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Visualizer – Tables & Charts Manager with Built-in AI Generator / 3.4.7
Visualizer – Tables & Charts Manager with Built-in AI Generator v3.4.7
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visualizer / classes / Visualizer / Module.php

Module.php in Visualizer – Tables & Charts Manager with Built-in AI Generator 3.4.7, 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 // support for MS Excel
270 fprintf( $fp, $bom );
271 foreach ( $rows as $row ) {
272 fputcsv( $fp, $row );
273 }
274 rewind( $fp );
275 $csv = '';
276 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
277 while ( ( $array = fgetcsv( $fp ) ) !== false ) {
278 if ( strlen( $csv ) > 0 ) {
279 $csv .= PHP_EOL;
280 }
281 // if enclosure is required, check every item of this line
282 // if a comma exists in the item, add enclosure.
283 if ( $enclose ) {
284 $temp_array = array();
285 foreach ( $array as $item ) {
286 if ( strpos( $item, ',' ) !== false ) {
287 $item = VISUALIZER_CSV_ENCLOSURE . $item . VISUALIZER_CSV_ENCLOSURE;
288 }
289 $temp_array[] = $item;
290 }
291 $array = $temp_array;
292 }
293 $csv .= implode( ',', $array );
294 }
295 fclose( $fp );
296
297 return array(
298 'csv' => $csv,
299 'name' => $filename,
300 'string' => str_replace( $bom, '', $csv ),
301 );
302 }
303
304 /**
305 * Prepares an Excel file.
306 *
307 * @access private
308 * @param array $rows The array of data.
309 * @param string $filename The name of the file to use.
310 */
311 private function _getExcel( $rows, $filename ) {
312 // PHPExcel did not like sheet names longer than 31 characters and we will assume the same with PhpSpreadsheet
313 $chart = substr( $filename, 0, 30 );
314 $filename .= '.xlsx';
315
316 $vendor_file = VISUALIZER_ABSPATH . '/vendor/autoload.php';
317 if ( is_readable( $vendor_file ) ) {
318 include_once( $vendor_file );
319 }
320
321 $xlsData = '';
322 if ( class_exists( 'PhpOffice\PhpSpreadsheet\Spreadsheet' ) ) {
323 $doc = new PhpOffice\PhpSpreadsheet\Spreadsheet();
324 $doc->getActiveSheet()->fromArray( $rows, null, 'A1' );
325 $doc->getActiveSheet()->setTitle( sanitize_title( $chart ) );
326 $doc = apply_filters( 'visualizer_excel_doc', $doc );
327 $writer = PhpOffice\PhpSpreadsheet\IOFactory::createWriter( $doc, 'Xlsx' );
328 ob_start();
329 $writer->save( 'php://output' );
330 $xlsData = ob_get_contents();
331 ob_end_clean();
332 } else {
333 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, 'Class PhpOffice\PhpSpreadsheet\Spreadsheet does not exist!', 'error', __FILE__, __LINE__ );
334 error_log( 'Class PhpOffice\PhpSpreadsheet\Spreadsheet does not exist!' );
335 }
336 return array(
337 'csv' => 'data:application/vnd.ms-excel;base64,' . base64_encode( $xlsData ),
338 'name' => $filename,
339 'raw' => base64_encode( $xlsData ),
340 );
341 }
342
343 /**
344 * Prepares an HTML table.
345 *
346 * @access private
347 * @param array $rows The array of data.
348 */
349 private function _getHTML( $rows ) {
350 $css = '
351 table.visualizer-print {
352 border-collapse: collapse;
353 }
354 table.visualizer-print, table.visualizer-print th, table.visualizer-print td {
355 border: 1px solid #000;
356 }
357 ';
358 $html = '';
359 $html .= '
360 <html>
361 <head>
362 <style>
363 ' . apply_filters( 'visualizer_print_css', $css ) . '
364 </style>
365 </head>
366 <body>';
367
368 $table = '<table class="visualizer-print">';
369 $index = 0;
370 foreach ( $rows as $row ) {
371 // skip the data type row.
