Shortcode.php — Tutor LMS – eLearning and online course solution 2.0.7

tutor / classes / Shortcode.php

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Shortcode.php

406 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
148	$category_ids = array_filter($category, function($id){
149	return is_numeric($id);
150	});
151
152	$category_names = array_filter($category, function($id){
153	return !is_numeric($id);
154	});
155
156	if(!empty($category_ids)) {
157	$a['tax_query'] = array(
158	array(
159	'taxonomy' => 'course-category',
160	'field' => 'term_id',
161	'terms' => $category_ids,
162	'operator' => 'IN',
163	),
164	);
165	}
166
167	if(!empty($category_names)) {
168	$a['tax_query'] = array(
169	array(
170	'taxonomy' => 'course-category',
171	'field' => 'name',
172	'terms' => $category_names,
173	'operator' => 'IN',
174	),
175	);
176	}
177
178	}
179	$a['posts_per_page'] = (int) $a['count'];
180
181	wp_reset_query();
182	$the_query = new \WP_Query( $a );
183
184
185	// Load the renderer now
186	ob_start();
187
188	if ( $the_query->have_posts() ) {
189	tutor_load_template('archive-course-init', array(
190	'course_filter' => isset( $atts['course_filter'] ) && $atts['course_filter'] == 'on',
191	'supported_filters' => tutor_utils()->get_option( 'supported_course_filters', array() ),
192	'loop_content_only' => false,
193	'column_per_row' => isset( $atts['column_per_row'] ) ? $atts['column_per_row'] : null,
194	'course_per_page' => $a['posts_per_page'],
195	'show_pagination' => isset( $atts['show_pagination'] ) && $atts['show_pagination']=='on',
196	'the_query' => $the_query
197	));
198	} else {
199	tutor_utils()->tutor_empty_state( tutor_utils()->not_found_text() );
200	}
201
202	$output = ob_get_clean();
203
204	wp_reset_postdata();
205
206	return $output;
207	}
208
209	private function prepare_instructor_list( $current_page, $atts, $cat_ids = array(), $keyword = '' ) {
210
211	$default_pagination = tutor_utils()->get_option('pagination_per_page', 9);
212	$limit = (int) sanitize_text_field( tutor_utils()->array_get( 'count', $atts, $default_pagination ) );
213	$page = $current_page - 1;
214	$rating_filter = isset( $_POST['rating_filter'] ) ? $_POST['rating_filter'] : '';
215
216	/**
217	* Sort by Relevant \| New \| Popular
218	*
219	* @since v2.0.0
220	*/
221	$short_by = '';
222	if ( isset( $_POST['short_by'] ) && $_POST['short_by'] === 'new' ) {
223	$short_by = 'new';
224	} elseif ( isset( $_POST['short_by'] ) && $_POST['short_by'] === 'popular' ) {
225	$short_by = 'popular';
226	} else {
227	$short_by = 'ASC';
228	}
229	$instructors = tutor_utils()->get_instructors( $limit * $page, $limit, $keyword, '', '', $short_by, 'approved', $cat_ids, $rating_filter );
230	$instructors_count = tutor_utils()->get_instructors( $limit * $page, $limit, $keyword, '', '', $short_by, 'approved', $cat_ids, $rating_filter, true );
231
232	$layout = sanitize_text_field( tutor_utils()->array_get( 'layout', $atts, '' ) );
233	$layout = in_array( $layout, $this->instructor_layout ) ? $layout : tutor_utils()->get_option( 'instructor_list_layout', $this->instructor_layout[0] );
234	$default_col = tutor_utils()->get_option( 'courses_col_per_row', 3 );
235
236	$payload = array(
237	'instructors' => is_array( $instructors ) ? $instructors : array(),
238	'instructors_count' => $instructors_count,
239	'column_count' => sanitize_text_field( tutor_utils()->array_get( 'column_per_row', $atts, $default_col ) ),
240	'layout' => $layout,
241	'limit' => $limit,
242	'current_page' => $current_page,
243	'filter' => $atts
244	);
245
246	return $payload;
247	}
248
249	/**
250	* @param $atts
251	*
252	* @return string
253	*
254	* Shortcode for getting instructors
255	*/
256	public function tutor_instructor_list( $atts ) {
257	global $wpdb;
258	! is_array( $atts ) ? $atts = array() : 0;
259
260	$current_page = (int) tutor_utils()->array_get( 'instructor-page', $_GET, 1 );
261	$current_page = $current_page >= 1 ? $current_page : 1;
262
