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Visualizer – Tables & Charts Manager with Built-in AI Generator / 3.8.1
Visualizer – Tables & Charts Manager with Built-in AI Generator v3.8.1
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visualizer / classes / Visualizer / Module.php

Module.php in Visualizer – Tables & Charts Manager with Built-in AI Generator 3.8.1, 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 $this->_addAction( 'pre_get_posts', 'PreGetPosts' );
71 register_shutdown_function( array($this, 'onShutdown') );
72
73 }
74
75 /**
76 * Register a shutdown hook to catch fatal errors.
77 *
78 * @since ?
79 *
80 * @access public
81 */
82 public function onShutdown() {
83 $error = error_get_last();
84 if ( $error && $error['type'] === E_ERROR && false !== strpos( $error['file'], 'Visualizer/' ) ) {
85 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Critical error %s', print_r( $error, true ) ), 'error', __FILE__, __LINE__ );
86 }
87 }
88
89 /**
90 * Registers an action hook.
91 *
92 * @since 1.0.0
93 * @uses add_action() To register action hook.
94 *
95 * @access protected
96 * @param string $tag The name of the action to which the $method is hooked.
97 * @param string $method The name of the method to be called.
98 * @param bool $methodClass The root of the method.
99 * @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.
100 * @param int $accepted_args optional. The number of arguments the function accept (default 1).
101 * @return Visualizer_Module
102 */
103 protected function _addAction( $tag, $method, $methodClass = null, $priority = 10, $accepted_args = 1 ) {
104 add_action( $tag, array( $methodClass ? $methodClass : $this, $method ), $priority, $accepted_args );
105 return $this;
106 }
107
108 /**
109 * Registers AJAX action hook.
110 *
111 * @since 1.0.0
112 *
113 * @access public
114 * @param string $tag The name of the AJAX action to which the $method is hooked.
115 * @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.
116 * @param bool $methodClass The root of the method.
117 * @param boolean $private Optional. Determines if we should register hook for logged in users.
118 * @param boolean $public Optional. Determines if we should register hook for not logged in users.
119 * @return Visualizer_Module
120 */
121 protected function _addAjaxAction( $tag, $method = '', $methodClass = null, $private = true, $public = false ) {
122 if ( $private ) {
123 $this->_addAction( 'wp_ajax_' . $tag, $method, $methodClass );
124 }
125
126 if ( $public ) {
127 $this->_addAction( 'wp_ajax_nopriv_' . $tag, $method, $methodClass );
128 }
129
130 return $this;
131 }
132
133 /**
134 * Registers a filter hook.
135 *
136 * @since 1.0.0
137 * @uses add_filter() To register filter hook.
138 *
139 * @access protected
140 * @param string $tag The name of the filter to hook the $method to.
141 * @param type $method The name of the method to be called when the filter is applied.
142 * @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.
143 * @param int $accepted_args optional. The number of arguments the function accept (default 1).
144 * @return Visualizer_Module
145 */
146 protected function _addFilter( $tag, $method, $priority = 10, $accepted_args = 1 ) {
147 add_filter( $tag, array( $this, $method ), $priority, $accepted_args );
148 return $this;
149 }
150
151 /**
152 * Registers a hook for shortcode tag.
153 *
154 * @since 1.0.0
155 * @uses add_shortcode() To register shortcode hook.
156 *
157 * @access protected
158 * @param string $tag Shortcode tag to be searched in post content.
159 * @param string $method Hook to run when shortcode is found.
160 * @return Visualizer_Module
161 */
162 protected function _addShortcode( $tag, $method ) {
163 add_shortcode( $tag, array( $this, $method ) );
164 return $this;
165 }
166
167 /**
168 * A wrapper around the actual function _getDataAs. This function is invoked as a filter.
169 *
170 * @since 3.2.0
171 */
172 public function getDataAs( $final, $chart_id, $type ) {
173 return $this->_getDataAs( $chart_id, $type );
174 }
175
176 /**
177 * Extracts the data for a chart and prepares it for the given type.
178 *
179 * @access public
180 * @param int $chart_id The chart id.
181 * @param string $type The exported type.
