method_Upload

if( isset($_FILES['image_kat']) ) {
                    $this->upload->setOption(
                        array(
                            'folderLocation' => 'upload/gallery/kategori',
                            'autoRename' => true,
                            'autoCreateFolder' => true,
                            'permittedFileType' => 'gif|png|jpg|jpeg',
                            'maximumSize' => 5000000, //5Mb
                             'editImage' => array(
                                'editType' => PIMG_RESIZE,
                                'resizeWidth' => 250
                                )
                            )
                        );

                    $file_kat = $this->upload->now($_FILES['image_kat']);
                    $nama_foto_kat=$this->upload->getFileInfo();


                    if($file_kat) {

                        //input kategori gallery
                        $data_kategori=array(
                            'nama_kategori'=>$nama_kategori,
                            'image_kat'=>$nama_foto_kat['name'],
                            'keterangan'=>$keterangan,
                            'tgl_input'=>date('Y-m-d'),
                        );
                        $last_kat_id=$this->gallery->input_kategori($data_kategori);

                        //mulai upload image
                        $pengulang=$this->request->post('pengulang');
                        $i=0;
                        foreach($pengulang as $pengulang){

                        $keterangan_foto=$this->request->post('keterangan_foto');
                            //prosesupload gallery
                            $foto=$_FILES['foto'.$i.''];
                                if(isset($foto)) {
                                    $this->upload->setOption(
                                        array(
                                            'folderLocation' => 'upload/gallery',
                                            'autoRename' => true,
                                            'autoCreateFolder' => true,
                                            'permittedFileType' => 'gif|png|jpg|jpeg',
                                            'maximumSize' => 5000000, //5Mb
                                        )
                                    );

                                    $file = $this->upload->now($foto);
                                    $nama_foto=$this->upload->getFileInfo();

                                    if($file) {
                                        //proses input gallery
                                        $data_gallery=array(
                                            'foto'=>$nama_foto['name'],
                                            'kategori'=>$last_kat_id,
                                            'keterangan'=>$keterangan_foto[$i],
                                            'tgl_input'=>date('Y-m-d'),
                                        );
                                            $this->gallery->input_gallery($data_gallery);
                                    }else{

                                        $data['alert']='
                                            <div class="alert alert-danger alert-dismissable">
                                            <button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
                                            <h4>    <i class="icon fa fa-check"></i> Upload Foto Gagal</h4>
                                            '.$this->upload->getError('message').'
                                            </div>
                                            ';
                                    //Tidak aeda file
                                    }

                                }else{
                                    $data['alert']='
                                        <div class="alert alert-danger alert-dismissable">
                                        <button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
                                        <h4>    <i class="icon fa fa-check"></i> Upload Foto Gagal</h4>

                                        </div>
                                        ';
                                } //if isset $foto
                            $i++;
                        } //END foreach



                        $data['alert']='
                        <div class="alert alert-success alert-dismissable">
                        <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
                        <h4><i class="icon fa fa-check"></i> Upload Berhasil</h4>
                        <p>Selamat anda berhasil Upload gallery.</p>
                            </div>
                        ';

                    }else{

                        $data['alert']='
                            <div class="alert alert-danger alert-dismissable">
                            <button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
                            <h4>    <i class="icon fa fa-check"></i> Upload gagal kategori</h4>
                            '.$this->upload->getError('message').'
                            </div>
                            ';
                    //Tidak aeda file
                    }