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/wordpress3.4.2/wp-admin/includes/bookmark.php

https://bitbucket.org/ch3tag/mothers
PHP | 268 lines | 134 code | 52 blank | 82 comment | 43 complexity | 34f51f7037be102a2a168817b79cfc91 MD5 | raw file
  1<?php
  2/**
  3 * WordPress Bookmark Administration API
  4 *
  5 * @package WordPress
  6 * @subpackage Administration
  7 */
  8
  9/**
 10 * Add a link to using values provided in $_POST.
 11 *
 12 * @since 2.0.0
 13 *
 14 * @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
 15 */
 16function add_link() {
 17	return edit_link();
 18}
 19
 20/**
 21 * Update or insert a link using values provided in $_POST.
 22 *
 23 * @since 2.0.0
 24 *
 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.
 27 */
 28function edit_link( $link_id = 0 ) {
 29	if ( !current_user_can( 'manage_links' ) )
 30		wp_die( __( 'Cheatin&#8217; uh?' ) );
 31
 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';
 39
 40	if ( !empty( $link_id ) ) {
 41		$_POST['link_id'] = $link_id;
 42		return wp_update_link( $_POST );
 43	} else {
 44		return wp_insert_link( $_POST );
 45	}
 46}
 47
 48/**
 49 * Retrieve the default link for editing.
 50 *
 51 * @since 2.0.0
 52 *
 53 * @return object Default link
 54 */
 55function get_default_link_to_edit() {
 56	$link = new stdClass;
 57	if ( isset( $_GET['linkurl'] ) )
 58		$link->link_url = esc_url( $_GET['linkurl'] );
 59	else
 60		$link->link_url = '';
 61
 62	if ( isset( $_GET['name'] ) )
 63		$link->link_name = esc_attr( $_GET['name'] );
 64	else
 65		$link->link_name = '';
 66
 67	$link->link_visible = 'Y';
 68
 69	return $link;
 70}
 71
 72/**
 73 * Delete link specified from database
 74 *
 75 * @since 2.0.0
 76 *
 77 * @param int $link_id ID of the link to delete
 78 * @return bool True
 79 */
 80function wp_delete_link( $link_id ) {
 81	global $wpdb;
 82
 83	do_action( 'delete_link', $link_id );
 84
 85	wp_delete_object_term_relationships( $link_id, 'link_category' );
 86
 87	$wpdb->delete( $wpdb->links, array( 'link_id' => $link_id ) );
 88
 89	do_action( 'deleted_link', $link_id );
 90
 91	clean_bookmark_cache( $link_id );
 92
 93	return true;
 94}
 95
 96/**
 97 * Retrieves the link categories associated with the link specified.
 98 *
 99 * @since 2.1.0
100 *
101 * @param int $link_id Link ID to look up
102 * @return array The requested link's categories
103 */
104function wp_get_link_cats( $link_id = 0 ) {
105
106	$cats = wp_get_object_terms( $link_id, 'link_category', array('fields' => 'ids') );
107
108	return array_unique( $cats );
109}
110
111/**
112 * Retrieve link data based on ID.
113 *
114 * @since 2.0.0
115 *
116 * @param int $link_id ID of link to retrieve
117 * @return object Link for editing
118 */
119function get_link_to_edit( $link_id ) {
120	return get_bookmark( $link_id, OBJECT, 'edit' );
121}
122
123/**
124 * This function inserts/updates links into/in the database.
125 *
126 * @since 2.0.0
127 *
128 * @param array $linkdata Elements that make up the link to insert.
129 * @param bool $wp_error Optional. If true return WP_Error object on failure.
