How to Make Image upload optional in codeigniter? - codeigniter

Question

There is a form that has 4 text fields, Name, Mobile, Email & Image. However Image field is optional. When I submit the data without inserting an image it shows "You did not select a file to upload". How to solve it.
My controller function is:
public function addAgent(){
$this->form_validation->set_rules('AgentName','AgentName','required');
$this->form_validation->set_rules('mobile','mobile','required');
$this->form_validation->set_rules('email', 'email', 'required');
if ($this->form_validation->run() == FALSE) {
$this->session->set_flashdata('registerMessage',errors(),':old:');
redirect(base_url());
}else{
$config['upload_path'] = './uploads';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = 50000;
$config['max_width'] = 10240;
$config['max_height'] = 7680;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload('image'))
{
$this->session->set_flashdata('registerMessage',$this->upload->display_errors(),':old:');
redirect(base_url());
}
else
{
$dataUpload = $this->upload->data();
$filename = $dataUpload['file_name'];
}
}
$data = array(
'AgentName' => $this->input->post('AgentName'),
'mobile' => $this->input->post('mobile'),
'image' => $filename,
'email' => $this->input->post('email')
);
$this->general_model->insert('agent',$data);
$this->session->set_flashdata('registerMessage','AddedSuccessfully',':old:');
redirect(base_url());
}

Answer 1

Check if the file array for that key image is populated and if it has a tmp_name:
public function addAgent() {
$this->form_validation->set_rules('AgentName', 'AgentName', 'required');
$this->form_validation->set_rules('mobile', 'mobile', 'required');
$this->form_validation->set_rules('email', 'email', 'required');
if ($this->form_validation->run() == FALSE) {
$this->session->set_flashdata('registerMessage', errors(), ':old:');
redirect(base_url());
}
$filename = ''; // init as blank otherwise notice
if (isset($_FILES['image']) && !empty($_FILES['image']['tmp_name'])) {
$config['upload_path'] = './uploads/'; // should have slash at end
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = 50000;
$config['max_width'] = 10240;
$config['max_height'] = 7680;
$this->load->library('upload', $config);
if (!$this->upload->do_upload('image')) {
$this->session->set_flashdata('registerMessage', $this->upload->display_errors(), ':old:');
redirect(base_url());
} else {
$dataUpload = $this->upload->data();
$filename = $dataUpload['file_name'];
}
}
$data = array(
'AgentName' => $this->input->post('AgentName'),
'mobile' => $this->input->post('mobile'),
'image' => $filename,
'email' => $this->input->post('email')
);
$this->general_model->insert('agent', $data);
$this->session->set_flashdata('registerMessage', 'AddedSuccessfully', ':old:');
redirect(base_url());
}