Pods CPT Admin Fields

CPT-Admin-Fields.php

<?php
/**
 * Name: CPT Admin Fields
 *
 * Description: Allow adding fields to the CPT editor table.
 *
 * Version: 2.3
 *
 * Category: Advanced
 *
 * Tableless Mode: No
 *
 * @package Pods\Components
 * @subpackage CPT Admin Fields
 */

if ( class_exists( 'Pods_CPT_Admin_Fields' ) ) {
	return;
}

class Pods_CPT_Admin_Fields extends PodsComponent {

	/**
	 * Do things like register/enqueue scripts and stylesheets
	 *
	 * @since 2.3
	 */
	public function __construct() {
		if ( ! pods_tableless() ) {
			add_filter( 'pods_admin_setup_edit_options_post_type', array( $this, 'setup_edit_options' ), 10, 2 );
			add_filter( 'pods_register_post_type', array( $this, 'setup_post_type' ), 10, 2 );
		}
	}

	function setup_post_type( $options, $post_type ) {
		add_filter( "manage_edit-{$post_type}_sortable_columns", array( $this, "admin_columns" ), 10, 1 );
		add_filter( "manage_edit-{$post_type}_columns", array( $this, "admin_columns" ), 10, 1 );
		add_action( "manage_{$post_type}_posts_custom_column", array( $this, "custom_column" ), 10, 2 );

		return $options;
	}

	function setup_edit_options( $options, $pod ) {
		$options['admin-ui']['ui_fields_manage'] = array(
			'label'            => __( 'Admin Table Columns', 'pods' ),
			'help'             => __( 'help', 'pods' ),
			'type'             => 'pick',
			'default'          => array(),
			'data'             => array(),
			'pick_format_type' => 'multi'
		);
		if ( ! empty( $pod['fields'] ) ) {
			$options['admin-ui']['ui_fields_manage']['data']['title'] = __( 'Title', 'pods' );
			// These defaults match WordPress default settings
			$options['admin-ui']['ui_fields_manage']['default'][] = 'title';
			$options['admin-ui']['ui_fields_manage']['default'][] = 'date';

			foreach ( $pod['fields'] as $field ) {
				$options['admin-ui']['ui_fields_manage']['data'][ $field['name'] ] = $field['label'];
			}
			$options['admin-ui']['ui_fields_manage']['data']['author'] = __( 'Author', 'pods' );
			$options['admin-ui']['ui_fields_manage']['data']['date']   = __( 'Date', 'pods' );
		} else {
			unset( $options['admin-ui']['ui_fields_manage'] );
		}

		return $options;
	}

	public function custom_column( $column_name, $post_id = null ) {
		preg_match( '/^manage_(.+)_posts_custom_column$/', current_action(), $matches );
		if ( $matches[1] ) {
			$pod = Pods( $matches[1], $post_id );
			echo $pod->display( $column_name, true );
		}

	}

	public function admin_columns( $columns ) {
		$post_types = PodsMeta::$post_types;
		preg_match( '/^manage_edit-(.*)(_sortable){0,1}_columns$/U', current_action(), $matches );
		$pod      = $matches[1];
		$sortable = isset( $matches[2] ) ? true : false;

		if ( ! matches ) {
			return $columns;
		}

		foreach ( $post_types as $type ) {
			if ( $pod === $type['name'] ) {
				if ( empty( $type['options']['ui_fields_manage'] ) ) {
					return $columns;
				}

				if ( $sortable ) {
					$columns = array();
				} else {
					$columns = array( 'cb' => '<input type="checkbox" />' );
				}
				foreach ( $type['options']['ui_fields_manage'] as $field ) {
					if ( isset( $type['fields'][ $field ] ) ) {
						$columns[ $field ] = $type['fields'][ $field ]['label'];
					} elseif ( isset( $type['object_fields'][ $field ] ) ) {
						$columns[ $field ] = $type['object_fields'][ $field ]['label'];
					} elseif ( isset( $type['object_fields'][ 'post_' . $field ] ) ) {
						// Also check post_ prefix
						$columns[ $field ] = $type['object_fields'][ 'post_' . $field ]['label'];
					}
				}
				// Stop after first matching Pod
				break;
			}
		}

		return $columns;
	}
}