我创建了一个生成估计的表格。我已经弄清楚了如何添加，更新订单项和估算总额以及删除订单项和估算总额。
我现在想做的是，一旦用户在下表中完成数据输入，我需要用户能够使用估计主键tbl_estimate保存该估计，因此...我需要翻转每个表行转换为以下JSON格式，然后将其提交到PHP PDO页面进行处理。
我怎样才能序列化一个表？
// DESIRED JSON FORMAT
[
{
"PK_TP_ID":539,
"DESCRIPTION":"LINE ITEM 1",
"QUANTITY":"5",
"UNIT":"SF",
"COST":"2.24",
"TOTAL":"11.20",
},
{
"PK_TP_ID":540,
"DESCRIPTION":"LINE ITEM 2",
"QUANTITY":"10",
"UNIT":"SF",
"COST":"2.01",
"TOTAL":"20.01"
},
{
"PK_TP_ID":541,
"DESCRIPTION":"LINE ITEM 3",
"QUANTITY":"15",
"UNIT":"SF",
"COST":"2.60",
"TOTAL":"39"
}
]<!DOCTYPE html>
<html>
<head>
<!-- Import Google Icon Font -->
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<!-- Import materialize.min.css v1.0.0-alpha.4 -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0-alpha.4/css/materialize.min.css">
<!--Let browser know website is optimized for mobile-->
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<title>Estimator 1.0</title>
<style>
/* table_client_estimate_line_items header width
Header width = Column width --------------------------------------------- */
#table_client_estimate_line_items thead tr th:nth-child(1) {
width: auto;
text-align: left;
}
#table_client_estimate_line_items thead tr th:nth-child(2) {
width: auto;
text-align: left;
}
#table_client_estimate_line_items thead tr th:nth-child(3) {
width: auto;
text-align: left;
}
#table_client_estimate_line_items thead tr th:nth-child(4) {
width: auto;
text-align: left;
}
#table_client_estimate_line_items thead tr th:nth-child(5) {
width: auto;
text-align: left;
}
#table_client_estimate_line_items thead tr th:nth-child(6) {
width: auto;
text-align: center;
}
/* End Custom Table Headers---------------------------------------------- */
/* Begin table_client_estimate_line_items cell content alingment ---------------------------------- */
/* td:nth-child(1) = Table Column 1 Cells ------------------------------- */
#table_client_estimate_line_items tbody tr td:nth-child(1) {
text-align: left;
/* Client Name Column cells... */
padding-left: 7px !important;
}
/* td:nth-child(2) = Table Column 2 Cells ------------------------------- */
#table_client_estimate_line_items tbody tr td:nth-child(2) {
text-align: left;
}
/* td:nth-child(3) = Table Column 3 Cells ------------------------------- */
#table_client_estimate_line_items tbody tr td:nth-child(3) {
text-align: left;
}
/* td:nth-child(4) = Table Column 4 Cells ------------------------------- */
#table_client_estimate_line_items tbody tr td:nth-child(4) {
text-align: left;
}
/* td:nth-child(5) = Table Column 5 Cells ------------------------------- */
#table_client_estimate_line_items tbody tr td:nth-child(5) {
text-align: left;
}
/* td:nth-child(6) = Table Column 6 Cells ------------------------------- */
#table_client_estimate_line_items tbody tr td:nth-child(6) {
text-align: center;
}
/* End table_client_estimate_line_items cell content alingment ------------------------------------ */
/* table_client_estimate_line_items cell padding */
#table_client_estimate_line_items tbody tr td {
padding: 0px 5px !important;
}
/* End Custom Padding of Table Cells (td). ------------------------------ */
#estimate_total_refresh {
cursor: pointer;
}
</style>
</head>
<body>
<!-- Begin container -->
<div class="container">
<!--
888888 db 88""Yb 88 888888
88 dPYb 88__dP 88 88__
88 dP__Yb 88""Yb 88 .o 88""
88 dP""""Yb 88oodP 88ood8 888888
-->
<!-- Begin row -->
<div class="row">
<!-- Begin input/column -->
<div class="col s12">
<!-- Begin table -->
<table id="table_client_estimate_line_items" class="striped col s12">
<!-- Begin table head -->
<thead>
<tr>
<th>DESCRIPTION</th>
<th> </th>
<th>UNIT</th>
<th>COST</th>
<th>SUBT</th>
<th> </th>
</tr>
</thead>
<!-- ./ End table head -->
<tfoot>
<th> </th>
<th> </th>
<th> </th>
<th>TOTAL</th>
<th id="estimate_total" class="red-text">$0,00</th>
<th> </th>
</tfoot>
<!-- Begin table body -->
<tbody>
<tr>
<td class="red-text" style="font-size: 0.85rem; font-weight: bold;">LINE ITEM 1</td>
