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< ? php
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$wp_taxonomies =
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array ( 'category' => array ( 'object_type' => 'post' , 'hierarchical' => true , 'update_count_callback' => '_update_post_term_count' ),
'post_tag' => array ( 'object_type' => 'post' , 'hierarchical' => false , 'update_count_callback' => '_update_post_term_count' ),
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'link_category' => array ( 'object_type' => 'link' , 'hierarchical' => false ));
function is_taxonomy ( $taxonomy ) {
global $wp_taxonomies ;
return isset ( $wp_taxonomies [ $taxonomy ]);
}
function get_taxonomy ( $taxonomy ) {
global $wp_taxonomies ;
if ( ! is_taxonomy ( $taxonomy ) )
return false ;
return $wp_taxonomies [ $taxonomy ];
}
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function is_taxonomy_hierarchical ( $taxonomy ) {
if ( ! is_taxonomy ( $taxonomy ) )
return false ;
$taxonomy = get_taxonomy ( $taxonomy );
return $taxonomy [ 'hierarchical' ];
}
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function register_taxonomy ( $taxonomy , $object_type , $args = array () ) {
global $wp_taxonomies ;
$args [ 'object_type' ] = $object_type ;
$wp_taxonomies [ $taxonomy ] = $args ;
}
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/**
* Adds a new term to the database . Optionally marks it as an alias of an existing term .
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* @ param int | string $term The term to add or update .
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* @ param string $taxonomy The taxonomy to which to add the term
* @ param int | string $alias_of The id or slug of the new term ' s alias .
*/
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function wp_insert_term ( $term , $taxonomy , $args = array () ) {
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global $wpdb ;
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if ( ! is_taxonomy ( $taxonomy ) )
return new WP_Error ( 'invalid_taxonomy' , __ ( 'Invalid taxonomy' ));
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$defaults = array ( 'alias_of' => '' , 'description' => '' , 'parent' => 0 , 'slug' => '' );
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$args = wp_parse_args ( $args , $defaults );
extract ( $args );
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$name = $term ;
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$parent = ( int ) $parent ;
if ( empty ( $slug ) )
$slug = sanitize_title ( $name );
else
$slug = sanitize_title ( $slug );
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$term_group = 0 ;
if ( $alias_of ) {
$alias = $wpdb -> fetch_row ( " SELECT term_id, term_group FROM $wpdb->terms WHERE slug = ' $alias_of ' " );
if ( $alias -> term_group ) {
// The alias we want is already in a group, so let's use that one.
$term_group = $alias -> term_group ;
} else {
// The alias isn't in a group, so let's create a new one and firstly add the alias term to it.
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$term_group = $wpdb -> get_var ( " SELECT MAX(term_group) FROM $wpdb->terms GROUP BY term_group " ) + 1 ;
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$wpdb -> query ( " UPDATE $wpdb->terms SET term_group = $term_group WHERE term_id = $alias->term_id " );
}
}
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if ( ! $term_id = is_term ( $slug ) ) {
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$wpdb -> query ( " INSERT INTO $wpdb->terms (name, slug, term_group) VALUES (' $name ', ' $slug ', ' $term_group ') " );
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$term_id = ( int ) $wpdb -> insert_id ;
}
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if ( empty ( $slug ) ) {
$slug = sanitize_title ( $slug , $term_id );
$wpdb -> query ( " UPDATE $wpdb->terms SET slug = ' $slug ' WHERE term_id = ' $term_id ' " );
}
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$tt_id = $wpdb -> get_var ( " SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = ' $taxonomy ' AND t.term_id = $term_id " );
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if ( ! empty ( $tt_id ) )
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return array ( 'term_id' => $term_id , 'term_taxonomy_id' => $tt_id );
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$wpdb -> query ( " INSERT INTO $wpdb->term_taxonomy (term_id, taxonomy, description, parent, count) VALUES (' $term_id ', ' $taxonomy ', ' $description ', ' $parent ', '0') " );
$tt_id = ( int ) $wpdb -> insert_id ;
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do_action ( " create_term " , $term_id , $tt_id );
do_action ( " create_ $taxonomy " , $term_id , $tt_id );
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$term_id = apply_filters ( 'term_id_filter' , $term_id , $tt_id );
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clean_term_cache ( $term_id , $taxonomy );
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do_action ( " created_term " , $term_id , $tt_id );
do_action ( " created_ $taxonomy " , $term_id , $tt_id );
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return array ( 'term_id' => $term_id , 'term_taxonomy_id' => $tt_id );
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}
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function wp_delete_object_term_relationships ( $object_id , $taxonomies ) {
global $wpdb ;
$object_id = ( int ) $object_id ;
if ( ! is_array ( $taxonomies ) )
$taxonomies = array ( $taxonomies );
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foreach ( $taxonomies as $taxonomy ) {
$terms = get_object_terms ( $object_id , $taxonomy , 'fields=tt_ids' );
$in_terms = " ' " . implode ( " ', ' " , $terms ) . " ' " ;
$wpdb -> query ( " DELETE FROM $wpdb->term_relationships WHERE object_id = ' $object_id ' AND term_taxonomy_id IN ( $in_terms ) " );
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wp_update_term_count ( $terms , $taxonomy );
}
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// TODO clear the cache
}
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/**
* Removes a term from the database .