372 if ( 1 === $index ) {
373 $index++;
374 continue;
375 }
376
377 $table .= '<tr>';
378 foreach ( $row as $col ) {
379 if ( $index === 0 ) {
380 $table .= '<th>' . $col . '</th>';
381 } else {
382 $table .= '<td>' . $col . '</td>';
383 }
384 }
385 $table .= '</tr>';
386 $index++;
387 }
388 $table .= '</table>';
389
390 $html .= apply_filters( 'visualizer_print_table', $table ) . '
391 </body>
392 </html>';
393 return array(
394 'csv' => $html,
395 );
396 }
397
398 /**
399 * Disable revisions temporarily for visualizer post type.
400 */
401 protected final function disableRevisionsTemporarily() {
402 add_filter(
403 'wp_revisions_to_keep', function( $num, $post ) {
404 if ( $post->post_type === Visualizer_Plugin::CPT_VISUALIZER ) {
405 return 0;
406 }
407 return $num;
408 }, 10, 2
409 );
410 }
411
412 /**
413 * Undo revisions for the chart, and if necessary, restore the earliest version.
414 *
415 * @return bool If any revisions were found.
416 */
417 public final function undoRevisions( $chart_id, $restore = false ) {
418 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'undoRevisions for %d with%s restore', $chart_id, ( $restore ? '' : 'out' ) ), 'debug', __FILE__, __LINE__ );
419 if ( get_post_type( $chart_id ) !== Visualizer_Plugin::CPT_VISUALIZER ) {
420 return false;
421 }
422 $revisions = wp_get_post_revisions( $chart_id, array( 'order' => 'ASC' ) );
423 if ( count( $revisions ) > 1 ) {
424 $revision_ids = array_keys( $revisions );
425
426 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'found %d revisions = %s', count( $revisions ), print_r( $revision_ids, true ) ), 'debug', __FILE__, __LINE__ );
427
428 // when we restore, a new revision is likely to be created. so, let's disable revisions for the time being.
429 $this->disableRevisionsTemporarily();
430
431 if ( $restore ) {
432 // restore to the oldest one i.e. the first one.
433 wp_restore_post_revision( array_shift( $revision_ids ) );
434 }
435
436 // delete all revisions.
437 foreach ( $revision_ids as $id ) {
438 wp_delete_post_revision( $id );
439 }
440
441 return true;
442 }
443 return false;
444 }
445
446 /**
447 * If existing revisions exist for the chart, restore the earliest version and then create a new revision to initiate editing.
448 */
449 public final function handleExistingRevisions( $chart_id, $chart ) {
450
451 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'handleExistingRevisions for %d', $chart_id ), 'debug', __FILE__, __LINE__ );
452 if ( get_post_type( $chart_id ) !== Visualizer_Plugin::CPT_VISUALIZER ) {
453 return $chart_id;
454 }
455 // undo revisions.
456 $revisions_found = $this->undoRevisions( $chart_id, true );
457
458 // create revision for the edit action.
459 wp_save_post_revision( $chart_id );
460
461 if ( $revisions_found ) {
462 // fetch chart data again in case it was updated by an earlier revision.
463 $chart = get_post( $chart_id );
464 }
465 return $chart;
466 }
467
468 /**
469 * Returns the language of the locale.
470 *
471 * @access protected
472 */
473 protected function get_language() {
474 $locale = get_locale();
475 if ( empty( $locale ) ) {
476 return '';
477 }
478 $array = explode( '_', $locale );
479 if ( count( $array ) < 2 ) {
480 return '';
481 }
482 return reset( $array );
483 }
484
485 /**
486 * Gets/creates the JS where user-specific customizations can be/have been added.
487 */
488 protected function get_user_customization_js() {
489 // use this as the JS file in case we are not able to create the file in uploads.
490 $default = VISUALIZER_ABSURL . 'js/customization.js';
491
492 $uploads = wp_get_upload_dir();
493 $specific = $uploads['baseurl'] . '/visualizer/customization.js';
494
495 // for testing on user sites (before we send them the correctly customized file).
