post-views-counter.php — Post Views Counter 1.0.9

post-views-counter / post-views-counter.php

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post-views-counter.php

354 lines

1	<?php
2	/*
3	Plugin Name: Post Views Counter
4	Description: Forget WP-PostViews. Display how many times a post, page or custom post type had been viewed in a simple, fast and reliable way.
5	Version: 1.0.9
6	Author: dFactory
7	Author URI: http://www.dfactory.eu/
8	Plugin URI: http://www.dfactory.eu/plugins/post-views-counter/
9	License: MIT License
10	License URI: http://opensource.org/licenses/MIT
11	Text Domain: post-views-counter
12	Domain Path: /languages
13
14	Post Views Counter
15	Copyright (C) 2014-2015, Digital Factory - info@digitalfactory.pl
16
17	Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
18
19	The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
20
21	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22	*/
23
24	// exit if accessed directly
25	if ( ! defined( 'ABSPATH' ) )
26	exit;
27
28	define( 'POST_VIEWS_COUNTER_URL', plugins_url( '', __FILE__ ) );
29	define( 'POST_VIEWS_COUNTER_PATH', plugin_dir_path( __FILE__ ) );
30	define( 'POST_VIEWS_COUNTER_REL_PATH', dirname( plugin_basename( __FILE__ ) ) . '/' );
31
32	include_once( POST_VIEWS_COUNTER_PATH . 'includes/update.php' );
33	include_once( POST_VIEWS_COUNTER_PATH . 'includes/settings.php' );
34	include_once( POST_VIEWS_COUNTER_PATH . 'includes/query.php' );
35	include_once( POST_VIEWS_COUNTER_PATH . 'includes/cron.php' );
36	include_once( POST_VIEWS_COUNTER_PATH . 'includes/counter.php' );
37	include_once( POST_VIEWS_COUNTER_PATH . 'includes/columns.php' );
38	include_once( POST_VIEWS_COUNTER_PATH . 'includes/frontend.php' );
39	include_once( POST_VIEWS_COUNTER_PATH . 'includes/widgets.php' );
40
41	/**
42	* Post Views Counter class
43	*
44	* @class Post_Views_Counter
45	* @version 1.0.9
46	*/
47	class Post_Views_Counter {
48
49	private static $_instance;
50	private $instances;
51	private $options;
52	private $defaults = array(
53	'general' => array(
54	'post_types_count' => array( 'post' ),
55	'counter_mode' => 'php',
56	'post_views_column' => true,
57	'time_between_counts' => array(
58	'number' => 24,
59	'type' => 'hours'
60	),
61	'reset_counts' => array(
62	'number' => 30,
63	'type' => 'days'
64	),
65	'flush_interval' => array(
66	'number' => 0,
67	'type' => 'minutes'
68	),
69	'exclude' => array(
70	'groups' => array(),
71	'roles' => array()
72	),
73	'exclude_ips' => array(),
74	'deactivation_delete' => false,
75	'cron_run' => true,
76	'cron_update' => true
77	),
78	'display' => array(
79	'label' => 'Post Views:',
80	'post_types_display' => array( 'post' ),
81	'restrict_display' => array(
82	'groups' => array(),
83	'roles' => array()
84	),
85	'position' => 'after',
86	'display_style' => array(
87	'icon' => true,
88	'text' => true
89	),
90	'link_to_post' => true,
91	'icon_class' => 'dashicons-visibility'
92	),
93	'version' => '1.0.9'
94	);
95
96	public static function instance() {
97	if ( self::$_instance === null )
98	self::$_instance = new self();
99
100	return self::$_instance;
101	}
102
103	private function __clone() {
104
105	}
106
107	private function __wakeup() {
108
109	}
110
111	private function __construct() {
112	register_activation_hook( __FILE__, array( &$this, 'activation' ) );
113	register_deactivation_hook( __FILE__, array( &$this, 'deactivation' ) );
114
115	// settings
116	$this->options = array(
117	'general' => array_merge( $this->defaults['general'], get_option( 'post_views_counter_settings_general', $this->defaults['general'] ) ),
