Give_Background_Updater::has_queue() - Code Metrics - Inspection of "Merge pull request #2814 from WordImpress/release/..." - WordImpress/Give - Measure and Improve Code Quality continuously with Scrutinizer

Test Failed

Push — master ( 8507a0...6a6b19 )

by Devin

created 2018-02-15 00:35 UTC

Give_Background_Updater::has_queue() A

↳ Parent: Give_Background_Updater

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	2
nc	1
nop	0
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php
/**
 * Background Updater
 *
 * Uses https://github.com/A5hleyRich/wp-background-processing to handle DB
 * updates in the background.
 *
 * @class    Give_Background_Updater
 * @version  2.0.0
 * @package  Give/Classes
 * @category Class
 * @author   WordImpress
 */
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Give_Background_Updater Class.
 */
class Give_Background_Updater extends WP_Background_Process {

	/**
	 * @var string
	 */
	protected $action = 'give_db_updater';

	/**
	 * Dispatch updater.
	 *
	 * Updater will still run via cron job if this fails for any reason.
	 */
	public function dispatch() {
		/* @var WP_Background_Process $dispatched */
		parent::dispatch();
	}


	/**
	 * Get all batches.
	 *
	 * @since  2.0
	 * @access public
	 * @return stdClass
	 */
	public function get_all_batch() {
		return parent::get_batch();
class Daddy
{
    protected function getFirstName()
    {
        return "Eidur";
    }

    protected function getSurName()
    {
        return "Gudjohnsen";
    }
}

class Son
{
    public function getFirstName()
    {
        return parent::getSurname();
    }
}
	}

	/**
	 * Is queue empty
	 *
	 * @since 2.0.3
	 *
	 * @return bool
	 */
	public function has_queue() {
		return ( ! parent::is_queue_empty() );
class Daddy
{
    protected function getFirstName()
    {
        return "Eidur";
    }

    protected function getSurName()
    {
        return "Gudjohnsen";
    }
}

class Son
{
    public function getFirstName()
    {
        return parent::getSurname();
    }
}
	}


	/**
	 * Lock process
	 *
	 * Lock the process so that multiple instances can't run simultaneously.
	 * Override if applicable, but the duration should be greater than that
	 * defined in the time_exceeded() method.
	 *
	 *
	 * @since 2.0.3
	 */
	protected function lock_process() {
		// Check if admin want to pause upgrade.
		if( get_option('give_pause_upgrade') ) {

			self::flush_cache();

			delete_option( 'give_paused_batches' );

			Give_Updates::get_instance()->__pause_db_update( true );

			delete_option('give_pause_upgrade');


			/**
			 * Fire action when pause db updates
			 *
			 * @since 2.0.1
			 */
			do_action( 'give_pause_db_upgrade', Give_Updates::get_instance() );

			wp_die();
		}



		$this->start_time = time(); // Set start time of current process.

		$lock_duration = ( property_exists( $this, 'queue_lock_time' ) ) ? $this->queue_lock_time : 60; // 1 minute
		$lock_duration = apply_filters( $this->identifier . '_queue_lock_time', $lock_duration );

		set_site_transient( $this->identifier . '_process_lock', microtime(), $lock_duration );
	}

	/**
	 * Handle cron healthcheck
	 *
	 * Restart the background process if not already running
	 * and data exists in the queue.
	 */
	public function handle_cron_healthcheck() {
		if ( $this->is_process_running() || $this->is_paused_process()  ) {
			// Background process already running.
			return;
		}

		if ( $this->is_queue_empty() ) {
			// No data to process.
			$this->clear_scheduled_event();

			return;
		}

		$this->handle();
	}

	/**
	 * Schedule fallback event.
	 */
	protected function schedule_event() {
		if ( ! wp_next_scheduled( $this->cron_hook_identifier ) && ! $this->is_paused_process() ) {
			wp_schedule_event( time() + 10, $this->cron_interval_identifier, $this->cron_hook_identifier );
		}
	}

	/**
	 * Task
	 *
	 * Override this method to perform any actions required on each
	 * queue item. Return the modified item for further processing
	 * in the next pass through. Or, return false to remove the
	 * item from the queue.
	 *
	 * @param array $update Update info
	 *
	 * @return mixed
	 */
	protected function task( $update ) {
		// Pause upgrade immediately if admin pausing upgrades.
		if( $this->is_paused_process() ) {

			wp_die();
		}

		if ( empty( $update ) ) {
			return false;
		}

		// Delete cache.
		self::flush_cache();

