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[CoursePress] - Enrollment Expire - Course Duration
<?php
/**
* Plugin Name: [CoursePress] - Enrollment Expire
* Plugin URI: https://premium.wpmudev.org/
* Description: Withdtaws students from course after a certain period has passed since enrollement date
* Author: Panos Lyrakis @ WPMUDEV
* Author URI: https://premium.wpmudev.org/
* License: GPLv2 or later
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
if ( ! class_exists( 'WPMUDEV_CP_Course_Duration' ) ) {
class WPMUDEV_CP_Course_Duration {
private static $_instance = null;
private $post_type;
public static function get_instance() {
if( is_null( self::$_instance ) ){
self::$_instance = new WPMUDEV_CP_Course_Duration();
}
return self::$_instance;
}
private function __construct() {
if ( ! class_exists( 'CoursePress_Data_Course' ) ) {
return;
}
$this->post_type = CoursePress_Data_Course::get_post_type_name();
// Admin
add_filter( "coursepress_allowed_meta_boxes", array( $this, 'allow_meta_box' ), 20 );
add_action( "add_meta_boxes_{$this->post_type}", array( $this, 'add_meta_box' ), 10 );
add_action( "save_post_{$this->post_type}", array( $this, 'save_meta' ), 10, 2 );
add_action( "admin_footer", array( $this, 'js' ) );
//Front
add_filter( "coursepress_template_dashboard_page", array( $this, 'dashboard_template' ), 10, 3 );
add_shortcode( "course_list_ext", array( $this, 'course_list' ) );
// Set cron with custom url. Needs to be set only once
// Set the cron by visiting : http://site.com/wp-admin/tools.php?_cp_schedule_enrollment_expire=yes
add_action( "load-tools.php", array( $this, 'register_cron' ) );
add_action( "_cp_schedule_enrollment_expire", array( $this, 'scheduled_expiration_check' ) );
// Shortcode
add_shortcode( 'cp_enrollment_expire', array( $this, 'shortcode' ) );
}
/**
* Add our meta_box to the allowed Course meta_boxes
*/
public function allow_meta_box( $allowed ) {
$allowed[] = 'cp_course_duration';
return $allowed;
}
public function add_meta_box() {
add_meta_box(
'cp_course_duration',
__( 'Course duration' ),
array( $this, 'meta_box_content' ),
$this->post_type,
'side',
'low'
);
}
public function meta_box_content( $post ) {
$duration = get_post_meta( $post->ID, '_wpmudev_cp_course_duration', true );
$unit = isset( $duration['unit'] ) ? $duration['unit'] : '';
$amount = isset( $duration['amount'] ) ? $duration['amount'] : '';
?>
<h3><?php _e( 'Course duration after enrollment' ); ?></h3>
<em><?php _e( 'Leave the Duration field to 0 so it won\'t add any time limit' ) ?></em>
<p>
<label><?php _e( 'Duration unit' ); ?></label>
<select
id="_wpmudev_cp_course_duration_unit">
<option value="d" <?php selected( $unit, 'd' ); ?> ><?php _e( 'Days' ); ?></option>
<option value="m" <?php selected( $unit, 'm' ); ?> ><?php _e( 'Months' ); ?></option>
</select>
</p>
<p>
<label><?php _e( 'Duration amount' ); ?></label>
<select
id="_wpmudev_cp_course_duration_amount">
<?php for ( $a=0; $a <= 50; $a++ ): ?>
<option value="<?php echo $a; ?>" <?php selected( $amount, $a ); ?> ><?php echo $a; ?></option>
<?php endfor; ?>
</select>
</p>
<?php
}
public function js() {
if (
! function_exists( 'get_current_screen' ) ||