263	$show_filter = isset( $atts['filter'] ) ? $atts['filter'] == 'on' : tutor_utils()->get_option( 'instructor_list_show_filter', false );
264	$atts['show_filter'] = $show_filter;
265
266	// Get instructor list to sow
267	$payload = $this->prepare_instructor_list( $current_page, $atts );
268	$payload['show_filter'] = $show_filter;
269
270	ob_start();
271	tutor_load_template( 'shortcode.tutor-instructor', $payload );
272	$content = ob_get_clean();
273
274	if ( $show_filter ) {
275	$limit = 8;
276	$course_taxonomy = 'course-category';
277	$course_cats = $wpdb->get_results($wpdb->prepare(
278	"SELECT * FROM {$wpdb->terms} AS term
279	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
280	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
281	ORDER BY term.term_id DESC
282	LIMIT %d",
283	$course_taxonomy,
284	$limit
285	));
286
287	$all_cats = $wpdb->get_var(
288	$wpdb->prepare(
289	"SELECT COUNT(*) as total FROM {$wpdb->terms} AS term
290	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
291	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
292	ORDER BY term.term_id DESC",
293	$course_taxonomy
294	)
295	);
296
297	$attributes = $payload;
298	unset( $attributes['instructors'] );
299
300	$payload = array(
301	'show_filter' => $show_filter,
302	'content' => $content,
303	'categories' => $course_cats,
304	'all_cats' => $all_cats,
305	'attributes' => array_merge( $atts, $attributes ),
306	);
307
308	ob_start();
309
310	tutor_load_template( 'shortcode.instructor-filter', $payload );
311
312	$content = ob_get_clean();
313	}
314
315	return $content;
316	}
317
318	/**
319	* Load more categories
320	* handle ajax request
321	*
322	* @package Instructor List
323	* @return string
324	* @since v2.0.0
325	*/
326	public function show_more() {
327	global $wpdb;
328	tutor_utils()->checking_nonce();
329	$term_id = isset( $_POST['term_id'] ) ? sanitize_text_field( $_POST['term_id'] ) : 0;
330	$limit = 8;
331	$course_taxonomy = 'course-category';
332
333	$remaining_categories = $wpdb->get_var(
334	$wpdb->prepare(
335	" SElECT COUNT(*) AS total FROM {$wpdb->terms} AS term
336	INNER JOIN {$wpdb->term_taxonomy} AS taxonomy
337	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
338	WHERE term.term_id < %d
339	ORDER BY term.term_id DESC
340	",
341	$course_taxonomy,
342	$term_id
343	)
344	);
345
346	$add_categories = $wpdb->get_results(
347	$wpdb->prepare(
348	" SElECT * FROM {$wpdb->terms} term
349	INNER JOIN {$wpdb->term_taxonomy} as taxonomy
350	ON taxonomy.term_id = term.term_id AND taxonomy.taxonomy = %s
351	WHERE term.term_id < %d
352	ORDER BY term.term_id DESC
353	LIMIT %d
354	",
355	$course_taxonomy,
356	$term_id,
357	$limit
358	)
359	);
360	$show_more = false;
361	if ( $remaining_categories > $limit ) {
362	$show_more = true;
363	}
364	$response = array(
365	'categories' => $add_categories,
366	'show_more' => $show_more,
367	'remaining' => $remaining_categories,
368	);
369	wp_send_json_success( $response );
370	exit;
371	}
372
373	/**
374	* Filter instructor
375	*/
376	public function load_filtered_instructor() {
377	tutor_utils()->checking_nonce();
378
379	$_post = tutor_sanitize_data($_POST);
380	$current_page = (int) sanitize_text_field( tutor_utils()->array_get( 'current_page', $_post, 1 ) );
381	$keyword = (string) sanitize_text_field( tutor_utils()->array_get( 'keyword', $_post, '' ) );
382
383	$category = (array) tutor_utils()->array_get( 'category', $_post, array() );
384	$category = array_filter(
385	$category,
386	function( $cat ) {
387	return is_numeric( $cat );
388	}
389	);
390
391	$data = $this->prepare_instructor_list( $current_page, $_post, $category, $keyword );
392
393	ob_start();
394	tutor_load_template( 'shortcode.tutor-instructor', $data );
395	wp_send_json_success( array('html' => ob_get_clean() ) );
396	exit;
397	}
398
399	/**
400	* Show layout selection dashboard in instructor setting
401	*/
402	public function tutor_instructor_layout() {
403	tutor_load_template( 'instructor-setting', array( 'templates' => $this->instructor_layout ) );
404	}
405	}
406