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<?php
/**
* Class of helper functions that don't fit anywhere else.
*
* @since 1.9
*/
final class Types_Utils {
/**
* Shortcut method for retrieving public built-in taxonomies.
*
* @param string $output_mode 'objects'|'names'
*
* @return object[] Array of taxonomy objects or names.
* @since 1.9
*/
public static function get_builtin_taxonomies( $output_mode = 'objects' ) {
// todo add simple caching
return get_taxonomies( array( 'public' => true, '_builtin' => true ), $output_mode );
}
/**
* Get a definitive set of all taxonomies recognized by Types.
*
* Respects if some builtin taxonomy is overridden by Types.
*
* @return array
* @since 1.9
*/
public static function get_all_taxonomies() {
// todo add simple caching
$taxonomies = array();
// Read Types taxonomies first.
$types_taxonomies = get_option( WPCF_OPTION_NAME_CUSTOM_TAXONOMIES, array() );
if ( is_array( $types_taxonomies ) ) {
foreach ( $types_taxonomies as $slug => $data ) {
$taxonomies[ $slug ] = $data;
}
}
// Get all taxonomies and add them to the set, but avoid overwriting Types taxonomies
$all_taxonomies = self::object_to_array_deep( get_taxonomies( array( 'public' => true ) , 'objects' ) );
foreach ( $all_taxonomies as $slug => $data ) {
// check if taxonomies are already saved as custom taxonomies
if ( isset( $taxonomies[ $slug ] ) ) {
continue;
}
if ( ! isset( $data['slug'] ) ) {
$data['slug'] = $slug;
}
$taxonomies[ $slug ] = $data;
}
return $taxonomies;
}
/**
* Transform an object and all it's fields recursively into an associative array. If any object's field is
* an array, individual elements of the array will be transformed as well.
*
* @param object|array $object The object or array of objects to transform.
* @return array
* @since 1.9
*/
public static function object_to_array_deep( $object ) {
if ( is_array( $object ) || is_object( $object ) ) {
$result = array();
foreach ( $object as $key => $value ) {
$result[ $key ] = self::object_to_array_deep( $value );
}
return $result;
}
return $object;
}
/**
* Try to convert a taxonomy slug to a label.
*
* @param string $slug Taxonomy slug.
* @param string $label_name One of the available labels of the taxonomy.
*
* @link https://codex.wordpress.org/Function_Reference/get_taxonomies Taxonomy object description.
*
* @return string Selected taxonomy label or slug if the label was not found.
* @since 1.9
*/
public static function taxonomy_slug_to_label( $slug, $label_name = 'name' ) {
$all_taxonomies = self::get_all_taxonomies();
$taxonomy_display_name = wpcf_getnest( $all_taxonomies, array( $slug, 'labels', $label_name ), $slug );
return $taxonomy_display_name;
}
/**
* Check if searched string is a substring of the value.
*
* @param string $search_string
* @param string $value
* @return bool
* @since 1.9
*/
public static function is_string_match( $search_string, $value ) {
return ( false !== strpos( mb_strtolower( $value ), mb_strtolower( trim( $search_string ) ) ) );
}
/**
* Insert elements into source array at a specified position.
*
* @param array $source Source array.
* @param array $to_insert Array of elements to insert.
* @param int|array $position When integer is provided, zero or positive value means index of the first element that
* will not be included before $to_insert. Negative value defines the position from the end of the source array
* (-1 will insert at the very end, -2 before last element, etc.). When an array is provided, it is expected to
* have form:
* - 'key': Key to select an element in the source array
* - 'where': Insert 'before'|'after' the selected element
*
* @return array
* @since 1.9.1
*/
public static function insert_at_position( $source, $to_insert, $position) {
if( is_array( $position ) ) {
$pivot_key = wpcf_getarr( $position, 'key', null );
$direction = wpcf_getarr( $position, 'where', 'after', array( 'after', 'before' ) );
if( array_key_exists( $pivot_key, $source ) ) {
$pivot_index = array_search( $pivot_key, array_keys( $source ) );
$position = ( 'before' == $direction ) ? $pivot_index : $pivot_index + 1;
} else {
$position = ( 'before' == $direction ) ? 0 : -1;
}
}
// $position should be index of the first element that will NOT be included before $to_insert.
$position = (int) $position;
if( 0 > $position ) {
// E.g.: When $position == -1, the inserted elements should be placed after the last element of $source.
// $position will point after the last element of $source, new elements will be inserted after it.
$position = count( $source ) + 1 + $position;
//echo "pos=$position\n";
// Handle too low $position value - insert elements before whole $source.
if( 0 > $position ) {
$position = 0;
}
}
$first_source_part = array_slice( $source, 0, $position );
$second_source_part = array_slice( $source, $position );
$result = array_merge( $first_source_part, $to_insert, $second_source_part );
return $result;
}
/**
* Return an ID of an attachment by searching the database with the file URL.
*
* First checks to see if the $url is pointing to a file that exists in
* the wp-content directory. If so, then we search the database for a
* partial match consisting of the remaining path AFTER the wp-content
* directory. Finally, if a match is found the attachment ID will be
* returned.
*
* Taken from:
* @link http://frankiejarrett.com/get-an-attachment-id-by-url-in-wordpress/
*
* @param string $url URL of the file.
* @return int|null Attachment ID if it exists.
* @since 1.9.1
*/
public static function get_attachment_id_by_url( $url ) {
// Split the $url into two parts with the wp-content directory as the separator.
$parsed_url = explode( parse_url( WP_CONTENT_URL, PHP_URL_PATH ), $url );
// Get the host of the current site and the host of the $url, ignoring www.
$this_host = str_ireplace( 'www.', '', parse_url( home_url(), PHP_URL_HOST ) );
$file_host = str_ireplace( 'www.', '', parse_url( $url, PHP_URL_HOST ) );
// Return nothing if there aren't any $url parts or if the current host and $url host do not match.
$attachment_path = $parsed_url[1];
if ( ! isset( $attachment_path ) || empty( $attachment_path ) || ( $this_host != $file_host ) ) {
return null;
}
// Now we're going to quickly search the DB for any attachment GUID with a partial path match.
// Example: /uploads/2013/05/test-image.jpg
global $wpdb;
$query = $wpdb->prepare(
"SELECT ID FROM $wpdb->posts WHERE post_type = 'attachment' AND guid LIKE %s",
'%' . $attachment_path
);
$attachment = $wpdb->get_col( $query );
if ( is_array( $attachment ) && ! empty( $attachment ) ) {
return array_shift( $attachment );
}
return null;
}
}