'course' != get_current_screen()->id ||
( isset( $_GET['tab'] ) && 'setup' != $_GET['tab'] )
) {
return;
}
?>
<script type="text/javascript">
( function( $ ) {
var _wpmudev_cp_course_duration_saved = false;
var _wpmudev_cp_getUrlParameter = function getUrlParameter( sParam, url ) {
if ( url.indexOf( '?' ) === -1 ) {
return false;
}
var sURLAtts = url.split( '?' ),
sURLVariables = sURLAtts[1].split( '&' ),
sParameterName,
i;
for ( i = 0; i < sURLVariables.length; i++ ) {
sParameterName = sURLVariables[i].split( '=' );
if (sParameterName[0] === sParam) {
return sParameterName[1] === undefined ? true : sParameterName[1];
}
}
};
$.ajaxSetup( {
beforeSend: function( jqXHR, settings ) {
if ( typeof settings.url == "undefined" || 'update_course' != _wpmudev_cp_getUrlParameter( 'action', settings.url ) ) {
return true;
}
if ( _wpmudev_cp_course_duration_saved ) {
return true;
}
_wpmudev_cp_course_duration_saved = true;
var data = JSON.parse( settings.data ),
duration_unit = $( '#_wpmudev_cp_course_duration_unit' ).val(),
duration_amount = $( '#_wpmudev_cp_course_duration_amount' ).val();
data.data["_wpmudev_cp_course_duration_unit"] = duration_unit;
data.data["_wpmudev_cp_course_duration_amount"] = duration_amount;
settings.data = JSON.stringify( data );
return true;
}
});
$( document ).ready(function(){
$( '#_wpmudev_cp_course_duration_unit' ).on( 'change', function(){ _wpmudev_cp_course_duration_saved = false; } );
$( '#_wpmudev_cp_course_duration_amount' ).on( 'change', function(){ _wpmudev_cp_course_duration_saved = false; } );
});
} ) ( jQuery );
</script>
<?php
}
public function save_meta( $post_id, $post ) {
if ( ! current_user_can( 'edit_post', $post_id ) ) {
return $post_id;
}
$_data = json_decode( file_get_contents( 'php://input' ) );
$data = isset( $_data->data ) ? $_data->data : false;
if ( ! $data ) {
return;
}
$unit = ( isset( $data->_wpmudev_cp_course_duration_unit ) && in_array( $data->_wpmudev_cp_course_duration_unit, array('d','m') ) ) ? $data->_wpmudev_cp_course_duration_unit : false;
$amount = isset( $data->_wpmudev_cp_course_duration_amount ) ? (int) $data->_wpmudev_cp_course_duration_amount : false;
// If not set, or soemthing went wrong, better do nothing
if ( ! $unit || ! $amount ) {
return;
}
$duration = array(
'unit' => $unit,
'amount' => $amount
);
update_post_meta( $post_id, '_wpmudev_cp_course_duration', $duration );
}
public function dashboard_template( $template, $user_id, $a ) {
$template = '<div class="coursepress-dashboard-wrapper">
[course_list instructor="%1$s" dashboard="true"]
[course_list facilitator="%1$s" dashboard="true"]
[course_list_ext student="%1$s" dashboard="true" current_label="%2$s" show_labels="true"]
</div>';
$template = sprintf( $template, $user_id, __( 'Enrolled Courses', 'coursepress' ) );
return $template;
}
public function course_list( $atts, $content ) {
CoursePress_Core::$is_cp_page = true;
$atts = CoursePress_Helper_Utility::sanitize_recursive(
shortcode_atts(
array(
'completed_label' => __( 'Completed courses', 'coursepress' ),
'context' => 'all', // <blank>, enrolled, completed
'current_label' => __( 'Current Courses', 'coursepress' ),
