*
* @package WordPress
* @subpackage Administration
+ * @since 2.3.0
*/
/**
* Determine if a comment exists based on author and date.
*
+ * For best performance, use `$timezone = 'gmt'`, which queries a field that is properly indexed. The default value
+ * for `$timezone` is 'blog' for legacy reasons.
+ *
* @since 2.0.0
+ * @since 4.4.0 Added the `$timezone` parameter.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @param string $comment_author Author of the comment
- * @param string $comment_date Date of the comment
+ * @param string $comment_author Author of the comment.
+ * @param string $comment_date Date of the comment.
+ * @param string $timezone Timezone. Accepts 'blog' or 'gmt'. Default 'blog'.
+ *
* @return mixed Comment post ID on success.
*/
-function comment_exists($comment_author, $comment_date) {
+function comment_exists( $comment_author, $comment_date, $timezone = 'blog' ) {
global $wpdb;
- $comment_author = stripslashes($comment_author);
- $comment_date = stripslashes($comment_date);
+ $date_field = 'comment_date';
+ if ( 'gmt' === $timezone ) {
+ $date_field = 'comment_date_gmt';
+ }
return $wpdb->get_var( $wpdb->prepare("SELECT comment_post_ID FROM $wpdb->comments
- WHERE comment_author = %s AND comment_date = %s", $comment_author, $comment_date) );
+ WHERE comment_author = %s AND $date_field = %s",
+ stripslashes( $comment_author ),
+ stripslashes( $comment_date )
+ ) );
}
/**
* @since 2.0.0
*/
function edit_comment() {
-
if ( ! current_user_can( 'edit_comment', (int) $_POST['comment_ID'] ) )
- wp_die ( __( 'You are not allowed to edit comments on this post.' ) );
+ wp_die ( __( 'Sorry, you are not allowed to edit comments on this post.' ) );
if ( isset( $_POST['newcomment_author'] ) )
$_POST['comment_author'] = $_POST['newcomment_author'];
}
/**
- * Returns a comment object based on comment ID.
+ * Returns a WP_Comment object based on comment ID.
*
* @since 2.0.0
*
* @param int $id ID of comment to retrieve.
- * @return bool|object Comment if found. False on failure.
+ * @return WP_Comment|false Comment if found. False on failure.
*/
function get_comment_to_edit( $id ) {
if ( !$comment = get_comment($id) )
$comment->comment_content = format_to_edit( $comment->comment_content );
/**
- * Filter the comment content before editing.
+ * Filters the comment content before editing.
*
* @since 2.0.0
*
* Add avatars to relevant places in admin, or try to.
*
* @since 2.5.0
- * @uses $comment
*
* @param string $name User name.
* @return string Avatar with Admin name.
*/
function floated_admin_avatar( $name ) {
- global $comment;
- $avatar = get_avatar( $comment, 32, 'mystery' );
+ $avatar = get_avatar( get_comment(), 32, 'mystery' );
return "$avatar $name";
}
+/**
+ * @since 2.7.0
+ */
function enqueue_comment_hotkeys_js() {
if ( 'true' == get_user_option( 'comment_shortcuts' ) )
wp_enqueue_script( 'jquery-table-hotkeys' );
}
+
+/**
+ * Display error message at bottom of comments.
+ *
+ * @param string $msg Error Message. Assumed to contain HTML and be sanitized.
+ */
+function comment_footer_die( $msg ) {
+ echo "<div class='wrap'><p>$msg</p></div>";
+ include( ABSPATH . 'wp-admin/admin-footer.php' );
+ die;
+}
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