woothemes / sensei

includes/class-sensei-analysis.php

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 11 and the first side effect is on line 2.

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

/**
 * All functionality pertaining to the Admin Analysis in Sensei.
 *
 * @package Analytics
 * @author Automattic
 * @since 1.0.0
 */
class Sensei_Analysis {

	public $name;
	public $file;
	public $page_slug;

	/**
	 * Constructor
	 * @since  1.0.0
	 * @param string $file
	 */
	public function __construct ( $file ) {
		$this->name = __('Analysis', 'woothemes-sensei');
		$this->file = $file;
		$this->page_slug = 'sensei_analysis';

		// Admin functions
		if ( is_admin() ) {
			add_action( 'admin_menu', array( $this, 'analysis_admin_menu' ), 10);
			add_action( 'analysis_wrapper_container', array( $this, 'wrapper_container'  ) );
			if ( isset( $_GET['page'] ) && ( $_GET['page'] == $this->page_slug ) ) {

				add_action( 'admin_print_styles', array( $this, 'enqueue_styles' ) );

			}

			add_action( 'admin_init', array( $this, 'report_download_page' ) );

			add_filter( 'user_search_columns', array( $this, 'user_search_columns_filter' ), 10, 3 );
		} // End If Statement
	} // End __construct()


	/**
	 * analysis_admin_menu function.
	 * @since  1.0.0
	 * @access public
	 * @return void
	 */
	public function analysis_admin_menu() {

This method seems to be duplicated in your project.

		global $menu, $woocommerce;

		if ( current_user_can( 'manage_sensei_grades' ) ) {

            add_submenu_page( 'sensei', __('Analysis', 'woothemes-sensei'),  __('Analysis', 'woothemes-sensei') , 'manage_sensei_grades', 'sensei_analysis', array( $this, 'analysis_page' ) );

		}

	} // End analysis_admin_menu()

	/**
	 * enqueue_styles function.
	 *
	 * @description Load in CSS styles where necessary.
	 * @access public
	 * @since 1.0.0
	 * @return void
	 */
	public function enqueue_styles () {

		wp_enqueue_style( 'woothemes-sensei-admin' );

		wp_enqueue_style( 'woothemes-sensei-settings-api', Sensei()->plugin_url . 'assets/css/settings.css', '', Sensei()->version );

	} // End enqueue_styles()

	/**
	 * load_data_table_files loads required files for Analysis
	 * @since  1.2.0
	 * @return void
	 */
	public function load_data_table_files() {

		// Load Analysis Classes
		$classes_to_load = array(	'list-table',
									'analysis-overview',
									'analysis-user-profile',
									'analysis-course',
									'analysis-lesson'
									);
		foreach ( $classes_to_load as $class_file ) {
            Sensei()->load_class( $class_file );
		} // End For Loop
	} // End load_data_table_files()

	/**
	 * load_data_object creates new instance of class
	 * @param  string  $name          Name of class
	 * @param  integer $data          constructor arguments
	 * @param  undefined  $optional_data optional constructor arguments
	 * @return object                 class instance object
	 */
	public function load_data_object( $name = '', $data = 0, $optional_data = null ) {
		// Load Analysis data
		$object_name = 'Sensei_Analysis_' . $name . '_List_Table';
		if ( is_null($optional_data) ) {
			$sensei_analysis_object = new $object_name( $data );
		} else {
			$sensei_analysis_object = new $object_name( $data, $optional_data );
		}
		$sensei_analysis_object->prepare_items();
		return $sensei_analysis_object;
	} // End load_data_object()

	/**
	 * analysis_page function.
	 * @since 1.0.0
	 * @access public
	 * @return void
	 */
	public function analysis_page() {

		$course_id = 0;
		$lesson_id = 0;
		$user_id = 0;
		if( isset( $_GET['course_id'] ) ) {
			$course_id = intval( $_GET['course_id'] );
		}
		if( isset( $_GET['lesson_id'] ) ) {
			$lesson_id = intval( $_GET['lesson_id'] );
		}
		if( isset( $_GET['user_id'] ) ) {
			$user_id = intval( $_GET['user_id'] );
		}
		$type = isset( $_GET['view'] ) ? esc_html( $_GET['view'] ) : false;

