how case when then use in $wpdb->prepare





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Those code are from woo advantage search plugin.
I really confuse with this part's code



I found the case when else in google,



when case 'title', the output will be:
$relevance_array['title'] = $wpdb->prepare( "260 * count);
$relevance_array['title'] = $wpdb->prepare( "46 * count);



I don't get it what's this for.






$search_in_arr = array('title','sku','tag');

$search_term = 'pu2';

$like =  '%pu2%';

$relevance_title        = 260;

$relevance_content      = 47;

$relevance_title_like   = 46;

$relevance_content_like = 38; 



foreach ( $search_in_arr as $search_in_term ) {						



                switch ( $search_in_term ) {



                    case 'title':

                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term = '%s' ) then {$relevance_title} * count else 0 end )", $search_term );

                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term LIKE %s ) then {$relevance_title_like} * count else 0 end )", $like );

                        break;

						

						

                    case 'content':

                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );

                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );

                        break;



                    case 'excerpt':

                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );

                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );

                        break;



                    case 'category':

                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term = '%s' ) then 35 else 0 end )", $search_term );

                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term LIKE %s ) then 5 else 0 end )", $like );

                        break;



                    case 'tag':

                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term = '%s' ) then 35 else 0 end )", $search_term );

                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term LIKE %s ) then 5 else 0 end )", $like );

                        break;



                    case 'sku':

                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term = '%s' ) then 300 else 0 end )", $search_term );

                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term LIKE %s ) then 50 else 0 end )", $like );

                        break;

						

						



                }



            }








plugins woocommerce







share|improve this question





























    0















    Those code are from woo advantage search plugin.
    I really confuse with this part's code



    I found the case when else in google,



    when case 'title', the output will be:
    $relevance_array['title'] = $wpdb->prepare( "260 * count);
    $relevance_array['title'] = $wpdb->prepare( "46 * count);



    I don't get it what's this for.






    $search_in_arr = array('title','sku','tag');
    
$search_term = 'pu2';
    
$like =  '%pu2%';
    
$relevance_title        = 260;
    
$relevance_content      = 47;
    
$relevance_title_like   = 46;
    
$relevance_content_like = 38; 
    

    
foreach ( $search_in_arr as $search_in_term ) {						
    

    
                switch ( $search_in_term ) {
    

    
                    case 'title':
    
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term = '%s' ) then {$relevance_title} * count else 0 end )", $search_term );
    
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term LIKE %s ) then {$relevance_title_like} * count else 0 end )", $like );
    
                        break;
    
						
    
						
    
                    case 'content':
    
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
    
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
    
                        break;
    

    
                    case 'excerpt':
    
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
    
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
    
                        break;
    

    
                    case 'category':
    
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term = '%s' ) then 35 else 0 end )", $search_term );
    
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term LIKE %s ) then 5 else 0 end )", $like );
    
                        break;
    

    
                    case 'tag':
    
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term = '%s' ) then 35 else 0 end )", $search_term );
    
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term LIKE %s ) then 5 else 0 end )", $like );
    
                        break;
    

    
                    case 'sku':
    
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term = '%s' ) then 300 else 0 end )", $search_term );
    
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term LIKE %s ) then 50 else 0 end )", $like );
    
                        break;
    
						
    
						
    

    
                }
    

    
            }








    plugins woocommerce







    share|improve this question

























      0












      0








      0








      Those code are from woo advantage search plugin.
      I really confuse with this part's code



      I found the case when else in google,



      when case 'title', the output will be:
      $relevance_array['title'] = $wpdb->prepare( "260 * count);
      $relevance_array['title'] = $wpdb->prepare( "46 * count);



      I don't get it what's this for.






      $search_in_arr = array('title','sku','tag');
      
$search_term = 'pu2';
      
$like =  '%pu2%';
      
$relevance_title        = 260;
      
$relevance_content      = 47;
      
$relevance_title_like   = 46;
      
$relevance_content_like = 38; 
      

      
foreach ( $search_in_arr as $search_in_term ) {						
      

      
                switch ( $search_in_term ) {
      

      
                    case 'title':
      
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term = '%s' ) then {$relevance_title} * count else 0 end )", $search_term );
      
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term LIKE %s ) then {$relevance_title_like} * count else 0 end )", $like );
      
                        break;
      
						
      
						
      
                    case 'content':
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
      
                        break;
      

      
                    case 'excerpt':
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
      
                        break;
      

      
                    case 'category':
      
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term = '%s' ) then 35 else 0 end )", $search_term );
      
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term LIKE %s ) then 5 else 0 end )", $like );
      
                        break;
      

      
                    case 'tag':
      
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term = '%s' ) then 35 else 0 end )", $search_term );
      
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term LIKE %s ) then 5 else 0 end )", $like );
      
                        break;
      

      
                    case 'sku':
      
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term = '%s' ) then 300 else 0 end )", $search_term );
      
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term LIKE %s ) then 50 else 0 end )", $like );
      
                        break;
      
						
      
						
      

      
                }
      

      
            }








      plugins woocommerce







      share|improve this question














      Those code are from woo advantage search plugin.
      I really confuse with this part's code



      I found the case when else in google,



      when case 'title', the output will be:
      $relevance_array['title'] = $wpdb->prepare( "260 * count);
      $relevance_array['title'] = $wpdb->prepare( "46 * count);



      I don't get it what's this for.