*/
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function wp_delete_term ( $term , $taxonomy , $args = array () ) {
global $wpdb ;
$term = ( int ) $term ;
if ( ! $ids = is_term ( $term , $taxonomy ) )
return false ;
$tt_id = $ids [ 'term_taxonomy_id' ];
$defaults = array ();
$args = wp_parse_args ( $args , $defaults );
extract ( $args );
if ( isset ( $default ) ) {
$default = ( int ) $default ;
if ( ! is_term ( $default , $taxonomy ) )
unset ( $default );
}
// Update children to point to new parent
if ( is_taxonomy_hierarchical ( $taxonomy ) ) {
$term_obj = get_term ( $term , $taxonomy );
$parent = $term_obj -> parent ;
$wpdb -> query ( " UPDATE $wpdb->term_taxonomy SET parent = ' $parent ' WHERE parent = ' $term_obj->term_id ' AND taxonomy = ' $taxonomy ' " );
}
$objects = $wpdb -> get_col ( " SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = ' $tt_id ' " );
foreach ( ( array ) $objects as $object ) {
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$terms = get_object_terms ( $object , $taxonomy , 'fields=ids' );
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if ( 1 == count ( $terms ) && isset ( $default ) )
$terms = array ( $default );
else
$terms = array_diff ( $terms , array ( $term ));
wp_set_object_terms ( $object , $terms , $taxonomy );
}
$wpdb -> query ( " DELETE FROM $wpdb->term_taxonomy WHERE term_taxonomy_id = ' $tt_id ' " );
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// Delete the term if no taxonomies use it.
if ( ! $wpdb -> get_var ( " SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = ' $term ' " ) )
$wpdb -> query ( " DELETE FROM $wpdb->terms WHERE term_id = ' $term ' " );
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clean_term_cache ( $term , $taxonomy );
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do_action ( " delete_ $taxonomy " , $term , $tt_id );
return true ;
}
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function wp_update_term ( $term , $taxonomy , $args = array () ) {
global $wpdb ;
if ( ! is_taxonomy ( $taxonomy ) )
return new WP_Error ( 'invalid_taxonomy' , __ ( 'Invalid taxonomy' ));
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$term_id = ( int ) $term ;
// First, get all of the original args
$term = get_term ( $term_id , $taxonomy , ARRAY_A );
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// Escape data pulled from DB.
$term = add_magic_quotes ( $term );
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// Merge old and new args with new args overwriting old ones.
$args = array_merge ( $term , $args );
$defaults = array ( 'alias_of' => '' , 'description' => '' , 'parent' => 0 , 'slug' => '' );
$args = wp_parse_args ( $args , $defaults );
extract ( $args );
$parent = ( int ) $parent ;
if ( empty ( $slug ) )
$slug = sanitize_title ( $name );
else
$slug = sanitize_title ( $slug );
$term_group = 0 ;
if ( $alias_of ) {
$alias = $wpdb -> fetch_row ( " SELECT term_id, term_group FROM $wpdb->terms WHERE slug = ' $alias_of ' " );
if ( $alias -> term_group ) {
// The alias we want is already in a group, so let's use that one.
$term_group = $alias -> term_group ;
} else {
// The alias isn't in a group, so let's create a new one and firstly add the alias term to it.
