Shortcode.php — Tutor LMS – eLearning and online course solution 2.1.3

tutor / classes / Shortcode.php

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Shortcode.php

412 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	/**
85	* If user not logged in show login form instead of
86	* popup sign-in button
87	*
88	* @since 2.1.3
89	*/
90	$login_url = tutor_utils()->get_option('enable_tutor_native_login', null, true, true) ? '' : wp_login_url(tutor()->current_url);
91	echo sprintf( __('Please %sSign-In%s to view this page', 'tutor'), '<a data-login_url="'.$login_url.'" href="#" class="tutor-open-login-modal">', '</a>');
92	}
93	return apply_filters( 'tutor_dashboard/index', ob_get_clean() );
94	}
95
96	/**
97	* @return mixed
98	*
99	* Instructor Registration Shortcode
100	*
101	* @since v.1.0.0
102	*/
103	public function instructor_registration_form() {
104	ob_start();
105	if ( is_user_logged_in() ) {
106	tutor_load_template( 'dashboard.instructor.logged-in' );
107	} else {
108	tutor_load_template( 'dashboard.instructor.registration' );
109	}
110	return apply_filters( 'tutor_dashboard/student/index', ob_get_clean() );
111	}
112
113	/**
114	* @param $atts
115	*
116	* @return string
117	*
118	* Shortcode for getting course
119	*/
120	public function tutor_course( $atts ) {
121	$course_post_type = tutor()->course_post_type;
122
123	$a = shortcode_atts(
124	array(
125	'post_type' => $course_post_type,
126	'post_status' => 'publish',
127
128	'id' => '',
129	'exclude_ids' => '',
130	'category' => '',
131
132	'orderby' => 'ID',
133	'order' => 'DESC',
134	'count' => 6,
135	'paged' => get_query_var( 'paged' ) ? get_query_var( 'paged' ) : 1,
136	),
137	$atts
138	);
139
140	if ( ! empty( $a['id'] ) ) {
141	$ids = (array) explode( ',', $a['id'] );
142	$a['post__in'] = $ids;
143	}
144
145	if ( ! empty( $a['exclude_ids'] ) ) {
146	$exclude_ids = (array) explode( ',', $a['exclude_ids'] );
147	$a['post__not_in'] = $exclude_ids;
148	}
149	if ( ! empty( $a['category'] ) ) {
150	$category = (array) explode( ',', $a['category'] );
151
152	$a['tax_query'] = array();
153
154	$category_ids = array_filter($category, function($id){
155	return is_numeric($id);
156	});
157
158	$category_names = array_filter($category, function($id){
159	return !is_numeric($id);
160	});
161
162	if(!empty($category_ids)) {
163	$a['tax_query'] = array(
164	array(
165	'taxonomy' => 'course-category',
166	'field' => 'term_id',
167	'terms' => $category_ids,
168	'operator' => 'IN',
169	),
170	);
171	}
172
173	if(!empty($category_names)) {
174	$a['tax_query'] = array(
175	array(
176	'taxonomy' => 'course-category',
177	'field' => 'name',
178	'terms' => $category_names,
179	'operator' => 'IN',
180	),
181	);
182	}
183
184	}
185	$a['posts_per_page'] = (int) $a['count'];
186
187	wp_reset_query();
188	$the_query = new \WP_Query( $a );
189
190
191	// Load the renderer now
192	ob_start();
193
194	if ( $the_query->have_posts() ) {
195	tutor_load_template('archive-course-init', array(
196	'course_filter' => isset( $atts['course_filter'] ) && $atts['course_filter'] == 'on',
197	'supported_filters' => tutor_utils()->get_option( 'supported_course_filters', array() ),
198	'loop_content_only' => false,
199	'column_per_row' => isset( $atts['column_per_row'] ) ? $atts['column_per_row'] : null,
200	'course_per_page' => $a['posts_per_page'],
201	'show_pagination' => isset( $atts['show_pagination'] ) && $atts['show_pagination']=='on',
202	'the_query' => $the_query
203	));
204	} else {
205	tutor_utils()->tutor_empty_state( tutor_utils()->not_found_text() );
206	}
207
208	$output = ob_get_clean();
209
210	wp_reset_postdata();
211
212	return $output;
213	}
214
215	private function prepare_instructor_list( $current_page, $atts, $cat_ids = array(), $keyword = '' ) {
216
217	$default_pagination = tutor_utils()->get_option('pagination_per_page', 9);
218	$limit = (int) sanitize_text_field( tutor_utils()->array_get( 'count', $atts, $default_pagination ) );
219	$page = $current_page - 1;
220	$rating_filter = isset( $_POST['rating_filter'] ) ? $_POST['rating_filter'] : '';
221
222	/**
223	* Sort by Relevant \| New \| Popular
224	*
225	* @since v2.0.0
226	*/
227	$short_by = '';
228	if ( isset( $_POST['short_by'] ) && $_POST['short_by'] === 'new' ) {
229	$short_by = 'new';
230	} elseif ( isset( $_POST['short_by'] ) && $_POST['short_by'] === 'popular' ) {
231	$short_by = 'popular';
232	} else {
233	$short_by = 'ASC';
234	}
235	$instructors = tutor_utils()->get_instructors( $limit * $page, $limit, $keyword, '', '', $short_by, 'approved', $cat_ids, $rating_filter );
236	$instructors_count = tutor_utils()->get_instructors( $limit * $page, $limit, $keyword, '', '', $short_by, 'approved', $cat_ids, $rating_filter, true );
237
238	$layout = sanitize_text_field( tutor_utils()->array_get( 'layout', $atts, '' ) );
239	$layout = in_array( $layout, $this->instructor_layout ) ? $layout : tutor_utils()->get_option( 'instructor_list_layout', $this->instructor_layout[0] );