		if ( 0 < $lesson_id ) {
			// Viewing a specific Lesson and all its Learners
			$this->analysis_lesson_users_view( $lesson_id );
		}
		elseif ( 0 < $course_id && !$user_id && 'user' == $type ) {
			// Viewing a specific Course and all its Learners
			$this->analysis_course_users_view( $course_id );
		}
		elseif ( 0 < $course_id && 0 < $user_id ) {
			// Viewing a specific Learner on a specific Course, showing their Lessons
			$this->analysis_user_course_view( $course_id, $user_id );
		}
		elseif( 0 < $course_id ) {
			// Viewing a specific Course and all it's Lessons
			$this->analysis_course_view( $course_id );
		}
		elseif ( 0 < $user_id ) {
			// Viewing a specific Learner, and their Courses
			$this->analysis_user_profile_view( $user_id );
		}
		else {
			// Overview of all Learners, all Courses, or all Lessons
			$this->analysis_default_view( $type );
		} // End If Statement
	} // End analysis_page()

	/**
	 * Default view for analysis, showing an overview of all Learners, Courses and Lessons
	 * @since  1.2.0
	 * @return void
	 */
	public function analysis_default_view( $type ) {

		// Load Analysis data
		$sensei_analysis_overview = $this->load_data_object( 'Overview', $type );
		// Wrappers
		do_action( 'analysis_before_container' );
		do_action( 'analysis_wrapper_container', 'top' );
		$this->analysis_headers();
		?>
		<div id="poststuff" class="sensei-analysis-wrap">
			<div class="sensei-analysis-sidebar">
				<?php
				do_action( 'sensei_analysis_before_stats_boxes' );
				foreach ( $sensei_analysis_overview->stats_boxes() as $key => $value ) {
					$this->render_stats_box( esc_html( $key ), esc_html( $value ) );
				} // End For Loop
				do_action( 'sensei_analysis_after_stats_boxes' );
				?>
			</div>
			<div class="sensei-analysis-main">
				<?php $sensei_analysis_overview->display(); ?>
			</div>
			<div class="sensei-analysis-extra">
				<?php do_action( 'sensei_analysis_extra' ); ?>
			</div>
		</div>
		<?php
		do_action( 'analysis_wrapper_container', 'bottom' );
		do_action( 'analysis_after_container' );
	} // End analysis_default_view()

	/**
	 * An individual users' profile view for analysis, showing their Courses
	 * @since  1.2.0
	 * @param integer $user_id
	 * @return void
	 */
	public function analysis_user_profile_view( $user_id ) {

This method seems to be duplicated in your project.

		// Load Analysis data
		$sensei_analysis_user_profile = $this->load_data_object( 'User_Profile', $user_id );
		// Wrappers
		do_action( 'analysis_before_container' );
		do_action( 'analysis_wrapper_container', 'top' );
		$this->analysis_headers( array( 'nav' => 'user_profile' ) );
		?>
		<div id="poststuff" class="sensei-analysis-wrap user-profile">
			<div class="sensei-analysis-main">
				<?php $sensei_analysis_user_profile->display(); ?>
			</div>
			<div class="sensei-analysis-extra">
				<?php do_action( 'sensei_analysis_extra' ); ?>
			</div>
		</div>
		<?php
		do_action( 'analysis_wrapper_container', 'bottom' );
		do_action( 'analysis_after_container' );
	} // End analysis_user_profile_view()

	/**
	 * An individual Course view for analysis, showing the Courses Lessons
	 * @since  1.2.0
	 * @param integer $course_id
	 * @return void
	 */
	public function analysis_course_view( $course_id ) {

This method seems to be duplicated in your project.

		// Load Analysis data
		$sensei_analysis_course = $this->load_data_object( 'Course', $course_id );
		// Wrappers
		do_action( 'analysis_before_container' );
		do_action( 'analysis_wrapper_container', 'top' );
		$this->analysis_headers( array( 'nav' => 'course' ) );
		?>
		<div id="poststuff" class="sensei-analysis-wrap course-profile">
			<div class="sensei-analysis-main">
				<?php $sensei_analysis_course->display(); ?>
			</div>
			<div class="sensei-analysis-extra">
				<?php do_action( 'sensei_analysis_extra' ); ?>
			</div>
		</div>
		<?php
		do_action( 'analysis_wrapper_container', 'bottom' );
		do_action( 'analysis_after_container' );
	} // End analysis_course_view()

	/**
	 * An individual Course view for analysis, showing a specific Learners Lessons
	 * @since  1.2.0
	 * @param integer $course_id
	 * @param integer $user_id
	 * @return void
	 */
	public function analysis_user_course_view( $course_id, $user_id ) {

This method seems to be duplicated in your project.

