columns_example = array(
'column_id' => array(
'name' => __( 'Column Name', 'advanced-post-manager' ),
'meta' => '_some_meta', // in most cases, this piece of meta will be queried to provide column contents
),
);
$this->nonce .= $post_type; // keep it tidy
$this->user_meta .= $post_type;
$this->post_type = $post_type;
$this->set_active( $active );
$this->set_columns( $columns );
$this->set_fallback( $fallback );
$this->add_actions_and_filters();
$this->url = trailingslashit( plugins_url( '', __FILE__ ) );
}
// PUBLIC API METHODS
/**
* Sets the columns to be shown in the list view for associated post type
* See documentation for column array construction
* @param $columns array of column arrays
*/
public function set_columns( $columns = array() ) {
if ( ! empty( $columns ) ) {
$this->columns = $columns;
$this->alphabetize_columns();
}
}
/**
* Adds columns to the current set of registered columns
* See documentation for column array construction
* @param $columns array of column arrays
*/
public function add_columns ( $columns = array() ) {
if ( ! empty( $columns ) ) {
$this->columns = array_merge( $this->columns, $columns );
$this->alphabetize_columns();
}
}
/**
* Whether registered columns should be shown after or before WordPress defaults
* @param $append bool 'before' or 'after'
*/
public function set_override( $override ) {
$this->override = (bool) $override;
}
/**
* Set fallback defaults for when custom column are cleared
* When fallback is empty, all columns will be shown on reset
* @param $fallback array one-dimensional array of column keys
*/
public function set_fallback( $fallback = array() ) {
$this->fallback = (array) $fallback;
}
/**
* Explicitly set an active set of columns. Usually not set.
* This will override any other internal method of retrieving active columns
* @param $active array one-dimensional array of column keys
*/
public function set_active( $active = array() ) {
$this->active = (array) $active;
}
/**
* Outputs the drag & drop columns view.
* Expects to be inside a form
*/
public function output_form() {
wp_nonce_field( $this->nonce, $this->nonce, false );
$headers = $this->get_column_headers();
// make sure there are no strays
$this->sweep_empties();
// key 'em up
$active = array();
foreach ( $this->active as $v ) {
$active[ $v ] = $v;
}
$inactive = array_diff_key( $headers, $active );
unset( $active );
?>
active as $v ) {
if ( ! isset( $headers[ $v ] ) ) {
continue;
}
// the comments header is typically an icon. This swaps it out with text
if ( 'comments' == $v ) {
$headers[ $v ] = __( 'Comments' );
}//end if
echo '';
echo '× ';
echo ' ';
$i++;
}
?>
' . esc_html__( 'Add a Column', 'advanced-post-manager' ) . '';
foreach ( $inactive as $key => $value ) {
$name = ( is_string( $value ) ) ? $value : $value['name'];
if ( empty( $name ) ) {
continue;
}
if ( false !== strstr( $name, '="Comments"' ) ) {
$name = __( 'Comments' );
}
echo '' . esc_html( wp_strip_all_tags( $name ) ) . ' ';
}
?> %s %s%s ', esc_url( $url ), esc_html( $term->name ) );
}
return implode( ', ', $ret );
}
private function reset_active() {
global $userdata;
delete_user_meta( $userdata->ID, $this->user_meta );
$this->active = array();
$this->init_active();
}
protected function is_date( $column ) {
if ( isset( $column['cast'] ) ) {
$cast = ucwords( $column['cast'] );
if ( in_array( $cast, array( 'DATE', 'DATETIME' ) ) ) {
return true;
}
}
elseif ( isset( $column['type'] ) && 'DATE' === ucwords( $column['type'] ) ) {
return true;
}
return false;
}
protected function is_our_post_type() {
$screen = get_current_screen();
if ( empty( $screen ) ) {
global $typenow;
$post_type = empty( $typenow ) ? 'post' : $typenow;
}
else {
$post_type = $screen->post_type;
}
if ( $post_type === $this->post_type )
return true;
else
return false;
}
}