		/* @var  Give_Updates $give_updates */
		$give_updates  = Give_Updates::get_instance();
		$resume_update = get_option(
			'give_doing_upgrade',


			// Default update.
			array(
				'update_info'      => $update,
				'step'             => 1,
				'update'           => 1,
				'heading'          => sprintf( 'Update %s of {update_count}', 1 ),
				'percentage'       => $give_updates->percentage,
				'total_percentage' => 0,
			)
		);

		// Continuously skip update if previous update does not complete yet.
		if (
			$resume_update['update_info']['id'] !== $update['id'] &&
			! give_has_upgrade_completed( $resume_update['update_info']['id'] )
		) {
			return $update;
		}

		// Set params.
		$resume_update['update_info'] = $update;
		$give_updates->step           = absint( $resume_update['step'] );
		$give_updates->update         = absint( $resume_update['update'] );
		$is_parent_update_completed   = $give_updates->is_parent_updates_completed( $update );



		// Skip update if dependency update does not complete yet.
		if ( empty( $is_parent_update_completed ) ) {
			// @todo: set error when you have only one update with invalid dependency
			if ( ! is_null( $is_parent_update_completed ) ) {
				return $update;
			}

			return false;
		}



		// Pause upgrade immediately if found following:
		// 1. Running update number greater then total update count
		// 2. Processing percentage greater then 100%
		if( (

			101 < $resume_update['total_percentage'] ) ||
		    ( $give_updates->get_total_db_update_count() < $resume_update['update'] ) ||
		    ! in_array( $resume_update['update_info']['id'], $give_updates->get_update_ids() )
		) {
			if( ! $this->is_paused_process() ){

				$give_updates->__pause_db_update(true);

			}

			update_option( 'give_upgrade_error', 1 );

			$log_data = 'Update Task' . "\n";
			$log_data .= "Total update count: {$give_updates->get_total_db_update_count()}\n";
			$log_data .= 'Update IDs: ' . print_r( $give_updates->get_update_ids() , true );

			$log_data .= 'Update: ' . print_r( $resume_update , true );


			Give()->logs->add( 'Update Error', $log_data, 0, 'update' );

			wp_die();
		}

		// Disable cache.
		Give_Cache::disable();

		try{
			// Run update.
			if ( is_array( $update['callback'] ) ) {
				$update['callback'][0]->$update['callback'][1]();
			} else {
				$update['callback']();
			}
		} catch ( Exception $e ){

			if( ! $this->is_paused_process() ){

				$give_updates->__pause_db_update(true);

			}

			$log_data = 'Update Task' . "\n";
			$log_data .= print_r( $resume_update, true ) . "\n\n";

			$log_data .= "Error\n {$e->getMessage()}";

			Give()->logs->add( 'Update Error', $log_data, 0, 'update' );
			update_option( 'give_upgrade_error', 1 );

			wp_die();
		}

		// Set update info.
		$doing_upgrade_args = array(
			'update_info'      => $update,
			'step'             => ++ $give_updates->step,
			'update'           => $give_updates->update,
			'heading'          => sprintf( 'Update %s of %s', $give_updates->update, get_option( 'give_db_update_count' ) ),
			'percentage'       => $give_updates->percentage,
			'total_percentage' => $give_updates->get_db_update_processing_percentage(),
		);

		// Cache upgrade.
		update_option( 'give_doing_upgrade', $doing_upgrade_args );

		// Enable cache.
		Give_Cache::enable();

		// Check if current update completed or not.
		if ( give_has_upgrade_completed( $update['id'] ) ) {
			return false;
		}

		return $update;
	}

	/**
	 * Complete
	 *
	 * Override if applicable, but ensure that the below actions are
	 * performed, or, call parent::complete().
	 */
	public function complete() {
		if ( $this->is_paused_process() ) {
			return false;
		}

		parent::complete();

		delete_option( 'give_pause_upgrade' );
		delete_option( 'give_upgrade_error' );
		delete_option( 'give_db_update_count' );
		delete_option( 'give_doing_upgrade' );
		add_option( 'give_show_db_upgrade_complete_notice', 1, '', 'no' );

		// Flush cache.
		Give_Cache::get_instance()->flush_cache();

		if ( $cache_keys = Give_Cache::get_options_like( '' ) ) {
			Give_Cache::delete( $cache_keys );
		}
	}

