admin - Read For Learn

Fallback media image for featured image not working in admin column

wp_get_attachment_image_src(156, ‘archive_thumbnail’)[0] will only echo the URL of the image. You need to add it to html to display the image. Try this: echo ‘<img src=”‘.wp_get_attachment_image_src(156, ‘archive_thumbnail’)[0].'”/>’; You could add the width etc as well echo ‘<img src=”‘.wp_get_attachment_image_src(156, ‘archive_thumbnail’)[0].'” width=”.wp_get_attachment_image_src(156, ‘archive_thumbnail’)[1].” height=”.wp_get_attachment_image_src(156, ‘archive_thumbnail’)[2].” />’; what happens if someone deletes this image though? Do you have … Read more

Find Memory Usage of Admin

The easist way is the plugin WP System Health, great plugin and works fine. Alternativ you build a function and hook in wp-admin; example admin_footer

Showing Post Counts of One’s (Author) Own in the admin post list

Have a look here for the solution (code needs optimizing, but it works): Help to condense/optimize some working code

Are there any filters to add additional columns to the list table on edit-comments.php?

I’m afraid that there is no easy way to get that done yet because the only hook i found is manage_comments_custom_column and that is an action hook and not a filter hook so you can’t add columns like manage_posts_columns. so as far as i can tell the long way here is the only way. but … Read more

Two admins in Users and one in the database?

That’s typically the result of users deleting accounts directly in the database. The functions that count users queries to the usermeta table to determine how many users are of a given type, when users do manual deletion they often forget to remove relational data left in the meta table, which in turn throws off the … Read more

Determining whether it’s a AJAX call from front-end or from back-end

I understand the problem you are having, I was thinking of the same thing. It is not really a problem tho, it’s more a matter of good programming design and have a good separation of front-end and back-end. Now the way I have managed to solve this is doing the following: I hope you are … Read more

front end editing using iFrames, best approach?

Using a custom template and wp_update_post you should be able to build your own edit/add post pages in your sites frontend. There are also various plugins available that attempt to do similar things. iFrames can be done, but it will need some checks in functions.php to check for a get variable and add conditional stylesheets … Read more

wp_schedule_event only when admin is visited

In your event callback function check to see if the user id the admin then run the function else just reschedule it. So using the example from the codex’s page you linked in the question it would be something like this: function my_activation() { if ( !wp_next_scheduled( ‘my_hourly_event’ ) ) { wp_schedule_event(time(), ‘hourly’, ‘my_hourly_event’); } … Read more

WordPress as a web app – always auto-save post and meta data

Set custom autosave interval Just define it in your wp-config.php file // Allow revisions define( ‘WP_POST_REVISIONS’, true); // Set number of ms define( ‘AUTOSAVE_INTERVAL’, 300 ); Note that this means that you’ll get a lot of queries and post revisions. Therefore you should also add a max. number of revisions to not fill your posts … Read more

+ More