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✏️ Editing: class-acf-location-post-template.php

<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

if ( ! class_exists( 'ACF_Location_Post_Template' ) ) :

class ACF_Location_Post_Template extends ACF_Location {

/**
		 * Initializes props.
		 *
		 * @date    5/03/2014
		 * @since   5.0.0
		 *
		 * @param   void
		 * @return  void
		 */
		public function initialize() {
			$this->name        = 'post_template';
			$this->label       = __( 'Post Template', 'acf' );
			$this->category    = 'post';
			$this->object_type = 'post';
		}

/**
		 * Matches the provided rule against the screen args returning a bool result.
		 *
		 * @date    9/4/20
		 * @since   5.9.0
		 *
		 * @param   array $rule The location rule.
		 * @param   array $screen The screen args.
		 * @param   array $field_group The field group settings.
		 * @return  bool
		 */
		public function match( $rule, $screen, $field_group ) {

// Check screen args.
			if ( isset( $screen['post_type'] ) ) {
				$post_type = $screen['post_type'];
			} elseif ( isset( $screen['post_id'] ) ) {
				$post_type = get_post_type( $screen['post_id'] );
			} else {
				return false;
			}

// Check if this post type has templates.
			$post_templates = acf_get_post_templates();
			if ( ! isset( $post_templates[ $post_type ] ) ) {
				return false;
			}

// Get page template allowing for screen or database value.
			if ( isset( $screen['page_template'] ) ) {
				$page_template = $screen['page_template'];
			} elseif ( isset( $screen['post_id'] ) ) {
				$page_template = get_post_meta( $screen['post_id'], '_wp_page_template', true );
			} else {
				$page_template = '';
			}

// Treat empty value as default template.
			if ( $page_template === '' ) {
				$page_template = 'default';
			}

// Compare rule against $page_template.
			return $this->compare_to_rule( $page_template, $rule );
		}

/**
		 * Returns an array of possible values for this rule type.
		 *
		 * @date    9/4/20
		 * @since   5.9.0
		 *
		 * @param   array $rule A location rule.
		 * @return  array
		 */
		public function get_values( $rule ) {
			return array_merge(
				array(
					'default' => apply_filters( 'default_page_template_title', __( 'Default Template', 'acf' ) ),
				),
				acf_get_post_templates()
			);
		}

/**
		 * Returns the object_subtype connected to this location.
		 *
		 * @date    1/4/20
		 * @since   5.9.0
		 *
		 * @param   array $rule A location rule.
		 * @return  string|array
		 */
		public function get_object_subtype( $rule ) {
			if ( $rule['operator'] === '==' ) {
				$post_templates = acf_get_post_templates();

// If "default", return array of all post types which have templates.
				if ( $rule['value'] === 'default' ) {
					return array_keys( $post_templates );

// Otherwise, generate list of post types that have the selected template.
				} else {
					$post_types = array();
					foreach ( $post_templates as $post_type => $templates ) {
						if ( isset( $templates[ $rule['value'] ] ) ) {
							$post_types[] = $post_type;
						}
					}
					return $post_types;
				}
			}
			return '';
		}
	}

// initialize
	acf_register_location_type( 'ACF_Location_Post_Template' );

endif; // class_exists check

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