Difference between revisions of "AOLserver and Tcl Crash Course"

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(fixup wiki markup)
m (outdent code examples)
 
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<pre>
 
<pre>
  <% set name [ns_queryget name "world"] %>
+
<% set name [ns_queryget name "world"] %>
  <html>
+
<html>
  <head>
+
<head>
    <title>Hello <%= [ns_quotehtml $name] %>!</title>
+
  <title>Hello <%= [ns_quotehtml $name] %>!</title>
  </head>
+
</head>
  <body>
+
<body>
    <p>Hello <%= [ns_quotehtml $name] %>!</p>
+
  <p>Hello <%= [ns_quotehtml $name] %>!</p>
    <form>
+
  <form>
    <p>Name: <input name="name" value="<%= [ns_quotehtml $name] %>"></p>
+
  <p>Name: <input name="name" value="<%= [ns_quotehtml $name] %>"></p>
    <p><input type="submit" value="Go"></p>
+
  <p><input type="submit" value="Go"></p>
    </form>
+
  </form>
  </body>
+
</body>
  </html>
+
</html>
 
</pre>
 
</pre>
  
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<pre>
 
<pre>
  set name [ns_queryget name "world"]
+
set name [ns_queryget name "world"]
  ns_return 200 text/html "<html>
+
ns_return 200 text/html "<html>
      <head>
+
  <head>
        <title>Hello [ns_quotehtml $name]!</title>
+
    <title>Hello [ns_quotehtml $name]!</title>
      </head>
+
  </head>
      <body>
+
  <body>
        <p>Hello [ns_quotehtml $name]!</p>
+
    <p>Hello [ns_quotehtml $name]!</p>
        <form>
+
    <form>
        <p>Name: <input name="name" value="[ns_quotehtml $name]"></p>
+
    <p>Name: <input name="name" value="[ns_quotehtml $name]"></p>
        <p><input type="submit" value="Go"></p>
+
    <p><input type="submit" value="Go"></p>
        </form>
+
    </form>
      </body>
+
  </body>
      </html>"
+
  </html>"
 
</pre>
 
</pre>
  

Latest revision as of 03:09, 16 June 2007

The following is a working draft in progress for an introductory guide to AOLserver and Tcl.

ADP Pages

Hello <Yourname> - Simple page, user submits form, displays name

ADP example

hello-world.adp:

<% set name [ns_queryget name "world"] %>
<html>
<head>
  <title>Hello <%= [ns_quotehtml $name] %>!</title>
</head>
<body>
  <p>Hello <%= [ns_quotehtml $name] %>!</p>
  <form>
  <p>Name: <input name="name" value="<%= [ns_quotehtml $name] %>"></p>
  <p><input type="submit" value="Go"></p>
  </form>
</body>
</html>

Tcl example

hello-world.tcl:

set name [ns_queryget name "world"]
ns_return 200 text/html "<html>
  <head>
    <title>Hello [ns_quotehtml $name]!</title>
  </head>
  <body>
    <p>Hello [ns_quotehtml $name]!</p>
    <form>
    <p>Name: <input name="name" value="[ns_quotehtml $name]"></p>
    <p><input type="submit" value="Go"></p>
    </form>
  </body>
  </html>"

Tcl Basics

    • Explain Minimalist Syntax
      • Commands, Subcommands (Evaluated and Non-Evaluated)
      • Working with variables set, expr
    • Control Structures
      • if, while, etc.
      • procedures

Fetching GET and POST

    • Including / Referring to other pages
    • Controlling Output
    • Databases
      • Defining the connection from as a pool in the config.tcl
      • Selecting from the pool
      • Executing Queries, Retrieving Values

Questions

  • Where does ADP excel?
  • What practices should PHP, ASP, JSP developers stop doing?
  • How can one use Tcl to write very concise and readable code?
  • How does one efficiently separate pages into MVC components if the wanted?
  • How and why should one write a domain specific sublanguage?