		// Load Analysis data
		$sensei_analysis_user_course = $this->load_data_object( 'Course', $course_id, $user_id );

$user_id is of type integer, but the function expects a object<undefined>|null.

		// Wrappers
		do_action( 'analysis_before_container' );
		do_action( 'analysis_wrapper_container', 'top' );
		$this->analysis_headers( array( 'nav' => 'user_course' ) );
		?>
		<div id="poststuff" class="sensei-analysis-wrap course-profile">
			<div class="sensei-analysis-main">
				<?php $sensei_analysis_user_course->display(); ?>
			</div>
			<div class="sensei-analysis-extra">
				<?php do_action( 'sensei_analysis_extra' ); ?>
			</div>
		</div>
		<?php
		do_action( 'analysis_wrapper_container', 'bottom' );
		do_action( 'analysis_after_container' );
	} // End analysis_user_course_view()

	/**
	 * An individual Course view for analysis, showing all the Learners
	 * @since  1.2.0
	 * @param integer $course_id
	 * @return void
	 */
	public function analysis_course_users_view( $course_id ) {

This method seems to be duplicated in your project.

		// Load Analysis data
		$sensei_analysis_course_users = $this->load_data_object( 'Course', $course_id );
		// Wrappers
		do_action( 'analysis_before_container' );
		do_action( 'analysis_wrapper_container', 'top' );
		$this->analysis_headers( array( 'nav' => 'course_users' ) );
		?>
		<div id="poststuff" class="sensei-analysis-wrap course-profile">
			<div class="sensei-analysis-main">
				<?php $sensei_analysis_course_users->display(); ?>
			</div>
			<div class="sensei-analysis-extra">
				<?php do_action( 'sensei_analysis_extra' ); ?>
			</div>
		</div>
		<?php
		do_action( 'analysis_wrapper_container', 'bottom' );
		do_action( 'analysis_after_container' );
	} // End analysis_course_users_view()

	/**
	 * An individual Lesson view for analysis, showing all the Learners
	 * @since  1.2.0
	 * @param integer $lesson_id
	 * @return void
	 */
	public function analysis_lesson_users_view( $lesson_id ) {

This method seems to be duplicated in your project.

		// Load Analysis data
		$sensei_analysis_lesson_users = $this->load_data_object( 'Lesson', $lesson_id );
		// Wrappers
		do_action( 'analysis_before_container' );
		do_action( 'analysis_wrapper_container', 'top' );
		$this->analysis_headers( array( 'nav' => 'lesson_users' ) );
		?>
		<div id="poststuff" class="sensei-analysis-wrap course-profile">
			<div class="sensei-analysis-main">
				<?php $sensei_analysis_lesson_users->display(); ?>
			</div>
			<div class="sensei-analysis-extra">
				<?php do_action( 'sensei_analysis_extra' ); ?>
			</div>
		</div>
		<?php
		do_action( 'analysis_wrapper_container', 'bottom' );
		do_action( 'analysis_after_container' );
	} // End analysis_lesson_users_view()

	/**
	 * render_stats_box outputs stats boxes
	 * @since  1.2.0
	 * @param  $title string title of stat
	 * @param  $data string stats data
	 * @return void
	 */
	public function render_stats_box( $title, $data ) {
		?><div class="postbox">
			<h2><span><?php echo $title; ?></span></h2>
			<div class="inside">
				<p class="stat"><?php echo $data; ?></p>
			</div>
		</div><?php
	} // End render_stats_box()

	/**
	 * analysis_headers outputs analysis general headers
	 * @since  1.2.0
	 * @return void
	 */
	public function analysis_headers( $args = array( 'nav' => 'default' ) ) {

This method seems to be duplicated in your project.

