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1. paka
   Member
   Posted 8 months ago #

   Hello,

   How can I search for a custom post in a custom tyxonomy, or how do I have to build the GET-varable.
   I've got a custom post type 'product' and a custom taxonomy 'product group'. Now I need a search form, with the posibility to search for a product in a choosen product group.
   To do so, I use this Code:
   

   <form id="searchform" action="<?php bloginfo('url'); ?>/" method="get">
   			<input id="s" maxlength="150" name="s" size="20" type="text" value="" class="txt" />
   			<input name="post_type" type="hidden" value="<?php echo $postType ?>" />
   			in <?php wp_dropdown_categories( array( 'taxonomy' => 'as_tax_product') 	); ?>
   			<input id="searchsubmit" class="btn" type="submit" value="Search" />
   			</form>

   If I search for a existing product with the right product group choosen, I get no result, but this messages:
   Notice: Trying to get property of non-object in C:\Program Files\xampp\xampp\htdocs\wp_shop\wp-includes\general-template.php on line 1652

   Notice: Trying to get property of non-object in C:\Program Files\xampp\xampp\htdocs\wp_shop\wp-includes\general-template.php on line 1653

   If I don't send the post_type, I get more Notices. this is something I don't understand, because I limit the search with:
   

   function SearchFilter($query) {
   				  if ($query->is_search) {
   				    $query->set('post_type', 'as_post_product');
   				  }
   				  return $query;
   	}
   add_filter('pre_get_posts',array($this, 'SearchFilter'));

   All of the Notices mention lines in the code, which have something to do with the category, so I suppose, I cannot query for my custom posts in this way.
   With the form above, the GET varable looks like:
   http.../?s=ball&post_type=as_post_product&cat=18.
   the SQL Query looks like:
   SELECT ..... WHERE 1=1 AND 0=1 AND...
   Everything in the query is OK only the 1=1 AND 0=1 I don't understand, and I think, the 0=1 has to do with the problem as well.

   I hope, I posted all info needed.
   Every tip would be nice.

   Greets Paka

2. paka
   Member
   Posted 8 months ago #

   Solved,
   two days I was searching for a solution, not one hour after I post here, I've found it.
   The GET has to look like: ?s=ball&post_type=as_post_product&as_tax_product=Spielzeug. Spielzeug is the name of the product group.

   So I insert a select myself:
   

   $taxProductCats = get_categories(array('taxonomy' => $taxName )) ;
   myVarDump($taxProductCats , 'liste der Produkt gruppen') ;
   ?>
   	<form id="searchform" action="<?php bloginfo('url'); ?>/" method="get">
   	<input id="s" maxlength="150" name="s" size="20" type="text" value="" class="txt" />
   	<input name="post_type" type="hidden" value="<?php echo $postType ?>" />
   	<select name="<?php echo $taxName ?>">
   	<?php
   		foreach ($taxProductCats as $prodCatobjkt){
   			echo '<option value="'.$prodCatobjkt->name.'">'.$prodCatobjkt->name.'</option>' ;
   		}
   	?>
   	</select>
   	<input id="searchsubmit" class="btn" type="submit" value="Search" />
   	</form>

   No more messages, and all searched products are found.
   Wonderfull.

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