AOLserver and Tcl Crash Course
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Draft Outline
- ADP Pages
- Hello <Yourname> - Simple page, user submits form, displays name
- DOSSY: Create this example with very simple Tcl.
- Hello <Yourname> - Simple page, user submits form, displays name
# hello-world.adp
<% set name [ns_queryget name "world"] %>
<html>
<head>
<title>Hello <%= [ns_quotehtml $name] %>!</title>
</head>
<body>
Hello <%= [ns_quotehtml $name] %>!
<form>
Name: <input name="name" value="<%= [ns_quotehtml $name] %>">
<input type="submit" value="Go">
</form> </body> </html>
# hello-world.tcl
set form [ns_getform]
set name [string trim [ns_set get $form name]]
if {$name eq ""} {
set name "world"
}
ns_return 200 text/html "<html>
<head><title>Hello [ns_quotehtml $name]!</title></head>
<body>
Hello [ns_quotehtml $name]!
<form action='hello-world.tcl' method='post'>
Name: <input name='name' value='[ns_quotehtml $name]'>
<input type='submit'>
</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
- Explain Minimalist Syntax
- 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?