118	'display' => array_merge( $this->defaults['display'], get_option( 'post_views_counter_settings_display', $this->defaults['display'] ) )
119	);
120
121	// actions
122	add_action( 'plugins_loaded', array( &$this, 'load_textdomain' ) );
123	add_action( 'admin_enqueue_scripts', array( &$this, 'admin_scripts_styles' ) );
124	add_action( 'wp_loaded', array( &$this, 'load_pluggable_functions' ), 10 );
125
126	// filters
127	add_filter( 'plugin_row_meta', array( &$this, 'plugin_extend_links' ), 10, 2 );
128	add_filter( 'plugin_action_links', array( &$this, 'plugin_settings_link' ), 10, 2 );
129	}
130
131	/**
132	* Execution of plugin activation function
133	*/
134	public function activation() {
135	global $wpdb, $charset_collate;
136
137	// required for dbdelta
138	require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
139
140	// create post views table
141	dbDelta( '
142	CREATE TABLE IF NOT EXISTS ' . $wpdb->prefix . 'post_views (
143	id bigint unsigned NOT NULL,
144	type tinyint(1) unsigned NOT NULL,
145	period varchar(8) NOT NULL,
146	count bigint unsigned NOT NULL,
147	PRIMARY KEY (type, period, id),
148	UNIQUE INDEX id_period (id, period) USING BTREE,
149	INDEX type_period_count (type, period, count) USING BTREE
150	) ' . $charset_collate . ';'
151	);
152
153	// add default options
154	add_option( 'post_views_counter_settings_general', $this->defaults['general'], '', 'no' );
155	add_option( 'post_views_counter_settings_display', $this->defaults['display'], '', 'no' );
156	add_option( 'post_views_counter_version', $this->defaults['version'], '', 'no' );
157
158	// schedule cache flush
159	$this->schedule_cache_flush();
160	}
161
162	/**
163	* Execution of plugin deactivation function
164	*/
165	public function deactivation() {
166	// delete default options
167	if ( $this->options['general']['deactivation_delete'] ) {
168	delete_option( 'post_views_counter_settings_general' );
169	delete_option( 'post_views_counter_settings_display' );
170	}
171
172	// remove schedule
173	wp_clear_scheduled_hook( 'pvc_reset_counts' );
174	remove_action( 'pvc_reset_counts', array( Post_Views_Counter()->get_instance( 'cron' ), 'reset_counts' ) );
175
176	$this->remove_cache_flush();
177	}
178
179	/**
180	* Schedule cache flushing if it's not already scheduled
181	*/
182	public function schedule_cache_flush( $forced = true ) {
183	if ( $forced \|\| ! wp_next_scheduled( 'pvc_flush_cached_counts' ) ) {
184	wp_schedule_event( time(), 'post_views_counter_flush_interval', 'pvc_flush_cached_counts' );
185	}
186	}
187
188	/**
189	* Remove scheduled cache flush and the corresponding action
190	*/
191	public function remove_cache_flush() {
192	wp_clear_scheduled_hook( 'pvc_flush_cached_counts' );
193	remove_action( 'pvc_flush_cached_counts', array( Post_Views_Counter()->get_instance( 'cron' ), 'flush_cached_counts' ) );
194	}
195
196	/**
197	* Load text domain
198	*/
199	public function load_textdomain() {
200	load_plugin_textdomain( 'post-views-counter', false, POST_VIEWS_COUNTER_REL_PATH . 'languages/' );
201	}
202
203	/**
204	* Load pluggable template functions
205	*/
206	public function load_pluggable_functions() {
207	include_once(POST_VIEWS_COUNTER_PATH . 'includes/functions.php');
208	}
209
210	/**
211	* Set instance of class
212	*/
213	public function add_instance( $name, $instance ) {
214	$this->instances[$name] = $instance;
215	}
216
217	/**
218	* Get instance of a class
219	*/
220	public function get_instance( $name ) {
221	if ( in_array( $name, array( 'counter', 'settings' ), true ) )
222	return $this->instances[$name];
223	}
224
225	/**
