Add More bulk actions to the link manager

[teraom]

Currently, the link manager supports only one bulk action, which is delete.
If there are a lot of links, making links visible and invisible is now a tedious process. A bulk action for "make visible" and "make hidden" would be a good enhancement, IMHO.

An even better enhancement would be to transform links into a custom post type.

That said, it's pretty easy for plugins to add additional bulk actions in WP 3.1.

[PATCH] Add features to bulk show/hide links

This patch seems like a good first step.

Coding standards:

• Needs more spaces, especially in wp-admin/link.php and in link-manager.php.
• Use single quotes rather than double quotes when able, in the list table code.
• In link-manager.php, convert the $doaction if/elseif/elseif to a switch with breaks.

Code itself:

• Use esc_url( wp_nonce_url( admin_url() ) ), rather than wp_nonce_url() and &. esc_url() will do that conversion for you, and further, wp_nonce_url() will reverse & anyway, so it's ending up unescaped in the existing patch.
• Namespace the nonces. Rather than show_$id, hide_$id, consider show-bookmark_$id and hide-bookmark_$id.
• Only add $actionsshow? if 'N' == $link->link_visible, and only add $actionshide? if Y' == $link->link_visible. (Note this is not a simple if/else construct, but rather if/elseif, as I think a plugin could override link_visible to be another value. So better to be specific that these actions only work for the boolean values.)

Translations:

• Translators will probably want these links to be contextualized. So _x( 'Show', 'link' ), and _x( 'Hide', 'link' ). We don't seem to be very good at contextualizing action links here and elsewhere though, so you can skip this step.

Ultimately, links are such a little-used feature that this patch will never be a priority. But once we branch off 3.3 and trunk becomes 3.4, if someone drops a comment I will come by and handle. (Assuming the patch is updated.)

[PATCH] Add features to bulk show/hide links

Updated as per suggestions - thanks nacin.