$term_group = $wpdb -> get_var ( " SELECT MAX() term_group FROM $wpdb->terms GROUP BY term_group " ) + 1 ;
$wpdb -> query ( " UPDATE $wpdb->terms SET term_group = $term_group WHERE term_id = $alias->term_id " );
}
}
$wpdb -> query ( " UPDATE $wpdb->terms SET name = ' $name ', slug = ' $slug ', term_group = ' $term_group ' WHERE term_id = ' $term_id ' " );
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if ( empty ( $slug ) ) {
$slug = sanitize_title ( $slug , $term_id );
$wpdb -> query ( " UPDATE $wpdb->terms SET slug = ' $slug ' WHERE term_id = ' $term_id ' " );
}
$tt_id = $wpdb -> get_var ( " SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = ' $taxonomy ' AND t.term_id = $term_id " );
$wpdb -> query ( " UPDATE $wpdb->term_taxonomy SET term_id = ' $term_id ', taxonomy = ' $taxonomy ', description = ' $description ', parent = ' $parent ', count = 0 WHERE term_taxonomy_id = ' $tt_id ' " );
do_action ( " edit_term " , $term_id , $tt_id );
do_action ( " edit_ $taxonomy " , $term_id , $tt_id );
$term_id = apply_filters ( 'term_id_filter' , $term_id , $tt_id );
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clean_term_cache ( $term_id , $taxonomy );
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do_action ( " edited_term " , $term_id , $tt_id );
do_action ( " edited_ $taxonomy " , $term_id , $tt_id );
return array ( 'term_id' => $term_id , 'term_taxonomy_id' => $tt_id );
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}
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function wp_update_term_count ( $terms , $taxonomy ) {
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global $wpdb ;
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if ( empty ( $terms ) )
return false ;
if ( ! is_array ( $terms ) )
$terms = array ( $terms );
$terms = array_map ( 'intval' , $terms );
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$taxonomy = get_taxonomy ( $taxonomy );
if ( isset ( $taxonomy [ 'update_count_callback' ]) )
return call_user_func ( $taxonomy [ 'update_count_callback' ], $terms );
// Default count updater
$count = $wpdb -> get_var ( " SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = ' $term ' " );
$wpdb -> query ( " UPDATE $wpdb->term_taxonomy SET count = ' $count ' WHERE term_taxonomy_id = ' $term ' " );
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return true ;
}
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/**
* Returns the index of a defined term , or 0 ( false ) if the term doesn ' t exist .
*/
function is_term ( $term , $taxonomy = '' ) {
global $wpdb ;
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if ( is_int ( $term ) ) {
$where = " t.term_id = ' $term ' " ;
} else {
if ( ! $term = sanitize_title ( $term ) )
return 0 ;
$where = " t.slug = ' $term ' " ;
}
$term_id = $wpdb -> get_var ( " SELECT term_id FROM $wpdb->terms as t WHERE $where " );
if ( empty ( $taxonomy ) || empty ( $term_id ) )
return $term_id ;
return $wpdb -> get_row ( " SELECT tt.term_id, tt.term_taxonomy_id FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_id = t.term_id WHERE $where AND tt.taxonomy = ' $taxonomy ' " , ARRAY_A );
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}
/**
* Given an array of terms , returns those that are defined term slugs . Ignores integers .
* @ param array $terms The term slugs to check for a definition .
*/
function get_defined_terms ( $terms ) {
global $wpdb ;
foreach ( $terms as $term ) {
if ( ! is_int ( $term ) )
$searches [] = $term ;
}
$terms = " ' " . implode ( " ', ' " , $searches ) . " ' " ;
return $wpdb -> get_col ( " SELECT slug FROM $wpdb->terms WHERE slug IN ( $terms ) " );
}
/**
* Relates an object ( post , link etc ) to a term and taxonomy type . Creates the term and taxonomy
* relationship if it doesn 't already exist. Creates a term if it doesn' t exist ( using the slug ) .
* @ param int $object_id The object to relate to .
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* @ param array | int | string $term The slug or id of the term .
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* @ param array | string $taxonomy The context in which to relate the term to the object .
