Profile: Matthias Reichl

Problem: I have a View that shows a list of posts in a custom post type. Some of my posts have the same title. I would like to remove the duplicate titles from the View. How can I filter by unique post title?

Solution: There is no simple way to filter duplicate titles from wp-admin. You could implement your own custom code that uses the wpv_filter_query API or the wpv_filter_query_post_process API to filter out matching titles, or you can use this jQuery snippet to hide them on the frontend:

jQuery(document).ready(function(){
var strs = [];
var dupes = [];
jQuery('.wpv-loop').find('li > a').each(function(index,item){
  var txt = jQuery(item).text(); if( strs.indexOf(txt) > -1 ) { 
    dupes.push(index);
  } else{ 
    strs.push(txt);
  }
});
dupes.reverse();
for(var i=0; i<dupes.length; i++) {
  jQuery('.wpv-loop').find('li').eq(dupes[i]).remove();
}
});

Note that the duplicates may appear momentarily on the front-end until the JavaScript has been executed.

Relevant Documentation:
https://toolset.com/documentation/programmer-reference/views-filters/#wpv_filter_query
https://toolset.com/documentation/programmer-reference/views-filters/#wpv_filter_query_post_process