[wp-trac] [WordPress Trac] #45938: Adding new term meta fails if column is wrapped in a conditional

WordPress Trac noreply at wordpress.org
Fri Jan 11 12:06:33 UTC 2019

#45938: Adding new term meta fails if column is wrapped in a conditional
 Reporter:  dingo_bastard  |      Owner:  (none)
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Taxonomy       |    Version:  5.0.2
 Severity:  normal         |   Keywords:  dev-feedback 2nd-opinion
  Focuses:                 |
 I have created two custom taxonomies in my custom post type, and I have
 added one callback to render new columns in the taxonomy screen. Since the
 two taxonomies share one column, but don't share another I created
 something like this:

 add_filter( 'manage_edit-tax1_columns', 'taxonomy_additional_columns' );
 add_filter( 'manage_edit-tax2_columns', 'taxonomy_additional_columns' );

 function taxonomy_additional_columns( $columns ) {
   $columns[ 'column1' ]  = esc_html__( 'Column 1', 'plugin-name' );

   if ( isset( ( get_current_screen() )->taxonomy ) && (
 get_current_screen() )->taxonomy === 'tax2' ) {
     $columns[ 'column2' ] = esc_html__( 'Column 2', 'plugin-name' );

   return $columns;

 // Render content in columns

 add_filter( 'manage_tax1_custom_column', 'render_column_content', 10, 3 );
 add_filter( 'manage_tax2_custom_column', 'render_column_content', 10, 3 );

 function render_column_content( $content, $column_name, $term_id ) {
   switch ( $column_name ) {
     case... // render content from term meta

   return $content;

 While this works, it has a strange bug that's related to the fact that the
 taxonomy terms are added using ajax and the added conditional check.

 When you create a term in the second taxonomy, the term is added but the
 second column is empty until you refresh the page.

 I haven't dug much deeper as to why this happens. I guess that the
 `get_current_screen()` isn't available in the ajax callback or something
 like this.

 The workaround is to create two separate functions for adding columns and
 duplicate the first column.

Ticket URL: <https://core.trac.wordpress.org/ticket/45938>
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