I am a newbe in Laravel. The docs show how to use relationships like this:
One To Many (Inverse) / Belongs To
Now that we can access all of a post's comments, let's define a relationship to allow a comment to access its parent post. To define the inverse of a hasMany relationship, define a relationship method on the child model which calls the belongsTo method:
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Comment extends Model
{
/**
* Get the post that owns the comment.
*/
public function post()
{
return $this->belongsTo(Post::class);
}
}
Once the relationship has been defined, we can retrieve a comment's parent post by accessing the post "dynamic relationship property":
use App\Models\Comment;
$comment = Comment::find(1);
return $comment->post->title;
My question is: Where is this code? In a controller or in a view?
If you use MVC structure, you should understand that
Model is layer where you store your data
View is layer where you should only display your data
and Controller is layer where you can keep your logic.
If you have a lot of difficult logic or big application, you should better to use Services, as layer between Controllers And Models.
Receiving Comments from model and prepeare them should be in controller level. In view level you just define how to show them to user.
I hope it will help you to understand difference between logic layers.
you can access this relationship in controller or view like this-
suppose you want to make relation between product model and brand model:-
in product model:-
public function brand(){
return $this->belongsTo('App\Model\Brand','brand_id','id');
}
now you are able to see which product belongs to which brand without any query or using loop.
just do in controller:-
$product=Product::with('brand')->get();
here you get all the data...
and when you use it on **view **just do it:
{{$product->brand->brand_name}}
//brand name should the column name
I hope you understood...
Happy Learning!
Problem
I have two classes, Users & Posts. A user "hasMany" posts and a post "belongTo" a user. But when I call "User::all()" it doesn't automatically pull the users posts for obvious reasons, because if my user had relations to 100 different tables pulling all users would start to become pretty chunky.
Question
Is there a way to pull all users and all user->posts in one or few lines of code without going through a foreach loop?
I know i can use a mutator but the problem I have is my field is called user_id and i have tested it with this code:
public function getUserIdAttribute($id)
{
return User::find($id);
}
But it will replace "user_id" field value with a user object, Id rather have it set to its own "temporary user" field within the result. I'm trying to find best practice!
Thank you in advance.
What you're looking for is called Eager Loading
Inside your post model :
class Post extends Model
{
protected $table='posts';
public $primaryKey='id';
public function user(){
return $this->belongsTo('App\User','user_id');
}
}
now you want to get post with user use below code :
$posts=Post::with('user')->get();
inside your user model :
class User extends Model
{
public function posts(){
return $this->hasMany('App\Model\Post');
}
}
now you want to get a user with all posts :
$user=User::where('id',$id)->first();
$user_posts=$user->posts;
How can i get article owner user_id and save to notifiable_id field
Suppos
$articlecomment = $article_owner_id
My code:
$articlecomment = new Article_comment();
$articlecomment->user_id = Auth::user()->id;//Comment by user id
$articlecomment->article_id = $request->articleid;
$articlecomment->comment = $request->comment;
$articlecomment->save();
auth()->user()->notify(new ArticleNotification($articlecomment));
//$articlecomment->user()->notify(new ArticleNotification($articlecomment));
Database Screenshot
i want article_owner_user_id on notifible_id field
enter image description here
Solved
$articlecomment->save();
$article = Article::where('id','=',$request->articleid)->first();
if($article->user_id != Auth::User()->id){
$article->user->notify(new ArticleNotification($article));
}
This is database i need article_owner_id on notifible_id field click here to see screenshot
If you have a relationship set up for your Article_comment and Article models, you can access the "Article Owner" through the relation.
For example, define a relation for your "Article" model inside your Article_comment class (assuming Article is the name of your model):
class Article_comment extends Model {
....
public function article() {
return $this->hasOne('App\Article', 'id', 'article_id')
}
....
}
Once you have that set, you can access your relation (and subsequent properties) like so (assuming article_owner_id is a property of your Article model):
$articlecomment->article->article_owner_id
Edit:
Whichever user you call notify on will notify that user. So to notify the article owner, you will need to get the user of the article and call notify from that instance (rather than the auth user). If you set up a relation to the user on your Article class, you can simply call notify from that, or get the user from the article_owner_id and call notify.
Example:
$user = User::where('id', '=', $articlecomment->article->article_owner_id)->first();
$user->notify(new ArticleNotification($articlecomment));
With a relation set on your Article class, you could instead call notify like this:
$articlecomment->article->user->notify(new ArticleNotification($articlecomment));
For more info on Eloquent relationships, see https://laravel.com/docs/5.6/eloquent-relationships#introduction
I want to implement page view counter in my app. What I've done so far is using this method :
public function showpost($titleslug) {
$post = Post::where('titleslug','=',$titleslug)->firstOrFail();
$viewed = Session::get('viewed_post', []);
if (!in_array($post->id, $viewed)) {
$post->increment('views');
Session::push('viewed_post', $post->id);
}
return view('posts/show', compact('post', $post));
}
I retrieve the popular posts list like this :
$popular_posts = Post::orderBy('views', 'desc')->take(10)->get();
However, I'd like to know if there are any better ways to do this ? And with my current method, can I get a list of most viewed posts in the past 24 hours ? That's all and thanks!
As quoted in # milo526's comment, you can record all hits to your pages in a unique way instead of an increment. With this you have many possibilities to search for access information, including the listing of the posts sorted by most viewed.