'dashboard' => false,
'facilitator_label' => __( 'Facilitated Courses', 'coursepress' ),
'facilitator' => '',
'future_label' => __( 'Starting soon', 'coursepress' ),
'incomplete_label' => __( 'Incomplete courses', 'coursepress' ),
'instructor_msg' => __( 'The Instructor does not have any courses assigned yet.', 'coursepress' ),
'instructor' => '', // Note, one or the other
'limit' => - 1,
'manage_label' => __( 'Manage Courses', 'coursepress' ),
'order' => 'ASC',
'orderby' => 'meta', /// possible values: meta, title
'past_label' => __( 'Past courses', 'coursepress' ),
'show_labels' => false,
'status' => 'publish',
'student_msg' => sprintf( __( 'You are not enrolled in any courses. <a href="%s">See available courses.</a>', 'coursepress' ), CoursePress_Core::get_slug( 'course/', true ) ),
'student' => '', // If both student and instructor is specified only student will be used
'suggested_label' => __( 'Suggested courses', 'coursepress' ),
'suggested_msg' => __( 'You are not enrolled in any courses.<br />Here are a few you might like, or <a href="%s">see all available courses.</a>', 'coursepress' ),
'show_withdraw_link' => false,
'categories' => '',
),
$atts,
'course_page'
)
);
$instructor_list = false;
$student_list = false;
$atts['dashboard'] = cp_is_true( $atts['dashboard'] );
$courses = array();
$content = '';
$student = 0;
$include_ids = array();
/**
* Sanitize show_withdraw_link
*/
if ( empty( $atts['student'] ) || 'incomplete' != $atts['status'] ) {
$atts['show_withdraw_link'] = false;
}
if ( ! empty( $atts['instructor'] ) ) {
$include_ids = array();
$instructors = explode( ',', $atts['instructor'] );
if ( ! empty( $instructors ) ) {
foreach ( $instructors as $ins ) {
$ins = (int) $ins;
if ( $ins ) {
$course_ids = CoursePress_Data_Instructor::get_assigned_courses_ids( $ins, $atts['status'] );
if ( $course_ids ) {
$include_ids = array_unique( array_merge( $include_ids, $course_ids ) );
}
}
}
} else {
$instructor = (int) $atts['instructor'];
if ( $instructor ) {
$course_ids = CoursePress_Data_Instructor::get_assigned_courses_ids( $instructor, $atts['status'] );
if ( $course_ids ) {
$include_ids = array_unique( array_merge( $include_ids, $course_ids ) );
}
}
}
$instructor_list = true;
if ( empty( $include_ids ) ) { return ''; }
}
if ( ! empty( $atts['facilitator'] ) ) {
$facilitator = $atts['facilitator'];
$atts['context'] = 'facilitator';
$include_ids = CoursePress_Data_Facilitator::get_facilitated_courses( $facilitator, 'publish', true );
if ( empty( $include_ids ) ) {
return '';
}
}
if ( ! empty( $atts['student'] ) ) {
$include_ids = array();
$students = explode( ',', $atts['student'] );
foreach ( $students as $student ) {
$student = (int) $student;
if ( $student ) {
$courses_ids = array();
$courses_to_add = CoursePress_Data_Student::get_enrolled_courses_ids( $student );
if ( isset( $atts['status'] ) ) {
foreach ( $courses_to_add as $course_id ) {
$status = get_post_status( $course_id );
if ( 'publish' != $status ) {
continue;
}
$add = true;
if ( 'publish' != $atts['status'] ) {
$status = CoursePress_Data_Student::get_course_status( $course_id, $student, false );
if ( 'completed' == $atts['status'] ) {