182 */
183 public function _getDataAs( $chart_id, $type ) {
184 $final = null;
185 $success = false;
186 if ( $chart_id ) {
187 $chart = get_post( $chart_id );
188 $success = $chart && $chart->post_type === Visualizer_Plugin::CPT_VISUALIZER;
189 }
190 if ( $success ) {
191 $settings = get_post_meta( $chart_id, Visualizer_Plugin::CF_SETTINGS, true );
192 $rows = array();
193 $series = get_post_meta( $chart_id, Visualizer_Plugin::CF_SERIES, true );
194 $data = self::get_chart_data( $chart, $type, false );
195 if ( ! empty( $series ) ) {
196 $row = array();
197 foreach ( $series as $array ) {
198 $row[] = $array['label'];
199 }
200 $rows[] = $row;
201 $row = array();
202 foreach ( $series as $array ) {
203 $row[] = $array['type'];
204 }
205 $rows[] = $row;
206 }
207 if ( ! empty( $data ) ) {
208 foreach ( $data as $array ) {
209 // ignore strings
210 if ( ! is_array( $array ) ) {
211 continue;
212 }
213 // if this is an array of arrays...
214 if ( is_array( $array[0] ) ) {
215 foreach ( $array as $arr ) {
216 $rows[] = $arr;
217 }
218 } else {
219 // just an array
220 $rows[] = $array;
221 }
222 }
223 }
224
225 $title = 'visualizer#' . $chart_id;
226 if ( ! empty( $settings['title'] ) ) {
227 $title = $settings['title'];
228 }
229 // for ChartJS, title is an array.
230 if ( is_array( $title ) && isset( $title['text'] ) ) {
231 $title = $title['text'];
232 }
233 if ( empty( $title ) ) {
234 $title = 'visualizer#' . $chart_id;
235 }
236
237 $filename = $title;
238
239 switch ( $type ) {
240 case 'csv':
241 $final = $this->_getCSV( $rows, $filename, false );
242 break;
243 case 'csv-display':
244 $final = $this->_getCSV( $rows, $filename, true );
245 break;
246 case 'xls':
247 $final = $this->_getExcel( $rows, $filename );
248 break;
249 case 'print':
250 $final = $this->_getHTML( $rows );
251 break;
252 case 'image':
253 $final = $this->_getImage( $chart );
254 break;
255 }
256 }
257 return $final;
258 }
259
260 /**
261 * Prepares a CSV.
262 *
263 * @access private
264 * @param array $rows The array of data.
265 * @param string $filename The name of the file to use.
266 * @param bool $enclose Enclose strings that have commas in them in double quotes.
267 */
268 private function _getCSV( $rows, $filename, $enclose ) {
269 $filename .= '.csv';
270
271 $bom = chr( 0xEF ) . chr( 0xBB ) . chr( 0xBF );
272 $fp = tmpfile();
273 if ( null === $fp ) {
274 $fp = fopen( wp_tempnam(), 'w+' );
275 }
276 if ( ! apply_filters( 'vizualizer_export_include_series_type', true ) ) {
277 unset( $rows[1] );
278 $rows = array_values( $rows );
279 }
280 // support for MS Excel
281 fprintf( $fp, $bom );
282 foreach ( $rows as $row ) {
283 fputcsv( $fp, $row );
284 }
285 rewind( $fp );
286 $csv = '';
287 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.FoundInWhileCondition
288 while ( ( $array = fgetcsv( $fp ) ) !== false ) {
289 if ( strlen( $csv ) > 0 ) {
290 $csv .= PHP_EOL;
291 }
292 // if enclosure is required, check every item of this line
293 // if a comma exists in the item, add enclosure.
294 if ( $enclose ) {
295 $temp_array = array();
296 foreach ( $array as $item ) {
297 if ( strpos( $item, ',' ) !== false ) {
298 $item = VISUALIZER_CSV_ENCLOSURE . $item . VISUALIZER_CSV_ENCLOSURE;
299 }
300 $temp_array[] = $item;
301 }
302 $array = $temp_array;
303 }
304 $csv .= implode( ',', $array );
305 }
306 fclose( $fp );
307
308 return array(
309 'csv' => $csv,
310 'name' => $filename,
311 'string' => str_replace( $bom, '', $csv ),
312 );
313 }
314
315 /**
316 * Prepares an Excel file.
317 *
318 * @access private
319 * @param array $rows The array of data.
320 * @param string $filename The name of the file to use.
