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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace App\Console\Commands;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Console\Command;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Support\Facades\DB;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use App\Models\Institution_student;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class RemoveDuplications extends Command  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * The name and signature of the console command.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $signature = 'student:clean {chunk} {max}'; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * The console command description.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $description = 'This command is to clean students data';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Create a new command instance.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        parent::__construct();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Execute the console command.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return mixed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function handle()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->start_time = microtime(TRUE);  | 
            
                            
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                            $this->output = new \Symfony\Component\Console\Output\ConsoleOutput();  | 
            
                            
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                            $this->output->writeln('############### Starting delete Duplication ################'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $duplicatedStudents = Institution_student::select(DB::raw('count(*) as total'),'student_id','id','academic_period_id','education_grade_id') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->groupBy('student_id') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->having('total','>',1) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->orderBy('student_id') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->get()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->toArray();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if(count($duplicatedStudents)>0){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                processParallel(array($this,'process'),$duplicatedStudents,10);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }else{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->output->writeln('Nothing to Process, all are clean'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } catch (\Throwable $th) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            dd($th);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    public function process($Student){ | 
            
            
                                                                        
                            
            
                                    
            
            
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                        Institution_student::where('institution_students.id','>',$Student['id']) | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ->where('institution_students.student_id',$Student['student_id']) | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ->where('institution_students.academic_period_id',$Student['academic_period_id']) | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ->where('institution_students.education_grade_id',$Student['education_grade_id']) | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ->delete();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->end_time = microtime(TRUE);      | 
            
                            
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                        $this->output->writeln('The cook took ' . ($this->end_time - $this->start_time) . ' seconds to complete'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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