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*/
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function wp_set_object_terms ( $object_id , $terms , $taxonomy , $append = false ) {
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global $wpdb ;
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$object_id = ( int ) $object_id ;
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if ( ! is_taxonomy ( $taxonomy ) )
return false ;
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if ( ! is_array ( $terms ) )
$terms = array ( $terms );
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if ( ! $append )
$old_terms = get_object_terms ( $object_id , $taxonomy , 'fields=tt_ids' );
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$tt_ids = array ();
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$term_ids = array ();
foreach ( $terms as $term ) {
if ( ! $id = is_term ( $term , $taxonomy ) )
$id = wp_insert_term ( $term , $taxonomy );
$term_ids [] = $id [ 'term_id' ];
$id = $id [ 'term_taxonomy_id' ];
$tt_ids [] = $id ;
if ( $wpdb -> get_var ( " SELECT term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id = ' $object_id ' AND term_taxonomy_id = ' $id ' " ) )
continue ;
$wpdb -> query ( " INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id) VALUES (' $object_id ', ' $id ') " );
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}
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wp_update_term_count ( $tt_ids , $taxonomy );
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if ( ! $append ) {
$delete_terms = array_diff ( $old_terms , $tt_ids );
if ( $delete_terms ) {
$delete_terms = " ' " . implode ( " ', ' " , $delete_terms ) . " ' " ;
$wpdb -> query ( " DELETE FROM $wpdb->term_relationships WHERE term_taxonomy_id IN ( $delete_terms ) " );
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$wpdb -> query ( " UPDATE $wpdb->term_taxonomy SET count = count - 1 WHERE term_taxonomy_id IN ( $delete_terms ) " );
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wp_update_term_count ( $delete_terms , $taxonomy );
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}
}
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// TODO clean old_terms. Need term_id instead of tt_id
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clean_term_cache ( $term_ids , $taxonomy );
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return $tt_ids ;
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}
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/**
* Returns the terms associated with the given object ( s ), in the supplied taxonomies .
* @ param int | array $object_id The id of the object ( s )) to retrieve for .
* @ param string | array $taxonomies The taxonomies to retrieve terms from .
* @ return array The requested term data .
*/
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function get_object_terms ( $object_ids , $taxonomies , $args = array ()) {
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global $wpdb ;
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if ( ! is_array ( $taxonomies ) )
$taxonomies = array ( $taxonomies );
if ( ! is_array ( $object_ids ) )
$object_ids = array ( $object_ids );
$object_ids = array_map ( 'intval' , $object_ids );
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$defaults = array ( 'orderby' => 'name' , 'order' => 'ASC' , 'fields' => 'all' );
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$args = wp_parse_args ( $args , $defaults );
extract ( $args );
if ( 'count' == $orderby )
$orderby = 'tt.count' ;
else if ( 'name' == $orderby )
$orderby = 't.name' ;
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$taxonomies = " ' " . implode ( " ', ' " , $taxonomies ) . " ' " ;
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$object_ids = implode ( ', ' , $object_ids );
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if ( 'all' == $fields )
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$select_this = 't.*' ;
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else if ( 'ids' == $fields )
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$select_this = 't.term_id' ;
$query = " SELECT $select_this FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON tt.term_id = t.term_id INNER JOIN $wpdb->term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ( $taxonomies ) AND tr.object_id IN ( $object_ids ) ORDER BY $orderby $order " ;
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if ( 'all' == $fields )
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$taxonomy_data = $wpdb -> get_results ( $query );
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else if ( 'ids' == $fields )
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$taxonomy_data = $wpdb -> get_col ( $query );
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else if ( 'tt_ids' == $fields )
$taxonomy_data = $wpdb -> get_col ( " SELECT term_taxonomy_id FROM $wpdb->term_relationships WHERE object_id IN ( $object_ids ) ORDER BY term_taxonomy_id $order " );
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if ( ! $taxonomy_data )
