="box-body">
      <div class="row">
        <div class="box-body">
          <!-- Date and time range -->
          <div class="form-group">
            <label>Date and time range:</label>
            <div class="input-group">
              <div class="input-group-addon">
                <i class="fa fa-clock-o"></i>
              </div>
  <input type="text" class="form-control pull-right" id="reservationtime">
            </div>
            <!-- /.input group -->
          </div>
        </div>
      </div>
    </div>
  <div class="box box-success">
  <table id="example1" class="table table-bordered table-striped" 
 style="color: black;">
    <thead>
      <tr>
        <th>Brand</th>
        <th>Price</th>
        <th>Quantity</th>
        <th>Total</th>
        <th>Action</th>
     </tr>
    </thead>
  <tbody id="tableBody">
   </tbody>
   <tfoot>
     <tr>
       <td colspan="3">Total</td>
       <td id="payment"></td>  
     </tr>
   </tfoot>
</table>

这是我的JavaScript代码

  //=============== Start of Total Sales ========================

var rootRef = firebase.database().ref(); 
var rootreq = rootRef.child("sales"); 
rootreq.on('value',getReq); 
function getReq(snap){ 
var t1 = 0;
snap.forEach(keyReq => { 
    var total = keyReq.val().total; 
    var t = parseInt(total); 
    t1 += t; 
     document.getElementById("payment").innerText = t1;
}); 
// // $("#tr_count").valueOf(t1); 
// console.log(t1);
} 

//======================== End of Total Sales ==============================

 $(document).ready(function() {
var brandsRef = firebase.database().ref().child("sales");
brandsRef.on("child_added", snap=> {
   // var pic = snap.child("pic").val(); //This is the image src
    var brand = snap.child("product").val();
    var price = snap.child("price").val();
    var quantity =snap.child("quantity").val();
    var total =snap.child("total").val();

    var $row = $('<tr></tr>').appendTo('#tableBody');
    //$('<td></td>').appendTo($row).append($('<img />').attr('src', pic));
    $('<td></td>').appendTo($row).text(brand);
    $('<td></td>').appendTo($row).text(price);
    $('<td></td>').appendTo($row).text(quantity);
    $('<td></td>').appendTo($row).text(total);
    $('<td><a class="label label-primary" 
href="view_product_orders.html">View</button></td>').appendTo($row);

   })
});

这是我的Firebase数据

   [ null, {
  "date_delivered" : "09-19-18",
  "date_ordered" : "09-18-18",
  "price" : 54,
  "product" : "Century Tuna",
  "quantity" : 10,
  "total" : 10050
}, {
  "data_delivered" : "09-04-18",
  "date_ordered" : "09-03-18",
  "price" : 15,
  "product" : "Bearbrand",
  "quantity" : 30,
  "total" : 500
  }, {
  "date_delivered" : "09-08-18",
  "date_ordered" : "09-07-18",
  "price" : 12,
  "product" : "Noodles",
  "quantity" : 30,
  "total" : 309
  }, {
  "date_delivered" : "09-09-18",
  "date_ordered" : "09-08-18",
  "price" : 65,
  "product" : "Milk Tea",
  "quantity" : 58,
  "total" : 5000
  } ]

请为我的学校论文真的需要帮助。

如何在日期范围内获得总销售额

0 个答案: