10
* Retrieve Bookmark data
13
* @uses $wpdb Database Object
15
* @param mixed $bookmark
16
* @param string $output Optional. Either OBJECT, ARRAY_N, or ARRAY_A constant
17
* @param string $filter Optional, default is 'raw'.
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* @return array|object Type returned depends on $output value.
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function get_bookmark($bookmark, $output = OBJECT, $filter = 'raw') {
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if ( empty($bookmark) ) {
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if ( isset($GLOBALS['link']) )
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$_bookmark = & $GLOBALS['link'];
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} elseif ( is_object($bookmark) ) {
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wp_cache_add($bookmark->link_id, $bookmark, 'bookmark');
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$_bookmark = $bookmark;
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if ( isset($GLOBALS['link']) && ($GLOBALS['link']->link_id == $bookmark) ) {
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$_bookmark = & $GLOBALS['link'];
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} elseif ( ! $_bookmark = wp_cache_get($bookmark, 'bookmark') ) {
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$_bookmark = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->links WHERE link_id = %d LIMIT 1", $bookmark));
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$_bookmark->link_category = array_unique( wp_get_object_terms( $_bookmark->link_id, 'link_category', array( 'fields' => 'ids' ) ) );
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wp_cache_add( $_bookmark->link_id, $_bookmark, 'bookmark' );
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$_bookmark = sanitize_bookmark($_bookmark, $filter);
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if ( $output == OBJECT ) {
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} elseif ( $output == ARRAY_A ) {
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return get_object_vars($_bookmark);
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} elseif ( $output == ARRAY_N ) {
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return array_values(get_object_vars($_bookmark));
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* Retrieve single bookmark data item or field.
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* @uses get_bookmark() Gets bookmark object using $bookmark as ID
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* @uses sanitize_bookmark_field() Sanitizes Bookmark field based on $context.
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* @param string $field The name of the data field to return
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* @param int $bookmark The bookmark ID to get field
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* @param string $context Optional. The context of how the field will be used.
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function get_bookmark_field( $field, $bookmark, $context = 'display' ) {
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$bookmark = (int) $bookmark;
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$bookmark = get_bookmark( $bookmark );
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if ( is_wp_error($bookmark) )
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if ( !is_object($bookmark) )
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if ( !isset($bookmark->$field) )
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return sanitize_bookmark_field($field, $bookmark->$field, $bookmark->link_id, $context);
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* Retrieves the list of bookmarks
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* Attempts to retrieve from the cache first based on MD5 hash of arguments. If
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* that fails, then the query will be built from the arguments and executed. The
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* results will be stored to the cache.
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* @global wpdb $wpdb WordPress database access abstraction object.
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* @param string|array $args {
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* Optional. String or array of arguments to retrieve bookmarks.
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* @type string $orderby How to order the links by. Accepts post fields. Default 'name'.
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* @type string $order Whether to order bookmarks in ascending or descending order.
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* Accepts 'ASC' (ascending) or 'DESC' (descending). Default 'ASC'.
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* @type int $limit Amount of bookmarks to display. Accepts 1+ or -1 for all.
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* @type string $category Comma-separated list of category ids to include links from.
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* @type string $category_name Category to retrieve links for by name. Default empty.
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* @type int|bool $hide_invisible Whether to show or hide links marked as 'invisible'. Accepts
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* 1|true or 0|false. Default 1|true.
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* @type int|bool $show_updated Whether to display the time the bookmark was last updated.
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* Accepts 1|true or 0|false. Default 0|false.
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* @type string $include Comma-separated list of bookmark IDs to include. Default empty.
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* @type string $exclude Comma-separated list of bookmark IDs to exclude. Default empty.
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* @return array List of bookmark row objects.
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function get_bookmarks( $args = '' ) {
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'orderby' => 'name', 'order' => 'ASC',
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'limit' => -1, 'category' => '',
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'category_name' => '', 'hide_invisible' => 1,
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'show_updated' => 0, 'include' => '',
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'exclude' => '', 'search' => ''
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$r = wp_parse_args( $args, $defaults );
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$key = md5( serialize( $r ) );
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if ( $cache = wp_cache_get( 'get_bookmarks', 'bookmark' ) ) {
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if ( is_array( $cache ) && isset( $cache[ $key ] ) ) {
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$bookmarks = $cache[ $key ];
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* Filter the returned list of bookmarks.
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* The first time the hook is evaluated in this file, it returns the cached
139
* bookmarks list. The second evaluation returns a cached bookmarks list if the
140
* link category is passed but does not exist. The third evaluation returns
141
* the full cached results.