return array ();
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return $taxonomy_data ;
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}
function & get_terms ( $taxonomies , $args = '' ) {
global $wpdb ;
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$single_taxonomy = false ;
if ( ! is_array ( $taxonomies ) ) {
$single_taxonomy = true ;
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$taxonomies = array ( $taxonomies );
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}
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$in_taxonomies = " ' " . implode ( " ', ' " , $taxonomies ) . " ' " ;
$defaults = array ( 'orderby' => 'name' , 'order' => 'ASC' ,
'hide_empty' => true , 'exclude' => '' , 'include' => '' ,
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'number' => '' , 'fields' => 'all' , 'slug' => '' , 'parent' => '' ,
'hierarchical' => true , 'child_of' => 0 , 'get' => '' );
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$args = wp_parse_args ( $args , $defaults );
$args [ 'number' ] = ( int ) $args [ 'number' ];
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if ( ! $single_taxonomy ) {
$args [ 'child_of' ] = 0 ;
$args [ 'hierarchical' ] = false ;
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} else if ( ! is_taxonomy_hierarchical ( $taxonomies [ 0 ]) ) {
$args [ 'child_of' ] = 0 ;
$args [ 'hierarchical' ] = false ;
}
if ( 'all' == $args [ 'get' ] ) {
$args [ 'child_of' ] = 0 ;
$args [ 'hide_empty' ] = 0 ;
$args [ 'hierarchical' ] = false ;
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}
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extract ( $args );
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$key = md5 ( serialize ( $args ) . serialize ( $taxonomies ) );
if ( $cache = wp_cache_get ( 'get_terms' , 'terms' ) ) {
if ( isset ( $cache [ $key ] ) )
return apply_filters ( 'get_terms' , $cache [ $key ], $taxonomies , $args );
}
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if ( 'count' == $orderby )
$orderby = 'tt.count' ;
else if ( 'name' == $orderby )
$orderby = 't.name' ;
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else
$orderby = 't.term_id' ;
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$where = '' ;
$inclusions = '' ;
if ( ! empty ( $include ) ) {
$exclude = '' ;
$interms = preg_split ( '/[\s,]+/' , $include );
if ( count ( $interms ) ) {
foreach ( $interms as $interm ) {
if ( empty ( $inclusions ))
$inclusions = ' AND ( t.term_id = ' . intval ( $interm ) . ' ' ;
else
$inclusions .= ' OR t.term_id = ' . intval ( $interm ) . ' ' ;
}
}
}
if ( ! empty ( $inclusions ) )
$inclusions .= ')' ;
$where .= $inclusions ;
$exclusions = '' ;
if ( ! empty ( $exclude ) ) {
$exterms = preg_split ( '/[\s,]+/' , $exclude );
if ( count ( $exterms ) ) {
foreach ( $exterms as $exterm ) {
if ( empty ( $exclusions ))
$exclusions = ' AND ( t.term_id <> ' . intval ( $exterm ) . ' ' ;
else
$exclusions .= ' AND t.term_id <> ' . intval ( $exterm ) . ' ' ;
}
}
}
if ( ! empty ( $exclusions ) )
$exclusions .= ')' ;
$exclusions = apply_filters ( 'list_terms_exclusions' , $exclusions , $args );
$where .= $exclusions ;
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if ( ! empty ( $slug ) ) {
$slug = sanitize_title ( $slug );
$where = " AND t.slug = ' $slug ' " ;
}
if ( ! empty ( $parent ) ) {
$parent = ( int ) $parent ;
$where = " AND tt.parent = ' $parent ' " ;
}
if ( $hide_empty && ! $hierarchical )
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$where .= ' AND tt.count > 0' ;
if ( ! empty ( $number ) )
$number = 'LIMIT ' . $number ;
else
$number = '' ;
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if ( 'all' == $fields )
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$select_this = 't.*, tt.*' ;
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else if ( 'ids' == $fields )
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$select_this = 't.term_id' ;
$query = " SELECT $select_this FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy IN ( $in_taxonomies ) $where ORDER BY $orderby $order $number " ;
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if ( 'all' == $fields )
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$terms = $wpdb -> get_results ( $query );
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else if ( 'ids' == $fields )
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$terms = $wpdb -> get_col ( $query );
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if ( empty ( $terms ) )
return array ();
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if ( $child_of || $hierarchical ) {
$children = _get_term_hierarchy ( $taxonomies [ 0 ]);
if ( ! empty ( $children ) )
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$terms = & _get_term_children ( $child_of , $terms , $taxonomies [ 0 ]);
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}
/*
// Update category counts to include children.
if ( $pad_counts )
_pad_category_counts ( $type , $categories );
// Make sure we show empty categories that have children.
