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Visualizer – Tables & Charts Manager with Built-in AI Generator / 3.5.0
Visualizer – Tables & Charts Manager with Built-in AI Generator v3.5.0
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visualizer / classes / Visualizer / Module.php

Module.php in Visualizer – Tables & Charts Manager with Built-in AI Generator 3.5.0, at classes/Visualizer/Module.php

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1 <?php
2
3 // +----------------------------------------------------------------------+
4 // | Copyright 2013 Madpixels (email : visualizer@madpixels.net) |
5 // +----------------------------------------------------------------------+
6 // | This program is free software; you can redistribute it and/or modify |
7 // | it under the terms of the GNU General Public License, version 2, as |
8 // | published by the Free Software Foundation. |
9 // | |
10 // | This program is distributed in the hope that it will be useful, |
11 // | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 // | GNU General Public License for more details. |
14 // | |
15 // | You should have received a copy of the GNU General Public License |
16 // | along with this program; if not, write to the Free Software |
17 // | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
18 // | MA 02110-1301 USA |
19 // +----------------------------------------------------------------------+
20 // | Author: Eugene Manuilov <eugene@manuilov.org> |
21 // +----------------------------------------------------------------------+
22 /**
23 * Base class for all modules. Implements routine methods required by all modules.
24 *
25 * @category Visualizer
26 * @package Module
27 *
28 * @since 1.0.0
29 */
30 class Visualizer_Module {
31
32 /**
33 * The instance of wpdb class.
34 *
35 * @since 1.0.0
36 *
37 * @access protected
38 * @var wpdb
39 */
40 protected $_wpdb = null;
41
42 /**
43 * The plugin instance.
44 *
45 * @since 1.0.0
46 *
47 * @access protected
48 * @var Visualizer_Plugin
49 */
50 protected $_plugin = null;
51
52 /**
53 * Constructor.
54 *
55 * @since 1.0.0
56 * @global wpdb $wpdb Current database connection.
57 *
58 * @access public
59 * @param Visualizer_Plugin $plugin The instance of the plugin.
60 */
61 public function __construct( Visualizer_Plugin $plugin ) {
62 global $wpdb;
63
64 $this->_wpdb = $wpdb;
65 $this->_plugin = $plugin;
66
67 $this->_addFilter( Visualizer_Plugin::FILTER_UNDO_REVISIONS, 'undoRevisions', 10, 2 );
68 $this->_addFilter( Visualizer_Plugin::FILTER_HANDLE_REVISIONS, 'handleExistingRevisions', 10, 2 );
69 $this->_addFilter( Visualizer_Plugin::FILTER_GET_CHART_DATA_AS, 'getDataAs', 10, 3 );
70 register_shutdown_function( array($this, 'onShutdown') );
71
72 }
73
74 /**
75 * Register a shutdown hook to catch fatal errors.
76 *
77 * @since ?
78 *
79 * @access public
80 */
81 public function onShutdown() {
82 $error = error_get_last();
83 if ( $error && $error['type'] === E_ERROR && false !== strpos( $error['file'], 'Visualizer/' ) ) {
84 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Critical error %s', print_r( $error, true ) ), 'error', __FILE__, __LINE__ );
85 }
86 }
87
88 /**
89 * Registers an action hook.
90 *
91 * @since 1.0.0
92 * @uses add_action() To register action hook.
93 *
94 * @access protected
95 * @param string $tag The name of the action to which the $method is hooked.
96 * @param string $method The name of the method to be called.
97 * @param bool $methodClass The root of the method.
98 * @param int $priority optional. Used to specify the order in which the functions associated with a particular action are executed (default: 10). Lower numbers correspond with earlier execution, and functions with the same priority are executed in the order in which they were added to the action.
99 * @param int $accepted_args optional. The number of arguments the function accept (default 1).
100 * @return Visualizer_Module
101 */
102 protected function _addAction( $tag, $method, $methodClass = null, $priority = 10, $accepted_args = 1 ) {
103 add_action( $tag, array( $methodClass ? $methodClass : $this, $method ), $priority, $accepted_args );
104 return $this;
105 }
106
107 /**
108 * Registers AJAX action hook.
109 *
110 * @since 1.0.0
111 *
112 * @access public
113 * @param string $tag The name of the AJAX action to which the $method is hooked.
114 * @param string $method Optional. The name of the method to be called. If the name of the method is not provided, tag name will be used as method name.
115 * @param bool $methodClass The root of the method.