		$function = 'analysis_' . $args['nav'] . '_nav';
		$this->$function();
		?>
			<p class="powered-by-woo">

                <?php _e( 'Powered by', 'woothemes-sensei' ); ?>

                <a href="http://www.woothemes.com/" title="WooThemes">

                    <img src="<?php echo Sensei()->plugin_url; ?>assets/images/woothemes.png" alt="WooThemes" />

                </a>

            </p>

		<?php
		do_action( 'sensei_analysis_after_headers' );
	} // End analysis_headers()

	/**
	 * wrapper_container wrapper for analysis area
	 * @since  1.2.0
	 * @param $which string
	 * @return void
	 */
	public function wrapper_container( $which ) {
		if ( 'top' == $which ) {
			?><div id="woothemes-sensei" class="wrap woothemes-sensei"><?php
		} elseif ( 'bottom' == $which ) {
			?></div><!--/#woothemes-sensei--><?php
		} // End If Statement
	} // End wrapper_container()

	/**
	 * Default nav area for Analysis, overview of Learners, Courses and Lessons
	 * @since  1.2.0
	 * @return void
	 */
	public function analysis_default_nav() {

		$title = sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( array( 'page' => $this->page_slug ), admin_url( 'admin.php' ) ) ), esc_html( $this->name ) );
		$view = isset($_GET['view']) ? esc_html( $_GET['view'] ) : '';
		switch ( $view ) { 
			case 'courses' :
				$title .= sprintf( '&nbsp;&nbsp;<span class="course-title">&gt;&nbsp;&nbsp;%s</span>', __( 'Courses', 'woothemes-sensei' ) );
				break;

			case 'lessons' :
				$title .= sprintf( '&nbsp;&nbsp;<span class="lesson-title">&gt;&nbsp;&nbsp;%s</span>', __( 'Lessons', 'woothemes-sensei' ) );
				break;

			case 'users' :
			default :
				$title .= sprintf( '&nbsp;&nbsp;<span class="user-title">&gt;&nbsp;&nbsp;%s</span>', __( 'Learners', 'woothemes-sensei' ) );
				break;
		}
		?>
			<h1><?php echo apply_filters( 'sensei_analysis_nav_title', $title ); ?></h1>
		<?php
	} // End analysis_default_nav()

	/**
	 * Nav area for Analysis of a specific User profile
	 * @since  1.2.0
	 * @return void
	 */
	public function analysis_user_profile_nav() {

		$title = sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( array( 'page' => $this->page_slug ), admin_url( 'admin.php' ) ) ), esc_html( $this->name ) );
		if ( isset( $_GET['user_id'] ) && 0 < intval( $_GET['user_id'] ) ) {

			$user_id = intval( $_GET['user_id'] );
			$url = esc_url( add_query_arg( array( 'page' => $this->page_slug, 'user' => $user_id ), admin_url( 'admin.php' ) ) );
            $user_name = Sensei_Learner::get_full_name( $user_id );
			$title .= sprintf( '&nbsp;&nbsp;<span class="user-title">&gt;&nbsp;&nbsp;<a href="%s">%s</a></span>', $url, $user_name );

		} // End If Statement
		?>
			<h1><?php echo apply_filters( 'sensei_analysis_nav_title', $title ); ?></h1>
		<?php
	} // End analysis_user_profile_nav()

	/**
	 * Nav area for Analysis of a specific Course and its Lessons, specific to a User
	 * @since  1.2.0
	 * @return void
	 */
	public function analysis_user_course_nav() {

		$title = sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( array( 'page' => $this->page_slug ), admin_url( 'admin.php' ) ) ), esc_html( $this->name ) );
		if ( isset( $_GET['user_id'] ) && 0 < intval( $_GET['user_id'] ) ) {
			$user_id = intval( $_GET['user_id'] );
			$user_data = get_userdata( $user_id );
			$url = add_query_arg( array( 'page' => $this->page_slug, 'user_id' => $user_id ), admin_url( 'admin.php' ) );
            $user_name = Sensei_Learner::get_full_name( $user_id );
            $title .= sprintf( '&nbsp;&nbsp;<span class="user-title">&gt;&nbsp;&nbsp;<a href="%s">%s</a></span>', $url, $user_name );
			$title .= sprintf( '&nbsp;&nbsp;<span class="user-title">&gt;&nbsp;&nbsp;<a href="%s">%s</a></span>', esc_url( $url ), $user_data->display_name );
		} // End If Statement
		if ( isset( $_GET['course_id'] ) ) { 
			$course_id = intval( $_GET['course_id'] );
			$url = add_query_arg( array( 'page' => $this->page_slug, 'course_id' => $course_id ), admin_url( 'admin.php' ) );
			$title .= sprintf( '&nbsp;&nbsp;<span class="course-title">&gt;&nbsp;&nbsp;<a href="%s">%s</a></span>', esc_url( $url ), get_the_title( $course_id ) );
		}
		?>
			<h1><?php echo apply_filters( 'sensei_analysis_nav_title', $title ); ?></h1>
		<?php
	} // End analysis_user_course_nav()

	/**
	 * Nav area for Analysis of a specific Course and displaying its Lessons
	 * @since  1.2.0
	 * @return void
	 */
	public function analysis_course_nav() {

This method seems to be duplicated in your project.