240	$default_col = tutor_utils()->get_option( 'courses_col_per_row', 3 );
241
242	$payload = array(
243	'instructors' => is_array( $instructors ) ? $instructors : array(),
244	'instructors_count' => $instructors_count,
245	'column_count' => sanitize_text_field( tutor_utils()->array_get( 'column_per_row', $atts, $default_col ) ),
246	'layout' => $layout,
247	'limit' => $limit,
248	'current_page' => $current_page,
249	'filter' => $atts
250	);
251
252	return $payload;
253	}
254
255	/**
256	* @param $atts
257	*
258	* @return string
259	*
260	* Shortcode for getting instructors
261	*/
262	public function tutor_instructor_list( $atts ) {
263	global $wpdb;
264	! is_array( $atts ) ? $atts = array() : 0;
265
266	$current_page = (int) tutor_utils()->array_get( 'instructor-page', $_GET, 1 );
267	$current_page = $current_page >= 1 ? $current_page : 1;
268
269	$show_filter = isset( $atts['filter'] ) ? $atts['filter'] == 'on' : tutor_utils()->get_option( 'instructor_list_show_filter', false );
270	$atts['show_filter'] = $show_filter;
271
272	// Get instructor list to sow
273	$payload = $this->prepare_instructor_list( $current_page, $atts );
274	$payload['show_filter'] = $show_filter;
275
276	ob_start();
277	tutor_load_template( 'shortcode.tutor-instructor', $payload );
278	$content = ob_get_clean();
279
280	if ( $show_filter ) {
281	$limit = 8;
282	$course_taxonomy = 'course-category';
283	$course_cats = $wpdb->get_results($wpdb->prepare(
284	"SELECT * FROM {$wpdb->terms} AS term
285	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
286	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
287	ORDER BY term.term_id DESC
288	LIMIT %d",
289	$course_taxonomy,
290	$limit
291	));
292
293	$all_cats = $wpdb->get_var(
294	$wpdb->prepare(
295	"SELECT COUNT(*) as total FROM {$wpdb->terms} AS term
296	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
297	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
298	ORDER BY term.term_id DESC",
299	$course_taxonomy
300	)
301	);
302
303	$attributes = $payload;
304	unset( $attributes['instructors'] );
305
306	$payload = array(
307	'show_filter' => $show_filter,
308	'content' => $content,
309	'categories' => $course_cats,
310	'all_cats' => $all_cats,
311	'attributes' => array_merge( $atts, $attributes ),
312	);
313
314	ob_start();
315
316	tutor_load_template( 'shortcode.instructor-filter', $payload );
317
318	$content = ob_get_clean();
319	}
320
321	return $content;
322	}
323
324	/**
325	* Load more categories
326	* handle ajax request
327	*
328	* @package Instructor List
329	* @return string
330	* @since v2.0.0
331	*/
332	public function show_more() {
333	global $wpdb;
334	tutor_utils()->checking_nonce();
335	$term_id = isset( $_POST['term_id'] ) ? sanitize_text_field( $_POST['term_id'] ) : 0;
336	$limit = 8;
337	$course_taxonomy = 'course-category';
338
339	$remaining_categories = $wpdb->get_var(
340	$wpdb->prepare(
341	" SElECT COUNT(*) AS total FROM {$wpdb->terms} AS term
342	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
343	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
344	WHERE term.term_id < %d
345	ORDER BY term.term_id DESC
346	",
347	$course_taxonomy,
348	$term_id
349	)
350	);
351
352	$add_categories = $wpdb->get_results(
353	$wpdb->prepare(
354	" SElECT * FROM {$wpdb->terms} term
355	INNER JOIN {$wpdb->term_taxonomy} as taxonomy
356	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
357	WHERE term.term_id < %d
358	ORDER BY term.term_id DESC
359	LIMIT %d
360	",
361	$course_taxonomy,
362	$term_id,
363	$limit
364	)
365	);
366	$show_more = false;
367	if ( $remaining_categories > $limit ) {
368	$show_more = true;
369	}
370	$response = array(
371	'categories' => $add_categories,
372	'show_more' => $show_more,
373	'remaining' => $remaining_categories,
374	);
375	wp_send_json_success( $response );
376	exit;
377	}
378
379	/**
380	* Filter instructor
381	*/
382	public function load_filtered_instructor() {
383	tutor_utils()->checking_nonce();
384
385	$_post = tutor_sanitize_data($_POST);
386	$current_page = (int) sanitize_text_field( tutor_utils()->array_get( 'current_page', $_post, 1 ) );
387	$keyword = (string) sanitize_text_field( tutor_utils()->array_get( 'keyword', $_post, '' ) );
388
389	$category = (array) tutor_utils()->array_get( 'category', $_post, array() );
390	$category = array_filter(
391	$category,
392	function( $cat ) {
393	return is_numeric( $cat );
394	}
395	);
396
397	$data = $this->prepare_instructor_list( $current_page, $_post, $category, $keyword );
398
399	ob_start();
400	tutor_load_template( 'shortcode.tutor-instructor', $data );
401	wp_send_json_success( array('html' => ob_get_clean() ) );
402	exit;
403	}
404
405	/**
406	* Show layout selection dashboard in instructor setting
407	*/
408	public function tutor_instructor_layout() {
409	tutor_load_template( 'instructor-setting', array( 'templates' => $this->instructor_layout ) );
410	}
411	}
412