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✏️ Editing: class-acf-admin-tool-export.php

<?php

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

if ( ! class_exists( 'ACF_Admin_Tool_Export' ) ) :

class ACF_Admin_Tool_Export extends ACF_Admin_Tool {

/** @var string View context */
		var $view = '';

/** @var array Export data */
		var $json = '';

/**
		 *  initialize
		 *
		 *  This function will initialize the admin tool
		 *
		 *  @date    10/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function initialize() {

// vars
			$this->name  = 'export';
			$this->title = __( 'Export Field Groups', 'acf' );

// active
			if ( $this->is_active() ) {
				$this->title .= ' - ' . __( 'Generate PHP', 'acf' );
			}

}

/**
		 *  submit
		 *
		 *  This function will run when the tool's form has been submit
		 *
		 *  @date    10/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function submit() {

// vars
			$action = acf_maybe_get_POST( 'action' );

// download
			if ( $action === 'download' ) {

$this->submit_download();

// generate
			} elseif ( $action === 'generate' ) {

$this->submit_generate();

}

/**
		 *  submit_download
		 *
		 *  description
		 *
		 *  @date    17/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function submit_download() {

// vars
			$json = $this->get_selected();

// validate
			if ( $json === false ) {
				return acf_add_admin_notice( __( 'No field groups selected', 'acf' ), 'warning' );
			}

// headers
			$file_name = 'acf-export-' . date( 'Y-m-d' ) . '.json';
			header( 'Content-Description: File Transfer' );
			header( "Content-Disposition: attachment; filename={$file_name}" );
			header( 'Content-Type: application/json; charset=utf-8' );

// return
			echo acf_json_encode( $json );
			die;

}

/**
		 *  submit_generate
		 *
		 *  description
		 *
		 *  @date    17/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function submit_generate() {

// vars
			$keys = $this->get_selected_keys();

// validate
			if ( ! $keys ) {
				return acf_add_admin_notice( __( 'No field groups selected', 'acf' ), 'warning' );
			}

// url
			$url = add_query_arg( 'keys', implode( '+', $keys ), $this->get_url() );

// redirect
			wp_redirect( $url );
			exit;

}

/**
		 *  load
		 *
		 *  description
		 *
		 *  @date    21/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function load() {

// active
			if ( $this->is_active() ) {

// get selected keys
				$selected = $this->get_selected_keys();

// add notice
				if ( $selected ) {
					$count = count( $selected );
					$text  = sprintf( _n( 'Exported 1 field group.', 'Exported %s field groups.', $count, 'acf' ), $count );
					acf_add_admin_notice( $text, 'success' );
				}
			}

}

/**
		 *  html
		 *
		 *  This function will output the metabox HTML
		 *
		 *  @date    10/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function html() {

// single (generate PHP)
			if ( $this->is_active() ) {

$this->html_single();

// archive
			} else {

$this->html_archive();

}

/**
		 *  html_field_selection
		 *
		 *  description
		 *
		 *  @date    24/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function html_field_selection() {

// vars
			$choices      = array();
			$selected     = $this->get_selected_keys();
			$field_groups = acf_get_field_groups();

// loop
			if ( $field_groups ) {
				foreach ( $field_groups as $field_group ) {
					$choices[ $field_group['key'] ] = esc_html( $field_group['title'] );
				}
			}

// render
			acf_render_field_wrap(
				array(
					'label'   => __( 'Select Field Groups', 'acf' ),
					'type'    => 'checkbox',
					'name'    => 'keys',
					'prefix'  => false,
					'value'   => $selected,
					'toggle'  => true,
					'choices' => $choices,
				)
			);

}

/**
		 *  html_panel_selection
		 *
		 *  description
		 *
		 *  @date    21/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function html_panel_selection() {

?>
		<div class="acf-panel acf-panel-selection">
			<h3 class="acf-panel-title"><?php _e( 'Select Field Groups', 'acf' ); ?> <i class="dashicons dashicons-arrow-right"></i></h3>
			<div class="acf-panel-inside">
				<?php $this->html_field_selection(); ?>
			</div>
		</div>
			<?php

}

/**
		 *  html_panel_settings
		 *
		 *  description
		 *
		 *  @date    21/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function html_panel_settings() {

?>
		<div class="acf-panel acf-panel-settings">
			<h3 class="acf-panel-title"><?php _e( 'Settings', 'acf' ); ?> <i class="dashicons dashicons-arrow-right"></i></h3>
			<div class="acf-panel-inside">
				<?php

/*
				acf_render_field_wrap(array(
					'label'     => __('Empty settings', 'acf'),
					'type'      => 'select',
					'name'      => 'minimal',
					'prefix'    => false,
					'value'     => '',
					'choices'   => array(
						'all'       => __('Include all settings', 'acf'),
						'minimal'   => __('Ignore empty settings', 'acf'),
					)
				));
				*/

?>
			</div>
		</div>
			<?php

}

/**
		 *  html_archive
		 *
		 *  description
		 *
		 *  @date    20/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function html_archive() {

