How to upload image in codeigniter - php

Question

controller:
public function edit($id) {
$this->edit_status_check($id);
$this->form_validation->set_rules('agent_name', 'Agent Name', 'required');
$this->form_validation->set_rules('mobile', 'Mobile No.', 'required');
$this->form_validation->set_rules('agent_vehicle', 'Agent Vehicle', 'required');
if ($this->form_validation->run() == FALSE) {
$data = array(
'page_title' => 'Edit Agent',
'page_name' => 'agent/edit',
'result' => $this->agent_model->select_id($id),
'result_vehicle' => $this->vehicle_model->list_all(),
'error' => validation_errors(),
'id' => $id
);
$this->load->view('template', $data);
} else {
$config['upload_path'] = '../uploads/agent/';
$config['allowed_types'] = 'jpg|jpeg';
$config['encrypt_name'] = TRUE;
$config['max_size'] = 1000; // 1 mb
$this->load->library('upload', $config);
if (!$this->upload->do_upload('agent_image')) {
$data = array(
'page_title' => 'Edit Agent',
'page_name' => 'agent/edit',
'result' => $this->agent_model->select_id($id),
'result_vehicle' => $this->vehicle_model->list_all(),
'error' => $this->upload->display_errors(),
'id' => $id
);
$this->load->view('template', $data);
} else {
$_POST['agent_img_url'] = 'uploads/agent/' . $this->upload->data('file_name');
$this->agent_model->update($_POST, $id);
alert('Update', $_POST['agent_name']);
redirect('agent');
}
}
}
Model:
public function update($data, $id) {
$updatedata = array(
'name' => $data['agent_name'],
'mobile' => $data['mobile'],
'password' => sha1($data['password']),
'vehicle' => $data['agent_vehicle'],
'address' => $data['agent_address'],
'category' => $data['category'],
'created_on' => date('Y-m-d h:i:sa')
);
if (!empty($data['agent_img_url'])) {
$updatedata['img_url'] = $data['agent_img_url'];
}
$this->db->where('id', $id);
$this->db->update('agent', $updatedata);
}
View:
<?= form_open_multipart('agent/edit/' . $id); ?>
<?php if (!empty($error)): ?>
<div class="alert alert-danger alert-dismissible" role="alert">
<?= $error; ?>
</div>
<?php endif; ?>
<div class="form-group">
<img src="/<?= $result['img_url']; ?>" class="img-responsive" name="old_agent_image" width="133" height="100">
</div>
<div class="form-group">
<label>Agent Image</label>
<input type="file" name="agent_image">
</div>
<button type="submit" class="btn btn-success">Update</button>
<?= form_close(); ?>
Hi I'm developing a image upload module and image path save in database and retrieve.
my Question I want it to edit and update but the my problem is it doesn't delete the old image in folder, but it save and update the new image.

Answer 1

use file helper of codeigniter
$this->load->helper("file");
delete_files($path);
reference link for you is here

Answer 2

Delete using the file name saved in the database, use the PHP unlink(../filename.jpg) and delete from files

Answer 3

Change in Model
public function update($data, $id) {
$updatedata = array(
'name' => $data['agent_name'],
'mobile' => $data['mobile'],
'password' => sha1($data['password']),
'vehicle' => $data['agent_vehicle'],
'address' => $data['agent_address'],
'category' => $data['category'],
'created_on' => date('Y-m-d h:i:sa')
);
if (!empty($data['agent_img_url'])) {
$updatedata['agent_img_url'] = $data['agent_img_url'];
}
$q = $this->db->where('id',$id)
->get('agent');
$query = $q->row_array();
#unlink("./asset/uploads/".$query['agent_img_url']);
$this->db->where('id', $id);
$this->db->update('agent', $updatedata);
}

Answer 4

if (!$this->upload->do_upload($name)) {
$data = array('msg' => $this->upload->display_errors());
} else {
$data = array('msg' => "success");
$databasea['upload_data'] = $this->upload->data();
$this->load->library('image_lib');
return $databasea['upload_data']['file_name'];
}
return '';