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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Symbiote\QueuedJobs\Extensions;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Forms\CheckboxField;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Forms\FieldList;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\ORM\DataExtension;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\SiteConfig\SiteConfig;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symbiote\QueuedJobs\Services\QueuedJobService;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class MaintenanceLockExtension  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Adds a maintenance lock UI to SiteConfig  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @property SiteConfig|$this owner  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package Symbiote\QueuedJobs\Extensions  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                class MaintenanceLockExtension extends DataExtension  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param FieldList $fields  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function updateCMSFields($fields)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!QueuedJobService::config()->get('lock_file_enabled')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $fields->addFieldsToTab('Root.QueueSettings', [ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $lockField = CheckboxField::create(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'MaintenanceLockEnabled',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'Maintenance Lock Enabled',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                QueuedJobService::isMaintenanceLockActive()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $lockField->setDescription('Enable maintenance lock to prevent new queued jobs from being started'); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param bool $value  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function saveMaintenanceLockEnabled($value)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!QueuedJobService::config()->get('lock_file_enabled')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($value && !QueuedJobService::isMaintenanceLockActive()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            QueuedJobService::enableMaintenanceLock();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!$value && QueuedJobService::isMaintenanceLockActive()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            QueuedJobService::disableMaintenanceLock();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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