?>
		<p><?php _e( 'Select the field groups you would like to export and then select your export method. Use the download button to export to a .json file which you can then import to another ACF installation. Use the generate button to export to PHP code which you can place in your theme.', 'acf' ); ?></p>
		<div class="acf-fields">
			<?php $this->html_field_selection(); ?>
		</div>
		<p class="acf-submit">
			<button type="submit" name="action" class="button button-primary" value="download"><?php _e( 'Export File', 'acf' ); ?></button>
			<button type="submit" name="action" class="button" value="generate"><?php _e( 'Generate PHP', 'acf' ); ?></button>
		</p>
			<?php

}

/**
		 *  html_single
		 *
		 *  description
		 *
		 *  @date    20/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function html_single() {

?>
		<div class="acf-postbox-columns">
			<div class="acf-postbox-main">
				<?php $this->html_generate(); ?>
			</div>
			<div class="acf-postbox-side">
				<?php $this->html_panel_selection(); ?>
				<p class="acf-submit">
					<button type="submit" name="action" class="button button-primary" value="generate"><?php _e( 'Generate PHP', 'acf' ); ?></button>
				</p>
			</div>
		</div>
			<?php

}

/**
		 *  html_generate
		 *
		 *  description
		 *
		 *  @date    17/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function html_generate() {

// prevent default translation and fake __() within string
			acf_update_setting( 'l10n_var_export', true );

// vars
			$json         = $this->get_selected();
			$str_replace  = array(
				'  '         => "\t",
				"'!!__(!!\'" => "__('",
				"!!\', !!\'" => "', '",
				"!!\')!!'"   => "')",
				'array ('    => 'array(',
			);
			$preg_replace = array(
				'/([\t\r\n]+?)array/' => 'array',
				'/[0-9]+ => array/'   => 'array',
			);

?>
		<p><?php _e( "The following code can be used to register a local version of the selected field group(s). A local field group can provide many benefits such as faster load times, version control & dynamic fields/settings. Simply copy and paste the following code to your theme's functions.php file or include it within an external file.", 'acf' ); ?></p>
		<textarea id="acf-export-textarea" readonly="true">
			<?php

echo "if( function_exists('acf_add_local_field_group') ):" . "\r\n" . "\r\n";

foreach ( $json as $field_group ) {

// code
				$code = var_export( $field_group, true );

// change double spaces to tabs
				$code = str_replace( array_keys( $str_replace ), array_values( $str_replace ), $code );

// correctly formats "=> array("
				$code = preg_replace( array_keys( $preg_replace ), array_values( $preg_replace ), $code );

// esc_textarea
				$code = esc_textarea( $code );

// echo
				echo "acf_add_local_field_group({$code});" . "\r\n" . "\r\n";

}

echo 'endif;';

?>
		</textarea>
		<p class="acf-submit">
			<a class="button" id="acf-export-copy"><?php _e( 'Copy to clipboard', 'acf' ); ?></a>
		</p>
		<script type="text/javascript">
		(function($){
			
			// vars
			var $a = $('#acf-export-copy');
			var $textarea = $('#acf-export-textarea');
			
			
			// remove $a if 'copy' is not supported
			if( !document.queryCommandSupported('copy') ) {
				return $a.remove();
			}
			
			
			// event
			$a.on('click', function( e ){
				
				// prevent default
				e.preventDefault();
				
				
				// select
				$textarea.get(0).select();
				
				
				// try
				try {
					
					// copy
					var copy = document.execCommand('copy');
					if( !copy ) return;
					
					
					// tooltip
					acf.newTooltip({
						text: 		"<?php _e( 'Copied', 'acf' ); ?>",
						timeout:	250,
						target: 	$(this),
					});
					
				} catch (err) {
					
					// do nothing
					
				}
						
			});
		
		})(jQuery);
		</script>
			<?php

}

/**
		 *  get_selected_keys
		 *
		 *  This function will return an array of field group keys that have been selected
		 *
		 *  @date    20/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  n/a
		 */

function get_selected_keys() {

// check $_POST
			if ( $keys = acf_maybe_get_POST( 'keys' ) ) {
				return (array) $keys;
			}

// check $_GET
			if ( $keys = acf_maybe_get_GET( 'keys' ) ) {
				$keys = str_replace( ' ', '+', $keys );
				return explode( '+', $keys );
			}

// return
			return false;

}

/**
		 *  get_selected
		 *
		 *  This function will return the JSON data for given $_POST args
		 *
		 *  @date    17/10/17
		 *  @since   5.6.3
		 *
		 *  @param   n/a
		 *  @return  array
		 */

function get_selected() {

// vars
			$selected = $this->get_selected_keys();
			$json     = array();

// bail early if no keys
			if ( ! $selected ) {
				return false;
			}

// construct JSON
			foreach ( $selected as $key ) {

// load field group
				$field_group = acf_get_field_group( $key );

// validate field group
				if ( empty( $field_group ) ) {
					continue;
				}

// load fields
				$field_group['fields'] = acf_get_fields( $field_group );

// prepare for export
				$field_group = acf_prepare_field_group_for_export( $field_group );

// add to json array
				$json[] = $field_group;

}

// return
			return $json;

}
	}

// initialize
	acf_register_admin_tool( 'ACF_Admin_Tool_Export' );

endif; // class_exists check

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