	/**
	 * Get memory limit
	 *
	 * @return int
	 */
	protected function get_memory_limit() {
		if ( function_exists( 'ini_get' ) ) {
			$memory_limit = ini_get( 'memory_limit' );
		} else {
			// Sensible default.
			$memory_limit = '128M';
		}

		if ( ! $memory_limit || '-1' === $memory_limit ) {
			// Unlimited, set to 32GB.
			$memory_limit = '32000M';
		}

		return intval( $memory_limit ) * 1024 * 1024;
	}

	/**
	 * Maybe process queue
	 *
	 * Checks whether data exists within the queue and that
	 * the process is not already running.
	 */
	public function maybe_handle() {
		// Don't lock up other requests while processing
		session_write_close();


		if ( $this->is_process_running() || $this->is_paused_process() ) {
			// Background process already running.
			wp_die();
		}

		if ( $this->is_queue_empty() ) {
			// No data to process.
			wp_die();
		}

		check_ajax_referer( $this->identifier, 'nonce' );

		$this->handle();

		wp_die();
	}


	/**
	 * Check if backgound upgrade paused or not.
	 *
	 * @since 2.0
	 * @access public
	 * @return bool
	 */
	public function is_paused_process(){
		// Delete cache.
		wp_cache_delete( 'give_paused_batches', 'options' );

		$paused_batches = get_option('give_paused_batches');


		return ! empty( $paused_batches );
	}


	/**
	 * Get identifier
	 *
	 * @since  2.0
	 * @access public
	 * @return mixed|string
	 */
	public function get_identifier() {
		return $this->identifier;
	}

	/**
	 * Get cron identifier
	 *
	 * @since  2.0
	 * @access public
	 * @return mixed|string
	 */
	public function get_cron_identifier() {
		return $this->cron_hook_identifier;
	}


	/**
	 * Flush background update related cache to prevent task to go to stalled state.
	 *
	 * @since 2.0.3
	 */
	public static function flush_cache() {

		$options = array(
			'give_completed_upgrades',
			'give_doing_upgrade',
			'give_paused_batches',
			'give_upgrade_error',
			'give_db_update_count',
			'give_doing_upgrade',
			'give_pause_upgrade',
			'give_show_db_upgrade_complete_notice',
		);



		foreach ( $options as $option ) {
			wp_cache_delete( $option, 'options' );
		}
	}
}


