Shortcode.php — Tutor LMS – eLearning and online course solution 2.0.5

tutor / classes / Shortcode.php

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Shortcode.php

376 lines

1	<?php
2	/**
3	* Class Shortcode
4	*
5	* @package TUTOR
6	*
7	* @since v.1.0.0
8	*/
9
10	namespace TUTOR;
11
12	if ( ! defined( 'ABSPATH' ) ) {
13	exit;
14	}
15
16	class Shortcode {
17
18	private $instructor_layout = array(
19	'default',
20	'cover',
21	'minimal',
22	'portrait-horizontal',
23	'minimal-horizontal',
24	);
25
26	public function __construct() {
27	add_shortcode( 'tutor_student_registration_form', array( $this, 'student_registration_form' ) );
28	add_shortcode( 'tutor_dashboard', array( $this, 'tutor_dashboard' ) );
29	add_shortcode( 'tutor_instructor_registration_form', array( $this, 'instructor_registration_form' ) );
30	add_shortcode( 'tutor_course', array( $this, 'tutor_course' ) );
31
32	add_shortcode( 'tutor_instructor_list', array( $this, 'tutor_instructor_list' ) );
33	add_action( 'tutor_options_after_instructors', array( $this, 'tutor_instructor_layout' ) );
34	add_action( 'wp_ajax_load_filtered_instructor', array( $this, 'load_filtered_instructor' ) );
35	add_action( 'wp_ajax_nopriv_load_filtered_instructor', array( $this, 'load_filtered_instructor' ) );
36
37	/**
38	* Load more categories
39	*
40	* @since 2.0.0
41	*/
42	add_action( 'wp_ajax_show_more', array( $this, 'show_more' ) );
43	add_action( 'wp_ajax_nopriv_show_more', array( $this, 'show_more' ) );
44	}
45
46	/**
47	* @return mixed
48	*
49	* Instructor Registration Shortcode
50	*
51	* @since v.1.0.0
52	*/
53	public function student_registration_form() {
54	ob_start();
55	if ( is_user_logged_in() ) {
56	tutor_load_template( 'dashboard.logged-in' );
57	} else {
58	tutor_load_template( 'dashboard.registration' );
59	}
60	return apply_filters( 'tutor/student/register', ob_get_clean() );
61	}
62
63	/**
64	* @return mixed
65	*
66	* Tutor Dashboard for students
67	*
68	* @since v.1.0.0
69	*/
70	public function tutor_dashboard() {
71	global $wp_query;
72
73	ob_start();
74	if ( is_user_logged_in() ) {
75	/**
76	* Added isset() Condition to avoid infinite loop since v.1.5.4
77	* This has cause error by others plugin, Such AS SEO
78	*/
79
80	if ( ! isset( $wp_query->query_vars['tutor_dashboard_page'] ) ) {
81	tutor_load_template( 'dashboard', array( 'is_shortcode' => true ) );
82	}
83	} else {
84	$login_url = tutor_utils()->get_option('enable_tutor_native_login', null, true, true) ? '' : wp_login_url(tutor()->current_url);
85	echo sprintf( __('Please %sSign-In%s to view this page', 'tutor'), '<a data-login_url="'.$login_url.'" href="#" class="tutor-open-login-modal">', '</a>');
86	}
87	return apply_filters( 'tutor_dashboard/index', ob_get_clean() );
88	}
89
90	/**
91	* @return mixed
92	*
93	* Instructor Registration Shortcode
94	*
95	* @since v.1.0.0
96	*/
97	public function instructor_registration_form() {
98	ob_start();
99	if ( is_user_logged_in() ) {
100	tutor_load_template( 'dashboard.instructor.logged-in' );
101	} else {
102	tutor_load_template( 'dashboard.instructor.registration' );
103	}
104	return apply_filters( 'tutor_dashboard/student/index', ob_get_clean() );
105	}
106
107	/**
108	* @param $atts
109	*
110	* @return string
111	*
112	* Shortcode for getting course
113	*/
114	public function tutor_course( $atts ) {
115	$course_post_type = tutor()->course_post_type;
116
117	$a = shortcode_atts(
118	array(
119	'post_type' => $course_post_type,
120	'post_status' => 'publish',
121
122	'id' => '',
123	'exclude_ids' => '',
124	'category' => '',
125
126	'orderby' => 'ID',
127	'order' => 'DESC',
128	'count' => 6,
129	'paged' => get_query_var( 'paged' ) ? get_query_var( 'paged' ) : 1,
130	),
131	$atts
132	);
133
134	if ( ! empty( $a['id'] ) ) {
