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<?php if ( ! defined( 'ABSPATH' ) ) exit;

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class NF_AJAX_Controllers_Preview extends NF_Abstracts_Controller

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{

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private static $transient_prefix = 'nf_form_preview_';

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public function __construct()

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{

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// Ajax call handled in 'update' in this file

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add_action( 'wp_ajax_nf_preview_update', array( $this, 'update' ) );

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add_filter( 'ninja_forms_run_action_settings', array( $this, 'filter_action_settings' ), 10, 4 );

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}

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public function update()

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{

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// Does the current user have admin privileges

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if (!current_user_can(apply_filters('ninja_forms_admin_all_forms_capabilities', 'manage_options'))) {

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$this->_data['errors'] = esc_html__('Access denied. You must have admin privileges to perform this action.', 'ninja-forms');

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$this->_respond();

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}

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check_ajax_referer( 'ninja_forms_builder_nonce', 'security' );

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$form = json_decode( stripslashes( $_POST['form'] ), ARRAY_A );

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$form_id = $form[ 'id' ];

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$form_data = $this->get_form_data( $form_id );

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* Form Settings

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if( isset( $form[ 'settings' ] ) && is_array( $form[ 'settings' ] ) ) {

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$old_settings = $form_data[ 'settings' ];

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$form_data[ 'settings' ] = array_merge( $old_settings, $form[ 'settings' ] );

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}

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* Fields and Field Settings

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if( isset( $form[ 'fields' ] ) && is_array( $form[ 'fields' ] ) ) {

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foreach( $form[ 'fields' ] as $field ){

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$id = $field[ 'id' ];

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$old_settings = ( isset( $form_data[ 'fields' ][ $id ][ 'settings' ] ) ) ? $form_data[ 'fields' ][ $id ][ 'settings' ] : array();

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$new_settings = array_merge( $old_settings, $field[ 'settings' ] );

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$form_data[ 'fields' ][ $id ][ 'settings' ] = $new_settings;

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}

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}

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if( isset( $form[ 'deleted_fields' ] ) ) {

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foreach( $form[ 'deleted_fields' ] as $deleted_field ){

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unset( $form_data[ 'fields' ][ $deleted_field ] );

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}

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}

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* Actions and Action Settings

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if( isset( $form[ 'actions' ] ) && is_array( $form[ 'actions' ] ) ) {

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foreach( $form[ 'actions' ] as $action ){

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$id = $action[ 'id' ];

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if( isset( $form[ 'deleted_actions' ][ $id ] ) ) {

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unset( $form_data[ 'actions' ][ $id ] );

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continue;

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}

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$old_settings = ( isset ( $form_data[ 'actions' ][ $id ][ 'settings' ] ) ) ? $form_data[ 'actions' ][ $id ][ 'settings' ]: array();

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$new_settings = array_merge( $old_settings, $action[ 'settings' ] );

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$form_data[ 'actions' ][ $id ][ 'settings' ] = $new_settings;

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}

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}

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if( isset( $form[ 'deleted_actions' ] ) ) {

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foreach( $form[ 'deleted_actions' ] as $deleted_action ){

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unset( $form_data[ 'actions' ][ $deleted_action ] );

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}

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}

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$this->update_form_data( $form_data );

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$this->_data['form'] = $form_data;

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do_action( 'ninja_forms_save_form_preview', $form_id );

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$this->_respond();

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}

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public function filter_action_settings( $action_settings, $form_id, $action_id, $form_settings )

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{

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if( ! isset( $form_settings[ 'is_preview' ] ) ) return $action_settings;

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$form_data = $this->get_form_data( $form_id );

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if( isset( $form_data[ 'actions' ][ $action_id ] ) ){

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$settings = $form_data['actions'][$action_id]['settings'];

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$action_settings = array_merge( $action_settings, $settings );

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}

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return $action_settings;

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}

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private function get_form_data( $form_id )

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{

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$form_data = get_user_option( self::$transient_prefix . $form_id, FALSE );

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if( ! $form_data ){

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$form_data = array(); // Initialize $form_data as an empty array. Resolves a PHP deprecated notice

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if( is_string( $form_id ) ){

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$form = Ninja_Forms()->form()->get();

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$form_data['id'] = $form_id;

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$form_data[ 'settings' ] = array();

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$form_data[ 'fields' ] = array();

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$form_data[ 'actions' ] = array();

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} else {

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* Form data is not string and evals to false, so initialize as empty array

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* Resolves a PHP deprecated notice

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$form_data =[];

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$form = Ninja_Forms()->form($form_id)->get();

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$form_data['id'] = $form_id;

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$form_data[ 'settings' ] = $form->get_settings();

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$fields = Ninja_Forms()->form( $form_id )->get_fields();

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foreach( $fields as $field ){

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$field_id = $field->get_id();

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$form_data[ 'fields' ][ $field_id ][ 'settings' ] = $field->get_settings();

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}

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$actions = Ninja_Forms()->form( $form_id )->get_actions();

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foreach( $actions as $action ){

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$action_id = $action->get_id();

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$form_data[ 'actions' ][ $action_id ][ 'settings' ] = $action->get_settings();

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}

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}

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}

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return $form_data;

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}

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private function update_form_data( $form_data )

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{

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$update = update_user_option( get_current_user_id(), self::$transient_prefix . $form_data['id'], $form_data );

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$this->_data[ 'updated' ] = $update;

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if( ! $update ){

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$this->_errors[ 'Form Preview Not Updated' ] = $form_data;

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$this->_errors[ 'Current User' ] = get_current_user_id();

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$this->_errors[ 'Option' ] = self::$transient_prefix . $form_data['id'];

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}

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}

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}

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