130 * @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
131 */
132function wp_insert_link( $linkdata, $wp_error = false ) {
133	global $wpdb;
134
135	$defaults = array( 'link_id' => 0, 'link_name' => '', 'link_url' => '', 'link_rating' => 0 );
136
137	$linkdata = wp_parse_args( $linkdata, $defaults );
138	$linkdata = sanitize_bookmark( $linkdata, 'db' );
139
140	extract( stripslashes_deep( $linkdata ), EXTR_SKIP );
141
142	$update = false;
143
144	if ( !empty( $link_id ) )
145		$update = true;
146
147	if ( trim( $link_name ) == '' ) {
148		if ( trim( $link_url ) != '' ) {
149			$link_name = $link_url;
150		} else {
151			return 0;
152		}
153	}
154
155	if ( trim( $link_url ) == '' )
156		return 0;
157
158	if ( empty( $link_rating ) )
159		$link_rating = 0;
160
161	if ( empty( $link_image ) )
162		$link_image = '';
163
164	if ( empty( $link_target ) )
165		$link_target = '';
166
167	if ( empty( $link_visible ) )
168		$link_visible = 'Y';
169
170	if ( empty( $link_owner ) )
171		$link_owner = get_current_user_id();
172
173	if ( empty( $link_notes ) )
174		$link_notes = '';
175
176	if ( empty( $link_description ) )
177		$link_description = '';
178
179	if ( empty( $link_rss ) )
180		$link_rss = '';
181
182	if ( empty( $link_rel ) )
183		$link_rel = '';
184
185	// Make sure we set a valid category
186	if ( ! isset( $link_category ) || 0 == count( $link_category ) || !is_array( $link_category ) ) {
187		$link_category = array( get_option( 'default_link_category' ) );
188	}
189
190	if ( $update ) {
191		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			if ( $wp_error )
193				return new WP_Error( 'db_update_error', __( 'Could not update link in the database' ), $wpdb->last_error );
194			else
195				return 0;
196		}
197	} else {
198		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			if ( $wp_error )
200				return new WP_Error( 'db_insert_error', __( 'Could not insert link into the database' ), $wpdb->last_error );
201			else
202				return 0;
203		}
204		$link_id = (int) $wpdb->insert_id;
205	}
206
207	wp_set_link_cats( $link_id, $link_category );
208
209	if ( $update )
210		do_action( 'edit_link', $link_id );
211	else
212		do_action( 'add_link', $link_id );
213
214	clean_bookmark_cache( $link_id );
215
216	return $link_id;
217}
218
219/**
220 * Update link with the specified link categories.
221 *
222 * @since 2.1.0
223 *
224 * @param int $link_id ID of link to update
225 * @param array $link_categories Array of categories to
226 */
227function wp_set_link_cats( $link_id = 0, $link_categories = array() ) {
228	// If $link_categories isn't already an array, make it one:
229	if ( !is_array( $link_categories ) || 0 == count( $link_categories ) )
230		$link_categories = array( get_option( 'default_link_category' ) );
231
232	$link_categories = array_map( 'intval', $link_categories );
233	$link_categories = array_unique( $link_categories );
234
235	wp_set_object_terms( $link_id, $link_categories, 'link_category' );
236
237	clean_bookmark_cache( $link_id );
238}
239
240/**
241 * Update a link in the database.
242 *
243 * @since 2.0.0
244 *
245 * @param array $linkdata Link data to update.
246 * @return int|WP_Error Value 0 or WP_Error on failure. The updated link ID on success.
247 */
248function wp_update_link( $linkdata ) {
249	$link_id = (int) $linkdata['link_id'];
250
251	$link = get_bookmark( $link_id, ARRAY_A );
252
253	// Escape data pulled from DB.
254	$link = add_magic_quotes( $link );
255
256	// Passed link category list overwrites existing category list if not empty.
257	if ( isset( $linkdata['link_category'] ) && is_array( $linkdata['link_category'] )
258			 && 0 != count( $linkdata['link_category'] ) )
259		$link_cats = $linkdata['link_category'];
260	else
261		$link_cats = $link['link_category'];
262
263	// Merge old and new fields with new fields overwriting old ones.
264	$linkdata = array_merge( $link, $linkdata );
265	$linkdata['link_category'] = $link_cats;
266
267	return wp_insert_link( $linkdata );
268}