1			<?php
2			/**
3			* Background Updater
4			*
5			* Uses https://github.com/A5hleyRich/wp-background-processing to handle DB
6			* updates in the background.
7			*
8			* @class Give_Background_Updater
9			* @version 2.0.0
10			* @package Give/Classes
11			* @category Class
12			* @author WordImpress
13			*/
14			if ( ! defined( 'ABSPATH' ) ) {
15			exit;
16			}
17
18			/**
19			* Give_Background_Updater Class.
20			*/
21			class Give_Background_Updater extends WP_Background_Process {
22
23			/**
24			* @var string
25			*/
26			protected $action = 'give_db_updater';
27
28			/**
29			* Dispatch updater.
30			*
31			* Updater will still run via cron job if this fails for any reason.
32			*/
33			public function dispatch() {
34			/* @var WP_Background_Process $dispatched */
35			parent::dispatch();
36			}
37
38
39			/**
40			* Get all batches.
41			*
42			* @since 2.0
43			* @access public
44			* @return stdClass
45			*/
46			public function get_all_batch() {
47			return parent::get_batch();
			0 ignored issues – show Comprehensibility Bug introduced 2018-01-19 07:31 UTC by Report Bug Copy Issue Report It seems like you call parent on a different method (`get_batch()` instead of `get_all_batch()`). Are you sure this is correct? If so, you might want to change this to `$this->get_batch()`. This check looks for a call to a parent method whose name is different than the method from which it is called. Consider the following code: class Daddy { protected function getFirstName() { return "Eidur"; } protected function getSurName() { return "Gudjohnsen"; } } class Son { public function getFirstName() { return parent::getSurname(); } } The `getFirstName()` method in the `Son` calls the wrong method in the parent class. Loading history...
48			}
49
50			/**
51			* Is queue empty
52			*
53			* @since 2.0.3
54			*
55			* @return bool
56			*/
57			public function has_queue() {
58			return ( ! parent::is_queue_empty() );
			0 ignored issues – show Comprehensibility Bug introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report It seems like you call parent on a different method (`is_queue_empty()` instead of `has_queue()`). Are you sure this is correct? If so, you might want to change this to `$this->is_queue_empty()`. This check looks for a call to a parent method whose name is different than the method from which it is called. Consider the following code: class Daddy { protected function getFirstName() { return "Eidur"; } protected function getSurName() { return "Gudjohnsen"; } } class Son { public function getFirstName() { return parent::getSurname(); } } The `getFirstName()` method in the `Son` calls the wrong method in the parent class. Loading history...
59			}
60
61
62			/**
63			* Lock process
64			*
65			* Lock the process so that multiple instances can't run simultaneously.
66			* Override if applicable, but the duration should be greater than that
67			* defined in the time_exceeded() method.
68			*
69			*
70			* @since 2.0.3
71			*/
72			protected function lock_process() {
73			// Check if admin want to pause upgrade.
74			if( get_option('give_pause_upgrade') ) {
			0 ignored issues – show introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Space after opening control structure is required Loading history... introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report No space before opening parenthesis is prohibited Loading history... Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces after opening bracket; 0 found Loading history... Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces before closing bracket; 0 found Loading history...
75			self::flush_cache();
76
77			delete_option( 'give_paused_batches' );
78
79			Give_Updates::get_instance()->__pause_db_update( true );
80
81			delete_option('give_pause_upgrade');
			0 ignored issues – show Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces after opening bracket; 0 found Loading history... Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces before closing bracket; 0 found Loading history...
82
83			/**
84			* Fire action when pause db updates
85			*
86			* @since 2.0.1
87			*/
88			do_action( 'give_pause_db_upgrade', Give_Updates::get_instance() );
89
90			wp_die();
91			}
92
			0 ignored issues – show Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Functions must not contain multiple empty lines in a row; found 2 empty lines Loading history...
93
94			$this->start_time = time(); // Set start time of current process.
95
96			$lock_duration = ( property_exists( $this, 'queue_lock_time' ) ) ? $this->queue_lock_time : 60; // 1 minute
97			$lock_duration = apply_filters( $this->identifier . '_queue_lock_time', $lock_duration );
98
99			set_site_transient( $this->identifier . '_process_lock', microtime(), $lock_duration );
100			}
101
102			/**
103			* Handle cron healthcheck
104			*
105			* Restart the background process if not already running
106			* and data exists in the queue.
107			*/
108			public function handle_cron_healthcheck() {
109			if ( $this->is_process_running() \|\| $this->is_paused_process() ) {
110			// Background process already running.
111			return;
112			}
113
114			if ( $this->is_queue_empty() ) {
115			// No data to process.
116			$this->clear_scheduled_event();
117
118			return;
119			}
120
121			$this->handle();
122			}
123
124			/**
125			* Schedule fallback event.
126			*/
127			protected function schedule_event() {
128			if ( ! wp_next_scheduled( $this->cron_hook_identifier ) && ! $this->is_paused_process() ) {