116 * @param boolean $private Optional. Determines if we should register hook for logged in users.
117 * @param boolean $public Optional. Determines if we should register hook for not logged in users.
118 * @return Visualizer_Module
119 */
120 protected function _addAjaxAction( $tag, $method = '', $methodClass = null, $private = true, $public = false ) {
121 if ( $private ) {
122 $this->_addAction( 'wp_ajax_' . $tag, $method, $methodClass );
123 }
124
125 if ( $public ) {
126 $this->_addAction( 'wp_ajax_nopriv_' . $tag, $method, $methodClass );
127 }
128
129 return $this;
130 }
131
132 /**
133 * Registers a filter hook.
134 *
135 * @since 1.0.0
136 * @uses add_filter() To register filter hook.
137 *
138 * @access protected
139 * @param string $tag The name of the filter to hook the $method to.
140 * @param type $method The name of the method to be called when the filter is applied.
141 * @param int $priority optional. Used to specify the order in which the functions associated with a particular action are executed (default: 10). Lower numbers correspond with earlier execution, and functions with the same priority are executed in the order in which they were added to the action.
142 * @param int $accepted_args optional. The number of arguments the function accept (default 1).
143 * @return Visualizer_Module
144 */
145 protected function _addFilter( $tag, $method, $priority = 10, $accepted_args = 1 ) {
146 add_filter( $tag, array( $this, $method ), $priority, $accepted_args );
147 return $this;
148 }
149
150 /**
151 * Registers a hook for shortcode tag.
152 *
153 * @since 1.0.0
154 * @uses add_shortcode() To register shortcode hook.
155 *
156 * @access protected
157 * @param string $tag Shortcode tag to be searched in post content.
158 * @param string $method Hook to run when shortcode is found.
159 * @return Visualizer_Module
160 */
161 protected function _addShortcode( $tag, $method ) {
162 add_shortcode( $tag, array( $this, $method ) );
163 return $this;
164 }
165
166 /**
167 * A wrapper around the actual function _getDataAs. This function is invoked as a filter.
168 *
169 * @since 3.2.0
170 */
171 public function getDataAs( $final, $chart_id, $type ) {
172 return $this->_getDataAs( $chart_id, $type );
173 }
174
175 /**
176 * Extracts the data for a chart and prepares it for the given type.
177 *
178 * @access public
179 * @param int $chart_id The chart id.
180 * @param string $type The exported type.
181 */
182 public function _getDataAs( $chart_id, $type ) {
183 $final = null;
184 $success = false;
185 if ( $chart_id ) {
186 $chart = get_post( $chart_id );
187 $success = $chart && $chart->post_type === Visualizer_Plugin::CPT_VISUALIZER;
188 }
189 if ( $success ) {
190 $settings = get_post_meta( $chart_id, Visualizer_Plugin::CF_SETTINGS, true );
191 $rows = array();
192 $series = get_post_meta( $chart_id, Visualizer_Plugin::CF_SERIES, true );
193 $data = self::get_chart_data( $chart, $type, false );
194 if ( ! empty( $series ) ) {
195 $row = array();
196 foreach ( $series as $array ) {
197 $row[] = $array['label'];
198 }
199 $rows[] = $row;
200 $row = array();
201 foreach ( $series as $array ) {
202 $row[] = $array['type'];
203 }
204 $rows[] = $row;
205 }
206 if ( ! empty( $data ) ) {
207 foreach ( $data as $array ) {
208 // ignore strings
209 if ( ! is_array( $array ) ) {
210 continue;
211 }
212 // if this is an array of arrays...
213 if ( is_array( $array[0] ) ) {
214 foreach ( $array as $arr ) {
215 $rows[] = $arr;
216 }
217 } else {
218 // just an array
219 $rows[] = $array;
220 }
221 }
222 }
223
224 $title = 'visualizer#' . $chart_id;
225 if ( ! empty( $settings['title'] ) ) {
226 $title = $settings['title'];
227 }
228 // for ChartJS, title is an array.
229 if ( is_array( $title ) && isset( $title['text'] ) ) {
230 $title = $title['text'];
231 }
232 if ( empty( $title ) ) {
233 $title = 'visualizer#' . $chart_id;
234 }
235
236 $filename = $title;
237
238 switch ( $type ) {
239 case 'csv':
240 $final = $this->_getCSV( $rows, $filename, false );
241 break;
242 case 'csv-display':
243 $final = $this->_getCSV( $rows, $filename, true );
244 break;
245 case 'xls':
246 $final = $this->_getExcel( $rows, $filename );
247 break;
248 case 'print':
249 $final = $this->_getHTML( $rows );
250 break;
251 }
252 }
253 return $final;
254 }
255
256 /**
257 * Prepares a CSV.
