[HELP] Different themes for wordpress pages and main site

I'm creating a automated webinar plugin for wordpress and have hit a road block. What I'm trying to do is allow users to create webinars from the plugin and have their selections (bgcolor, title text, video, etc) displayed on a different theme layout than their main theme activated. However I've seemed to have hit a roadblock.

My initial thought was to have users upload several page template phps and css stylesheets into their main themes folder and have those files get the details from the plugin but I'm being told by my current developer that it can't be done that way because wp_insert_post won't allow it. Not sure why that matters but that's what I'm being told and I can't seem to find a way to make it work. Any suggestions?

 

Cutdown template?

The plugin has a settings menu users will submit their webinar details including layout info. Remember this plugin is for distribution so I need a solution that will work for the masses not just on my wordpress install.

 

I found the Gys Themed Categories plugin that does what I want to do but it only applies to post categories not pages which is what my webinar plugin creates. Any idea on how I can change this to apply to pages since they aren't associated to categories or tags? I've posted the code for the plugin's only file below:

<?php
/*
Plugin Name: GYS Themed Categories
Plugin URI: http://get-your-stuff.com/
Description: This plugin allows you to assign themes to each of your Wordpress categories.  To assign themes to your categories, just go to Manage->Categories and you'll see a dropdown of all available themes at the bottom of the form. Get more GYS Themes and Plugins at <a href="http://get-your-stuff.com/">Get-Your-Stuff.Com</a>.
Author: Mike Lopez
Version: 2.1
Author URI: http://mikelopez.info/
*/
if(!class_exists('GYSThemedCategories')){
	class GYSThemedCategories{
		function GYSThemedCategories(){
			$this->BlogCharset=get_option('blog_charset');
			$this->OptionName=strtoupper(get_class($this));
			$this->Options=get_option($this->OptionName);
		}
		function GetOption(){
			$options=func_get_args();
			$option=$this->Options;
			foreach($options AS $o){
				$option=$option[$o];
			}
			return $option;
		}
		function SetOptions(){
			$options=func_get_args();
			for($i=0;$i<count($options);$i+=2){
				$this->Options[$options[$i]]=$options[$i+1];
			}
			update_option($this->OptionName,$this->Options);
		}

		// hooks

		// CATEGORY FORM PROCESSING
			function EditCategoryForm(){
				$themes=get_themes();
				$template=$this->GetOption('CategoryThemes',$_GET['cat_ID']);
				$options='<option value="">---</option>';
				foreach($themes AS $theme){
					$selected=$theme['Template']==$template?' selected="true" ':'';
					$options.='<option value="'.$theme['Template'].'"'.$selected.'>'.__($theme['Name']).' '.$theme['Version'].'</option>';
				}
				$form=<<<STRING
				<div id="GYSThemedCategories">
					<h3>GYS Themed Categories</h3>
					<table class="form-table">
						<tbody>
							<tr class="form-field">
								<th valign="top" scope="row">Category Theme</th>
								<td><select name="GYSThemedCategories">{$options}</select></td>
							</tr>
						</tbody>
					</table>
				</div>
				<script type="text/javascript">
					//<![CDATA[
					function GYSThemedCategories(){
						try{
							var x=document.getElementById('GYSThemedCategories');
							var p=x.parentNode;
							var t=p.getElementsByTagName('p')[0];
							p.insertBefore(x,t);
						}catch(e){}
					}
					GYSThemedCategories();
					//]]>
				</script>
STRING;
				echo $form;
			}

			function SaveCategory($id){
				if(isset($_POST['GYSThemedCategories'])){
					$catthemes=$this->GetOption('CategoryThemes');
					if($_POST['GYSThemedCategories']){
						$catthemes[$id]=$_POST['GYSThemedCategories'];
					}else{
						unset($catthemes[$id]);
					}
					$this->SetOptions('CategoryThemes',$catthemes);
				}
			}

		// TEMPLATE PROCESSING
			function Template($template){
				$pid=$cid=0;
				$perms=get_option('permalink_structure');
				if($perms){
					// get current URL if permalinks are set
					$s=empty($_SERVER['HTTPS'])?'':$_SERVER['HTTPS']=='on'?'s':'';
					$protocol='http'.$s;
					$port=$_SERVER['SERVER_PORT']=='80'?'':':'.$_SERVER['SERVER_PORT'];
					$url=$protocol.'://'.$_SERVER['SERVER_NAME'].$port.$_SERVER['REQUEST_URI'];
					list($url)=explode('?',$url);
					// get Post ID from URL
					$pid=url_to_postid($url);
					// get Category ID from URL
					list($url)=explode('/page/',$url); // <- added for paging compatibility
					$cid=get_category_by_path($url,false);
					$cid=$cid->cat_ID;
				}else{
					// no permalinks so we simply check GET vars
					$pid=$_GET['p'];
					$cid=$_GET['cat'];
				}
				
				if($pid){
					// we're in a post page... so let's get the first category of this post
					list($cat)=wp_get_post_categories($pid);
				}elseif($cid){
					// we're in a category page...
					$cat=$cid;
				}
				
				if($cat){
					// we have our category ID now so let's get the theme for it...
					$theme=$this->GetOption('CategoryThemes',$cat);
					// change template if a theme is specified for this category
					if($theme)$template=$theme;
				}

				$this->Theme=$template;
				return $template;
			}
			
			function Stylesheet(){
				return $this->Theme;
			}

	}
}
if(class_exists('GYSThemedCategories') && !isset($GYSThemedCategories)){
	$GYSThemedCategories=new GYSThemedCategories(__FILE__);
}

if(isset($GYSThemedCategories)){
	add_action('edit_category_form',array(&$GYSThemedCategories,'EditCategoryForm'));
	add_action('create_category',array(&$GYSThemedCategories,'SaveCategory'));
	add_action('edit_category',array(&$GYSThemedCategories,'SaveCategory'));

	add_filter('template',array(&$GYSThemedCategories,'Template'));
	add_filter('stylesheet',array(&$GYSThemedCategories,'Stylesheet'));
}
?>

Code (markup):

 

Right but they'd be able to maintain same core theme for rest of site. How does wp let you set a theme because tried with no success?

 

so when the user setups webinar details including layouts, etc...use the code from the link and it will load the associated theme for my plugin? So for example if user current theme is Twenty Ten Theme and they install my plugin and theme in their wp setup when they create a webinar using my plugin with all details will load my plugins theme for those webinar pages instead of their current theme. And visitors will still get the Twenty Ten Theme on the users homepage. Is that correct?

 

Ok cool. Do I code it before or after wp_insert_post or does it matter?

 

ok thanks Sarah you've been a big help ... spent all week trying to figure this out ... feeling stupid for not asking sooner lol but thanks again

 

it didn't work ...

function custom_load_twenty_ten_template() {
    return 'twentyten';
}

function custom_load_twenty_ten_stylesheet() {
    return 'twentyten';
}

add_filter( 'template', 'custom_load_twenty_ten_template' );
add_filter( 'stylesheet', 'custom_load_twenty_ten_stylesheet' );

Code (markup):

Where would I place the code for wordpress to recognize it?

 

oh ok cuz I was thinking I should put this on the script for the page displays