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1. martiniboy
   Member
   Posted 1 month ago #

   Hi

   I hope that someone can help, I am creating a CMS and I have a page called Sectors and within Sectors I have sub-pages called Education, Healthcare, Business and Public each with their own background image controlled through css. With these pages I have linked them to categories so when the education page is selected all the categories within education show in the sidebar. What I am having trouble with is when the sidebar link is clicked it goes through to the category.php page but I would like to have the background for each appropriate page, ie. education posts with the education background, catering posts with the catering background etc.

   I have used this code but does not work so has any one any idea why not.
   

   <div id="postcontent"
   	  <?php
   if (in_category('education'))
   {echo 'class="educationcontent"';}
   if (in_category('healthcare'))
   {echo 'class="healthcarecontent"';}
   if (in_category('business & industry'))
   {echo 'class="businesscontent"';}
   if (in_category('public sector'))
   {echo 'class="publiccontent"';}
   ?>>

   I thought that this meant :IF in the category of education use this class of educationcontent, catering uses cateringcontent etc.. Have I made an error in the code or this is not for this.

2. syncbox
   Member
   Posted 1 month ago #

   I think you have to use elseif and else in there rather than all those "ifs"... without going into what it is you are trying to do, did you try:

   <?php
   if (in_category('education')) {
   {echo 'class="educationcontent"';}
   elseif (in_category('healthcare')) {
   {echo 'class="healthcarecontent"';}
   elseif (in_category('business & industry')) {
   {echo 'class="businesscontent"';}
   elseif (in_category('public sector')) {
   {echo 'class="publiccontent"';}
   else {//the default action if not any of the above }
   ?>

   I'm no php programmer, but...

   and I'd move the php inward, since you KNOW you want a class written, there's no need to put that part into the code (saving bytes) because you could write
   <div class="<?php /*all the logic above*/ ?>">

   just my two. hth, and good luck with it!

3. cais
   Member
   Posted 1 month ago #

   I might suggest something along these lines ...

   First, make use of category templates (if you are not), here is some information on them: http://codex.wordpress.org/Category_Templates

   Also, be sure to use the body_class() function, here is some reading on it: http://www.nathanrice.net/blog/wordpress-2-8-and-the-body_class-function/

   Combined you will have a specific template being called for each category, and the body_class() function will provide a specific class you will be able to style.

   Without a link to your blog it appears from your sample code above you are adding your "category class" to the post, not the page itself, whereas the body_class() function provides classes that encompass the entire page ... especially useful for "page" specific backgrounds.

   I do not believe you will even need to worry about using the if statements you are trying to implement (above).

   Hope this helps some.

4. martiniboy
   Member
   Posted 1 month ago #

   Thanks for replying after all that my initial code worked I just needed to alter a part in the wordpress dashboard. Thanks Cais now I know about the body_class_function it will make future projects easier.
   Except now it has brought me to another problem - when I click on the link on the sidebar it directs me to the page and posts that I want except the sidebar is now empty. Here is the code which I have used in the sidebar.php
   

   <ul><?php
   		if (get_post_meta($post->ID,'categorynumber', true)) {
           $catid = get_post_meta($post->ID,'categorynumber', true);
   		wp_list_categories("child_of=" .$catid . "&title_li=");
   		}
   ?>
   </ul>

   but now I want to tell it that if it is on a page which is a child category still display the categories of the parent.
   I tried using at the end of the above code
   

   else {
   	if (in_category ('16,10,5,18'))
   	 wp_list_categories ('parent_of=' .$catid . "&title_li=" );

   but does not work,
   I hope what I am trying to do makes sense
   if not let me know I will explain in more detail
   }

5. cais
   Member
   Posted 1 month ago #

   Here is the codex page for wp_list_categories: http://codex.wordpress.org/Template_Tags/wp_list_categories ... there is no 'parent_of' parameter.

   You might also consider custom sidebar templates in your category template files. Here is another link into the codex: http://codex.wordpress.org/Function_Reference/get_sidebar

   Hope that helps to sort things out.

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