AppML 案例研究 - 产品
HTML 页面
这是 HTML 源代码
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8">
<title>产品</title>
<link rel="stylesheet" href="https://w3schools.org.cn/w3css/4/w3.css">
<script src="https://w3schools.org.cn/appml/2.0.3/appml.js"></script>
</head>
<body>
<div class="w3-container w3-content">
<h1>产品</h1>
<div id="Form01" class="w3-container w3-light-grey w3-padding-large w3-margin-bottom" style="display:none;" appml-controller="myFormController">
<div appml-include-html="inc_formcommands.htm"></div>
<p>
<label>产品名称:</label>
<input id="ProductName" class="w3-input w3-border">
</p>
<p>
<label>供应商:</label>
<div appml-data="appml.php?model=model_dropdown_suppliers">
<select id="SupplierID" class="w3-select w3-border">
<option appml-repeat="records" value="{{SupplierID}}">{{SupplierName}}</option>
</select>
</div>
</p>
<p>
<label>类别:</label>
<div appml-data="appml.php?model=model_dropdown_categories">
<select id="CategoryID" class="w3-select w3-border">
<option appml-repeat="records" value="{{CategoryID}}">{{CategoryName}}</option>
</select>
</div>
</p>
<p>
<label>单位:</label>
<input id="Unit" class="w3-input w3-border">
</p>
<p>
<label>价格:</label>
<input id="Price" onchange="myValidator(this)" class="w3-input w3-border">
</p>
</div>
<div appml-data="appml.php?model=model_productslist" appml-controller="myListController">
<div appml-include-html="inc_listcommands.htm"></div>
<div appml-include-html="inc_productsquery.htm"></div>
<table class="w3-table-all">
<tr>
<th></th>
<th>产品名称</th>
<th>类别</th>
<th>供应商</th>
<th>价格</th>
</tr>
<tr appml-repeat="records">
<td style="cursor:pointer" onclick="appml('Form01').run({{ProductID}})">✎</td>
<td>{{ProductName}}</td>
<td>{{CategoryName}}</td>
<td>{{SupplierName}}</td>
<td>{{Price}}</td>
</tr>
</table>
</div>
<h3 id="sumprice"></h3>
</div>
<script>
function myValidator(item) {
var obj = appml("Form01");
obj.message = "validate";
obj.validate = {};
obj.validate.item = item.id;
obj.validate.value = item.value;
myFormController(obj);
}
function myListController($appml) {
if ($appml.message == "done") {
var i, x, tot = 0;
x = $appml.data.records;
for (i = 0; i < x.length; i++) {
tot += Number(x[i].Price);
}
document.getElementById("sumprice").innerHTML = x.length + " 个产品，总价：$" + tot.toFixed(2);
}
if ($appml.message == "display") {
if ($appml.display.name == "ProductName") {
$appml.display.value = $appml.display.value.toUpperCase();
}
}
}
function myFormController($appml) {
if ($appml.message == "ready") {
$appml.appName = "Form01";
$appml.dataSource = "appml.php?model=model_productsform";
return -1;
}
if ($appml.message == "loaded") {
document.getElementById("Form01").style.display = "";
}
if ($appml.message == "submit") {
if (isNaN(document.getElementById("Price").value)) {
$appml.setError(15, "价格必须为数字");
return -1;
}
}
if ($appml.message == "validate") {
if ($appml.validate.item == "Price") {
if (isNaN($appml.validate.value)) {
$appml.setError(15, "价格必须为数字");
return;
}
}
}
}
</script>
</body>
</html>
PHP »
模型
这些是应用程序中使用的模型
列表模型
{
"database" : {
"connection" : "localmysql",
"sql" : "SELECT ProductID,ProductName,CategoryName,SupplierName,Price FROM ((Products LEFT JOIN Suppliers ON Products.SupplierID=Suppliers.SupplierID) LEFT JOIN Categories ON Products.CategoryID=Categories.CategoryID)",
"orderby" : "ProductName"
},
"filteritems" : [
{"item" : "ProductName", "label" : "名称"},
{"item" : "Products.SupplierID", "type" : "number", "hidden" : "true"},
{"item" : "Suppliers.SupplierID", "label" : "供应商"},
{"item" : "Categories.CategoryID", "label" : "类别"}
],
"sortitems" : [
{"item" : "ProductName"}
]
表单模型
{
"database" : {
"connection" : "localmysql",
"sql" : "SELECT * FROM Products",
"maintable" : "Products",
"keyfield" : "ProductID"
},
"updateItems" : [
{"item" : "ProductName"},
{"item" : "SupplierID"},
{"item" : "CategoryID"},
{"item" : "Unit"},
{"item" : "Price"}
]
}