135	$ids = (array) explode( ',', $a['id'] );
136	$a['post__in'] = $ids;
137	}
138
139	if ( ! empty( $a['exclude_ids'] ) ) {
140	$exclude_ids = (array) explode( ',', $a['exclude_ids'] );
141	$a['post__not_in'] = $exclude_ids;
142	}
143	if ( ! empty( $a['category'] ) ) {
144	$category = (array) explode( ',', $a['category'] );
145
146	$a['tax_query'] = array(
147	array(
148	'taxonomy' => 'course-category',
149	'field' => 'term_id',
150	'terms' => $category,
151	'operator' => 'IN',
152	),
153	);
154	}
155	$a['posts_per_page'] = (int) $a['count'];
156
157	wp_reset_query();
158	$the_query = new \WP_Query( $a );
159
160
161	// Load the renderer now
162	ob_start();
163	tutor_load_template('archive-course-init', array(
164	'course_filter' => isset( $atts['course_filter'] ) && $atts['course_filter'] == 'on',
165	'supported_filters' => tutor_utils()->get_option( 'supported_course_filters', array() ),
166	'loop_content_only' => false,
167	'column_per_row' => isset( $atts['column_per_row'] ) ? $atts['column_per_row'] : null,
168	'course_per_page' => $a['posts_per_page'],
169	'show_pagination' => isset( $atts['show_pagination'] ) && $atts['show_pagination']=='on',
170	'the_query' => $the_query
171	));
172	$output = ob_get_clean();
173
174	wp_reset_postdata();
175
176	return $output;
177	}
178
179	private function prepare_instructor_list( $current_page, $atts, $cat_ids = array(), $keyword = '' ) {
180
181	$default_pagination = tutor_utils()->get_option('pagination_per_page', 9);
182	$limit = (int) sanitize_text_field( tutor_utils()->array_get( 'count', $atts, $default_pagination ) );
183	$page = $current_page - 1;
184	$rating_filter = isset( $_POST['rating_filter'] ) ? $_POST['rating_filter'] : '';
185
186	/**
187	* Short by Relevant \| New \| Popular
188	*
189	* @since v2.0.0
190	*/
191	$short_by = '';
192	if ( isset( $_POST['short_by'] ) && $_POST['short_by'] === 'new' ) {
193	$short_by = 'new';
194	} elseif ( isset( $_POST['short_by'] ) && $_POST['short_by'] === 'popular' ) {
195	$short_by = 'popular';
196	} else {
197	$short_by = 'ASC';
198	}
199	$instructors = tutor_utils()->get_instructors( $limit * $page, $limit, $keyword, '', '', $short_by, 'approved', $cat_ids, $rating_filter );
200	$instructors_count = tutor_utils()->get_instructors( $limit * $page, $limit, $keyword, '', '', $short_by, 'approved', $cat_ids, $rating_filter, true );
201
202	$layout = sanitize_text_field( tutor_utils()->array_get( 'layout', $atts, '' ) );
203	$layout = in_array( $layout, $this->instructor_layout ) ? $layout : tutor_utils()->get_option( 'instructor_list_layout', $this->instructor_layout[0] );
204	$default_col = tutor_utils()->get_option( 'courses_col_per_row', 3 );
205
206	$payload = array(
207	'instructors' => is_array( $instructors ) ? $instructors : array(),
208	'instructors_count' => $instructors_count,
209	'column_count' => sanitize_text_field( tutor_utils()->array_get( 'column_per_row', $atts, $default_col ) ),
210	'layout' => $layout,
211	'limit' => $limit,
212	'current_page' => $current_page,
213	'filter' => $atts
214	);
215
216	return $payload;
217	}
218
219	/**
220	* @param $atts
221	*
222	* @return string
223	*
224	* Shortcode for getting instructors
225	*/
226	public function tutor_instructor_list( $atts ) {
227	global $wpdb;
228	! is_array( $atts ) ? $atts = array() : 0;
229
230	$current_page = (int) tutor_utils()->array_get( 'instructor-page', $_GET, 1 );
231	$current_page = $current_page >= 1 ? $current_page : 1;
232
233	$show_filter = isset( $atts['filter'] ) ? $atts['filter'] == 'on' : tutor_utils()->get_option( 'instructor_list_show_filter', false );
234	$atts['show_filter'] = $show_filter;
235
236	// Get instructor list to sow
237	$payload = $this->prepare_instructor_list( $current_page, $atts );
