Insert data excel into 2 tables with id codeigniter - mysql

Question

I have a problem with how to upload files excel with phpsreadsheet to the database. I want to put the data into two tables namely:
Beasiswa contain table: beasiswa_nama, beasiswa_id, beasiswa_file (link file), beasiswa_tahun, DATE_CREATED, DATE_UPDATED.
data_mahasiswa table cotain table: id_mhs, nama_mhs, nim_mhs, (FK) id_beasiswa
How to insert a file and read it to the Beasiswa table, and student data to data_mahasiswa?
Relation table:
Error create data:
Beasiswa Controller
public function create()
{
$this->form_validation->set_rules('nama_beasiswa', 'Nama Beasiswa', 'trim|required');
$this->form_validation->set_rules('tahun_beasiswa', 'Tahun Mahasiswa', 'trim|required');
if (empty($_FILES['nama_mahasiswa_beasiswa']['name'])) {
$this->form_validation->set_rules('nama_mahasiswa_beasiswa', 'File Nama Mahasiswa', 'required');
}
if ($this->form_validation->run() == TRUE) {
// true case
$upload_nama_mahasiswa = $this->_upload_nama_mahasiswa();
$data = array(
'beasiswa_nama' => htmlspecialchars($this->input->post('nama_beasiswa', true)),
'beasiswa_tahun' => htmlspecialchars($this->input->post('tahun_beasiswa', true)),
'beasiswa_file' => $upload_nama_mahasiswa,
'date_created' => date("Y-m-d H:i:s")
);
$create = $this->m_beasiswa->create($data);
if ($create == true) {
$this->session->set_flashdata('success', 'Berhasil Upload Data Beasiswa');
redirect('beasiswa/', 'refresh');
} else {
$this->session->set_flashdata('errors', 'Terjadi Galat. Silahkan Periksa Kembali!!');
redirect('beasiswa/create', 'refresh');
}
} else {
$this->render_template('beasiswa/create', $this->data);
}
}
private function _upload_nama_mahasiswa()
{
$filename = 'import-data';
$config['upload_path'] = 'assets/file/beasiswa/';
$config['file_name'] = $filename;
$config['overwrite'] = TRUE;
$config['allowed_types'] = 'xlsx|xls';
$config['max_size'] = '1024';
$this->load->library('upload', $config);
$this->upload->initialize($config);
if (!$this->upload->do_upload('nama_mahasiswa_beasiswa')) {
// $error = array('errors' => $this->upload->display_errors('File yang anda masukkan tidak sesuai permintaan, atau file terlalu besar.'));
$this->session->set_flashdata('errors', 'File yang anda masukkan tidak sesuai permintaan, atau file terlalu besar.');
redirect('beasiswa/create', 'refresh');
} else {
$data = array('upload_data' => $this->upload->data());
$img = $data['upload_data']['file_name'];
$excelReader = new PhpOffice\PhpSpreadsheet\Reader\Xlsx();
$loadExcel = $excelReader->load($config['upload_path'] . $img);
$sheet = $loadExcel->getActiveSheet()->toArray(null, true, true, true);
$dataExcel = array();
// $this->data['sheet'] = $sheet;
$numRow = 3;
foreach ($sheet as $row) {
if ($numRow > 3) {
array_push(
$dataExcel,
[
'nama_mhs' => $row['A'],
'nim_mhs' => $row['B']
]
);
}
$numRow++;
}
$this->db->insert_batch('data_beasiswa', $dataExcel);
unlink($config['upload_path'] . $img);
}
}
Beasiswa Model
public function create($data)
{
if ($data) {
$insert = $this->db->insert('beasiswa', $data);
return ($insert == true) ? true : false;
}
}
Beasiswa View
<?php
defined('BASEPATH') or exit('No direct script access allowed');
?>
<!-- Main Content -->
<div class="main-content">
<section class="section">
<div class="section-header">
<div class="section-header-back">
<i class="fas fa-arrow-left"></i>
</div>
<h1>Tambah Beasiswa</h1>
</div>
<div class="section-body">
<div class="row">
<div class="col-md-12 col-xs-12 col-xl-12 col-12">
<div id="messages"></div>
<?php if ($this->session->flashdata('success')) : ?>
<div class="alert alert-success alert-dismissible">
<div class="alert-body">
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<?php echo $this->session->flashdata('success'); ?>
</div>
</div>
<?php elseif ($this->session->flashdata('errors')) : ?>
<div class="alert alert-danger alert-dismissible show fade">
<div class="alert-body">
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<?php echo $this->session->flashdata('errors'); ?>
</div>
</div>
<?php endif; ?>
<div class="card">
<div class="card-body">
<b style="font-size: 17px">Unduh format excel data mahasiswa</b><br>
Download template
<form action="<?php base_url('beasiswa/create') ?>" method="POST" enctype="multipart/form-data">
<div class="form-group">
<div class="section-title">Nama Program Beasiswa</div>
<input type="text" class="form-control" name="nama_beasiswa" id="nama_beasiswa" placeholder="Nama Program Beasiswa" value="<?= set_value('nama_beasiswa'); ?>">
<?= form_error('nama_beasiswa', '<small class="text-danger">', '</small>'); ?>
</div>
<div class="form-group">
<div class="section-title">Tahun Beasiswa</div>
<input type="text" class="form-control" name="tahun_beasiswa" id="tahun_beasiswa" placeholder="Tahun Beasiswa (contoh: 2020)" value="<?= set_value('tahun_beasiswa'); ?>">
<?= form_error('tahun_beasiswa', '<small class="text-danger">', '</small>'); ?>
</div>
<div class="form-group">
<div class="section-title">Upload File Nama Mahasiswa</div>
<input type="file" name="nama_mahasiswa_beasiswa" id="nama_mahasiswa_beasiswa" class="form-control col-sm-6 col-md-6">
<p class="text-danger" style="font-style:italic"><b>* Upload file sesuai dengan format yang sudah disesuaikan</b></p>
</div>
<button type="submit" class="btn btn-primary">Simpan</button>
Kembali
</form>
</div>
</div>
</div>
</div>
</div>
</section>
</div>

Answer 1

It is because foreign key error probably happening because you insert a null data in data_mahasiswa table.
There was empty space in your excel (that probably have been edited?) that are used in foreach ($sheet as $row). You can fix this with:
foreach ($sheet as $row) {
if ($numRow > 3) {
if($row['A'] != null && $row['B'] != null)
{
$dataExcel[] = array(
'nama_mhs' => $row['A'],
'nim_mhs' => $row['B']
);
}
/*you can also break the function, if no empty row between data in your excel*/
/*else
{
break;
}*/
}
}

Answer 2

you need to get rid of the null value when you input the data to the database. above this line of your code at Beasiswa Controller
$this->db->insert_batch('data_beasiswa', $dataExcel);
add this line of code to delete cell that have null data
foreach ($dataExcel as $data => $val) {
if(empty($val['nama_mhs'])){
unset($dataExcel[$data]['nama_mhs']);
unset($dataExcel[$data]['nim_mhs']);
}
}
$dataExcel = array_filter($dataExcel);
$data = array('data_excel' => $dataExcel);