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

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/**

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* Class NF_Abstracts_ActionNewsletter

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abstract class NF_Abstracts_ActionNewsletter extends NF_Abstracts_Action

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{

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/**

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* @var array

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protected $_tags = array( 'newsletter' );

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/**

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* @var string

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protected $_timing = 'normal';

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/**

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* @var int

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protected $_priority = '10';

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protected $_settings = array();

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protected $_transient = '';

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protected $_transient_expiration = '';

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protected $_setting_labels = array(

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'list' => 'List',

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'fields' => 'List Field Mapping',

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'groups' => 'Interest Groups',

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);

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/**

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* Constructor

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public function __construct()

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{

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parent::__construct();

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if( ! $this->_transient ){

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$this->_transient = $this->get_name() . '_newsletter_lists';

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}

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/**

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* Ajax call handled in '_get_lists', but bulk of work could be done in

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* the NewsLetter class that extends this class

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add_action( 'wp_ajax_nf_' . $this->_name . '_get_lists', array( $this, '_get_lists' ) );

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$this->get_list_settings();

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}

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* PUBLIC METHODS

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public function save( $action_settings )

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{

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}

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public function process( $action_settings, $form_id, $data )

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{

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}

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public function _get_lists()

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{

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check_ajax_referer( 'ninja_forms_builder_nonce', 'security' );

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$lists = $this->get_lists();

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array_unshift( $lists, array( 'value' => 0, 'label' => '-', 'fields' => array(), 'groups' => array() ) );

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$this->cache_lists( $lists );

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echo wp_json_encode( array( 'lists' => $lists ) );

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wp_die(); // this is required to terminate immediately and return a proper response

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}

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* PROTECTED METHODS

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abstract protected function get_lists();

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* PRIVATE METHODS

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private function get_list_settings()

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{

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$label_defaults = array(

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'list' => 'List',

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'fields' => 'List Field Mapping',

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'groups' => 'Interest Groups',

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);

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$labels = array_merge( $label_defaults, $this->_setting_labels );

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$prefix = $this->get_name();

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$lists = get_transient( $this->_transient );

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if( ! $lists ) {

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$lists = $this->get_lists();

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$this->cache_lists( $lists );

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}

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if( empty( $lists ) ) return;

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$this->_settings[ $prefix . 'newsletter_list' ] = array(

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'name' => 'newsletter_list',

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'type' => 'select',

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'label' => $labels[ 'list' ] . ' <a class="js-newsletter-list-update extra"><span class="dashicons dashicons-update"></span></a>',

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'width' => 'full',

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'group' => 'primary',

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'value' => '0',

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'options' => array(),

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);

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$fields = array();

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foreach( $lists as $list ) {

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$this->_settings[ $prefix . 'newsletter_list' ][ 'options' ][] = $list;

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//Check to see if list has fields array set.

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if ( isset( $list[ 'fields' ] ) ) {

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

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$name = $list[ 'value' ] . '_' . $field[ 'value' ];

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$fields[] = array(

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'name' => $name,

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'type' => 'textbox',

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'label' => $field[ 'label' ],

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'width' => 'full',

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'use_merge_tags' => array(

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'exclude' => array(

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'user', 'post', 'system', 'querystrings'

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)

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)

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);

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}

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}

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}

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$this->_settings[ $prefix . 'newsletter_list_fields' ] = array(

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'name' => 'newsletter_list_fields',

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'label' => esc_html__( 'List Field Mapping', 'ninja-forms' ),

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'type' => 'fieldset',

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'group' => 'primary',

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'settings' => array()

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);

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$this->_settings[ $prefix . 'newsletter_list_groups' ] = array(

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'name' => 'newsletter_list_groups',

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'label' => esc_html__( 'Interest Groups', 'ninja-forms' ),

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'type' => 'fieldset',

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'group' => 'primary',

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'settings' => array()

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);

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}

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private function cache_lists( $lists )

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{

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set_transient( $this->_transient, $lists, $this->_transient_expiration );

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}

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}

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