238	$payload['show_filter'] = $show_filter;
239
240	ob_start();
241	tutor_load_template( 'shortcode.tutor-instructor', $payload );
242	$content = ob_get_clean();
243
244	if ( $show_filter ) {
245	$limit = 8;
246	$course_taxonomy = 'course-category';
247	$course_cats = $wpdb->get_results($wpdb->prepare(
248	"SELECT * FROM {$wpdb->terms} AS term
249	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
250	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
251	ORDER BY term.term_id DESC
252	LIMIT %d",
253	$course_taxonomy,
254	$limit
255	));
256
257	$all_cats = $wpdb->get_var(
258	$wpdb->prepare(
259	"SELECT COUNT(*) as total FROM {$wpdb->terms} AS term
260	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
261	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
262	ORDER BY term.term_id DESC",
263	$course_taxonomy
264	)
265	);
266
267	$attributes = $payload;
268	unset( $attributes['instructors'] );
269
270	$payload = array(
271	'show_filter' => $show_filter,
272	'content' => $content,
273	'categories' => $course_cats,
274	'all_cats' => $all_cats,
275	'attributes' => array_merge( $atts, $attributes ),
276	);
277
278	ob_start();
279
280	tutor_load_template( 'shortcode.instructor-filter', $payload );
281
282	$content = ob_get_clean();
283	}
284
285	return $content;
286	}
287
288	/**
289	* Load more categories
290	* handle ajax request
291	*
292	* @package Instructor List
293	* @return string
294	* @since v2.0.0
295	*/
296	public function show_more() {
297	global $wpdb;
298	tutor_utils()->checking_nonce();
299	$term_id = isset( $_POST['term_id'] ) ? sanitize_text_field( $_POST['term_id'] ) : 0;
300	$limit = 8;
301	$course_taxonomy = 'course-category';
302
303	$remaining_categories = $wpdb->get_var(
304	$wpdb->prepare(
305	" SElECT COUNT(*) AS total FROM {$wpdb->terms} AS term
306	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
307	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
308	WHERE term.term_id < %d
309	ORDER BY term.term_id DESC
310	",
311	$course_taxonomy,
312	$term_id
313	)
314	);
315
316	$add_categories = $wpdb->get_results(
317	$wpdb->prepare(
318	" SElECT * FROM {$wpdb->terms} term
319	INNER JOIN {$wpdb->term_taxonomy} as taxonomy
320	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
321	WHERE term.term_id < %d
322	ORDER BY term.term_id DESC
323	LIMIT %d
324	",
325	$course_taxonomy,
326	$term_id,
327	$limit
328	)
329	);
330	$show_more = false;
331	if ( $remaining_categories > $limit ) {
332	$show_more = true;
333	}
334	$response = array(
335	'categories' => $add_categories,
336	'show_more' => $show_more,
337	'remaining' => $remaining_categories,
338	);
339	wp_send_json_success( $response );
340	exit;
341	}
342
343	/**
344	* Filter instructor
345	*/
346	public function load_filtered_instructor() {
347	tutor_utils()->checking_nonce();
348
349	$_post = tutor_sanitize_data($_POST);
350	$current_page = (int) sanitize_text_field( tutor_utils()->array_get( 'current_page', $_post, 1 ) );
351	$keyword = (string) sanitize_text_field( tutor_utils()->array_get( 'keyword', $_post, '' ) );
352
353	$category = (array) tutor_utils()->array_get( 'category', $_post, array() );
354	$category = array_filter(
355	$category,
356	function( $cat ) {
357	return is_numeric( $cat );
358	}
359	);
360
361	$data = $this->prepare_instructor_list( $current_page, $_post, $category, $keyword );
362
363	ob_start();
364	tutor_load_template( 'shortcode.tutor-instructor', $data );
365	wp_send_json_success( array('html' => ob_get_clean() ) );
366	exit;
367	}
368
369	/**
370	* Show layout selection dashboard in instructor setting
371	*/
372	public function tutor_instructor_layout() {
373	tutor_load_template( 'instructor-setting', array( 'templates' => $this->instructor_layout ) );
374	}
375	}
376