129			wp_schedule_event( time() + 10, $this->cron_interval_identifier, $this->cron_hook_identifier );
130			}
131			}
132
133			/**
134			* Task
135			*
136			* Override this method to perform any actions required on each
137			* queue item. Return the modified item for further processing
138			* in the next pass through. Or, return false to remove the
139			* item from the queue.
140			*
141			* @param array $update Update info
142			*
143			* @return mixed
144			*/
145			protected function task( $update ) {
146			// Pause upgrade immediately if admin pausing upgrades.
147			if( $this->is_paused_process() ) {
			0 ignored issues – show introduced 2018-01-25 07:12 UTC by Report Bug Copy Issue Report Space after opening control structure is required Loading history... introduced 2018-01-25 07:12 UTC by Report Bug Copy Issue Report No space before opening parenthesis is prohibited Loading history...
148			wp_die();
149			}
150
151			if ( empty( $update ) ) {
152			return false;
153			}
154
155			// Delete cache.
156			self::flush_cache();
157
158			/* @var Give_Updates $give_updates */
159			$give_updates = Give_Updates::get_instance();
160			$resume_update = get_option(
161			'give_doing_upgrade',
162
			0 ignored issues – show Coding Style introduced 2018-01-17 19:08 UTC by Report Bug Copy Issue Report There should be no empty lines in a multi-line function call. Loading history...
163			// Default update.
164			array(
165			'update_info' => $update,
166			'step' => 1,
167			'update' => 1,
168			'heading' => sprintf( 'Update %s of {update_count}', 1 ),
169			'percentage' => $give_updates->percentage,
170			'total_percentage' => 0,
171			)
172			);
173
174			// Continuously skip update if previous update does not complete yet.
175			if (
176			$resume_update['update_info']['id'] !== $update['id'] &&
177			! give_has_upgrade_completed( $resume_update['update_info']['id'] )
178			) {
179			return $update;
180			}
181
182			// Set params.
183			$resume_update['update_info'] = $update;
184			$give_updates->step = absint( $resume_update['step'] );
185			$give_updates->update = absint( $resume_update['update'] );
186			$is_parent_update_completed = $give_updates->is_parent_updates_completed( $update );
187
			0 ignored issues – show Coding Style introduced 2018-01-19 07:32 UTC by Report Bug Copy Issue Report Functions must not contain multiple empty lines in a row; found 2 empty lines Loading history...
188
189			// Skip update if dependency update does not complete yet.
190			if ( empty( $is_parent_update_completed ) ) {
191			// @todo: set error when you have only one update with invalid dependency
192			if ( ! is_null( $is_parent_update_completed ) ) {
193			return $update;
194			}
195
196			return false;
197			}
198
			0 ignored issues – show Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Functions must not contain multiple empty lines in a row; found 2 empty lines Loading history...
199
200			// Pause upgrade immediately if found following:
201			// 1. Running update number greater then total update count
202			// 2. Processing percentage greater then 100%
203			if( (
			0 ignored issues – show introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Space after opening control structure is required Loading history... introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report No space before opening parenthesis is prohibited Loading history...
204			101 < $resume_update['total_percentage'] ) \|\|
205			( $give_updates->get_total_db_update_count() < $resume_update['update'] ) \|\|
206			! in_array( $resume_update['update_info']['id'], $give_updates->get_update_ids() )
207			) {
208			if( ! $this->is_paused_process() ){
			0 ignored issues – show introduced 2018-01-25 07:12 UTC by Report Bug Copy Issue Report Space after opening control structure is required Loading history... introduced 2018-01-25 07:12 UTC by Report Bug Copy Issue Report No space before opening parenthesis is prohibited Loading history...
209			$give_updates->__pause_db_update(true);
			0 ignored issues – show Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces after opening bracket; 0 found Loading history... Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces before closing bracket; 0 found Loading history...
210			}
211
212			update_option( 'give_upgrade_error', 1 );
213
214			$log_data = 'Update Task' . "\n";
215			$log_data .= "Total update count: {$give_updates->get_total_db_update_count()}\n";
216			$log_data .= 'Update IDs: ' . print_r( $give_updates->get_update_ids() , true );
			0 ignored issues – show introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report The use of function print_r() is discouraged Loading history...
217			$log_data .= 'Update: ' . print_r( $resume_update , true );
			0 ignored issues – show introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report The use of function print_r() is discouraged Loading history...
218
219			Give()->logs->add( 'Update Error', $log_data, 0, 'update' );
220
221			wp_die();
222			}
223
224			// Disable cache.
225			Give_Cache::disable();
226
227			try{
228			// Run update.
229			if ( is_array( $update['callback'] ) ) {
230			$update['callback'][0]->$update['callback'][1]();
231			} else {
232			$update['callback']();
233			}
234			} catch ( Exception $e ){
235
236			if( ! $this->is_paused_process() ){
			0 ignored issues – show introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Space after opening control structure is required Loading history... introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report No space before opening parenthesis is prohibited Loading history...
