Noptin_Open_Email_Trigger::get_settings()

    public function get_settings() {

        $args = array(
			'numberposts'	=> -1,
			'post_type'		=> 'noptin-campaign',
			'post_status'	=> array( 'publish', 'draft', 'pending' ),
			'meta_query'    => array(
				array(
					'key'   		=> 'campaign_type',
                    'value' 		=> array( 'automation', 'newsletter' ),
                    'meta_compare'  => 'IN',
				),
			)
		);
        $posts     =  get_posts( $args );
        $campaigns = wp_list_pluck( $posts, 'post_title', 'ID' );

        return array(

            'campaign_id'     => array(
				'el'          => 'select',
				'label'       => __( 'Campaign', 'newsletter-optin-box' ),
				'placeholder' => __( 'Fire for all campaigns', 'newsletter-optin-box' ),
				'options'     => $campaigns,
				'description' => __( 'Select a campaign above if you want to watch for a specific campaign.', 'newsletter-optin-box' ),
            ),

        );

    }