145
* @see get_bookmarks()
147
* @param array $bookmarks List of the cached bookmarks.
148
* @param array $r An array of bookmark query arguments.
150
return apply_filters( 'get_bookmarks', $bookmarks, $r );
154
if ( ! is_array( $cache ) ) {
159
if ( ! empty( $r['include'] ) ) {
160
$r['exclude'] = ''; //ignore exclude, category, and category_name params if using include
162
$r['category_name'] = '';
163
$inclinks = preg_split( '/[\s,]+/', $r['include'] );
164
if ( count( $inclinks ) ) {
165
foreach ( $inclinks as $inclink ) {
166
if ( empty( $inclusions ) ) {
167
$inclusions = ' AND ( link_id = ' . intval( $inclink ) . ' ';
169
$inclusions .= ' OR link_id = ' . intval( $inclink ) . ' ';
174
if (! empty( $inclusions ) ) {
179
if ( ! empty( $r['exclude'] ) ) {
180
$exlinks = preg_split( '/[\s,]+/', $r['exclude'] );
181
if ( count( $exlinks ) ) {
182
foreach ( $exlinks as $exlink ) {
183
if ( empty( $exclusions ) ) {
184
$exclusions = ' AND ( link_id <> ' . intval( $exlink ) . ' ';
186
$exclusions .= ' AND link_id <> ' . intval( $exlink ) . ' ';
191
if ( ! empty( $exclusions ) ) {
195
if ( ! empty( $r['category_name'] ) ) {
196
if ( $r['category'] = get_term_by('name', $r['category_name'], 'link_category') ) {
197
$r['category'] = $r['category']->term_id;
199
$cache[ $key ] = array();
200
wp_cache_set( 'get_bookmarks', $cache, 'bookmark' );
201
/** This filter is documented in wp-includes/bookmark.php */
202
return apply_filters( 'get_bookmarks', array(), $r );
207
if ( ! empty( $r['search'] ) ) {
208
$like = '%' . $wpdb->esc_like( $r['search'] ) . '%';
209
$search = $wpdb->prepare(" AND ( (link_url LIKE %s) OR (link_name LIKE %s) OR (link_description LIKE %s) ) ", $like, $like, $like );
212
$category_query = '';
214
if ( ! empty( $r['category'] ) ) {
215
$incategories = preg_split( '/[\s,]+/', $r['category'] );
216
if ( count($incategories) ) {
217
foreach ( $incategories as $incat ) {
218
if ( empty( $category_query ) ) {
219
$category_query = ' AND ( tt.term_id = ' . intval( $incat ) . ' ';
221
$category_query .= ' OR tt.term_id = ' . intval( $incat ) . ' ';
226
if ( ! empty( $category_query ) ) {
227
$category_query .= ") AND taxonomy = 'link_category'";
228
$join = " INNER JOIN $wpdb->term_relationships AS tr ON ($wpdb->links.link_id = tr.object_id) INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id";
231
if ( $r['show_updated'] ) {
232
$recently_updated_test = ", IF (DATE_ADD(link_updated, INTERVAL 120 MINUTE) >= NOW(), 1,0) as recently_updated ";
234
$recently_updated_test = '';
237
$get_updated = ( $r['show_updated'] ) ? ', UNIX_TIMESTAMP(link_updated) AS link_updated_f ' : '';
239
$orderby = strtolower( $r['orderby'] );
241
switch ( $orderby ) {
243
$length = ", CHAR_LENGTH(link_name) AS length";
249
$orderby = "$wpdb->links.link_id";
252
$orderparams = array();
253
$keys = array( 'link_id', 'link_name', 'link_url', 'link_visible', 'link_rating', 'link_owner', 'link_updated', 'link_notes' );
254
foreach ( explode( ',', $orderby ) as $ordparam ) {
255
$ordparam = trim( $ordparam );
257
if ( in_array( 'link_' . $ordparam, $keys ) ) {
258
$orderparams[] = 'link_' . $ordparam;
259
} elseif ( in_array( $ordparam, $keys ) ) {
260
$orderparams[] = $ordparam;
263
$orderby = implode( ',', $orderparams );
266
if ( empty( $orderby ) ) {
267
$orderby = 'link_name';
270
$order = strtoupper( $r['order'] );
271
if ( '' !== $order && ! in_array( $order, array( 'ASC', 'DESC' ) ) ) {
276
if ( $r['hide_invisible'] ) {
277
$visible = "AND link_visible = 'Y'";
280
$query = "SELECT * $length $recently_updated_test $get_updated FROM $wpdb->links $join WHERE 1=1 $visible $category_query";
281
$query .= " $exclusions $inclusions $search";
282
$query .= " ORDER BY $orderby $order";
283
if ( $r['limit'] != -1 ) {
284
$query .= ' LIMIT ' . $r['limit'];
287
$results = $wpdb->get_results( $query );
289
$cache[ $key ] = $results;
290
wp_cache_set( 'get_bookmarks', $cache, 'bookmark' );
292
/** This filter is documented in wp-includes/bookmark.php */
293
return apply_filters( 'get_bookmarks', $results, $r );
297
* Sanitizes all bookmark fields
301
* @param object|array $bookmark Bookmark row
302
* @param string $context Optional, default is 'display'. How to filter the
304
* @return object|array Same type as $bookmark but with fields sanitized.