496 if ( VISUALIZER_TEST_JS_CUSTOMIZATION ) {
497 return $default;
498 }
499
500 require_once( ABSPATH . 'wp-admin/includes/file.php' );
501 WP_Filesystem();
502 global $wp_filesystem;
503
504 $multisite_arg = '/';
505 if ( is_multisite() && ! is_main_site() ) {
506 $multisite_arg = '/sites/' . get_current_blog_id() . '/';
507 }
508
509 $dir = $wp_filesystem->wp_content_dir() . 'uploads' . $multisite_arg . 'visualizer';
510 $file = $wp_filesystem->wp_content_dir() . 'uploads' . $multisite_arg . 'visualizer/customization.js';
511
512 if ( $wp_filesystem->is_readable( $file ) ) {
513 return $specific;
514 }
515
516 if ( $wp_filesystem->exists( $file ) && ! $wp_filesystem->is_readable( $file ) ) {
517 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to read file %s', $file ), 'error', __FILE__, __LINE__ );
518 return $default;
519 }
520
521 if ( ! $wp_filesystem->exists( $dir ) ) {
522 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
523 if ( ( $done = $wp_filesystem->mkdir( $dir ) ) === false ) {
524 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to create directory %s', $dir ), 'error', __FILE__, __LINE__ );
525 return $default;
526 }
527 }
528
529 // if file does not exist, copy.
530 if ( ! $wp_filesystem->exists( $file ) ) {
531 $src = str_replace( ABSPATH, $wp_filesystem->abspath(), VISUALIZER_ABSPATH . '/js/customization.js' );
532 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
533 if ( ( $done = $wp_filesystem->copy( $src, $file ) ) === false ) {
534 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to copy file %s to %s', $src, $file ), 'error', __FILE__, __LINE__ );
535 return $default;
536 }
537 }
538
539 return $specific;
540 }
541
542 /**
543 * Load the class for the given chart's chart type so that its assets can be loaded.
544 */
545 protected function load_chart_type( $chart_id ) {
546 $name = $this->load_chart_class_name( $chart_id );
547 $class = null;
548 if ( class_exists( $name ) || true === apply_filters( 'visualizer_load_chart', false, $name ) ) {
549 if ( 'Visualizer_Render_Sidebar_Type_DataTable_DataTable' === $name ) {
550 $name = 'Visualizer_Render_Sidebar_Type_DataTable_Tabular';
551 }
552 $class = new $name;
553 }
554
555 if ( is_null( $class ) && Visualizer_Module::is_pro() ) {
556 // lets see if this type exists in pro. New Lite(3.1.0+) & old Pro(1.8.0-).
557 $type = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_TYPE, true );
558 $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 ) ) );
559 }
560
561 return is_null( $class ) ? null : $class->getLibrary();
562 }
563
564 /**
565 * Returns the class name for the given chart's chart type.
566 */
567 protected function load_chart_class_name( $chart_id ) {
568 $type = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_TYPE, true );
569 $lib = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_LIBRARY, true );
570
571 // backward compatibility.
572 if ( empty( $lib ) ) {
573 $lib = 'GoogleCharts';
574 if ( 'dataTable' === $type ) {
575 $lib = 'DataTable';
576 }
577 }
578 $name = 'Visualizer_Render_Sidebar_Type_' . $lib . '_' . ucwords( $type );
579 return $name;
580 }
581
582 /**
583 * Generates the inline CSS to apply to the chart and adds these classes to the settings.
584 *
585 * @access public
586 * @param int $id The id of the chart.
587 * @param array $settings The settings of the chart.
588 */
589 protected function get_inline_custom_css( $id, $settings ) {
590 $css = '';
591
592 $arguments = array( '', $settings );
593 if ( ! isset( $settings['customcss'] ) ) {
594 return $arguments;
595 }
596
597 $classes = array();
598 $css = '<style type="text/css" name="visualizer-custom-css" id="customcss-' . $id . '">';
599 foreach ( $settings['customcss'] as $name => $element ) {
600 $attributes = array();
601 foreach ( $element as $property => $value ) {
602 $attributes[] = $this->handle_css_property( $property, $value );
603 }
604 $class_name = $id . $name;
605 $properties = implode( ' !important; ', array_filter( $attributes ) );
606 if ( ! empty( $properties ) ) {
607 $css .= '.' . $class_name . ' {' . $properties . ' !important;}';
608 $classes[ $name ] = $class_name;
609 }
610 }
611 $css .= '</style>';
612
613 $settings['cssClassNames'] = $classes;
614
615 $arguments = array( $css, $settings );
616 apply_filters_ref_array( 'visualizer_inline_css', array( &$arguments ) );
617
618 return $arguments;
619 }
620
621 /**
622 * Handles CSS properties that might need special syntax.
