update_gallery_tab( array $tabs )

Adds the gallery tab back to the tabs array if post has image attachments

Parameters

$tabs

(Required)

Return

(array) $tabs with gallery if post has image attachment

Source

File: wp-admin/includes/media.php 

function update_gallery_tab($tabs) {
	global $wpdb;

	if ( !isset($_REQUEST['post_id']) ) {
		unset($tabs['gallery']);
		return $tabs;
	}

	$post_id = intval($_REQUEST['post_id']);

	if ( $post_id )
		$attachments = intval( $wpdb->get_var( $wpdb->prepare( "SELECT count(*) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent = %d", $post_id ) ) );

	if ( empty($attachments) ) {
		unset($tabs['gallery']);
		return $tabs;
	}

	$tabs['gallery'] = sprintf(__('Gallery (%s)'), "<span id='attachments-count'>$attachments</span>");

	return $tabs;
}

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Related

Uses

Uses
Uses Description
wp-includes/l10n.php: __()

Retrieve the translation of $text.
wp-includes/wp-db.php: wpdb::get_var()

Retrieve one variable from the database.
wp-includes/wp-db.php: wpdb::prepare()

Prepares a SQL query for safe execution. Uses sprintf()-like syntax.

Changelog

Changelog
Version Description
WP-2.5.0 Introduced.