3 * WordPress Bookmark Administration API
6 * @subpackage Administration
10 * Add a link to using values provided in $_POST.
14 * @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
21 * Update or insert a link using values provided in $_POST.
25 * @param int $link_id Optional. ID of the link to edit.
26 * @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
28 function edit_link( $link_id = 0 ) {
29 if ( !current_user_can( 'manage_links' ) )
30 wp_die( __( 'Cheatin’ uh?' ) );
32 $_POST['link_url'] = esc_html( $_POST['link_url'] );
33 $_POST['link_url'] = esc_url($_POST['link_url']);
34 $_POST['link_name'] = esc_html( $_POST['link_name'] );
35 $_POST['link_image'] = esc_html( $_POST['link_image'] );
36 $_POST['link_rss'] = esc_url($_POST['link_rss']);
37 if ( !isset($_POST['link_visible']) || 'N' != $_POST['link_visible'] )
38 $_POST['link_visible'] = 'Y';
40 if ( !empty( $link_id ) ) {
41 $_POST['link_id'] = $link_id;
42 return wp_update_link( $_POST );
44 return wp_insert_link( $_POST );
49 * Retrieve the default link for editing.
53 * @return object Default link
55 function get_default_link_to_edit() {
56 if ( isset( $_GET['linkurl'] ) )
57 $link->link_url = esc_url( $_GET['linkurl'] );
61 if ( isset( $_GET['name'] ) )
62 $link->link_name = esc_attr( $_GET['name'] );
64 $link->link_name = '';
66 $link->link_visible = 'Y';
72 * Delete link specified from database
76 * @param int $link_id ID of the link to delete
79 function wp_delete_link( $link_id ) {
82 do_action( 'delete_link', $link_id );
84 wp_delete_object_term_relationships( $link_id, 'link_category' );
86 $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->links WHERE link_id = %d", $link_id ) );
88 do_action( 'deleted_link', $link_id );
90 clean_bookmark_cache( $link_id );
96 * Retrieves the link categories associated with the link specified.
100 * @param int $link_id Link ID to look up
101 * @return array The requested link's categories
103 function wp_get_link_cats( $link_id = 0 ) {
105 $cats = wp_get_object_terms( $link_id, 'link_category', array('fields' => 'ids') );
107 return array_unique( $cats );
111 * Retrieve link data based on ID.
115 * @param int $link_id ID of link to retrieve
116 * @return object Link for editing
118 function get_link_to_edit( $link_id ) {
119 return get_bookmark( $link_id, OBJECT, 'edit' );
123 * This function inserts/updates links into/in the database.
127 * @param array $linkdata Elements that make up the link to insert.
128 * @param bool $wp_error Optional. If true return WP_Error object on failure.
129 * @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
131 function wp_insert_link( $linkdata, $wp_error = false ) {
134 $defaults = array( 'link_id' => 0, 'link_name' => '', 'link_url' => '', 'link_rating' => 0 );
136 $linkdata = wp_parse_args( $linkdata, $defaults );
137 $linkdata = sanitize_bookmark( $linkdata, 'db' );
139 extract( stripslashes_deep( $linkdata ), EXTR_SKIP );
143 if ( !empty( $link_id ) )
146 if ( trim( $link_name ) == '' ) {
147 if ( trim( $link_url ) != '' ) {
148 $link_name = $link_url;
154 if ( trim( $link_url ) == '' )
157 if ( empty( $link_rating ) )
160 if ( empty( $link_image ) )
163 if ( empty( $link_target ) )
166 if ( empty( $link_visible ) )
169 if ( empty( $link_owner ) )
170 $link_owner = get_current_user_id();
172 if ( empty( $link_notes ) )
175 if ( empty( $link_description ) )
176 $link_description = '';
178 if ( empty( $link_rss ) )
181 if ( empty( $link_rel ) )
184 // Make sure we set a valid category
185 if ( ! isset( $link_category ) || 0 == count( $link_category ) || !is_array( $link_category ) ) {
186 $link_category = array( get_option( 'default_link_category' ) );
190 if ( false === $wpdb->update( $wpdb->links, compact('link_url', 'link_name', 'link_image', 'link_target', 'link_description', 'link_visible', 'link_rating', 'link_rel', 'link_notes', 'link_rss'), compact('link_id') ) ) {
192 return new WP_Error( 'db_update_error', __( 'Could not update link in the database' ), $wpdb->last_error );
197 if ( false === $wpdb->insert( $wpdb->links, compact('link_url', 'link_name', 'link_image', 'link_target', 'link_description', 'link_visible', 'link_owner', 'link_rating', 'link_rel', 'link_notes', 'link_rss') ) ) {
199 return new WP_Error( 'db_insert_error', __( 'Could not insert link into the database' ), $wpdb->last_error );
203 $link_id = (int) $wpdb->insert_id;
206 wp_set_link_cats( $link_id, $link_category );
209 do_action( 'edit_link', $link_id );
211 do_action( 'add_link', $link_id );
213 clean_bookmark_cache( $link_id );
219 * Update link with the specified link categories.
223 * @param int $link_id ID of link to update
224 * @param array $link_categories Array of categories to
226 function wp_set_link_cats( $link_id = 0, $link_categories = array() ) {
227 // If $link_categories isn't already an array, make it one:
228 if ( !is_array( $link_categories ) || 0 == count( $link_categories ) )
229 $link_categories = array( get_option( 'default_link_category' ) );
231 $link_categories = array_map( 'intval', $link_categories );
232 $link_categories = array_unique( $link_categories );
234 wp_set_object_terms( $link_id, $link_categories, 'link_category' );
236 clean_bookmark_cache( $link_id );
240 * Update a link in the database.
244 * @param array $linkdata Link data to update.
245 * @return int|WP_Error Value 0 or WP_Error on failure. The updated link ID on success.
247 function wp_update_link( $linkdata ) {
248 $link_id = (int) $linkdata['link_id'];
250 $link = get_bookmark( $link_id, ARRAY_A );
252 // Escape data pulled from DB.
253 $link = add_magic_quotes( $link );
255 // Passed link category list overwrites existing category list if not empty.
256 if ( isset( $linkdata['link_category'] ) && is_array( $linkdata['link_category'] )
257 && 0 != count( $linkdata['link_category'] ) )
258 $link_cats = $linkdata['link_category'];
260 $link_cats = $link['link_category'];
262 // Merge old and new fields with new fields overwriting old ones.
263 $linkdata = array_merge( $link, $linkdata );
264 $linkdata['link_category'] = $link_cats;
266 return wp_insert_link( $linkdata );