<AppML> Case Study - Prototyping


This case study demonstrates how to build a full <AppML> Internet application, with functions for listing, editing, and searching information from several tables in a database.


Prototyping

In this chapter we will set up a prototype model for each table in the database.

Prototypes are very handy starting point for developing applications.


Prototype Models

First, create a folder for the prototypes. Name the folder Prototypes.

Then, create a prototype model for each table in the database.

Use SELECT * from each table, and save the models as XML files:

Model: Proto_Customers.xml

<appml>
<datasource>
  <database>
  <connection>AppmlDemo</connection>
  <sql>SELECT * FROM Customers</sql>
  </database>
</datasource>
</appml>

Model: Proto_Suppliers.xml

<appml>
<datasource>
  <database>
  <connection>AppmlDemo</connection>
  <sql>SELECT * FROM Suppliers</sql>
  </database>
</datasource>
</appml>

Model: Proto_Products.xml

<appml>
<datasource>
  <database>
  <connection>AppmlDemo</connection>
  <sql>SELECT * FROM Products</sql>
  </database>
</datasource>
</appml>



Prototype Views

Create a prototype view, save it as Demo_Prototype.html, and try it yourself:

View: Demo_Prototype.htm

<h1>Customers</h1>
<div id="List01"></div>

<script src="appml.js"></script>
<script>
customers=new AppML("appml.aspx","Prototypes/Customers");
customers.run("List01");
</script>

Try it yourself »


All Together Now

Finally, with a little JavaScript coding, create a simple prototype page for all prototype models:

Demo_Prototype_Views.htm

<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="appml.css" />
</head>

<body>
<h1>Demo Applications</h1>

<button onclick='myOpen("Customers")'>Customers</button>
<button onclick='myOpen("Products")'>Products</button>
<button onclick='myOpen("Suppliers")'>Suppliers</button>
<button onclick='myOpen("Shippers")'>Shippers</button>
<button onclick='myOpen("Categories")'>Categories</button>
<button onclick='myOpen("Employees")'>Employees</button>
<button onclick='myOpen("Orders")'>Orders</button>
<button onclick='myOpen("OrderDetails")'>OrderDetails</button>
<br><br>

<div id="Place01"></div>

<script src="appml.js"></script>
<script>
function myOpen(pname)
{
var app_obj
app_obj=new AppML("appml.aspx","Prototypes/" + pname);
app_obj.run("Place01");
}
</script>

</body>
</html>

Show it »



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