306
function sanitize_bookmark($bookmark, $context = 'display') {
307
$fields = array('link_id', 'link_url', 'link_name', 'link_image', 'link_target', 'link_category',
308
'link_description', 'link_visible', 'link_owner', 'link_rating', 'link_updated',
309
'link_rel', 'link_notes', 'link_rss', );
311
if ( is_object($bookmark) ) {
313
$link_id = $bookmark->link_id;
316
$link_id = $bookmark['link_id'];
319
foreach ( $fields as $field ) {
321
if ( isset($bookmark->$field) )
322
$bookmark->$field = sanitize_bookmark_field($field, $bookmark->$field, $link_id, $context);
324
if ( isset($bookmark[$field]) )
325
$bookmark[$field] = sanitize_bookmark_field($field, $bookmark[$field], $link_id, $context);
333
* Sanitizes a bookmark field
335
* Sanitizes the bookmark fields based on what the field name is. If the field
336
* has a strict value set, then it will be tested for that, else a more generic
337
* filtering is applied. After the more strict filter is applied, if the
338
* $context is 'raw' then the value is immediately return.
340
* Hooks exist for the more generic cases. With the 'edit' context, the
341
* 'edit_$field' filter will be called and passed the $value and $bookmark_id
342
* respectively. With the 'db' context, the 'pre_$field' filter is called and
343
* passed the value. The 'display' context is the final context and has the
344
* $field has the filter name and is passed the $value, $bookmark_id, and
345
* $context respectively.
349
* @param string $field The bookmark field
350
* @param mixed $value The bookmark field value
351
* @param int $bookmark_id Bookmark ID
352
* @param string $context How to filter the field value. Either 'raw', 'edit',
353
* 'attribute', 'js', 'db', or 'display'
354
* @return mixed The filtered value
356
function sanitize_bookmark_field($field, $value, $bookmark_id, $context) {
358
case 'link_id' : // ints
360
$value = (int) $value;
362
case 'link_category' : // array( ints )
363
$value = array_map('absint', (array) $value);
364
// We return here so that the categories aren't filtered.
365
// The 'link_category' filter is for the name of a link category, not an array of a link's link categories
368
case 'link_visible' : // bool stored as Y|N
369
$value = preg_replace('/[^YNyn]/', '', $value);
371
case 'link_target' : // "enum"
372
$targets = array('_top', '_blank');
373
if ( ! in_array($value, $targets) )
378
if ( 'raw' == $context )
381
if ( 'edit' == $context ) {
382
/** This filter is documented in wp-includes/post.php */
383
$value = apply_filters( "edit_$field", $value, $bookmark_id );
385
if ( 'link_notes' == $field ) {
386
$value = esc_html( $value ); // textarea_escaped
388
$value = esc_attr($value);
390
} else if ( 'db' == $context ) {
391
/** This filter is documented in wp-includes/post.php */
392
$value = apply_filters( "pre_$field", $value );
394
/** This filter is documented in wp-includes/post.php */
395
$value = apply_filters( $field, $value, $bookmark_id, $context );
397
if ( 'attribute' == $context )
398
$value = esc_attr($value);
399
else if ( 'js' == $context )
400
$value = esc_js($value);
407
* Deletes bookmark cache
410
* @uses wp_cache_delete() Deletes the contents of 'get_bookmarks'
412
function clean_bookmark_cache( $bookmark_id ) {
413
wp_cache_delete( $bookmark_id, 'bookmark' );
414
wp_cache_delete( 'get_bookmarks', 'bookmark' );
415
clean_object_term_cache( $bookmark_id, 'link');