      $search_in_arr = array('title','sku','tag');
      
$search_term = 'pu2';
      
$like =  '%pu2%';
      
$relevance_title        = 260;
      
$relevance_content      = 47;
      
$relevance_title_like   = 46;
      
$relevance_content_like = 38; 
      

      
foreach ( $search_in_arr as $search_in_term ) {						
      

      
                switch ( $search_in_term ) {
      

      
                    case 'title':
      
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term = '%s' ) then {$relevance_title} * count else 0 end )", $search_term );
      
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term LIKE %s ) then {$relevance_title_like} * count else 0 end )", $like );
      
                        break;
      
						
      
						
      
                    case 'content':
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
      
                        break;
      

      
                    case 'excerpt':
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
      
                        break;
      

      
                    case 'category':
      
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term = '%s' ) then 35 else 0 end )", $search_term );
      
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term LIKE %s ) then 5 else 0 end )", $like );
      
                        break;
      

      
                    case 'tag':
      
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term = '%s' ) then 35 else 0 end )", $search_term );
      
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term LIKE %s ) then 5 else 0 end )", $like );
      
                        break;
      

      
                    case 'sku':
      
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term = '%s' ) then 300 else 0 end )", $search_term );
      
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term LIKE %s ) then 50 else 0 end )", $like );
      
                        break;
      
						
      
						
      

      
                }
      

      
            }








      $search_in_arr = array('title','sku','tag');
      
$search_term = 'pu2';
      
$like =  '%pu2%';
      
$relevance_title        = 260;
      
$relevance_content      = 47;
      
$relevance_title_like   = 46;
      
$relevance_content_like = 38; 
      

      
foreach ( $search_in_arr as $search_in_term ) {						
      

      
                switch ( $search_in_term ) {
      

      
                    case 'title':
      
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term = '%s' ) then {$relevance_title} * count else 0 end )", $search_term );
      
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term LIKE %s ) then {$relevance_title_like} * count else 0 end )", $like );
      
                        break;
      
						
      
						
      
                    case 'content':
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
      
                        break;
      

      
                    case 'excerpt':
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
      
                        break;
      

      
                    case 'category':
      
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term = '%s' ) then 35 else 0 end )", $search_term );
      
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term LIKE %s ) then 5 else 0 end )", $like );
      
                        break;
      

      
                    case 'tag':
      
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term = '%s' ) then 35 else 0 end )", $search_term );
      
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term LIKE %s ) then 5 else 0 end )", $like );
      
                        break;
      

      
                    case 'sku':
      
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term = '%s' ) then 300 else 0 end )", $search_term );
      
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term LIKE %s ) then 50 else 0 end )", $like );
      
                        break;
      
						
      
						
      

      
                }
      

      
            }





      $search_in_arr = array('title','sku','tag');
      
$search_term = 'pu2';
      
$like =  '%pu2%';
      
$relevance_title        = 260;
      
$relevance_content      = 47;
      
$relevance_title_like   = 46;
      
$relevance_content_like = 38; 
      

      
foreach ( $search_in_arr as $search_in_term ) {						
      

      
                switch ( $search_in_term ) {
      

      
                    case 'title':
      
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term = '%s' ) then {$relevance_title} * count else 0 end )", $search_term );
      
                        $relevance_array['title'] = $wpdb->prepare( "( case when ( term_source = 'title' AND term LIKE %s ) then {$relevance_title_like} * count else 0 end )", $like );
      
                        break;
      
						
      
						
      
                    case 'content':
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'content' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
      
                        break;
      

      
                    case 'excerpt':
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term = '%s' ) then {$relevance_content} * count else 0 end )", $search_term );
      
                        $relevance_array['content'] = $wpdb->prepare( "( case when ( term_source = 'excerpt' AND term LIKE %s ) then {$relevance_content_like} * count else 0 end )", $like );
      
                        break;
      

      
                    case 'category':
      
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term = '%s' ) then 35 else 0 end )", $search_term );
      
                        $relevance_array['category'] = $wpdb->prepare( "( case when ( term_source = 'category' AND term LIKE %s ) then 5 else 0 end )", $like );
      
                        break;
      

      
                    case 'tag':
      
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term = '%s' ) then 35 else 0 end )", $search_term );
      
                        $relevance_array['tag'] = $wpdb->prepare( "( case when ( term_source = 'tag' AND term LIKE %s ) then 5 else 0 end )", $like );
      
                        break;
      

      
                    case 'sku':
      
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term = '%s' ) then 300 else 0 end )", $search_term );
      
                        $relevance_array['sku'] = $wpdb->prepare( "( case when ( term_source = 'sku' AND term LIKE %s ) then 50 else 0 end )", $like );
      
                        break;
      
						
      
						
      

      
                }
      

      
            }





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