summernote controllel

$this->output->set_content_type('application/json');
        $this->_rules();
        $this->form_validation->set_rules('judul', 'Judul', 'trim|required|is_unique[post.judul]',
            array(
                'required'   => 'Kolom %s harus di isi!',
                'is_unique'  => '%s dengan nama ini sudah ada!'
            ));

        $foto['allowed_types']   = 'jpg|png|jpeg';
        $foto['overwrite']       = TRUE;
        $foto['file_name']       = judul_seo($this->input->post('judul')).'-'.get_data_dinamis('fakultas', 'nama_fsi', $this->config->item('fsi'), 'id');
        $foto['upload_path']     = './assets/upload/post/';

        $this->load->library('upload', $foto);

        $admin = array('admin','ketum');
        if($this->ion_auth->in_group($admin)){
            $this->form_validation->set_rules('status', 'Status Post', 'trim|required',array('required'   => 'Kolom %s harus di isi!'));
        }

        if ($this->form_validation->run() == FALSE) {
            $data = array(
				'judul'    => form_error('judul'),
				'kategori' => form_error('kategori'),
				'isi_post' => form_error('isi_post'),
				'tags'     => form_error('tags'),
		    );
            if($this->ion_auth->in_group($admin)){
                $data['status'] = form_error('status');
            }
            if(! $this->upload->do_upload("foto")){
                $data['foto'] = $this->upload->display_errors('','');
            }
            echo json_encode([
                'error'      => $data,
                'status_data' => 99,
                'token'       => $this->security->get_csrf_hash(),
            ]);
        }else{
            $data = array(
				'judul'       => $this->input->post('judul',TRUE),
				'kategori'    => $this->input->post('kategori',TRUE),
				'isi_post'    => $this->input->post('isi_post',TRUE),
				'tags'        => $this->input->post('tags',TRUE),
				'uploader'    => $this->session->userdata('user_login'),
				'tgl_upload'  => date('Y-m-d'),
				'id_fsi'      => $this->config->item('fsi'),
				'status'      => 'pending',
		    );

            if ($this->upload->do_upload("foto")) {
                $data['nama_foto']   = $this->upload->data('file_name');
                $data['type_foto']   = $this->upload->data('file_type');
                $data['ukuran_foto'] = $this->upload->data('file_size');
                $data['ext_foto'] = $this->upload->data('file_ext');
            }

            if($this->ion_auth->in_group($admin)){
                $data['published'] = $this->session->userdata('user_login');
                $data['status'] = $this->input->post('status');
            }
            $this->Post_model->insert($data);
            $sukses=array(
                'status_data' => $this->db->affected_rows(),
                'sukses'      => 'Sukses',
                'token'       => $this->security->get_csrf_hash(),
            );
            $this->session->set_flashdata('message', 'Create Record Success');
            echo json_encode($sukses);
        }