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<?php

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use AdvancedAds\Utilities\WordPress;

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/**

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* Shortcode generator for TinyMCE editor

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* Includes the shortcode plugin inline to prevent it from being blocked by ad blockers.

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class Advanced_Ads_Shortcode_Creator {

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/**

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* Contains ids of the editors that contains the Advanced Ads button.

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* @var array

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private $editors_with_buttons = [];

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/**

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* Instance of this class.

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* @var object

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protected static $instance = null;

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/**

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* Advanced_Ads_Shortcode_Creator constructor.

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private function __construct() {

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add_action( 'init', [ $this, 'init' ] );

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}

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/**

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* Return an instance of this class.

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* @return object A single instance of this class.

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public static function get_instance() {

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// If the single instance hasn't been set, set it now.

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if ( null === self::$instance ) {

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self::$instance = new self();

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}

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return self::$instance;

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}

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/**

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* Call needed hooks and functions

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public function init() {

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$options = Advanced_Ads::get_instance()->options();

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if ( 'true' !== get_user_option( 'rich_editing' )

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|| ! WordPress::user_can( 'advanced_ads_place_ads' )

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|| defined( 'ADVANCED_ADS_DISABLE_SHORTCODE_BUTTON' )

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|| apply_filters( 'advanced-ads-disable-shortcode-button', false )

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) {

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return;

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}

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add_action( 'wp_ajax_advads_content_for_shortcode_creator', [ $this, 'get_content_for_shortcode_creator' ] );

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add_filter( 'mce_buttons', [ $this, 'register_buttons' ], 10, 2 );

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add_filter( 'tiny_mce_plugins', [ $this, 'tiny_mce_plugins' ] );

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add_filter( 'tiny_mce_before_init', [ $this, 'tiny_mce_before_init' ], 10, 2 );

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add_action( 'wp_tiny_mce_init', [ $this, 'print_shortcode_plugin' ] );

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add_action( 'print_default_editor_scripts', [ $this, 'print_shortcode_plugin' ] );

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}

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/**

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* Check if needed actions and filters have not been removed by a plugin.

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* @return array

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private function hooks_exist() {

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if (

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has_action( 'wp_tiny_mce_init', [ $this, 'print_shortcode_plugin' ] )

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|| has_action( 'print_default_editor_scripts', [ $this, 'print_shortcode_plugin' ] )

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) {

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return true;

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}

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return false;

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}

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/**

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* Print shortcode plugin inline.

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* @param array|null $mce_settings TinyMCE settings array.

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public function print_shortcode_plugin( $mce_settings = [] ) {

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static $printed = null;

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if ( $printed !== null ) {

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return;

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}

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$printed = true;

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// The `tinymce` argument of the `wp_editor()` function is set to `false`.

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if ( empty( $mce_settings ) && ! ( doing_action( 'print_default_editor_scripts' ) && user_can_richedit() ) ) {

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return;

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}

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if ( empty( $this->editors_with_buttons ) ) {

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return;

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}

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// phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped

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echo "<script>\n"

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. $this->get_l10n() . "\n"

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. file_get_contents( ADVADS_ABSPATH . 'admin/assets/js/shortcode.js' ) . "\n"

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. "</script>\n";

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// phpcs:enable

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}

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/**

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* Get localization strings.

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* @return string

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private function get_l10n() {

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static $script = null;

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if ( null === $script ) {

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include_once ADVADS_ABSPATH . 'admin/includes/shortcode-creator-l10n.php';

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$script = $strings;

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}

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return $script;

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}

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/**

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* Add the plugin to the array of default TinyMCE plugins.

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* We do not use the array of external TinyMCE plugins because we print the plugin file inline.

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* @param array $plugins An array of default TinyMCE plugins.

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* @return array $plugins An array of default TinyMCE plugins.

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public function tiny_mce_plugins( $plugins ) {

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if ( ! $this->hooks_exist() ) {

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return $plugins;

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}

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$plugins[] = 'advads_shortcode';

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return $plugins;

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}

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/**

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* Delete the plugin added by the {@see `tiny_mce_plugins`} method when necessary hooks do not exist.

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* This is needed because a plugin may call `wp_editor` (which will permanently add our `advads_shortcode` plugin,

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* because the `tiny_mce_plugins` hooks is called only once) and after that another plugin may call

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* `remove_all_filters( 'mce_buttons') function that will remove our hook.

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* @param array $mce_init An array with TinyMCE config.

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* @param string $editor_id Unique editor identifier.

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* @return array the TinyMCE config.

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public function tiny_mce_before_init( $mce_init, $editor_id = '' ) {

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if (

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! isset( $mce_init['plugins'] )

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|| ! is_string( $mce_init['plugins'] )

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) {

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return $mce_init;

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}

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$plugins = explode( ',', $mce_init['plugins'] );

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$found = array_search( 'advads_shortcode', $plugins, true );

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if ( ! $found || ( $editor_id !== '' && in_array( $editor_id, $this->editors_with_buttons, true ) ) ) {

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return $mce_init;

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}

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unset( $plugins[ $found ] );

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$mce_init['plugins'] = implode( ',', $plugins );

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return $mce_init;

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}

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/**

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* Add button to tinyMCE window

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* @param array $buttons Array with existing buttons.

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* @param string $editor_id Unique editor identifier.

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* @return array

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public function register_buttons( $buttons, $editor_id ) {

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if ( ! $this->hooks_exist() ) {

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return $buttons;

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}

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if ( ! is_array( $buttons ) ) {

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$buttons = [];

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}

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$this->editors_with_buttons[] = $editor_id;

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$buttons [] = 'advads_shortcode_button';

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return $buttons;

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}

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/**

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* Prints html select field for shortcode creator

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public function get_content_for_shortcode_creator() {

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if ( ! ( current_user_can( 'edit_posts' ) || current_user_can( 'edit_pages' ) ) ) {

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return;

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}

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$items = self::items_for_select(); ?>

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<?php if ( isset( $items['ads'] ) ) : ?>

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<?php foreach ( $items['ads'] as $_item_id => $_item_title ) : ?>

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<?php endforeach; ?>

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</optgroup>

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<?php endif; ?>

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<?php if ( isset( $items['groups'] ) ) : ?>

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<?php foreach ( $items['groups'] as $_item_id => $_item_title ) : ?>

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<?php endforeach; ?>

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</optgroup>

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<?php endif; ?>

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<?php if ( isset( $items['placements'] ) ) : ?>

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<?php foreach ( $items['placements'] as $_item_id => $_item_title ) : ?>

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<?php endforeach; ?>

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</optgroup>

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<?php endif; ?>

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</select>

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<?php

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exit();

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}

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/**

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* Get items for item select field

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* @return array $select items for select field.

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public static function items_for_select() {

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$select = [];

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$model = Advanced_Ads::get_instance()->get_model();

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// load all ads.

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$ads = $model->get_ads(

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[

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'orderby' => 'title',

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'order' => 'ASC',

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]

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);

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foreach ( $ads as $_ad ) {

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$select['ads'][ 'ad_' . $_ad->ID ] = $_ad->post_title;

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}

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// load all ad groups.

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$groups = $model->get_ad_groups();

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foreach ( $groups as $_group ) {

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$select['groups'][ 'group_' . $_group->term_id ] = $_group->name;

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}

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// load all placements.

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$placements = $model->get_ad_placements_array();

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ksort( $placements );

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foreach ( $placements as $key => $_placement ) {

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$select['placements'][ 'placement_' . $key ] = $_placement['name'];

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}

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return $select;

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}

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}

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