AppML Case Study - Products
The HTML Page
This is the HTML source:
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8">
<title>Products</title>
<link rel="stylesheet"
href="https://www.w3schools.com/w3css/4/w3.css">
<script src="https://www.w3schools.com/appml/2.0.3/appml.js"></script>
</head>
<body>
<div class="w3-container w3-content">
<h1>Products</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>ProductName:</label>
<input id="ProductName" class="w3-input
w3-border">
</p>
<p>
<label>Supplier:</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>Category:</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>Unit:</label>
<input id="Unit" class="w3-input w3-border">
</p>
<p>
<label>Price:</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>Product
Name</th>
<th>Category</th>
<th>Supplier</th>
<th>Price</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 + "
products. Total price: $" + tot.toFixed(2);
}
if ($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)) {
$appml.setError(15, "Price must be a number");
return -1;
}
}
if ($appml.message == "validate") {
if ($appml.validate.item
== "Price") {
if (isNaN($appml.validate.value)) {
$appml.setError(15, "Price must be a number");
return;
}
}
}
}
</script>
</body>
</html>
PHP »
Models
These are the models used in the application:
List Model
{
"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"
: "Name"},
{"item" : "Products.SupplierID", "type" : "number", "hidden" :
"true"},
{"item" : "Suppliers.SupplierID", "label" : "Supplier"},
{"item" : "Categories.CategoryID", "label" : "Category"}
],
"sortitems" : [
{"item" : "ProductName"}
]
Form Model
{
"database" : {
"connection" : "localmysql",
"sql" : "SELECT *
FROM Products",
"maintable" : "Products",
"keyfield" : "ProductID"
},
"updateItems" : [
{"item" : "ProductName"},
{"item" :
"SupplierID"},
{"item" : "CategoryID"},
{"item" : "Unit"},
{"item"
: "Price"}
]
}