$add = false;
if ( 'certified' == $status ) {
$add = true;
}
} else {
if ( 'certified' == $status ) {
$add = false;
}
}
}
if ( $add ) {
$courses_ids[] = $course_id;
}
}
} else {
$courses_ids = $courses_to_add;
}
if ( $courses_ids ) {
$include_ids = array_unique( array_merge( $include_ids, $courses_ids ) );
}
}
}
$student_list = true;
}
$post_args = array(
'order' => $atts['order'],
'post_type' => CoursePress_Data_Course::get_post_type_name(),
'post_status' => $atts['status'],
'posts_per_page' => (int) $atts['limit'],
'suppress_filters' => true,
'meta_key' => 'cp_course_start_date',
'orderby' => 'meta_value_num',
);
/**
* categories
*/
if ( ! empty( $atts['categories'] ) ) {
$post_args['tax_query'] = array(
array(
'taxonomy' => CoursePress_Data_Course::get_post_category_name(),
'field' => 'slug',
'terms' => preg_split( '/[, ]+/', $atts['categories'] ),
),
);
}
$test_empty_courses_ids = false;
switch ( $atts['context'] ) {
case 'enrolled':
$test_empty_courses_ids = true;
$user_id = get_current_user_id();
$include_ids = CoursePress_Data_Student::get_enrolled_courses_ids( $user_id );
break;
case 'incomplete':
$test_empty_courses_ids = true;
$user_id = get_current_user_id();
$ids = CoursePress_Data_Student::get_enrolled_courses_ids( $user_id );
foreach ( $ids as $course_id ) {
$status = CoursePress_Data_Student::get_course_status( $course_id, $user_id, false );
if ( 'certified' != $status ) {
$include_ids[] = $course_id;
}
}
break;
case 'completed':
$test_empty_courses_ids = true;
$user_id = get_current_user_id();
$ids = CoursePress_Data_Student::get_enrolled_courses_ids( $user_id );
foreach ( $ids as $course_id ) {
$status = CoursePress_Data_Student::get_course_status( $course_id, $user_id, false );
if ( 'certified' == $status ) {
$include_ids[] = $course_id;
}
}
break;
case 'future':
unset( $post_args['meta_key'] );
$post_args['meta_query'] = array(
array(
'key' => 'cp_course_start_date',
'value' => time(),
'type' => 'NUMERIC',
'compare' => '>',
),
);
break;
case 'past':
unset( $post_args['meta_key'] );
$post_args['meta_query'] = array(
'relation' => 'AND',
array(
'key' => 'cp_course_end_date',
'compare' => 'EXISTS',
),
array(
'key' => 'cp_course_end_date',
'value' => 0,
'type' => 'NUMERIC',
'compare' => '>',
),
array(
'key' => 'cp_course_end_date',
'value' => time(),
'type' => 'NUMERIC',
'compare' => '<',
),
);
break;
case 'manage':
$user_id = get_current_user_id();
$test_empty_courses_ids = true;
if ( CoursePress_Data_Capabilities::can_manage_courses( $user_id ) ) {
$local_args = array(
'post_type' => CoursePress_Data_Course::get_post_type_name(),
'nopaging' => true,
'fields' => 'ids',
);
$include_ids = get_posts( $local_args );
} else {
$include_ids = CoursePress_Data_Instructor::get_assigned_courses_ids( $user_id );
if ( empty( $include_ids ) ) {
$include_ids = CoursePress_Data_Facilitator::get_facilitated_courses( $user_id, array( 'all' ), true, 0, -1 );
}
}
break;
case 'all':
$atts['orderby'] = strtolower( $atts['orderby'] );
switch ( $atts['orderby'] ) {
case 'title':
case 'post_title':
$post_args['orderby'] = 'title';
break;
default:
$post_args['orderby'] = 'meta_value_num';
break;
}
break;
}