321 */
322 private function _getExcel( $rows, $filename ) {
323 // PHPExcel did not like sheet names longer than 31 characters and we will assume the same with PhpSpreadsheet
324 $chart = substr( $filename, 0, 30 );
325 $filename .= '.xlsx';
326 if ( ! apply_filters( 'vizualizer_export_include_series_type', true ) ) {
327 unset( $rows[1] );
328 $rows = array_values( $rows );
329 $rows = array_map(
330 function( $r ) {
331 return array_map( 'strval', $r );
332 },
333 $rows
334 );
335 }
336 $vendor_file = VISUALIZER_ABSPATH . '/vendor/autoload.php';
337 if ( is_readable( $vendor_file ) ) {
338 include_once( $vendor_file );
339 }
340 $xlsData = '';
341 if ( class_exists( 'PhpOffice\PhpSpreadsheet\Spreadsheet' ) ) {
342 $doc = new PhpOffice\PhpSpreadsheet\Spreadsheet();
343 $doc->getActiveSheet()->fromArray( $rows, null, 'A1' );
344 $doc->getActiveSheet()->setTitle( sanitize_title( $chart ) );
345 $doc = apply_filters( 'visualizer_excel_doc', $doc );
346 $writer = PhpOffice\PhpSpreadsheet\IOFactory::createWriter( $doc, 'Xlsx' );
347 ob_start();
348 $writer->save( 'php://output' );
349 $xlsData = ob_get_contents();
350 ob_end_clean();
351 } else {
352 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, 'Class PhpOffice\PhpSpreadsheet\Spreadsheet does not exist!', 'error', __FILE__, __LINE__ );
353 error_log( 'Class PhpOffice\PhpSpreadsheet\Spreadsheet does not exist!' );
354 }
355 return array(
356 'csv' => 'data:application/vnd.ms-excel;base64,' . base64_encode( $xlsData ),
357 'name' => $filename,
358 'raw' => base64_encode( $xlsData ),
359 );
360 }
361
362 /**
363 * Prepares an HTML table.
364 *
365 * @access private
366 * @param array $rows The array of data.
367 */
368 private function _getHTML( $rows ) {
369 $css = '
370 table.visualizer-print {
371 border-collapse: collapse;
372 }
373 table.visualizer-print, table.visualizer-print th, table.visualizer-print td {
374 border: 1px solid #000;
375 }
376 ';
377 $html = '';
378 $html .= '
379 <html>
380 <head>
381 <style>
382 ' . apply_filters( 'visualizer_print_css', $css ) . '
383 </style>
384 </head>
385 <body>';
386
387 $table = '<table class="visualizer-print">';
388 $index = 0;
389 foreach ( $rows as $row ) {
390 // skip the data type row.
391 if ( 1 === $index ) {
392 $index++;
393 continue;
394 }
395
396 $table .= '<tr>';
397 foreach ( $row as $col ) {
398 if ( $index === 0 ) {
399 $table .= '<th>' . $col . '</th>';
400 } else {
401 $table .= '<td>' . $col . '</td>';
402 }
403 }
404 $table .= '</tr>';
405 $index++;
406 }
407 $table .= '</table>';
408
409 $html .= apply_filters( 'visualizer_print_table', $table ) . '
410 </body>
411 </html>';
412 return array(
413 'csv' => $html,
414 );
415 }
416
417 /**
418 * Disable revisions temporarily for visualizer post type.
419 */
420 protected final function disableRevisionsTemporarily() {
421 add_filter(
422 'wp_revisions_to_keep', function( $num, $post ) {
423 if ( $post->post_type === Visualizer_Plugin::CPT_VISUALIZER ) {
424 return 0;
425 }
426 return $num;
427 }, 10, 2
428 );
429 }
430
431 /**
432 * Undo revisions for the chart, and if necessary, restore the earliest version.
433 *
434 * @return bool If any revisions were found.
435 */
436 public final function undoRevisions( $chart_id, $restore = false ) {
437 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'undoRevisions for %d with%s restore', $chart_id, ( $restore ? '' : 'out' ) ), 'debug', __FILE__, __LINE__ );
438 if ( get_post_type( $chart_id ) !== Visualizer_Plugin::CPT_VISUALIZER ) {
439 return false;
440 }
441 $revisions = wp_get_post_revisions( $chart_id, array( 'order' => 'ASC' ) );
442 if ( count( $revisions ) > 1 ) {
443 $revision_ids = array_keys( $revisions );
444
445 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'found %d revisions = %s', count( $revisions ), print_r( $revision_ids, true ) ), 'debug', __FILE__, __LINE__ );
446
447 // when we restore, a new revision is likely to be created. so, let's disable revisions for the time being.
448 $this->disableRevisionsTemporarily();
449
450 if ( $restore ) {
451 // restore to the oldest one i.e. the first one.
452 wp_restore_post_revision( array_shift( $revision_ids ) );
453 }
454
455 // delete all revisions.