<td><input id="" name="" value="" placeholder="" type="text" style="height: 25px;" class="red-text line_item_quantity"></td>
<td>SF</td>
<td class="line_item_cost">1.33</td>
<td class="line_item_total">0.00</td>
<td><a class="waves-effect waves-light btn-flat red-text lighten-1 btn_delete_table_row"><i class="material-icons md-24">close</i></a></td>
</tr>
<tr>
<td class="red-text" style="font-size: 0.85rem; font-weight: bold;">LINE ITEM 2</td>
<td><input id="" name="" value="" placeholder="" type="text" style="height: 25px;" class="red-text line_item_quantity"></td>
<td>SF</td>
<td class="line_item_cost">2.01</td>
<td class="line_item_total">0.00</td>
<td><a class="waves-effect waves-light btn-flat red-text lighten-1 btn_delete_table_row"><i class="material-icons md-24">close</i></a></td>
</tr>
<tr>
<td class="red-text" style="font-size: 0.85rem; font-weight: bold;">LINE ITEM 3</td>
<td><input id="" name="" value="" placeholder="" type="text" style="height: 25px;" class="red-text line_item_quantity"></td>
<td>SF</td>
<td class="line_item_cost">0.52</td>
<td class="line_item_total">0.00</td>
<td><a class="waves-effect waves-light btn-flat red-text lighten-1 btn_delete_table_row"><i class="material-icons md-24">close</i></a></td>
</tr>
</tbody>
<!-- ./ End table body -->
</table>
<!-- ./ End table -->
</div>
<!-- ./ End input/column -->
</div>
<!-- ./ End row -->
</div>
<!-- ./ End container -->
<!-- 1. Import jquery.min.js v3.2.1 JS !-->
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!-- ***BEFORE*** materialize.js !-->
<!-- ***AFTER*** jquery.min.js !-->
<!-- 2. Import materialize.min.js v1.0.0-alpha.4 JS !-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0-alpha.4/js/materialize.min.js"></script>
<!-- BEGIN Before DOCUMENT.READY -->
<script>
// Initialization
init_1();
// begin function init_1()
function init_1 () {
// Create global timer outside keyup scope.
var timer;
// Bind keyup event to all input type=text in #table_client_estimate_line_items > tbody tr td.
$("#table_client_estimate_line_items > tbody tr td input[type=text]").keyup(function(event) {
// reference to the inpout text we are currently in...
var self = $(this);
// line_item_quantity
line_item_quantity = $(this).val();
// Trim it..
line_item_quantity = $.trim(line_item_quantity);
// parent_line_item_cost td text...
var parent_line_item_cost = $(this).closest('tr').children('.line_item_cost').text();
// If timer has been set but user still typing...
if (timer) {
// Reset timer and abort function call.
clearTimeout(timer);
}
// Set timer to tick in 1 second for 1 second then call function and stop.
timer = setTimeout(function(event) {
// BEGIN REFRESH ESTIMATE LINE ITEM TOTAL
let parent_line_item_total = (line_item_quantity * parent_line_item_cost);
self.closest('tr').children('.line_item_total').text(parent_line_item_total.toFixed(2));
// END REFRESH ESTIMATE LINE ITEM TOTAL
// BEGIN REFRESH ESTIMATE TOTAL
// goblal var line_item_cost_sum...
var line_item_total_sum = 0;
// for each table td cell with class .line_item_total...
$('.line_item_total').each(function(){
// reference to current td text...
let td_text = $(this).text();
// SUM ONLY if td text is a number...
if(!isNaN(td_text) && td_text.length != 0) {
// if it is a number, add this number to global var line_item_total_sum.
line_item_total_sum += parseFloat(td_text);
}
});
// finally, output global var line_item_total_sum to element id #estimate_total located in table > tfoot
$('#estimate_total').empty().append('$', line_item_total_sum.toFixed(2));
console.log('Line Items Totals: $' + line_item_total_sum.toFixed(2));
// END REFRESH ESTIMATE TOTAL
}, 1000); //wait 1000 milliseconds before triggering event.
});
}
// END function init_1()
// CLICK Events --------------------------------------------------------------
// Remove line item from table_client_estimate_line_items.
$(document).on('click','a.btn_delete_table_row', function(event) {
// Deletes parent table row.