258 *
259 * @access private
260 * @param array $rows The array of data.
261 * @param string $filename The name of the file to use.
262 * @param bool $enclose Enclose strings that have commas in them in double quotes.
263 */
264 private function _getCSV( $rows, $filename, $enclose ) {
265 $filename .= '.csv';
266
267 $bom = chr( 0xEF ) . chr( 0xBB ) . chr( 0xBF );
268 $fp = tmpfile();
269 if ( ! apply_filters( 'vizualizer_export_include_series_type', true ) ) {
270 unset( $rows[1] );
271 $rows = array_values( $rows );
272 }
273 // support for MS Excel
274 fprintf( $fp, $bom );
275 foreach ( $rows as $row ) {
276 fputcsv( $fp, $row );
277 }
278 rewind( $fp );
279 $csv = '';
280 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
281 while ( ( $array = fgetcsv( $fp ) ) !== false ) {
282 if ( strlen( $csv ) > 0 ) {
283 $csv .= PHP_EOL;
284 }
285 // if enclosure is required, check every item of this line
286 // if a comma exists in the item, add enclosure.
287 if ( $enclose ) {
288 $temp_array = array();
289 foreach ( $array as $item ) {
290 if ( strpos( $item, ',' ) !== false ) {
291 $item = VISUALIZER_CSV_ENCLOSURE . $item . VISUALIZER_CSV_ENCLOSURE;
292 }
293 $temp_array[] = $item;
294 }
295 $array = $temp_array;
296 }
297 $csv .= implode( ',', $array );
298 }
299 fclose( $fp );
300
301 return array(
302 'csv' => $csv,
303 'name' => $filename,
304 'string' => str_replace( $bom, '', $csv ),
305 );
306 }
307
308 /**
309 * Prepares an Excel file.
310 *
311 * @access private
312 * @param array $rows The array of data.
313 * @param string $filename The name of the file to use.
314 */
315 private function _getExcel( $rows, $filename ) {
316 // PHPExcel did not like sheet names longer than 31 characters and we will assume the same with PhpSpreadsheet
317 $chart = substr( $filename, 0, 30 );
318 $filename .= '.xlsx';
319 if ( ! apply_filters( 'vizualizer_export_include_series_type', true ) ) {
320 unset( $rows[1] );
321 $rows = array_values( $rows );
322 $rows = array_map(
323 function( $r ) {
324 return array_map( 'strval', $r );
325 },
326 $rows
327 );
328 }
329 $vendor_file = VISUALIZER_ABSPATH . '/vendor/autoload.php';
330 if ( is_readable( $vendor_file ) ) {
331 include_once( $vendor_file );
332 }
333 $xlsData = '';
334 if ( class_exists( 'PhpOffice\PhpSpreadsheet\Spreadsheet' ) ) {
335 $doc = new PhpOffice\PhpSpreadsheet\Spreadsheet();
336 $doc->getActiveSheet()->fromArray( $rows, null, 'A1' );
337 $doc->getActiveSheet()->setTitle( sanitize_title( $chart ) );
338 $doc = apply_filters( 'visualizer_excel_doc', $doc );
339 $writer = PhpOffice\PhpSpreadsheet\IOFactory::createWriter( $doc, 'Xlsx' );
340 ob_start();
341 $writer->save( 'php://output' );
342 $xlsData = ob_get_contents();
343 ob_end_clean();
344 } else {
345 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, 'Class PhpOffice\PhpSpreadsheet\Spreadsheet does not exist!', 'error', __FILE__, __LINE__ );
346 error_log( 'Class PhpOffice\PhpSpreadsheet\Spreadsheet does not exist!' );
347 }
348 return array(
349 'csv' => 'data:application/vnd.ms-excel;base64,' . base64_encode( $xlsData ),
350 'name' => $filename,
351 'raw' => base64_encode( $xlsData ),
352 );
353 }
354
355 /**
356 * Prepares an HTML table.
357 *
358 * @access private
359 * @param array $rows The array of data.
