I'm creating a project using Laravel. Users are able to like comments. I want to display a "like" button so a user can like a comment and if the user has already liked the comment I want that button to be "unlike" so a user can unlike the liked comment
In my database I have a likes table:
| id | user_id | comment_id |
My Like Model looks like this:
class Like extends \Eloquent {
protected $fillable = ['user_id', 'comment_id'];
protected $table = 'likes';
public function owner()
{
return $this->belongsTo('Acme\Users\User', 'user_id');
}
}
Comment Model looks like this:
class Comment extends \Eloquent {
protected $fillable = ['user_id', 'post_id', 'body'];
protected $table = 'comments';
public function owner()
{
return $this->belongsTo('Acme\Users\User', 'user_id');
}
public function likes()
{
return $this->hasMany('Acme\Likes\Like');
}
}
User model:
class User extends Eloquent {
public function comments()
{
return $this->hasMany('Acme\Comments\Comment');
}
public function likes()
{
return $this->hasMany('Acme\Likes\Like');
}
}
Likes controller :
class LikesController extends \BaseController {
use CommanderTrait;
/**
* Like a comment
* @return Response
*/
public function commentLike()
{
// using a command bus. Basically making a post to the likes table assigning user_id and comment_id then redirect back
extract(Input::only('user_id', 'comment_id'));
$this->execute(new CommentLikeCommand($user_id, $comment_id));
return Redirect::back();
}
public function unlike()
{
$like = new Like;
$user = Auth::user();
$id = Input::only('comment_id');
$like->where('user_id', $user->id)->where('comment_id', $id)->first()->delete();
return Redirect::back();
}
}
In my view I'm able to get the comments via $comment, and I'm able to get likes via $comment->like have:
@foreach($post->comments as $comment)
<div class="user-comment">
<p class="comment">
{{ $comment->owner->first_name }} {{ $comment->owner->last_name }} {{ $comment->body }}
</p>
<div class="com-details">
<!-- how long ago the comment was posted -->
<div class="com-time-container">
{{ $comment->created_at->diffForHumans() }} ·
</div>
<!-- HERE IS WHERE I WANT THE LIKE AND UNLIKE BUTTONS TO DISPLAY -->
@if ($comment->likes->owner->id === $currentUser->id)
{{ Form::open(['route' => 'like']) }}
{{ Form::hidden('user_id', $currentUser->id) }}
{{ Form::hidden('comment_id', $comment->id) }}
<button type="submit" class="com-like">Like</button>
{{ Form::close() }}
@else
{{ Form::open(['route' => 'unlike']) }}
{{ Form::hidden('user_id', $currentUser->id) }}
{{ Form::hidden('comment_id', $comment->id) }}
<button type="submit" class="com-like">Unlike</button>
{{ Form::close() }}
@endif
<!-- how many users like this comment -->
<span class="likes"> · {{ $comment->likes->count() }}</span>
</div>
</div><!--user-comment end-->
@endforeach
Im trying to set up an if statement to see if the current user has liked the status but im not sure how this is done? If the user has not liked the comment yet I want the "like" button to display. If the user has liked the comment I want the "unlike" button to display. I thought I could say @if($comment->likes->owner->id === $currentUser->id) but I get Undefined property. How would I go about doing this?
$comment->likes is a Collection of Like objects. To access the owner property, you would need to iterate the collection.
However, another option is to use the available methods on the Collection to do what you need:
@if (in_array($currentUser->id, $comment->likes->lists('user_id')))
$comment->likes->lists('user_id') will return an array of all the user_id values in the Collection of Likes for the Comment. in_array() will check if the $currentUser->id is in that array.
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