/**
* Handles the substitution of the placeholders.
*
* @since 1.6
*/
public static function handle_appended_data( $post, $append, $wpautop = TRUE ) {
if ( strlen($append) === 0 ) return "";
// Get the placeholders
$placeholders = self::get_placeholders();
// Get the post's feed source
$source_id = WPRSS_FTP_Meta::get_instance()->get_meta( $post->ID, 'feed_source' );
$source = get_post( $source_id );
// Array of [placeholder] => [text]
$values = array();
// Iterate each known placeholder
foreach ( $placeholders as $placeholder => $description ) {
$value = null;
// Generate the text value for this placeholder
switch ( $placeholder ) {
case '{{feed_name}}':
$value = $source->post_title;
break;
case '{{feed_url}}':
$value = get_post_meta( $source_id, 'wprss_site_url', TRUE );
if ( $value == '' ) {
$value = get_post_meta( $source_id, 'wprss_url', TRUE );
}
break;
case '{{post_title}}':
$value = $post->post_title;
break;
case '{{post_url}}':
$value = get_permalink( $post->ID );
break;
case '{{original_post_url}}':
$value = get_post_meta( $post->ID, 'wprss_item_permalink', TRUE );
break;
case '{{post_import_date}}':
$import_date = WPRSS_FTP_Meta::get_instance()->get_meta( $post->ID, 'import_date' );
// Get the WordPress date and time format settings
$time_format = get_option('time_format');
$date_format = get_option('date_format');
// Format the value and add HTML time tags
$value = @date( "$date_format $time_format", $import_date );
$value = '<time>' . $value . '</time>';
break;
case '{{post_publish_date}}':
$value = get_the_date( '', $post->ID ) .' '. get_the_time( '', $post->ID );
$value = '<time>' . $value . '</time>';
break;
case '{{post_author_name}}':
$user = get_user_by( 'id', $post->post_author );
if ( $user->first_name === '' && $user->last_name === '' ) {
$value = $user->user_login;
}
$value = $user->first_name . ' ' . $user->last_name;
break;
case '{{post_author_url}}':
$user = get_user_by( 'id', $post->post_author );
$value = $user->user_url;
break;
default:
$value = '/';
break;
}
// Add the placeholder and its value to the values array
$values[$placeholder] = $value;
}
// Replaces new lines with <br/> tags
$values["\n"] = '<br/>';
//== ADVANCED PLACEHOLDERS ====
// {{meta: xyz}} Outputs meta value for the post's meta field 'xyz'
// {{source_meta: xyz}} The same, but the meta value is taken from the post's feed source.
// Use regex to find all the advanced placeholders used
preg_match_all("/{{(source_)?meta\s*:\s*([^}]*)}}/ix", $append, $adv_meta);
// The first entry in the results array is an array containing the
// full string match (the placeholder string)
$adv_meta_placeholders = $adv_meta[0];
// The second entry in the results array is an array of the matched
// optional "source_" prefix (the matching group before "meta")
$adv_meta_source = $adv_meta[1];
// The third entry in the results array is an array of the matched
// meta fields (the matching group after the colon)
$adv_meta_fields = $adv_meta[2];
// Iterate each found meta field
for( $i = 0; $i < count($adv_meta_fields); $i++ ) {
// Determine if retrieveing the meta of the post or the source
$target = ( $adv_meta_source[$i] === "source_" )? $source_id : $post->ID;
// Get the meta value from the target post/source
$meta = get_post_meta( $target, $adv_meta_fields[$i], TRUE );
// Prepare the placeholder that matches this meta field
$placeholder = $adv_meta_placeholders[$i];
// Add the find/replace values
$values[ $placeholder ] = $meta;
}
// Return the append/prepend text with all placeholders replaced with their respective text value
$return = WPRSS_FTP_Utils::str_mass_replace( $append, $values );
$return = apply_filters( 'wprss_ftp_handled_append_text', $return, $post->ID );
return $wpautop === TRUE? wpautop( $return ) : $return;
}