if ( $test_empty_courses_ids && empty( $include_ids ) ) {
/**
* do nothing if we have empty list
*/
$courses = array();
} else if ( ( ( $student_list || $instructor_list ) && ! empty( $include_ids ) ) || ( ! $student_list && ! $instructor_list ) ) {
if ( ! empty( $include_ids ) ) {
$post_args = wp_parse_args( array( 'post__in' => $include_ids ), $post_args );
}
$courses = get_posts( $post_args );
}
$counter = 0;
if ( ! $atts['dashboard'] ) {
foreach ( $courses as $course ) {
$shortcode_attributes = array(
'course_id' => $course->ID,
'show_withdraw_link' => $atts['show_withdraw_link'],
);
$shortcode_attributes = CoursePress_Helper_Utility::convert_array_to_params( $shortcode_attributes );
$content .= do_shortcode( '[course_list_box ' . $shortcode_attributes . ']' );
$counter += 1;
}
} else {
if ( $student_list ) {
$my_courses = CoursePress_Data_Student::my_courses( $student, $courses );
$context = $atts['context'];
if ( isset( $my_courses[ $context ] ) ) {
$courses = $my_courses[ $context ];
}
$courses = array_filter( $courses );
if ( empty( $courses ) ) {
if ( $atts['dashboard'] ) {
$content .= sprintf( '<p class="message">%s</p>', esc_html__( 'You are not enrolled to any course.', 'coursepress' ) );
}
} else {
$counter += count( $courses );
$content .= $this->course_list_table( $courses );
}
} else {
foreach ( $courses as $course ) {
$course_url = get_edit_post_link( $course->ID );
$content .= do_shortcode( '[course_list_box course_id="' . $course->ID . '" override_button_text="' . esc_attr__( 'Manage Course', 'coursepress' ) . '" override_button_link="' . esc_url( $course_url ) . '"]' );
$counter += 1;
}
}
}
$context = $atts['dashboard'] && $instructor_list ? 'manage' : $atts['context'];
if ( ( $atts['dashboard'] && ! empty( $counter ) ) || ! empty( $atts['show_labels'] ) ) {
$label = '';
$show_empty = false;
switch ( $context ) {
case 'enrolled':
case 'current':
case 'all':
$label = $atts['current_label'];
if ( 0 == $counter ) {
$show_empty = true;
$content = sprintf(
'<p class="message">%s</p>',
sprintf(
$atts['student_msg'],
esc_attr( '/'.CoursePress_Core::get_setting( 'slugs/course', 'courses' ) )
)
);
}
break;
case 'future':
$label = $atts['future_label'];
break;
case 'incomplete':
$label = $atts['incomplete_label'];
break;
case 'completed':
$label = $atts['completed_label'];
break;
case 'past':
$label = $atts['past_label'];
break;
case 'manage':
$label = $atts['manage_label'];
break;
case 'facilitator':
$label = $atts['facilitator_label'];
break;
}
if ( $counter || ( 0 === $counter && $show_empty ) ) {
$content = '<div class="dashboard-course-list ' . esc_attr( $context ) . '">' .
'<h3 class="section-title">' . esc_html( $label ) . '</h3>' .
$content .
'</div>';
}
} elseif ( $atts['dashboard'] && 'enrolled' === $context ) {
$label = $atts['suggested_label'];
$message = sprintf( $atts['suggested_msg'], esc_url( CoursePress_Core::get_slug( 'courses', true ) ) );
$content = '<div class="dashboard-course-list suggested">' .
'<h3 class="section-title">' . esc_html( $label ) . '</h3>' .
'<p>' . $message . '</p>' .
do_shortcode( '[course_random featured_title="" media_type="image" media_priority="image"]' ) .