360 */
361 private function _getHTML( $rows ) {
362 $css = '
363 table.visualizer-print {
364 border-collapse: collapse;
365 }
366 table.visualizer-print, table.visualizer-print th, table.visualizer-print td {
367 border: 1px solid #000;
368 }
369 ';
370 $html = '';
371 $html .= '
372 <html>
373 <head>
374 <style>
375 ' . apply_filters( 'visualizer_print_css', $css ) . '
376 </style>
377 </head>
378 <body>';
379
380 $table = '<table class="visualizer-print">';
381 $index = 0;
382 foreach ( $rows as $row ) {
383 // skip the data type row.
384 if ( 1 === $index ) {
385 $index++;
386 continue;
387 }
388
389 $table .= '<tr>';
390 foreach ( $row as $col ) {
391 if ( $index === 0 ) {
392 $table .= '<th>' . $col . '</th>';
393 } else {
394 $table .= '<td>' . $col . '</td>';
395 }
396 }
397 $table .= '</tr>';
398 $index++;
399 }
400 $table .= '</table>';
401
402 $html .= apply_filters( 'visualizer_print_table', $table ) . '
403 </body>
404 </html>';
405 return array(
406 'csv' => $html,
407 );
408 }
409
410 /**
411 * Disable revisions temporarily for visualizer post type.
412 */
413 protected final function disableRevisionsTemporarily() {
414 add_filter(
415 'wp_revisions_to_keep', function( $num, $post ) {
416 if ( $post->post_type === Visualizer_Plugin::CPT_VISUALIZER ) {
417 return 0;
418 }
419 return $num;
420 }, 10, 2
421 );
422 }
423
424 /**
425 * Undo revisions for the chart, and if necessary, restore the earliest version.
426 *
427 * @return bool If any revisions were found.
428 */
429 public final function undoRevisions( $chart_id, $restore = false ) {
430 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'undoRevisions for %d with%s restore', $chart_id, ( $restore ? '' : 'out' ) ), 'debug', __FILE__, __LINE__ );
431 if ( get_post_type( $chart_id ) !== Visualizer_Plugin::CPT_VISUALIZER ) {
432 return false;
433 }
434 $revisions = wp_get_post_revisions( $chart_id, array( 'order' => 'ASC' ) );
435 if ( count( $revisions ) > 1 ) {
436 $revision_ids = array_keys( $revisions );
437
438 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'found %d revisions = %s', count( $revisions ), print_r( $revision_ids, true ) ), 'debug', __FILE__, __LINE__ );
439
440 // when we restore, a new revision is likely to be created. so, let's disable revisions for the time being.
441 $this->disableRevisionsTemporarily();
442
443 if ( $restore ) {
444 // restore to the oldest one i.e. the first one.
445 wp_restore_post_revision( array_shift( $revision_ids ) );
446 }
447
448 // delete all revisions.
449 foreach ( $revision_ids as $id ) {
450 wp_delete_post_revision( $id );
451 }
452
453 return true;
454 }
455 return false;
456 }
457
458 /**
459 * If existing revisions exist for the chart, restore the earliest version and then create a new revision to initiate editing.
460 */
461 public final function handleExistingRevisions( $chart_id, $chart ) {
462
463 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'handleExistingRevisions for %d', $chart_id ), 'debug', __FILE__, __LINE__ );
464 if ( get_post_type( $chart_id ) !== Visualizer_Plugin::CPT_VISUALIZER ) {
465 return $chart_id;
466 }
467 // undo revisions.
468 $revisions_found = $this->undoRevisions( $chart_id, true );
469
470 // create revision for the edit action.
471 wp_save_post_revision( $chart_id );
472
473 if ( $revisions_found ) {
474 // fetch chart data again in case it was updated by an earlier revision.
475 $chart = get_post( $chart_id );
476 }
477 return $chart;
478 }
479
480 /**
481 * Returns the language of the locale.
482 *
483 * @access protected
484 */
485 protected function get_language() {
486 $locale = get_locale();
487 if ( empty( $locale ) ) {
488 return '';
489 }
490 $array = explode( '_', $locale );
491 if ( count( $array ) < 2 ) {
492 return '';
493 }
494 return reset( $array );
495 }
496
497 /**
498 * Gets/creates the JS where user-specific customizations can be/have been added.
499 */
500 protected function get_user_customization_js() {
501 // use this as the JS file in case we are not able to create the file in uploads.
502 $default = VISUALIZER_ABSURL . 'js/customization.js';
503
504 $uploads = wp_get_upload_dir();
505 $specific = $uploads['baseurl'] . '/visualizer/customization.js';
506
507 // for testing on user sites (before we send them the correctly customized file).
