Import Excel in Yii2 - mysql

Question

I have yii2 application using advanced template and database mySql, i already make function for import an excel file to one of the table,
I made the function in a controller named student that contains CRUD of students data.this is my code
public function actionImportExcel()
{
$inputFile = 'uploads/siswa_file.xlsx';
try{
$inputFileType = \PHPExcel_IOFactory::identify($inputFile);
$objReader = \PHPExcel_IOFactory::createReader($inputFileType);
$objPHPExcel = $objReader->load($inputFile);
} catch (Exception $e) {
die('Error');
}
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow();
$highestColumn = $sheet->getHighestColumn();
for($row=1; $row <= $highestRow; $row++)
{
$rowData = $sheet->rangeToArray('A'.$row.':'.$highestColumn.$row,NULL,TRUE,FALSE);
if($row==1)
{
continue;
}
$siswa = new Siswa();
$siswa->nis = $rowData[0][0];
$siswa->nama_siswa = $rowData[0][1];
$siswa->jenis_kelamin = $rowData[0][2];
$siswa->ttl = $rowData[0][3];
$siswa->alamat = $rowData[0][4];
$siswa->telp = $rowData[0][5];
$siswa->agama = $rowData[0][6];
$siswa->nama_ortu = $rowData[0][7];
$siswa->telp_ortu = $rowData[0][8];
$siswa->pekerjaan_ortu = $rowData[0][9];
$siswa->tahun_masuk = $rowData[0][10];
$siswa->kelas = $rowData[0][11];
$siswa->save();
print_r($siswa->getErrors());
}
die('okay');
}
but i don't know how to make a button in a view to make this function work. i mean i want to make a button that when the user click the button and browse their excel file they can import that file and the data inside the excel can import to database

Answer 1

First you should upload the file
and then processing with your function
there are several parts of code you must produce ..
eg a view for the user to upload the file
View: #app/views/site/upload.php
<?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?>
<?= $form->errorSummary($model); ?>
<?= $form->field($model, 'imageFile')->fileInput() ?>
<button>Submit</button>
<?php ActiveForm::end() ?>
Controller: #app/controllers/SiteController.php
namespace app\controllers;
use Yii;
use yii\web\Controller;
use app\models\UploadForm;
use yii\web\UploadedFile;
class SiteController extends Controller
{
public function actionUpload()
{
$model = new UploadForm();
if (Yii::$app->request->isPost) {
$model->imageFile = UploadedFile::getInstance($model, 'imageFile');
if ($model->upload()) {
// file is uploaded successfully
return;
}
}
return $this->render('upload', ['model' => $model]);
}
}
Model: #app/models/UploadForm.php
namespace app\models;
use yii\base\Model;
use yii\web\UploadedFile;
class UploadForm extends Model
{
/**
* #var UploadedFile
*/
public $imageFile;
public function rules()
{
return [
[['imageFile'], 'file', 'skipOnEmpty' => false, 'extensions' => 'png, jpg'],
];
}
public function upload()
{
if ($this->validate()) {
$this->imageFile->saveAs('uploads/' . $this->imageFile->baseName . '.' . $this->imageFile->extension);
return true;
} else {
return false;
}
}
}
the code is from this doc