Image upload to specific folder in codeigniter - image

Question

I've been trying to upload images to specific folder my scenario is I've upload controller in which I've do_upload function
public function do_upload($field_name) {
$field_name = 'image_title';
$page_id = $this->input->post('page_id');
$config = array(
'allowed_types' => '*',
'max_size' => '1024',
'max_width' => '1024',
'max_height' => '768',
'upload_path' => './uploads/'. $page_id
);
$this->load->library('upload');
$this->upload->initialize($config);
if (!is_dir('uploads'))
{
mkdir('./uploads/', 0777, true);
}
$dir_exist = true; // flag for checking the directory exist or not
if (!is_dir('uploads/' . $page_id))
{
mkdir('./uploads/' . $page_id, 0777, true);
$dir_exist = false; // dir not exist
}
else{
}
if (!$this->upload->do_upload($field_name)) {
if(!$dir_exist)
rmdir('./uploads/' . $page_id);
$this->data['error'] = array('error' => $this->upload->display_errors());
} else {
$fInfo = $this->upload->data($field_name);
$this->_createThumbnail($fInfo['file_name']);
return $fInfo;
}
}
/**********************************************************************************************/
function _createThumbnail($filename)
{
$config['image_library'] = "gd2";
$config['source_image'] = "uploads/" .$filename;
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width'] = "80";
$config['height'] = "80";
$this->load->library('image_lib',$config);
if(!$this->image_lib->resize())
{
echo $this->image_lib->display_errors();
}
I've index view file given as
<section>
<?php echo validation_errors(); ?>
<?php //echo form_open_multipart('admin/upload/index/' . ((isset($page->id)) ? $page->id : '' )); ?>
<?php echo form_open_multipart('admin/upload/index/'); ?>
<tr>
<td><h3>Upload Images</h3></td>
</tr>
<table class="table table-striped">
<tr>
<thead>
<tr>
<th>Image Name</th>
<th>View</th>
<th>Delete</th>
</tr>
</thead>
<tbody>
<?php if (count($images)): foreach ($images as $image): ?>
<tr>
<td><?php echo anchor('admin/upload/index/' . $image->id, $image->image_title); ?></td>
<td><?php echo btn_edit('admin/upload/index/' . $image->id); ?></td>
<td><?php echo btn_delete('admin/upload/index/' . $image->id); ?></td>
</tr>
<?php endforeach; ?>
<?php else: ?>
<tr>
<td colspan="3">There is no Image to display</td>
</tr>
<?php endif; ?>
</tbody>
</table>
</section>
<section>
<table class="table table-striped">
<tbody>
<tr>
<td><h5>Select Page</h5></td>
<td><?php echo form_dropdown('page_id', $get_with_images, $this->input->post('page_id')); ?></td>
</tr>
<tr>
<td><h5>Select Image</h5></td>
<td>
<?php echo form_upload('image_title', set_value('image_title', $image->image_title)); ?>
</td>
</tr>
<tr>
<td><?php echo form_submit('submit', 'Upload', 'class="btn btn-success"'); ?></td>
</tr>
</tbody>
</table>
<?php echo form_close(); ?>
</section>
dropdown is populating from page controller what actually I needed is I want to upload image to the page selected from dropdown for example if "Contact" page is selected from dropdown I want to upload my image to "Contact" page and on the backend I want to create directory with the same name as selected in dropdown in my case I want "uploads/home/abc.jpg" and same for the other pages please advice the basic idea I will modify it with my own

Answer 1

You're already sending your pageid value as post. Use it at uploading config.
...
$config = array(
...
'upload_path' => './upload/' . $this->input->post('page_id')
)
You need to check if directory exists first, use isdir() PHP function, and if false, mkdir(), also PHP, with folder name and permission.
I'm not familiar anymore with CodeIgniter to tell you if there is some way to get written value of a <option> tag, but I would suggest to create a array with page ids and their respective name and look for the array's index by post value:
$page_name = [
0 => 'contact',
1 => 'home',
2 => 'user',
...
]
...
$config = array(
...
'upload_path' => './upload/' . $page_name[$this->input->post('page_id')]
)
EDIT: User had problems with thumb creation
With your update, you forgot to update also path of the thumbnail. So you must send the folder and filename:
function _createThumbnail($folder, $filename)
{
$config['image_library'] = "gd2";
$config['source_image'] = "./uploads/" $folder . "/" .$filename;
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width'] = "80";
$config['height'] = "80";
$this->load->library('image_lib',$config);
if(!$this->image_lib->resize())
{
echo $this->image_lib->display_errors();
}
Then you should call it as you were, replacing the parameters correctly:
$this->_createThumbnail($page_id, $fInfo['file_name']);