508 if ( VISUALIZER_TEST_JS_CUSTOMIZATION ) {
509 return $default;
510 }
511
512 require_once( ABSPATH . 'wp-admin/includes/file.php' );
513 WP_Filesystem();
514 global $wp_filesystem;
515
516 $multisite_arg = '/';
517 if ( is_multisite() && ! is_main_site() ) {
518 $multisite_arg = '/sites/' . get_current_blog_id() . '/';
519 }
520
521 $dir = $wp_filesystem->wp_content_dir() . 'uploads' . $multisite_arg . 'visualizer';
522 $file = $wp_filesystem->wp_content_dir() . 'uploads' . $multisite_arg . 'visualizer/customization.js';
523
524 if ( $wp_filesystem->is_readable( $file ) ) {
525 return $specific;
526 }
527
528 if ( $wp_filesystem->exists( $file ) && ! $wp_filesystem->is_readable( $file ) ) {
529 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to read file %s', $file ), 'error', __FILE__, __LINE__ );
530 return $default;
531 }
532
533 if ( ! $wp_filesystem->exists( $dir ) ) {
534 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
535 if ( ( $done = $wp_filesystem->mkdir( $dir ) ) === false ) {
536 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to create directory %s', $dir ), 'error', __FILE__, __LINE__ );
537 return $default;
538 }
539 }
540
541 // if file does not exist, copy.
542 if ( ! $wp_filesystem->exists( $file ) ) {
543 $src = str_replace( ABSPATH, $wp_filesystem->abspath(), VISUALIZER_ABSPATH . '/js/customization.js' );
544 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
545 if ( ( $done = $wp_filesystem->copy( $src, $file ) ) === false ) {
546 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to copy file %s to %s', $src, $file ), 'error', __FILE__, __LINE__ );
547 return $default;
548 }
549 }
550
551 return $specific;
552 }
553
554 /**
555 * Load the class for the given chart's chart type so that its assets can be loaded.
556 */
557 protected function load_chart_type( $chart_id ) {
558 $name = $this->load_chart_class_name( $chart_id );
559 $class = null;
560 if ( class_exists( $name ) || true === apply_filters( 'visualizer_load_chart', false, $name ) ) {
561 if ( 'Visualizer_Render_Sidebar_Type_DataTable_DataTable' === $name ) {
562 $name = 'Visualizer_Render_Sidebar_Type_DataTable_Tabular';
563 }
564 $class = new $name;
565 }
566
567 if ( is_null( $class ) && Visualizer_Module::is_pro() ) {
568 // lets see if this type exists in pro. New Lite(3.1.0+) & old Pro(1.8.0-).
569 $type = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_TYPE, true );
570 $class = apply_filters( 'visualizer_pro_chart_type_sidebar', null, array( 'id' => $chart_id, 'type' => $type, 'settings' => get_post_meta( $chart_id, Visualizer_Plugin::CF_SETTINGS, true ) ) );
571 }
572
573 return is_null( $class ) ? null : $class->getLibrary();
574 }
575
576 /**
577 * Returns the class name for the given chart's chart type.
578 */
579 protected function load_chart_class_name( $chart_id ) {
580 $type = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_TYPE, true );
581 $lib = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_LIBRARY, true );
582
583 // backward compatibility.
584 if ( empty( $lib ) ) {
585 $lib = 'GoogleCharts';
586 if ( 'dataTable' === $type ) {
587 $lib = 'DataTable';
588 }
589 }
590 $name = 'Visualizer_Render_Sidebar_Type_' . $lib . '_' . ucwords( $type );
591 return $name;
592 }
593
594 /**
595 * Generates the inline CSS to apply to the chart and adds these classes to the settings.
596 *
597 * @access public
598 * @param int $id The id of the chart.
599 * @param array $settings The settings of the chart.
600 */
601 protected function get_inline_custom_css( $id, $settings ) {
602 $css = '';
603
604 $arguments = array( '', $settings );
605 if ( ! isset( $settings['customcss'] ) ) {
606 return $arguments;
607 }
608
609 $classes = array();
610 $css = '<style type="text/css" name="visualizer-custom-css" id="customcss-' . $id . '">';
611 foreach ( $settings['customcss'] as $name => $element ) {
612 $attributes = array();
613 foreach ( $element as $property => $value ) {
614 $attributes[] = $this->handle_css_property( $property, $value );
615 }
616 $class_name = $id . $name;
617 $properties = implode( ' !important; ', array_filter( $attributes ) );
618 if ( ! empty( $properties ) ) {
619 $css .= '.' . $class_name . ' {' . $properties . ' !important;}';
620 $classes[ $name ] = $class_name;
621 }
622 }
623 $css .= '</style>';
624
625 $settings['cssClassNames'] = $classes;
626
627 $arguments = array( $css, $settings );
628 apply_filters_ref_array( 'visualizer_inline_css', array( &$arguments ) );
629
630 return $arguments;
631 }
632
633 /**
634 * Handles CSS properties that might need special syntax.