'</div>';
}
return $content;
}
public function course_list_table( $courses = array() ) {
if ( ! is_array( $courses ) || empty( $courses ) ) {
return '';
}
$content = '';
$student_id = get_current_user_id();
$courses = array_filter( $courses );
if ( ! empty( $courses ) ) {
$date_format = get_option( 'date_format' );
$time_format = get_option( 'time_format' );
$table_header = '';
$table_body = '';
$certificated = CoursePress_Data_Certificate::is_enabled();
$table_columns = array(
'name' => __( 'Course', 'coursepress' ),
'date_enrolled' => __( 'Date Enrolled', 'coursepress' ),
'date_expire' => __( 'Expiration date', 'coursepress' ),
'average' => __( 'Average', 'coursepress' ),
'status' => __( 'Status', 'coursepress' ),
);
if ( $certificated ) {
$table_columns['certificate'] = __( 'Certificate', 'coursepress' );
}
foreach ( $table_columns as $column => $column_label ) {
$table_header .= sprintf( '<th class="column-%s">%s</th>', $column, $column_label );
}
$table_header .= '<th>&nbsp;</th>';
$column_keys = array_keys( $table_columns );
foreach ( $courses as $course ) {
$course_url = CoursePress_Data_Course::get_course_url( $course->ID );
$completion_status = CoursePress_Data_Student::get_course_status( $course->ID, $student_id );
$course_completed = CoursePress_Data_Student::is_course_complete( $student_id, $course->ID );
$table_body .= '<tr>';
foreach ( $column_keys as $column_key ) {
switch ( $column_key ) {
case 'name':
$table_body .= sprintf( '<td><a href="%s">%s</a></td>', esc_url( $course_url ), $course->post_title );
break;
case 'date_enrolled':
$date_enrolled = get_user_meta( $student_id, 'enrolled_course_date_' . $course->ID );
if ( is_array( $date_enrolled ) ) {
$date_enrolled = array_pop( $date_enrolled );
}
if ( empty( $date_enrolled ) ) {
$date_enrolled = sprintf(
'<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">%s</span>',
__( 'Unknown enrolled date.', 'coursepress' )
);
} else {
$date_enrolled = date_i18n( $date_format, CoursePress_Data_Course::strtotime( $date_enrolled ) );
}
$table_body .= sprintf( '<td>%s</td>', $date_enrolled );
break;
case 'date_expire':
$expiration_date = $this->get_course_expiration_date( $course->ID, $student_id );
$table_body .= sprintf( '<td>%s</td>', $expiration_date );
break;
case 'average':
$statuses = array( 'Ongoing', 'Awaiting Review' );
if ( in_array( $completion_status, $statuses ) ) {
$average = '&#8212;';
} else {
$average = CoursePress_Data_Student::average_course_responses( $student_id, $course->ID );
$average .= '%';
}
$table_body .= sprintf( '<td>%s</td>', $average );
break;
case 'status':
$table_body .= sprintf( '<td class="column-status">%s</td>', $completion_status );
break;
case 'certificate':
$download_certificate = __( 'Not available', 'coursepress' );
if ( $course_completed ) {
$certificate_link = CoursePress_Data_Certificate::get_encoded_url( $course->ID, $student_id );
$download_certificate = sprintf( '<a href="%s" class="button-primary">%s</a>', $certificate_link, __( 'Download', 'coursepress' ) );
}
$table_body .= sprintf( '<td>%s</td>', $download_certificate );
break;
}
}
// Row actions
$row_actions = array();
$allow_workbook = CoursePress_Data_Course::get_setting( $course->ID, 'allow_workbook' );
if ( $allow_workbook ) {
$workbook_url = CoursePress_Data_Student::get_workbook_url( $course->ID );
$workbook_link = sprintf( '<a href="%s" target="_blank">%s</a>', esc_url( $workbook_url ), __( 'Workbook', 'coursepress' ) );
$row_actions['workbook'] = $workbook_link;
}
$withdraw_link = add_query_arg( array(
'_wpnonce' => wp_create_nonce( 'coursepress_student_withdraw' ),
'course_id' => $course->ID,
'student_id' => $student_id,
) );
$withdraw_link = sprintf( '<a href="%s" class="cp-withdraw-student">%s</a>', esc_url( $withdraw_link ), __( 'Withdraw', 'coursepress' ) );