456 foreach ( $revision_ids as $id ) {
457 wp_delete_post_revision( $id );
458 }
459
460 return true;
461 }
462 return false;
463 }
464
465 /**
466 * If existing revisions exist for the chart, restore the earliest version and then create a new revision to initiate editing.
467 */
468 public final function handleExistingRevisions( $chart_id, $chart ) {
469
470 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'handleExistingRevisions for %d', $chart_id ), 'debug', __FILE__, __LINE__ );
471 if ( get_post_type( $chart_id ) !== Visualizer_Plugin::CPT_VISUALIZER ) {
472 return $chart_id;
473 }
474 // undo revisions.
475 $revisions_found = $this->undoRevisions( $chart_id, true );
476
477 // create revision for the edit action.
478 wp_save_post_revision( $chart_id );
479
480 if ( $revisions_found ) {
481 // fetch chart data again in case it was updated by an earlier revision.
482 $chart = get_post( $chart_id );
483 }
484 return $chart;
485 }
486
487 /**
488 * Returns the language of the locale.
489 *
490 * @access protected
491 */
492 protected function get_language() {
493 $locale = get_locale();
494 if ( empty( $locale ) ) {
495 return '';
496 }
497 $array = explode( '_', $locale );
498 if ( count( $array ) < 2 ) {
499 return '';
500 }
501 return reset( $array );
502 }
503
504 /**
505 * Gets/creates the JS where user-specific customizations can be/have been added.
506 */
507 protected function get_user_customization_js() {
508 // use this as the JS file in case we are not able to create the file in uploads.
509 $default = VISUALIZER_ABSURL . 'js/customization.js';
510
511 $uploads = wp_get_upload_dir();
512 $specific = $uploads['baseurl'] . '/visualizer/customization.js';
513
514 // for testing on user sites (before we send them the correctly customized file).
515 if ( VISUALIZER_TEST_JS_CUSTOMIZATION ) {
516 return $default;
517 }
518
519 require_once( ABSPATH . 'wp-admin/includes/file.php' );
520 WP_Filesystem();
521 global $wp_filesystem;
522
523 $multisite_arg = '/';
524 if ( is_multisite() && ! is_main_site() ) {
525 $multisite_arg = '/sites/' . get_current_blog_id() . '/';
526 }
527
528 $dir = $wp_filesystem->wp_content_dir() . 'uploads' . $multisite_arg . 'visualizer';
529 $file = $wp_filesystem->wp_content_dir() . 'uploads' . $multisite_arg . 'visualizer/customization.js';
530
531 if ( $wp_filesystem->is_readable( $file ) ) {
532 return $specific;
533 }
534
535 if ( $wp_filesystem->exists( $file ) && ! $wp_filesystem->is_readable( $file ) ) {
536 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to read file %s', $file ), 'error', __FILE__, __LINE__ );
537 return $default;
538 }
539
540 if ( ! $wp_filesystem->exists( $dir ) ) {
541 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
542 if ( ( $done = $wp_filesystem->mkdir( $dir ) ) === false ) {
543 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to create directory %s', $dir ), 'error', __FILE__, __LINE__ );
544 return $default;
545 }
546 }
547
548 // if file does not exist, copy.
549 if ( ! $wp_filesystem->exists( $file ) ) {
550 $src = str_replace( ABSPATH, $wp_filesystem->abspath(), VISUALIZER_ABSPATH . '/js/customization.js' );
551 // phpcs:ignore WordPress.CodeAnalysis.AssignmentInCondition.Found
552 if ( ( $done = $wp_filesystem->copy( $src, $file ) ) === false ) {
553 do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'Unable to copy file %s to %s', $src, $file ), 'error', __FILE__, __LINE__ );
554 return $default;
555 }
556 }
557
558 return $specific;
559 }
560
561 /**
562 * Load the class for the given chart's chart type so that its assets can be loaded.
563 */
564 protected function load_chart_type( $chart_id ) {
565 $name = $this->load_chart_class_name( $chart_id );
566 $class = null;
567 if ( class_exists( $name ) || true === apply_filters( 'visualizer_load_chart', false, $name ) ) {
568 if ( 'Visualizer_Render_Sidebar_Type_DataTable_DataTable' === $name ) {
569 $name = 'Visualizer_Render_Sidebar_Type_DataTable_Tabular';
570 }
571 $class = new $name;
572 }
573
574 if ( is_null( $class ) && Visualizer_Module::is_pro() ) {
575 // lets see if this type exists in pro. New Lite(3.1.0+) & old Pro(1.8.0-).