635 *
636 * @access private
637 * @param string $property The name of the css property.
638 * @param string $value The value of the css property.
639 */
640 private function handle_css_property( $property, $value ) {
641 if ( empty( $property ) || empty( $value ) ) {
642 return '';
643 }
644
645 switch ( $property ) {
646 case 'transform':
647 $value = 'rotate(' . $value . 'deg)';
648 break;
649 }
650 return $property . ': ' . $value;
651 }
652
653 /**
654 * Determines if charts have been created of the particular chart type.
655 */
656 protected static function hasChartType( $type ) {
657 $args = array(
658 'post_type' => Visualizer_Plugin::CPT_VISUALIZER,
659 'fields' => 'ids',
660 'post_status' => 'publish',
661 'meta_query' => array(
662 array(
663 'key' => Visualizer_Plugin::CF_CHART_TYPE,
664 'value' => $type,
665 ),
666 ),
667 );
668
669 $q = new WP_Query( $args );
670 return $q->found_posts > 0;
671 }
672
673 /**
674 * Determines how many charts have been created.
675 */
676 protected static function numberOfCharts() {
677 $args = array(
678 'post_type' => Visualizer_Plugin::CPT_VISUALIZER,
679 'fields' => 'ids',
680 'post_status' => 'publish',
681 'posts_per_page' => 300,
682 );
683
684 $q = new WP_Query( $args );
685 return $q->found_posts;
686 }
687
688 /**
689 * Checks if the PRO version is active.
690 *
691 * @since 3.3.0
692 */
693 public static function is_pro() {
694 // versions of pro before 1.9.0 will use the constant VISUALIZER_PRO
695 // versions of pro 1.9.0 onwards will use the filter
696 return apply_filters( 'visualizer_is_pro', VISUALIZER_PRO );
697 }
698
699 /**
700 * Checks if the PRO version is older than a particular version.
701 *
702 * @since 3.3.0
703 */
704 public static function is_pro_older_than( $version ) {
705 return version_compare( VISUALIZER_PRO_VERSION, $version, '<' );
706 }
707
708 /**
709 * Should we show some specific feature on the basis of the version?
710 *
711 * @since 3.4.0
712 */
713 public static function can_show_feature( $feature ) {
714 switch ( $feature ) {
715 case 'simple-editor':
716 // if user has pro but an older version, then don't load the simple editor functionality
717 // as the select box will not behave as expected because the pro editor's functionality will supercede.
718 return ! Visualizer_Module::is_pro() || ! Visualizer_Module::is_pro_older_than( '1.9.2' );
719 }
720 return false;
721 }
722
723 /**
724 * Gets the features for the provided license type.
725 */
726 public static final function get_features_for_license( $plan ) {
727 switch ( $plan ) {
728 case 1:
729 return array( 'import-wp', 'db-query' );
730 case 2:
731 return array( 'schedule-chart', 'chart-permissions' );
732 }
733 }
734
735 /**
736 * Gets the chart content after common manipulations.
737 */
738 public static function get_chart_data( $chart, $type, $run_filter = true ) {
739 // change HTML entities
740 $data = unserialize( html_entity_decode( $chart->post_content ) );
741 $altered = array();
742 foreach ( $data as $index => $array ) {
743 if ( ! is_array( $index ) && is_array( $array ) ) {
744 foreach ( $array as &$datum ) {
745 if ( is_string( $datum ) ) {
746 $datum = stripslashes( $datum );
747 }
748 }
749 $altered[ $index ] = $array;
750 }
751 }
752 // if something goes wrong and the end result is empty, be safe and use the original data
753 if ( empty( $altered ) ) {
754 $altered = $data;
755 }
756 if ( $run_filter ) {
757 return apply_filters( Visualizer_Plugin::FILTER_GET_CHART_DATA, $altered, $chart->ID, $type );
758 }
759 return $altered;
760 }
761 }
762