if ( $hierarchical && $hide_empty ) {
foreach ( $categories as $k => $category ) {
if ( ! $category -> { 'link' == $type ? 'link_count' : 'category_count' } ) {
$children = _get_cat_children ( $category -> cat_ID , $categories );
foreach ( $children as $child )
if ( $child -> { 'link' == $type ? 'link_count' : 'category_count' } )
continue 2 ;
// It really is empty
unset ( $categories [ $k ]);
}
}
}
reset ( $categories );
*/
$cache [ $key ] = $terms ;
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wp_cache_add ( 'get_terms' , $cache , 'term' );
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$terms = apply_filters ( 'get_terms' , $terms , $taxonomies , $args );
return $terms ;
}
function & get_term ( & $term , $taxonomy , $output = OBJECT ) {
global $wpdb ;
if ( empty ( $term ) )
return null ;
if ( is_object ( $term ) ) {
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wp_cache_add ( $term -> term_id , $term , $taxonomy );
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$_term = $term ;
} else {
$term = ( int ) $term ;
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if ( ! $_term = wp_cache_get ( $term , $taxonomy ) ) {
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$_term = $wpdb -> get_row ( " SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = ' $taxonomy ' AND t.term_id = ' $term ' LIMIT 1 " );
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wp_cache_add ( $term , $_term , $taxonomy );
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}
}
$_term = apply_filters ( 'get_term' , $_term , $taxonomy );
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$_term = apply_filters ( " get_ $taxonomy " , $_term , $taxonomy );
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if ( $output == OBJECT ) {
return $_term ;
} elseif ( $output == ARRAY_A ) {
return get_object_vars ( $_term );
} elseif ( $output == ARRAY_N ) {
return array_values ( get_object_vars ( $_term ));
} else {
return $_term ;
}
}
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function get_term_by ( $field , $value , $taxonomy , $output = OBJECT ) {
global $wpdb ;
if ( ! is_taxonomy ( $taxonomy ) )
return false ;
if ( 'slug' == $field ) {
$field = 't.slug' ;
$value = sanitize_title ( $field );
if ( empty ( $value ) )
return false ;
} else if ( 'name' == $field ) {
// Assume already escaped
$field = 't.name' ;
} else {
$field = 't.term_id' ;
$value = ( int ) $value ;
}
$term = $wpdb -> get_row ( " SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy = ' $taxonomy ' AND $field = ' $value ' LIMIT 1 " );
if ( ! $term )
return false ;
wp_cache_add ( $term -> term_id , $term , $taxonomy );
if ( $output == OBJECT ) {
return $term ;
} elseif ( $output == ARRAY_A ) {
return get_object_vars ( $term );
} elseif ( $output == ARRAY_N ) {
return array_values ( get_object_vars ( $term ));
} else {
return $term ;
}
}
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function clean_term_cache ( $ids , $taxonomy ) {
if ( ! is_array ( $ids ) )
$ids = array ( $ids );
foreach ( $ids as $id ) {
wp_cache_delete ( $id , $taxonomy );
}
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wp_cache_delete ( 'all_ids' , $taxonomy );
wp_cache_delete ( 'get' , $taxonomy );
delete_option ( " { $taxonomy } _children " );
wp_cache_delete ( 'get_terms' , 'terms' );
}
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function _get_term_hierarchy ( $taxonomy ) {
// TODO Make sure taxonomy is hierarchical
$children = get_option ( " { $taxonomy } _children " );
if ( is_array ( $children ) )
return $children ;
$children = array ();
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$terms = get_terms ( $taxonomy , 'hide_empty=0&hierarchical=0' );
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foreach ( $terms as $term ) {
if ( $term -> parent > 0 )
$children [ $cterm -> parent ][] = $term -> term_id ;
}
update_option ( " { $taxonomy } _children " , $children );
return $children ;
}
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function & _get_term_children ( $term_id , $terms , $taxonomy ) {
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if ( empty ( $terms ) )
return array ();
$term_list = array ();
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$has_children = _get_term_hierarchy ( $taxonomy );
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if ( ( 0 != $term_id ) && ! isset ( $has_children [ $term_id ]) )
return array ();
foreach ( $terms as $term ) {
if ( $term -> term_id == $term_id )
continue ;
if ( $term -> parent == $term_id ) {
$term_list [] = $term ;
if ( ! isset ( $has_children [ $term -> term_id ]) )
continue ;
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if ( $children = _get_term_children ( $term -> term_id , $terms , $taxonomy ) )
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$term_list = array_merge ( $term_list , $children );
}
}
return $term_list ;
}
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//
// Default callbacks
//
function _update_post_term_count ( $terms ) {
global $wpdb ;
foreach ( $terms as $term ) {
$count = $wpdb -> get_var ( " SELECT COUNT(*) FROM $wpdb->term_relationships , $wpdb->posts WHERE $wpdb->posts .ID = $wpdb->term_relationships .object_id AND post_status = 'publish' AND post_type = 'post' AND term_taxonomy_id = ' $term ' " );
$wpdb -> query ( " UPDATE $wpdb->term_taxonomy SET count = ' $count ' WHERE term_taxonomy_id = ' $term ' " );
}
}
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?>