This is probably a good case for a global variable. Just make sure it is set to an array before you add to it and also when to attempt to output the content. Convert the array to a string before adding to content. Also, make sure the meta data exists before adding to the array … Read more
Thanks to the hint with the multiple galleries plugin from Niall Campbell and thanks to this question How to Add a Custom Colum on Thickbox Media Gallery Tab? (where I got the hook admin_head-media-upload-popup from), I was able to complete the task. I’ve added an option to add a style attribute to the gallery shortcode. … Read more
The short code is actually entered into then page or post content so disabling the short code processing prevents the gallery short code from being replaced with the gallery images but it doesn’t affect the post content. The best solution is to add a new short code handler after removing the default gallery handles. Another … Read more
You can hijack the shortcode handler and set the attribute to a value of your choice. Then call the native callback for this shortcode. add_shortcode( ‘gallery’, ‘file_gallery_shortcode’ ); function file_gallery_shortcode( $atts ) { $atts[‘link’] = ‘file’; return gallery_shortcode( $atts ); }
You can override the gallery shortcode link attribute with: add_filter( ‘shortcode_atts_gallery’, function( $out ){ $out[‘link’] = ‘file’; return $out; } ); This means that even if your shortcodes are: the gallery output will always be generated as if you used link=”file”.
All your Galleries are stored a table called wp_ngg_gallery in your wordpress database. (For the sake of completeness: nextGen Gallery creates 2 more tables for albums and pictures, respectively) $gallery_ids = $wpdb->get_results( “SELECT gid FROM “.$wpdb->prefix.”ngg_gallery ORDER BY gid ASC”, ARRAY_A); fetches the IDs of all galleries into an array, ordered by ID from 1 … Read more
The source for the gallery shortcode is in wp-includes/media.php. There are a couple of hooks in there that might work for you. Without knowing exactly what you want to do, it is impossible to be more specific. If that doesn’t work then you can remove the shortcode: remove_shortcode(‘gallery’); And add another gallery shortcode with the … Read more
Customize WordPress Media Manager – Media Window
Is there a core Sortable component in Gutenberg?
I think the best thing you could do is to take a look at others people WP plugins and themes. WordPress codex has a lot of info on developing plugins using ajax: http://codex.wordpress.org/AJAX_in_Plugins For the backend side of things, I think the best approach would be to use a custom post type for the portfolio … Read more