226	* Get allowed attribute
227	*/
228	public function get_attribute( $attribute ) {
229	if ( in_array( $attribute, array( 'options', 'defaults' ), true ) ) {
230	switch ( func_num_args() ) {
231	case 1:
232	return $this->{$attribute};
233
234	case 2:
235	return $this->{$attribute}[func_get_arg( 1 )];
236
237	case 3:
238	return $this->{$attribute}[func_get_arg( 1 )][func_get_arg( 2 )];
239
240	case 4:
241	return $this->{$attribute}[func_get_arg( 1 )][func_get_arg( 2 )][func_get_arg( 3 )];
242	}
243	} else
244	return false;
245	}
246
247	/**
248	* Enqueue admin scripts and styles
249	*/
250	public function admin_scripts_styles( $page ) {
251
252	wp_register_style(
253	'pvc-admin', POST_VIEWS_COUNTER_URL . '/css/admin.css'
254	);
255
256	wp_register_style(
257	'pvc-chosen', POST_VIEWS_COUNTER_URL . '/assets/chosen/chosen.min.css'
258	);
259
260	wp_register_script(
261	'pvc-admin-chosen', POST_VIEWS_COUNTER_URL . '/assets/chosen/chosen.jquery.min.js', array( 'jquery' ), $this->defaults['version']
262	);
263
264	wp_register_script(
265	'pvc-admin-settings', POST_VIEWS_COUNTER_URL . '/js/admin-settings.js', array( 'jquery', 'pvc-admin-chosen' ), $this->defaults['version']
266	);
267
268	wp_register_script(
269	'pvc-admin-post', POST_VIEWS_COUNTER_URL . '/js/admin-post.js', array( 'jquery' ), $this->defaults['version']
270	);
271
272	// load on PVC settings page
273	if ( $page === 'settings_page_post-views-counter' ) {
274
275	wp_enqueue_script( 'pvc-admin-chosen' );
276	wp_enqueue_script( 'pvc-admin-settings' );
277
278	wp_localize_script(
279	'pvc-admin-settings', 'pvcArgsSettings', array(
280	'resetToDefaults' => __( 'Are you sure you want to reset these settings to defaults?', 'post-views-counter' )
281	)
282	);
283
284	wp_enqueue_style( 'pvc-chosen' );
285	wp_enqueue_style( 'pvc-admin' );
286
287	// load on single post page
288	} elseif ( $page = 'post.php' ) {
289
290	$post_types = Post_Views_Counter()->get_attribute( 'options', 'general', 'post_types_count' );
291
292	if ( ! in_array( get_post_type(), (array) $post_types ) )
293	return;
294
295	wp_enqueue_style( 'pvc-admin' );
296	wp_enqueue_script( 'pvc-admin-post' );
297	}
298	}
299
300	/**
301	* Add links to plugin support forum.
302	*/
303	public function plugin_extend_links( $links, $file ) {
304
305	if ( ! current_user_can( 'install_plugins' ) )
306	return $links;
307
308	$plugin = plugin_basename( __FILE__ );
309
310	if ( $file == $plugin ) {
311	return array_merge(
312	$links, array( sprintf( '<a href="http://www.dfactory.eu/support/forum/post-views-counter/" target="_blank">%s</a>', __( 'Support', 'post-views-counter' ) ) )
313	);
314	}
315
316	return $links;
317	}
318
319	/**
320	* Add link to settings page
321	*/
322	public function plugin_settings_link( $links, $file ) {
323	if ( ! is_admin() \|\| ! current_user_can( 'manage_options' ) )
324	return $links;
325
326	static $plugin;
327
328	$plugin = plugin_basename( __FILE__ );
329
330	if ( $file == $plugin ) {
331	$settings_link = sprintf( '<a href="%s">%s</a>', admin_url( 'options-general.php' ) . '?page=post-views-counter', __( 'Settings', 'post-views-counter' ) );
332
333	array_unshift( $links, $settings_link );
334	}
335
336	return $links;
337	}
338
339	}
340
341	/**
342	* Initialise Post Views Counter
343	*/
344	function Post_Views_Counter() {
345	static $instance;
346
347	// first call to instance() initializes the plugin
348	if ( $instance === null \|\| ! ($instance instanceof Post_Views_Counter) )
349	$instance = Post_Views_Counter::instance();
350
351	return $instance;
352	}
353
354	Post_Views_Counter();