Professional CodeIgniter, Thomas Myer
Chapter 3: A 10,000 - Foot View of CodeIgniter
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Finally, the
redirect()
function allows you to create redirects in case of different problems. In the
above example that involved the Session library, note the use of the
redirect()
function if an e - mail is
not set correctly:
if ($this-
>
session-
>
userdata(`email') != `tom@example.com'){
redirect(`admin/logout', `refresh');
}
The
refresh()
function takes two arguments. The first is the destination for the redirect, and the second
argument can be either " location " or " refresh. " Most of the time, you ' ll use the " refresh " option as the
second argument.
second argument.
Creating Models, V iews, and Controllers
At this point, you ' re ready to start working with files that relate directly to your project -- namely, the
models, views, and controllers that make up the heart of the application you ' ll be building for Claudia.
Models and Database Tables
You received an extremely brief introduction to models, views, and controllers in Chapter 1 , so in this
section, you ' ll concentrate on the database tables and models you ' ll need for Claudia ' s project. Before
you delve too deeply into constructing models for your tables, here ' s a quick reminder of the tables '
structures from Chapter 2 :
First, the categories table:
CREATE TABLE `categories' (
`id' INT NOT NULL AUTO_INCREMENT ,
`name' VARCHAR( 255 ) NOT NULL ,
`shortdesc' VARCHAR( 255 ) NOT NULL ,
`longdesc' TEXT NOT NULL ,
`status' ENUM( `active', `inactive' ) NOT NULL ,
`parentid' INT NOT NULL ,
PRIMARY KEY ( `id' )
) TYPE = MYISAM ;
Next, the products table:
CREATE TABLE `products' (
`id' INT NOT NULL AUTO_INCREMENT ,
`name' VARCHAR( 255 ) NOT NULL ,
`shortdesc' VARCHAR( 255 ) NOT NULL ,
`longdesc' TEXT NOT NULL ,
`thumbnail' VARCHAR( 255 ) NOT NULL ,
`image' VARCHAR( 255 ) NOT NULL ,
`sizes' ENUM( `s', `m', `l', `xl' ) NOT NULL ,
`colors' ENUM( `red', `blue', `green', `brown', `white', `black' ) NOT NULL ,
`grouping' VARCHAR( 16 ) NOT NULL ,
`status' ENUM( `active', `inactive' ) NOT NULL ,
`category_id' INT NOT NULL ,
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