623 *
624 * @access private
625 * @param string $property The name of the css property.
626 * @param string $value The value of the css property.
627 */
628 private function handle_css_property( $property, $value ) {
629 if ( empty( $property ) || empty( $value ) ) {
630 return '';
631 }
632
633 switch ( $property ) {
634 case 'transform':
635 $value = 'rotate(' . $value . 'deg)';
636 break;
637 }
638 return $property . ': ' . $value;
639 }
640
641 /**
642 * Determines if charts have been created of the particular chart type.
643 */
644 protected static function hasChartType( $type ) {
645 $args = array(
646 'post_type' => Visualizer_Plugin::CPT_VISUALIZER,
647 'fields' => 'ids',
648 'post_status' => 'publish',
649 'meta_query' => array(
650 array(
651 'key' => Visualizer_Plugin::CF_CHART_TYPE,
652 'value' => $type,
653 ),
654 ),
655 );
656
657 $q = new WP_Query( $args );
658 return $q->found_posts > 0;
659 }
660
661 /**
662 * Determines how many charts have been created.
663 */
664 protected static function numberOfCharts() {
665 $args = array(
666 'post_type' => Visualizer_Plugin::CPT_VISUALIZER,
667 'fields' => 'ids',
668 'post_status' => 'publish',
669 'posts_per_page' => 300,
670 );
671
672 $q = new WP_Query( $args );
673 return $q->found_posts;
674 }
675
676 /**
677 * Checks if the PRO version is active.
678 *
679 * @since 3.3.0
680 */
681 public static function is_pro() {
682 // versions of pro before 1.9.0 will use the constant VISUALIZER_PRO
683 // versions of pro 1.9.0 onwards will use the filter
684 return apply_filters( 'visualizer_is_pro', VISUALIZER_PRO );
685 }
686
687 /**
688 * Checks if the PRO version is older than a particular version.
689 *
690 * @since 3.3.0
691 */
692 public static function is_pro_older_than( $version ) {
693 return version_compare( VISUALIZER_PRO_VERSION, $version, '<' );
694 }
695
696 /**
697 * Should we show some specific feature on the basis of the version?
698 *
699 * @since 3.4.0
700 */
701 public static function can_show_feature( $feature ) {
702 switch ( $feature ) {
703 case 'simple-editor':
704 // if user has pro but an older version, then don't load the simple editor functionality
705 // as the select box will not behave as expected because the pro editor's functionality will supercede.
706 return ! Visualizer_Module::is_pro() || ! Visualizer_Module::is_pro_older_than( '1.9.2' );
707 }
708 return false;
709 }
710
711 /**
712 * Gets the features for the provided license type.
713 */
714 public static final function get_features_for_license( $plan ) {
715 switch ( $plan ) {
716 case 1:
717 return array( 'import-wp', 'db-query' );
718 case 2:
719 return array( 'schedule-chart', 'chart-permissions' );
720 }
721 }
722
723 /**
724 * Gets the chart content after common manipulations.
725 */
726 public static function get_chart_data( $chart, $type, $run_filter = true ) {
727 // change HTML entities
728 $data = unserialize( html_entity_decode( $chart->post_content ) );
729 $altered = array();
730 foreach ( $data as $index => $array ) {
731 if ( ! is_array( $index ) && is_array( $array ) ) {
732 foreach ( $array as &$datum ) {
733 if ( is_string( $datum ) ) {
734 $datum = stripslashes( $datum );
735 }
736 }
737 $altered[ $index ] = $array;
738 }
739 }
740 // if something goes wrong and the end result is empty, be safe and use the original data
741 if ( empty( $altered ) ) {
742 $altered = $data;
743 }
744 if ( $run_filter ) {
745 return apply_filters( Visualizer_Plugin::FILTER_GET_CHART_DATA, $altered, $chart->ID, $type );
746 }
747 return $altered;
748 }
749 }
750