[wp-pro] internal redirects

[Mike Schinkel]

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-Mike


On Apr 27, 2010, at 12:15 PM, capsx wrote:

> Hello all!
> 
> I'm quite new to WP, especially to wordpress plugins.
> I'm writing plugin which validate posted form (frontpage).
> 
> My style that i did that task previous is:
> 
> 1. after user submit the form, i check posted variables
> 2. if there are errors i redirect user back to the same page, before that i set in session in which there are errors
> 3. code cheks if there are errors or something else to show, and if is, it's shows
> 
> the problem starts with headers.
> in the example above i used technique with ob_start(); and ob_end_clean(); in index file, to prevent 'headers already sent' error is displaying
> 
> but in wordpress it's a bit different ...
> 
> at first time my way to complete the task was:
> 
> add_shortcode('shortcode', 'asd');
> then make function asd() which calls class and class is displaying needed information
> and in that case i can't use header('location: xxx), cause headers are already sent ...
> 
> so i made all that in a different way:
> 
> my code get slug from wp options and compare it with requested page slug
> if both are equal - function is called to show my plugin
> 
> --
> 
> $plugin_call_slug = get_option('_slug');
> $requested_uri = base_server('REQUEST_URI'); // == $_SERVER['REQUEST_URI']
> $requested_page = get_page_by_path( $requested_uri );
> 
> $requested_page = $requested_page->post_name;
> 
> if($requested_page == $plugin_call_slug)
> {
>    _function();
> }
> 
> --
> 
> and _function calls class, and that class make all what it must do
> and all output is stored in variable $return and that variable is stored in session variable $ss
> 
> and then we call the same function
> add_shortcode('shortcode', 'asd');
> only now function() is displaying only that variable from session variable $ss which hold all output from class execution
> 
> function asd()
> {
>    $a = base_session('return');
>    echo $a;
> }
> 
> ---
> 
> THE QUESTION IS - IS THIS A +/- CORRECT WAY HOW TO MAKE INTERNAL REDIRECTS, OR THERE IS OTHER LESS PAINFUL WAYS TO MAKE THOSE REDIRECTS AND OUTPUT NEEDED CONTENT... ???
> 
> ---
> 
> thx :)
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