576 $type = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_TYPE, true );
577 $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 ) ) );
578 }
579
580 return is_null( $class ) ? null : $class->getLibrary();
581 }
582
583 /**
584 * Returns the class name for the given chart's chart type.
585 */
586 protected function load_chart_class_name( $chart_id ) {
587 $type = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_TYPE, true );
588 $lib = get_post_meta( $chart_id, Visualizer_Plugin::CF_CHART_LIBRARY, true );
589
590 // backward compatibility.
591 if ( empty( $lib ) ) {
592 $lib = 'GoogleCharts';
593 if ( 'dataTable' === $type ) {
594 $lib = 'DataTable';
595 }
596 }
597 $name = 'Visualizer_Render_Sidebar_Type_' . $lib . '_' . ucwords( $type );
598 return $name;
599 }
600
601 /**
602 * Generates the inline CSS to apply to the chart and adds these classes to the settings.
603 *
604 * @access public
605 * @param int $id The id of the chart.
606 * @param array $settings The settings of the chart.
607 */
608 protected function get_inline_custom_css( $id, $settings ) {
609 $css = '';
610
611 $classes = array();
612 $css = '<style type="text/css" name="visualizer-custom-css" id="customcss-' . $id . '">';
613 if ( ! empty( $settings['customcss'] ) ) {
614 foreach ( $settings['customcss'] as $name => $element ) {
615 $attributes = array();
616 foreach ( $element as $property => $value ) {
617 $attributes[] = $this->handle_css_property( $property, $value );
618 }
619 $class_name = $id . $name;
620 $properties = implode( ' !important; ', array_filter( $attributes ) );
621 if ( ! empty( $properties ) ) {
622 $css .= '.' . $class_name . ' {' . $properties . ' !important;}';
623 $classes[ $name ] = $class_name;
624 }
625 }
626 $settings['cssClassNames'] = $classes;
627 }
628
629 $img_path = VISUALIZER_ABSURL . 'images';
630 $css .= ".locker,.locker-loader{position:absolute;top:0;left:0;width:100%;height:100%}.locker{z-index:1000;opacity:.8;background-color:#fff;-ms-filter:\"progid:DXImageTransform.Microsoft.Alpha(Opacity=80)\";filter:alpha(opacity=80)}.locker-loader{z-index:1001;background:url($img_path/ajax-loader.gif) no-repeat center center}.dt-button{display:none!important}.visualizer-front-container.visualizer-lazy-render{content-visibility: auto;}.google-visualization-controls-categoryfilter label.google-visualization-controls-label {vertical-align: middle;}.google-visualization-controls-categoryfilter li.goog-inline-block {margin: 0 0.2em;}.google-visualization-controls-categoryfilter li {padding: 0 0.2em;}";
631 $css .= '</style>';
632
633 $arguments = array( $css, $settings );
634 apply_filters_ref_array( 'visualizer_inline_css', array( &$arguments ) );
635
636 return $arguments;
637 }
638
639 /**
640 * Handles CSS properties that might need special syntax.
641 *
642 * @access private
643 * @param string $property The name of the css property.
644 * @param string $value The value of the css property.
645 */
646 private function handle_css_property( $property, $value ) {
647 if ( empty( $property ) || empty( $value ) ) {
648 return '';
649 }
650
651 switch ( $property ) {
652 case 'transform':
653 $value = 'rotate(' . $value . 'deg)';
654 break;
655 }
656 return $property . ': ' . $value;
657 }
658
659 /**
660 * Determines if charts have been created of the particular chart type.
661 */
662 protected static function hasChartType( $type ) {
663 $args = array(
664 'post_type' => Visualizer_Plugin::CPT_VISUALIZER,
665 'fields' => 'ids',
666 'post_status' => 'publish',
667 'meta_query' => array(
668 array(
669 'key' => Visualizer_Plugin::CF_CHART_TYPE,
670 'value' => $type,
671 ),
672 ),
673 );
674
675 $q = new WP_Query( $args );
676 return $q->found_posts > 0;
677 }
678
679 /**
680 * Determines how many charts have been created.
681 */
682 protected static function numberOfCharts() {
683 $args = array(
684 'post_type' => Visualizer_Plugin::CPT_VISUALIZER,
685 'fields' => 'ids',
686 'post_status' => 'publish',
687 'posts_per_page' => 300,
688 );
689
690 $q = new WP_Query( $args );
691 return $q->found_posts;
692 }
693
694 /**
695 * Checks if the PRO version is active.