$(this).closest('tr').remove();
// Recalculate Estimate Totals..
recalculateEstimateTotal();
});
// BEGIN function recalculateEstimateTotal()
function recalculateEstimateTotal () {
// Create global timer outside keyup scope.
var timer;
// If timer has been set but user still typing...
if (timer) {
// Reset timer and abort function call.
clearTimeout(timer);
}
// Set timer to tick in 1 second for 1 second then call function and stop.
timer = setTimeout(function(event) {
// BEGIN REFRESH ESTIMATE TOTAL
// goblal var line_item_cost_sum...
var line_item_total_sum = 0;
// for each table td cell with class .line_item_total...
$('.line_item_total').each(function(){
// reference to current td text...
let td_text = $(this).text();
// SUM ONLY if td text is a number...
if(!isNaN(td_text) && td_text.length != 0) {
// if it is a number, add this number to global var line_item_total_sum.
line_item_total_sum += parseFloat(td_text);
}
});
// finally, output global var line_item_total_sum to element id #estimate_total located in table > tfoot
$('#estimate_total').empty().append('$', line_item_total_sum.toFixed(2));
console.log('Line Items Totals: $' + line_item_total_sum.toFixed(2));
// END REFRESH ESTIMATE TOTAL
}, 1000); //wait 1000 milliseconds before triggering event.
//});
}
// END function recalculateEstimateTotal()
// END Before DOCUMENT.READY -->
</script>
<!-- BEGIN DOCUMENT.READY -->
<script>
$(document).ready(function() {
});
// END DOCUMENT.READY -->
</script>
</body>
</html>javascript大神给出的解决方案
.serializeArray()仅在您的表包含表单元素时才有效。您只有一列包含表单元素。
相反，您可以通过在每个对象的mapping行中构建JSON。
$(function() {
$('button').click(function () {
// build json
var json = $('#table_client_estimate_line_items tbody tr').map(function () {
var id = null, // no idea where you got ID
desc = $('td', this).eq(0).text(),
qty = parseInt($('td', this).eq(1).find('input').val(), 10) || 0,
unit = $('td', this).eq(2).text(),
cost = parseFloat($('td', this).eq(3).text()) || 0,
total = qty * cost;
return {
"PK_TP_ID": id,
"DESCRIPTION": desc,
"QUANTITY": qty,
"UNIT": unit,
"COST": cost,
"TOTAL": total
}
}).get();
console.log(json);
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button>JSON</button>
<br><br>
<!-- Begin table -->
<table id="table_client_estimate_line_items" class="striped col s12">
<!-- Begin table head -->
<thead>
<tr>
<th>DESCRIPTION</th>
<th> </th>
<th>UNIT</th>
<th>COST</th>
<th>SUBT</th>
<th> </th>
</tr>
</thead>
<!-- ./ End table head -->
<tfoot>
<th> </th>
<th> </th>
<th> </th>
<th>TOTAL</th>
<th id="estimate_total" class="red-text">$0,00</th>
<th> </th>
</tfoot>
<!-- Begin table body -->
<tbody>
<tr>
<td class="red-text" style="font-size: 0.85rem; font-weight: bold;">LINE ITEM 1</td>
<td><input id="" name="" value="5" placeholder="" type="text" style="height: 25px;" class="red-text line_item_quantity"></td>
<td>SF</td>
<td class="line_item_cost">1.33</td>
<td class="line_item_total">0.00</td>
<td><a class="waves-effect waves-light btn-flat red-text lighten-1 btn_delete_table_row"><i class="material-icons md-24">close</i></a></td>
</tr>
<tr>
<td class="red-text" style="font-size: 0.85rem; font-weight: bold;">LINE ITEM 2</td>
<td><input id="" name="" value="10" placeholder="" type="text" style="height: 25px;" class="red-text line_item_quantity"></td>
<td>SF</td>
<td class="line_item_cost">2.01</td>
<td class="line_item_total">0.00</td>
<td><a class="waves-effect waves-light btn-flat red-text lighten-1 btn_delete_table_row"><i class="material-icons md-24">close</i></a></td>
</tr>
<tr>
<td class="red-text" style="font-size: 0.85rem; font-weight: bold;">LINE ITEM 3</td>
<td><input id="" name="" value="15" placeholder="" type="text" style="height: 25px;" class="red-text line_item_quantity"></td>
<td>SF</td>
<td class="line_item_cost">0.52</td>
<td class="line_item_total">0.00</td>
<td><a class="waves-effect waves-light btn-flat red-text lighten-1 btn_delete_table_row"><i class="material-icons md-24">close</i></a></td>
</tr>
</tbody>
<!-- ./ End table body -->
</table>
<!-- ./ End table -->TODO添加rounding。
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