Codeigniter: Message: Trying to get property of non-object Filename: edit/edit_nilai.php Line Number: 9
Question
Codeigniter: Message: Trying to get property of non-object Filename: edit/edit_nilai.php Line Number: 9
controller:
$this->load->model('M_data');
$data['f']=$this->M_data->selectNilai($this->uri->segment(6));
$this->load->view('kurikulum/penilaian/penilaian/edit/edit_nilai',$data);
model:
public function selectNilai($id)
{
$this->db->where('id_nilai_siswa', $id);
return $this->db->get('nilai_siswa')->row();
}
views (the error file edit/edit_nilai) the bold code is the error line
<html>
<body>
<div class="modal-dialog " >
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h2 class="modal-title">Edit Nilai Siswa</h4>
</div>
<div class="modal-content">
**<form class="form-horizontal formgrup " action="<?php echo base_url('penilaian/ubah_nilai/'.$f->id_nilai_siswa); ?>" method="post" >**
<div class="bigbox-mapel" >
<div class="box-mapel">
</div>
<div class="modal-footer">
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button class="btn btn-success" type="submit">Submit</button>
<button class="btn btn-danger" data-dismiss="modal" href="#lihatkategori" data-toggle="tab">Back</button>
</div>
</div>
</div>
</div>
</form>
</div>
</div>
</body>
</html>
2 answers
solution1
1 2018-09-07 09:01:04
Please check below steps.
1. Please check id exist or not.
2. Please print your result.
3. Please try using below method.
public function selectNilai($id)
{
echo $id;
$this->db->where('id_nilai_siswa', $id);
return $this->db->get('nilai_siswa')->result();
}
echo $f[0]->id_nilai_siswa;
solution2
0 2018-09-07 09:04:40
Because your model function selectNilai($id) is returning nothing.
Possible cause:
- No matching value found in the table with given
$id
Solution:
- Try to check the value of
$id, and manually check if exists in the table.
Best practice:
Always check the value of returned query result before sending it for processing (or write your processing mechanism in a way to handle error). In this case what you can actually do is something like below:
public function selectNilai($id){
$this->db->select('*')->from('nilai_siswa')->where('id_nilai_siswa', $id);
$query = $this->db->get();
if($query->num_rows()){
//found some data, handle it
return $query->result();
} else {
//no matching data found
return FALSE;
}
}
OR
public function selectNilai($id){
$this->db->where('id_nilai_siswa', $id);
$data = $this->db->get('nilai_siswa')->row();
if(isset($data)) return $data; //data found, return it for further processing
else return FALSE; //no data found, handle the case
}
Ref: https://www.codeigniter.com/userguide3/database/results.html#result-rows
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