		$title = sprintf( '<a href="%s">%s</a>', add_query_arg( array( 'page' => $this->page_slug ), admin_url( 'admin.php' ) ), esc_html( $this->name ) );
		if ( isset( $_GET['course_id'] ) ) { 
			$course_id = intval( $_GET['course_id'] );
			$url = add_query_arg( array( 'page' => $this->page_slug, 'course_id' => $course_id ), admin_url( 'admin.php' ) );
			$title .= sprintf( '&nbsp;&nbsp;<span class="course-title">&gt;&nbsp;&nbsp;<a href="%s">%s</a></span>',esc_url( $url ), get_the_title( $course_id ) );
		}
		?>
			<h1><?php echo apply_filters( 'sensei_analysis_nav_title', $title ); ?></h1>
		<?php
	} // End analysis_course_nav()

	/**
	 * Nav area for Analysis of a specific Course displaying its Users
	 * @since  1.2.0
	 * @return void
	 */
	public function analysis_course_users_nav() {

This method seems to be duplicated in your project.

		$title = sprintf( '<a href="%s">%s</a>', add_query_arg( array( 'page' => $this->page_slug ), admin_url( 'admin.php' ) ), esc_html( $this->name ) );
		if ( isset( $_GET['course_id'] ) ) { 
			$course_id = intval( $_GET['course_id'] );
			$url = add_query_arg( array( 'page' => $this->page_slug, 'course_id' => $course_id ), admin_url( 'admin.php' ) );
			$title .= sprintf( '&nbsp;&nbsp;<span class="course-title">&gt;&nbsp;&nbsp;<a href="%s">%s</a></span>', esc_url( $url ), get_the_title( $course_id ) );
		}
		?>
			<h1><?php echo apply_filters( 'sensei_analysis_nav_title', $title ); ?></h1>
		<?php
	} // End analysis_course_users_nav()

	/**
	 * Nav area for Analysis of a specific Lesson displaying its Users
	 * @since  1.2.0
	 * @return void
	 */
	public function analysis_lesson_users_nav() {

		$title = sprintf( '<a href="%s">%s</a>', add_query_arg( array( 'page' => $this->page_slug ), admin_url( 'admin.php' ) ), esc_html( $this->name ) );
		if ( isset( $_GET['lesson_id'] ) ) { 
			$lesson_id = intval( $_GET['lesson_id'] );
			$course_id = intval( get_post_meta( $lesson_id, '_lesson_course', true ) );
			$url = add_query_arg( array( 'page' => $this->page_slug, 'course_id' => $course_id ), admin_url( 'admin.php' ) );
			$title .= sprintf( '&nbsp;&nbsp;<span class="course-title">&gt;&nbsp;&nbsp;<a href="%s">%s</a></span>', esc_url( $url ), get_the_title( $course_id ) );
			$url = add_query_arg( array( 'page' => $this->page_slug, 'lesson_id' => $lesson_id ), admin_url( 'admin.php' ) );
			$title .= sprintf( '&nbsp;&nbsp;<span class="lesson-title">&gt;&nbsp;&nbsp;<a href="%s">%s</a></span>', esc_url( $url ), get_the_title( $lesson_id ) );
		}
		?>
			<h1><?php echo apply_filters( 'sensei_analysis_nav_title', $title ); ?></h1>
		<?php
	} // End analysis_lesson_users_nav()

	/**
	 * Handles CSV export requests
	 * @since  1.2.0
	 * @return void
	 */
	public function report_download_page() {
		// Check if is a report
		if ( !empty( $_GET['sensei_report_download'] ) ) {
			$report = sanitize_text_field( $_GET['sensei_report_download'] );

			// Simple verification to ensure intent, Note that a Nonce is per user, so the URL can't be shared
			if ( !wp_verify_nonce( $_REQUEST['_sdl_nonce'], 'sensei_csv_download-' . $report ) ) {
				wp_die( __('Invalid request', 'woothemes-sensei') );
			}

