Moving photos between albums
Moving photos between albums is a great feature for managing the album’s images. Many photo gallery systems come with this feature. So, we can code it easily with Laravel. We need a form and controller function for adding this feature to our photo gallery system. Let’s code the controller function first. Open the ImagesController.php file which is located in app/http/controllers/ and add the following code in it:
public function postMove()
{
$rules = array(
'new_album' => 'required|numeric|exists:albums,id',
'photo'=>'required|numeric|exists:images,id'
);
$validator = Validator::make(Input::all(), $rules);
if($validator->fails()){
return Redirect::route('index');
}
$image = Image::find(Input::get('photo'));
$image->album_id = Input::get('new_album');
$image->save();
return Redirect::route('show_album',array('id'=>Input::get('new_album')));
}
As you can see in the preceding code, we use the Validation class again. Let’s examine the rules. The first rule is as follows:
'new_album' => 'required|numeric|exists:albums,id'
The preceding rule means that the new_album field is required (must be posted in the form), must be a numeric value, and exist in the id column of the albums table. We want to assign images to albums, so the images must exist. The second rule is as follows:
'photo'=>'required|numeric|exists:images,id'
The preceding rule means that the photo field is required (must be posted in the form), must be a numeric value, and exist in the id column of the images table.
After successful validation, we update the album_id column of the photos field and redirect the browser to show the new album of photos using the following code:
$image = Image::find(Input::get('photo'));
$image->album_id = Input::get('new_album');
$image->save();
return Redirect::route('show_album',array('id'=>Input::get('new_album')));
The final code of the Images controller should be as follows:
<?php
class ImagesController extends BaseController{
public function getForm($id)
{
$album = Album::find($id);
return View::make('addimage')
->with('album',$album);
}
public function postAdd()
{
$rules = array(
'album_id' => 'required|numeric|exists:albums,id',
'image'=>'required|image'
);
$validator = Validator::make(Input::all(), $rules);
if($validator->fails()){
return Redirect::route('add_image',array('id' =>Input::get('album_id')))
->withErrors($validator)
->withInput();
}
$file = Input::file('image');
$random_name = str_random(8);
$destinationPath = 'albums/';
$extension = $file->getClientOriginalExtension();
$filename=$random_name.'_album_image.'.$extension;
$uploadSuccess = Input::file('image')->move($destinationPath, $filename);
Image::create(array(
'description' => Input::get('description'),
'image' => $filename,
'album_id'=> Input::get('album_id')
));
return Redirect::route('show_album',array('id'=>Input::get('album_id')));
}
public function getDelete($id)
{
$image = Image::find($id);
$image->delete();
return Redirect::route('show_album',array('id'=>$image->album_id));
}
public function postMove()
{
$rules = array(
'new_album' => 'required|numeric|exists:albums,id',
'photo'=>'required|numeric|exists:images,id'
);
$validator = Validator::make(Input::all(), $rules);
if($validator->fails()){
return Redirect::route('index');
}
$image = Image::find(Input::get('photo'));
$image->album_id = Input::get('new_album');
$image->save();
return Redirect::route('show_album',array('id'=>Input::get('new_album')));
}
}
Our controller is ready, so we need to set up the updated form’s route in app/routes.php. Open the file and add the following code:
Route::post('/moveimage', array('as' => 'move_image', 'uses' => 'ImagesController@postMove'));
The final code located in app/http/routes.php should look as follows:
<?php
Route::get('/', array('as' => 'index', 'uses' =>
'AlbumsController@getList'));
Route::get('/createalbum', array('as' => 'create_album_form',
'uses' => 'AlbumsController@getForm'));
Route::post('/createalbum', array('as' => 'create_album',
'uses' => 'AlbumsController@postCreate'));
Route::get('/deletealbum/{id}', array('as' => 'delete_album',
'uses' => 'AlbumsController@getDelete'));
Route::get('/album/{id}', array('as' => 'show_album', 'uses' =>
'AlbumsController@getAlbum'));
Route::get('/addimage/{id}', array('as' => 'add_image', 'uses' =>
'ImagesController@getForm'));
Route::post('/addimage', array('as' => 'add_image_to_album',
'uses' => 'ImagesController@postAdd'));
Route::get('/deleteimage/{id}', array('as' => 'delete_image',
'uses' => 'ImagesController@getDelete'));
Route::post('/moveimage', array('as' => 'move_image',
'uses' => 'ImagesController@postMove'));
Creating an update form
Now we need to create our update form in our template file. Open the template file which is located inapp/views/ album.blade.php and change the foreach loop as follows:
@foreach($album->Photos as $photo)
<div class="col-lg-3">
<div class="thumbnail" style="max-height: 350px;min-height: 350px;">
<img alt="{{$album->name}}" src="/albums/{{$photo->image}}">
<div class="caption">
<p>{{$photo->description}}</p>
<p>Created date: {{ date("d F Y",strtotime($photo->created_at)) }}at {{ date("g:ha",strtotime($photo->created_at)) }}</p>
<a href="{{URL::route('delete_image',array('id'=>$photo->id))}}" onclick="returnconfirm('Are you sure?')"><button type="button"class="btn btn-danger btn-small">Delete Image</button></a>
<p>Move image to another Album :</p>
<form name="movephoto" method="POST"action="{{URL::route('move_image')}}">
<select name="new_album">
@foreach($albums as $others)
<option value="{{$others->id}}">{{$others->name}}</option>
@endforeach
</select>
<input type="hidden" name="photo"value="{{$photo->id}}" />
<button type="submit" class="btn btn-smallbtn-info" onclick="return confirm('Are you sure?')">Move Image</button>
</form>
</div>
</div>
</div>
@endforeach
Wrapping up
In this article, we’ve created a simple photo gallery system with Laravel’s built-in functions and the Eloquent database driver. We’ve learned how to validate the data, and about the powerful data relation method in Eloquent named hasMany. In the next coming articles , we’ll learn to work with more complex tables, and relational data and relation types.
hope you will like it :)
