我第一次在Rails中进行百货商店自动化项目，因此在生成账单时遇到一些问题。我想将表格的所有详细信息发送到我的控制器，在这里我可以计算购物车价格和总价。即使有其他方法可以克服这种情况，也请帮助我。
<html>
<head>
<style>
* {box-sizing: border-box}
label {
cursor: default;
color:black;
font-size: 15px;
}
.form-row {
padding: 5px 10px;
margin: 5px 0;
}
p {
color:black;
}
h1 {
color:black;
}
/* Set height of body and the document to 100% */
body, html {
height: 100%;
margin: 0;
font-family: Arial;
background-color: white;
}
.container {
padding: 16px;
background-color: white;
text-align: left;
font-size: 15px;
margin-top: 100px;
}
table {
width: 500px;
font-size: 30px;
border: 5px solid blue;
}
th, td {
text-align: left;
padding: 8px;
}
td {
color: black;
}
tr:nth-child(odd){background-color: #ffffb3}
th {
background-color: #4000ff;
color: white;
}
input:invalid + span:after {
content: '✖';
color: #f00;
padding-left: 5px;
}
input:valid + span:after {
content: '✓';
color: #26b72b;
padding-left: 5px;
}
</style>
</head>
<body bgcolor="white">
<div id="POItablediv" class="container">
<form name="genbill" method="get" action="genCartAction">
<table border="1">
<tbody id="POITable">
<tr>
<td>CATEGORY ID</td>
<td>NUMBER OF PRODUCTS</td>
<td>DELETE PRODUCT</td>
<td>ADD PRODUCT</td>
<td>ACTIONS</td>
</tr>
<tr>
<form name="genbill" method="get" action="genCartAction">
<td> <SELECT NAME="cid" >
<% for x in @cid %>
<OPTION VALUE="<%= x %>" ><%= x %></OPTION>
<% end %></SELECT><br>
</td>
<td><input type="text" name="nop"></td>
<td><input type="button" value="DELETE PRODUCT" data-cmd="delRow"></td>
<td><input type="button" value="ADD PRODUCT" data-cmd="insRow"></td>
</tr>
</tbody>
</table></form>
<form name="genbill" method="get" action="genBillAction">
<input type="text" name="bid" readonly hidden="true">
<input type="submit" value="CLICK HERE TO GENERATE BILL" disabled="TRUE">
</form>
</div>
<script>
function tableClicks (e) {
let cmd = e.target.getAttribute('data-cmd');
if (cmd && (cmd in buttonEvents)) {
buttonEvents[cmd](e);
}
return;
}
let table = document.getElementById('POITable');
let buttonEvents = {
insRow: function () {
var newRow = table.rows[1].cloneNode(true);
table.appendChild(newRow);
newRow.firstElementChild.textContent = newRow.rowIndex;
return;
},
delRow: function (e) {
var rowIdx = e.target.closest('tr').rowIndex,
rows = null;
if (rowIdx === 1) return; // Don't delete the first row
table.deleteRow(rowIdx);
// Update row numbers
rows = table.rows;
for (const row of rows) {
let idx = row.rowIndex;
if (idx < 1) continue; // Skip the header row
row.firstElementChild.textContent = idx;
}
return;
}
};
table.addEventListener('click', tableClicks);
</script>
</body>
</html>
答案 0 :(得分：0)
如果仅是要计算总价，则应在javascript代码中进行操作，而不必为此而创建端点...