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1. manifestcreative
   Member
   Posted 8 months ago #

   I have a layout for http://www.theesperanzacenter.org that I'm working on. Based upon reading in the Codex and other forum posts, I came up with the following function that I had hoped would allow me to have a unique photo for each parent category. However, when I visit the archives of a sub-category, I get the following error:

   Catchable fatal error: Object of class WP_Error could not be converted to string in /home/esperanz/public_html/wp-content/themes/thesis/custom/custom_functions.php on line 66

   Line 66 of my code refers to creating the photo name plus the category_nicename (ie photo-category-nice-name.jpg).

   This is the function that I'm using:
   

   function image_header () {
   	if (is_home() || is_front_page()) {
   		$header_photo = "photo-home";
   	}
   	elseif (is_search()) {
   		$header_photo = "photo-search";
   	}
   	elseif (is_category() || is_archive() || is_single()) {
   			$cat = get_the_category();
   			$category = get_category_parents($cat[0]->category_parent, false, '', true);
   			$header_photo = "photo-".$category."";
   	} else {
   		$cat = get_the_category();
   		$category = get_category_parents($cat[0]->category_parent, false, '', true);
   		$header_photo = "photo-".$category."";
   	}
   
   	$header_photo_url = "".get_bloginfo('template_url')."/custom/images/category-headers/".$header_photo.".jpg";
   
   echo ("<img src='."$header_photo_url".'>");

   I believe that the function that I've written is only pulling the current (child) category, and not the top level category.

   Can anyone offer me some advice?

2. manifestcreative
   Member
   Posted 8 months ago #

   Can anyone give me a little WordPress love on this stumper?

3. manifestcreative
   Member
   Posted 8 months ago #

   I'm answering as many noob questions as I can in hopes of someone taking a look!

4. saki_kawa
   Member
   Posted 7 months ago #

   Hi!
   I'm having a similar problem, I think it's get_category_parents(), its output is an object instead a string, I'm looking for a solution too.
   Do you find anything about?
   If not, when I'll find the answer I'll write you here.

5. saki_kawa
   Member
   Posted 7 months ago #

   I have read again your code and I don't think we have the same problem.
   Try var_dump($category), to see what is it, or var_dump(any other var), so you can find where is the problem.

6. dremation
   Member
   Posted 7 months ago #

   @manitfestcreative, you figure it out yet?

7. mwilliams
   Member
   Posted 3 weeks ago #

   i am having the same problem and it is caused by incompability of 2.7 and get_category_parents. any solution?

8. mwilliams
   Member
   Posted 3 weeks ago #

   oh I found it, insert this
   $category = get_the_category();
   $cat = $category[0]->cat_ID;

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