			// Setup the variables we might need
			$filename = apply_filters( 'sensei_csv_export_filename', $report );
			$course_id = 0;
			$lesson_id = 0;
			$user_id = 0;
			if( isset( $_GET['course_id'] ) ) {
				$course_id = intval( $_GET['course_id'] );
			}
			if( isset( $_GET['lesson_id'] ) ) {
				$lesson_id = intval( $_GET['lesson_id'] );
			}
			if( isset( $_GET['user_id'] ) ) {
				$user_id = intval( $_GET['user_id'] );
			}
			$type = isset( $_GET['view'] ) ? esc_html( $_GET['view'] ) : false;

			if ( 0 < $lesson_id ) {
				// Viewing a specific Lesson and all its Learners
				$sensei_analysis_report_object = $this->load_report_object( 'Lesson', $lesson_id );
			}
			elseif ( 0 < $course_id && 0 < $user_id ) {
				// Viewing a specific User on a specific Course
				$sensei_analysis_report_object = $this->load_report_object( 'Course', $course_id, $user_id );

$user_id is of type integer, but the function expects a object<undefined>|null.

			}
			elseif( 0 < $course_id ) {
				// Viewing a specific Course and all it's Lessons, or it's Learners
				$sensei_analysis_report_object = $this->load_report_object( 'Course', $course_id );
			}
			elseif ( 0 < $user_id ) {
				// Viewing a specific Learner, and their Courses
				$sensei_analysis_report_object = $this->load_report_object( 'User_Profile', $user_id );
			}
			else {
				// Overview of all Learners, all Courses, or all Lessons
				$sensei_analysis_report_object = $this->load_report_object( 'Overview', $type );
			} // End If Statement

			// Handle the headers
			$this->report_set_headers( $filename );

			// Collate the data, there could be many different reports for a single object
			$report_data_array = $sensei_analysis_report_object->generate_report( $report );

			// Output the data
			$this->report_write_download( $report_data_array );

			// Cleanly exit
			exit;
		} // End wp_query check
	} // End report_download_page()

	/**
	 * Sets headers for CSV reporting export
	 * @since  1.2.0
	 * @param  string $filename name of report file
	 * @return void
	 */
	public function report_set_headers( $filename = '' ) {
		header( 'Content-Type: text/csv' );
		header( 'Content-Disposition: attachment;filename=' . $filename . '.csv');
	} // End report_set_headers()

	/**
	 * Loads the right object for CSV reporting
	 * @since  1.2.0
	 * @param  string  $name          Name of class
	 * @param  integer $data          constructor arguments
	 * @param  undefined  $optional_data optional constructor arguments
	 * @return object                 class instance object
	 */
	public function load_report_object( $name = '', $data = 0, $optional_data = null ) {
		$object_name = 'WooThemes_Sensei_Analysis_' . $name . '_List_Table';
		if ( is_null($optional_data) ) {
			$sensei_analysis_report_object = new $object_name( $data );
		} else {
			$sensei_analysis_report_object = new $object_name( $data, $optional_data );
		}
		return $sensei_analysis_report_object;
	} // End load_report_object()

	/**
	 * Write array data to CSV
	 * @since  1.2.0
	 * @param  array  $report_data data array
	 * @return void
	 */
	public function report_write_download( $report_data = array() ) {
		$fp = fopen('php://output', 'w');
		foreach ($report_data as $row) {
			fputcsv($fp, $row);
		} // End For Loop
		fclose($fp);
	} // End report_write_download()

	/**
	 * Adds display_name to the default list of search columns for the WP User Object
	 * @since  1.4.5
	 * @param  array $search_columns         array of default user columns to search
	 * @param  string $search                search string
	 * @param  object $user_query_object     WP_User_Query Object
	 * @return array $search_columns         array of user columns to search
	 */
	public function user_search_columns_filter( $search_columns, $search, $user_query_object ) {

The parameter $search is not used and could be removed.

The parameter $user_query_object is not used and could be removed.

		// Alter $search_columns to include the fields you want to search on
		array_push( $search_columns, 'display_name' );
		return $search_columns;
	}

} // End Class

/**
 * Class WooThemes_Sensei_Analysis
 * @ignore only for backward compatibility
 * @since 1.9.0
 */
class WooThemes_Sensei_Analysis extends Sensei_Analysis {}