237			$give_updates->__pause_db_update(true);
			0 ignored issues – show Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces after opening bracket; 0 found Loading history... Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces before closing bracket; 0 found Loading history...
238			}
239
240			$log_data = 'Update Task' . "\n";
241			$log_data .= print_r( $resume_update, true ) . "\n\n";
			0 ignored issues – show introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report The use of function print_r() is discouraged Loading history...
242			$log_data .= "Error\n {$e->getMessage()}";
243
244			Give()->logs->add( 'Update Error', $log_data, 0, 'update' );
245			update_option( 'give_upgrade_error', 1 );
246
247			wp_die();
248			}
249
250			// Set update info.
251			$doing_upgrade_args = array(
252			'update_info' => $update,
253			'step' => ++ $give_updates->step,
254			'update' => $give_updates->update,
255			'heading' => sprintf( 'Update %s of %s', $give_updates->update, get_option( 'give_db_update_count' ) ),
256			'percentage' => $give_updates->percentage,
257			'total_percentage' => $give_updates->get_db_update_processing_percentage(),
258			);
259
260			// Cache upgrade.
261			update_option( 'give_doing_upgrade', $doing_upgrade_args );
262
263			// Enable cache.
264			Give_Cache::enable();
265
266			// Check if current update completed or not.
267			if ( give_has_upgrade_completed( $update['id'] ) ) {
268			return false;
269			}
270
271			return $update;
272			}
273
274			/**
275			* Complete
276			*
277			* Override if applicable, but ensure that the below actions are
278			* performed, or, call parent::complete().
279			*/
280			public function complete() {
281			if ( $this->is_paused_process() ) {
282			return false;
283			}
284
285			parent::complete();
286
287			delete_option( 'give_pause_upgrade' );
288			delete_option( 'give_upgrade_error' );
289			delete_option( 'give_db_update_count' );
290			delete_option( 'give_doing_upgrade' );
291			add_option( 'give_show_db_upgrade_complete_notice', 1, '', 'no' );
292
293			// Flush cache.
294			Give_Cache::get_instance()->flush_cache();
295
296			if ( $cache_keys = Give_Cache::get_options_like( '' ) ) {
297			Give_Cache::delete( $cache_keys );
298			}
299			}
300
301			/**
302			* Get memory limit
303			*
304			* @return int
305			*/
306			protected function get_memory_limit() {
307			if ( function_exists( 'ini_get' ) ) {
308			$memory_limit = ini_get( 'memory_limit' );
309			} else {
310			// Sensible default.
311			$memory_limit = '128M';
312			}
313
314			if ( ! $memory_limit \|\| '-1' === $memory_limit ) {
315			// Unlimited, set to 32GB.
316			$memory_limit = '32000M';
317			}
318
319			return intval( $memory_limit ) * 1024 * 1024;
320			}
321
322			/**
323			* Maybe process queue
324			*
325			* Checks whether data exists within the queue and that
326			* the process is not already running.
327			*/
328			public function maybe_handle() {
329			// Don't lock up other requests while processing
330			session_write_close();
			0 ignored issues – show introduced 2018-01-25 07:12 UTC by Report Bug Copy Issue Report The use of PHP session function session_write_close() is prohibited. Loading history...
331
332			if ( $this->is_process_running() \|\| $this->is_paused_process() ) {
333			// Background process already running.
334			wp_die();
335			}
336
337			if ( $this->is_queue_empty() ) {
338			// No data to process.
339			wp_die();
340			}
341
342			check_ajax_referer( $this->identifier, 'nonce' );
343
344			$this->handle();
345
346			wp_die();
347			}
348
349
350			/**
351			* Check if backgound upgrade paused or not.
352			*
353			* @since 2.0
354			* @access public
355			* @return bool
356			*/
357			public function is_paused_process(){
358			// Delete cache.
359			wp_cache_delete( 'give_paused_batches', 'options' );
360
361			$paused_batches = get_option('give_paused_batches');
			0 ignored issues – show Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces after opening bracket; 0 found Loading history... Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Expected 1 spaces before closing bracket; 0 found Loading history...
362
363			return ! empty( $paused_batches );
364			}
365
366
367			/**
368			* Get identifier
369			*
370			* @since 2.0
371			* @access public
372			* @return mixed\|string
373			*/
374			public function get_identifier() {
375			return $this->identifier;
376			}
377
378			/**
379			* Get cron identifier
380			*
381			* @since 2.0
382			* @access public
383			* @return mixed\|string
384			*/
385			public function get_cron_identifier() {
386			return $this->cron_hook_identifier;
387			}
388
389
390			/**
391			* Flush background update related cache to prevent task to go to stalled state.
392			*
393			* @since 2.0.3
394			*/
395			public static function flush_cache() {
396
397			$options = array(
398			'give_completed_upgrades',
399			'give_doing_upgrade',
400			'give_paused_batches',
401			'give_upgrade_error',
402			'give_db_update_count',
403			'give_doing_upgrade',
404			'give_pause_upgrade',
405			'give_show_db_upgrade_complete_notice',
406			);
407
			0 ignored issues – show Coding Style introduced 2018-02-15 00:34 UTC by Report Bug Copy Issue Report Functions must not contain multiple empty lines in a row; found 2 empty lines Loading history...
408
409			foreach ( $options as $option ) {
410			wp_cache_delete( $option, 'options' );
411			}
412			}
413			}
414

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