$row_actions['withdraw'] = $withdraw_link;
$table_body .= sprintf( '<td class="row-actions">%s</td>', implode( ' | ', $row_actions ) );
$table_body .= '</tr>';
}
$table_format = '<table class="cp-dashboard-table"><thead><tr>%s</tr></thead><tbody>%s</tbody></table>';
$content .= sprintf( $table_format, $table_header, $table_body );
}
return $content;
}
public function get_course_expiration_date( $course_id = null, $student_id = null, $format = null ) {
if ( is_null( $course_id ) || ! is_numeric( $course_id ) ) {
return false;
}
if ( is_null( $student_id ) ) {
$student_id = get_current_user_id();
}
$duration = get_post_meta( $course_id, '_wpmudev_cp_course_duration', true );
if ( ! $duration || ! is_array( $duration ) ) {
return false;
}
$date_enrolled = new DateTime( get_user_meta( $student_id, 'enrolled_course_date_' . $course_id )[0] );
$current_date = new DateTime( date( 'Y-m-d' ) );
$diff = $current_date->diff( $date_enrolled );
$unit = $duration['unit'];
$amount = $duration['amount'];
$unit = 'd' == $unit ? 'D' : 'M';
$expiration_date = $date_enrolled->add( new DateInterval( "P{$amount}{$unit}" ) );
if ( is_null( $format ) ) {
$date_format = get_option('date_format');
$time_format = get_option('time_format');
$format = "{$date_format} {$time_format}";
}
return $expiration_date->format( $format );
}
public function register_cron() {
if ( ! isset( $_GET['_cp_schedule_enrollment_expire'] ) || 'yes' != $_GET['_cp_schedule_enrollment_expire'] ) {
return;
}
if (! wp_next_scheduled ( '_cp_schedule_enrollment_expire' )) {
wp_schedule_event( time(), 'daily', '_cp_schedule_enrollment_expire' );
}
}
public function scheduled_expiration_check() {
$courses = $this->courses();
foreach ( $courses as $course ) {
$student_ids = CoursePress_Data_Course::get_student_ids( $course->ID );
foreach ( $student_ids as $student_id ) {
$this->maybe_expire_course( $course->ID, $student_id );
}
}
}
public function maybe_expire_course( $course_id = null, $student_id = null ) {
if ( is_null( $course_id ) || is_null( $student_id ) ) {
return;
}
$duration = get_post_meta( $course_id, '_wpmudev_cp_course_duration', true );
if ( ! $duration || ! is_array( $duration ) ) {
return false;
}
$unit = $duration['unit'];
$amount = $duration['amount'];
$date_enrolled = new DateTime( get_user_meta( ( int )$student_id, 'enrolled_course_date_' . ( int )$course_id )[0] );
$current_date = new DateTime( date( 'Y-m-d' ) );
$diff = $current_date->diff( $date_enrolled );
$diff_amount = 0;
if ( 'm' == $unit ) {
$diff_amount = ( $diff->format('%y') * 12 ) + $diff->format('%m');
}
else {
$diff_amount = $diff->format( '%d' );
}
if ( $diff_amount >= $amount ) {
CoursePress_Data_Course::withdraw_student( $student_id, $course_id );
}
}
public function courses() {
$post_args = array(
'post_type' => CoursePress_Data_Course::get_post_type_name(),
'post_status' => 'publish',
'posts_per_page' => -1
);
$courses = new WP_Query( $post_args );
return $courses->posts;
}
public function shortcode( $atts, $content ) {
global $post;
$atts = shortcode_atts(
array(
'course_id' => ( $post instanceof WP_Post && $this->post_type == $post->post_type ) ? $post->ID : false,
'student_id' => is_user_logged_in() ? get_current_user_id() : false,
'format' => null
), $atts, 'cp_course_duration_sc_atts' );
if ( ! $atts['course_id'] || ! $atts['student_id'] ){
return false;
}
return $this->get_course_expiration_date( $atts['course_id'], $atts['student_id'], $atts['format'] );
}
}
if ( ! function_exists( 'wpmudev_cp_course_duration' ) ) {
function wpmudev_cp_course_duration(){
return WPMUDEV_CP_Course_Duration::get_instance();
};
add_action( 'plugins_loaded', 'wpmudev_cp_course_duration', 10 );
}
}
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