[Plugin: NextGEN Gallery] Removing the "add-new" link

Here is a screenshot to help explain

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I have removed the “Add new gallery” tab (and two other tabs) using a function which hooks into a filter in wp-content/plugins/nextgen-gallery/admin/addgallery.php.

I put this code in my functions.php file in my theme:

if (!current_user_can('publish_posts') ) {

	add_filter('ngg_addgallery_tabs', 'test_remove_tabs');

	function test_remove_tabs ($tabs) {
		unset($tabs['addgallery']);
		unset($tabs['zipupload']);
		unset($tabs['importfolder']);
		return $tabs;
	}

}

The if (!current_user_can('publish_posts') {} conditional restricts this to users below Author level ie Contributors. To use another level see the WordPress Roles and Capabilities.

I have hidden the “Choose gallery” select option and set it to the current user’s own, single gallery by hacking wp-content/plugins/nextgen-gallery/admin/addgallery.php. It would be better to do it without a hack but I don’t know how!

The idea is to serve a hidden field to Contributors with their gallery id drawn from the database as the value:

if (!current_user_can('publish_posts') ) {
				global $current_user, $wpdb;
				get_currentuserinfo();
				$user_gallery = $wpdb->get_var( $wpdb->prepare( "SELECT gid FROM wp_ngg_gallery WHERE name = %s", $current_user->user_login ) ); ?>
				<input name="galleryselect" id="galleryselect" type="hidden" value="<?php echo $user_gallery; ?>" />

… then Authors and above get the standard code – a select menu in a table row…

<?php } else { ?>
			<tr valign="top">
				<th scope="row"><?php _e('in to', 'nggallery') ;?></th>
				<td><select name="galleryselect" id="galleryselect">
				<option value="0" ><?php _e('Choose gallery', 'nggallery') ?></option>
				<?php
					foreach($this->gallerylist as $gallery) {

						//special case : we check if a user has this cap, then we override the second cap check
						if ( !current_user_can( 'NextGEN Upload in all galleries' ) )
							if ( !nggAdmin::can_manage_this_gallery($gallery->author) )
								continue;

						$name = ( empty($gallery->title) ) ? $gallery->name : $gallery->title;
						echo '<option value="' . $gallery->gid . '" >' . $gallery->gid . ' - ' . esc_attr( $name ) . '</option>' . "\n";
					}					?>
				</select>
				<br /><?php echo $this->maxsize; ?>
				<br /><?php if ((is_multisite()) && wpmu_enable_function('wpmuQuotaCheck')) display_space_usage(); ?></td>
			</tr>
			<?php }

I have done a similar thing to the ‘Scale images to max width…” checkbox in order to reduce the number of choices for my Contributors.