696 *
697 * @since 3.3.0
698 */
699 public static function is_pro() {
700 // versions of pro before 1.9.0 will use the constant VISUALIZER_PRO
701 // versions of pro 1.9.0 onwards will use the filter
702 return apply_filters( 'visualizer_is_pro', VISUALIZER_PRO );
703 }
704
705 /**
706 * Checks if the PRO version is older than a particular version.
707 *
708 * @since 3.3.0
709 */
710 public static function is_pro_older_than( $version ) {
711 return version_compare( VISUALIZER_PRO_VERSION, $version, '<' );
712 }
713
714 /**
715 * Should we show some specific feature on the basis of the version?
716 *
717 * @since 3.4.0
718 */
719 public static function can_show_feature( $feature ) {
720 switch ( $feature ) {
721 case 'simple-editor':
722 // if user has pro but an older version, then don't load the simple editor functionality
723 // as the select box will not behave as expected because the pro editor's functionality will supercede.
724 return ! Visualizer_Module::is_pro() || ! Visualizer_Module::is_pro_older_than( '1.9.2' );
725 }
726 return false;
727 }
728
729 /**
730 * Gets the features for the provided license type.
731 */
732 public static final function get_features_for_license( $plan ) {
733 switch ( $plan ) {
734 case 1:
735 return array( 'import-wp', 'db-query' );
736 case 2:
737 return array( 'schedule-chart', 'chart-permissions' );
738 }
739 }
740
741 /**
742 * Gets the chart content after common manipulations.
743 */
744 public static function get_chart_data( $chart, $type, $run_filter = true ) {
745 // change HTML entities
746 $post_content = html_entity_decode( htmlentities( $chart->post_content ) );
747 $post_content = preg_replace_callback(
748 '!s:(\d+):"(.*?)";!s',
749 function ( $matches ) {
750 if ( isset( $matches[2] ) ) {
751 return 's:' . strlen( $matches[2] ) . ':"' . $matches[2] . '";';
752 }
753 },
754 $post_content
755 );
756 $data = unserialize( $post_content );
757 $altered = array();
758 if ( ! empty( $data ) ) {
759 foreach ( $data as $index => $array ) {
760 if ( ! is_array( $index ) && is_array( $array ) ) {
761 foreach ( $array as &$datum ) {
762 if ( is_string( $datum ) ) {
763 $datum = stripslashes( $datum );
764 }
765 }
766 $altered[ $index ] = $array;
767 }
768 }
769 }
770 // if something goes wrong and the end result is empty, be safe and use the original data
771 if ( empty( $altered ) ) {
772 $altered = $data;
773 }
774 if ( $run_filter ) {
775 return apply_filters( Visualizer_Plugin::FILTER_GET_CHART_DATA, $altered, $chart->ID, $type );
776 }
777 return $altered;
778 }
779
780 /**
781 * Get chart image.
782 *
783 * @param object $chart Chart data.
784 * @return string
785 */
786 public function _getImage( $chart = null ) {
787 $image = '';
788 if ( $chart ) {
789 $chart_image = get_post_meta( $chart->ID, Visualizer_Plugin::CF_CHART_IMAGE, true );
790 if ( ! empty( $chart_image ) ) {
791 $image = wp_get_attachment_image( $chart_image, 'full' );
792 }
793 }
794 return array(
795 'csv' => $image,
796 );
797 }
798
799 /**
800 * Filter chart title if visualizer post type.
801 *
802 * @param object $query WP Query object.
803 * @return void
804 */
805 public function PreGetPosts( $query ) {
806 if ( ! $query->is_main_query() ) {
807 $post_type = $query->get( 'post_type' );
808 if ( 'visualizer' === $post_type ) {
809 $this->_addFilter( Visualizer_Plugin::FILTER_CHART_TITLE, 'filterChartTitle', 10, 2 );
810 }
811 }
812 }
813
814 /**
815 * Filter chart title.
816 *
817 * @access public
818 * @param string $post_title Post title.
819 * @param int $post_id Post ID.
820 * @return string
821 */
822 public function filterChartTitle( $post_title, $post_id ) {
823 $post_type = get_post_type( $post_id );
824 $post_title = trim( $post_title );
825 if ( 'visualizer' === $post_type && 'Visualization' === $post_title ) {
826 return sprintf( '%s #%d', $post_title, $post_id );
827 }
828 return $post_title;
829 }
830 }
831