public function exportPdf($ids = null) { $ids = explode(',', substr($ids, 0, -1)); $ids = array_unique($ids); $model = Level::whereIn('id', $ids)->where('user_id', \Auth::user()->id)->get(['id', 'niveau']); Excel::create('Niveaux', function ($excel) use($model, $ids) { $excel->sheet('Niveaux', function ($sheet) use($model, $ids) { foreach ($model as $level) { $level->nbr = $level->children()->count(); unset($level->id); } $sheet->fromModel($model); $sheet->setAllBorders('thin'); $sheet->setFontFamily('OpenSans'); $sheet->setFontSize(13); $sheet->setFontBold(false); $sheet->setAllBorders('thin'); for ($i = 1; $i <= count($ids) + 1; $i++) { $sheet->setHeight($i, 25); $sheet->row($i, function ($rows) { $rows->setFontColor('#556b7b'); $rows->setAlignment('center'); }); $sheet->cells('A' . $i . ':' . 'B' . $i, function ($cells) { $cells->setValignment('middle'); $cells->setFontColor('#556b7b'); $cells->setFont(array('family' => 'OpenSans', 'size' => '13', 'bold' => false)); }); } // normal header $sheet->cells('A1:B1', function ($cells) { $cells->setBackground('#e9f1f3'); $cells->setFontColor('#556b7b'); $cells->setFont(array('family' => 'OpenSans', 'size' => '15', 'bold' => true)); }); $sheet->row(1, array('Le Niveau', "Nombre d'élèves")); }); })->export('pdf'); }