Create a table to save your view records:
Schema::create("posts_views", function(Blueprint $table)
{
$table->engine = "InnoDB";
$table->increments("id");
$table->increments("id_post");
$table->string("titleslug");
$table->string("url");
$table->string("session_id");
$table->string("user_id");
$table->string("ip");
$table->string("agent");
$table->timestamps();
});
Then, create the corresponding model:
<?php namespace App\Models;
class PostsViews extends \Eloquent {
protected $table = 'posts_views';
public static function createViewLog($post) {
$postsViews= new PostsViews();
$postsViews->id_post = $post->id;
$postsViews->titleslug = $post->titleslug;
$postsViews->url = \Request::url();
$postsViews->session_id = \Request::getSession()->getId();
$postsViews->user_id = \Auth::user()->id;
$postsViews->ip = \Request::getClientIp();
$postsViews->agent = \Request::header('User-Agent');
$postsViews->save();
}
}
Finally, your method:
public function showpost($titleslug)
{
$post = PostsViews::where('titleslug', '=' ,$titleslug)->firstOrFail();
PostsViews::createViewLog($post);
//Rest of method...
}
To search the most viewed posts in the last 24 hours:
$posts = Posts::join("posts_views", "posts_views.id_post", "=", "posts.id")
->where("created_at", ">=", date("Y-m-d H:i:s", strtotime('-24 hours', time())))
->groupBy("posts.id")
->orderBy(DB::raw('COUNT(posts.id)', 'desc'))
->get(array(DB::raw('COUNT(posts.id) as total_views'), 'posts.*'));
Note that in PostsViews, you have data that can help further filter your listing, such as the session id, in case you do not want to consider hits from the same session.
You may need to adapt some aspects of this solution to your final code.
2020 Update (2)/ With Eloquent Relationships for Laravel 6
If you don't want to add a package to your application. I have developed the following solution based on "Jean Marcos" and "Learner" contribution to the question and my own research.
All credit goes to "Jean Marcos" and "Learner", I felt like I should do the same as Learner and update the code in a way the would be beneficial to others.
First of all, make sure you have a sessions table in the database. Otherwise, follow the steps in Laravel documentations to do so: HTTP Session
Make sure that the sessions are stored in the table. If not, make sure to change the SESSION_DRIVER variable at the .env set to 'database' not 'file' and do composer dump-autoload afterwards.
After that, you are all set to go. You can start by running the following console command:
php artisan make:model PostView -m
This will generate both the model and migration files.
Inside of the migration file put the following Schema. Be cautious with the columns names. For example, my posts table have the "slug" column title name instead of the "titleslug" which was mentioned in the question.
Schema::create('post_views', function (Blueprint $table) {
$table->increments("id");
$table->unsignedInteger("post_id");
$table->string("titleslug");
$table->string("url");
$table->string("session_id");
$table->unsignedInteger('user_id')->nullable();
$table->string("ip");
$table->string("agent");
$table->timestamps();
});
Then put the following code inside the PostView model file.
<?php
namespace App;
use App\Post;
use Illuminate\Database\Eloquent\Model;
class PostView extends Model
{
public function postView()
{
return $this->belongsTo(Post::class);
}
public static function createViewLog($post) {
$postViews= new PostView();
$postViews->post_id = $post->id;
$postViews->slug = $post->slug;
$postViews->url = request()->url();
$postViews->session_id = request()->getSession()->getId();
$postViews->user_id = (auth()->check())?auth()->id():null;
$postViews->ip = request()->ip();
$postViews->agent = request()->header('User-Agent');
$postViews->save();
}
}
Now inside the Post model write the following code. This to create the relation between the posts table and the post_views table.
use App\PostView;
public function postView()
{
return $this->hasMany(PostView::class);
}
In the same Post model you should put the following code. If the user is not logged in the the code will test the IP match. Otherwise, it will test both the session ID and the user ID as each user might have multiple sessions.
public function showPost()
{
if(auth()->id()==null){
return $this->postView()
->where('ip', '=', request()->ip())->exists();
}
return $this->postView()
->where(function($postViewsQuery) { $postViewsQuery
->where('session_id', '=', request()->getSession()->getId())
->orWhere('user_id', '=', (auth()->check()));})->exists();
}
You are ready now to run the migration.
php artisan migrate
When the user ask for the post. The following function should be targeted inside the PostController file:
use App\PostView;
public function show(Post $post)
{
//Some bits from the following query ("category", "user") are made for my own application, but I felt like leaving it for inspiration.
$post = Post::with('category', 'user')->withCount('favorites')->find($post->id);
if($post->showPost()){// this will test if the user viwed the post or not
return $post;
}
$post->increment('views');//I have a separate column for views in the post table. This will increment the views column in the posts table.
PostView::createViewLog($post);
return $post;
}
As I have a separate column for views in the post table. To search the most viewed posts in the last 24 hours you write this code in the controller. Remove paginate if you don't have pagination:
public function mostViwedPosts()
{
return Posts::with('user')->where('created_at','>=', now()->subdays(1))->orderBy('views', 'desc')->latest()->paginate(5);
}
I hope this would help/save someones time.
2020 Update
First of all, thanks a lot "Jean Marcos" for his awesome answer. All credit goes to him, I am just pasting a slightly modified answer combining my knowledge of Laravel as well.
Create a table to save your view records and name it with snake_case plural: post_views
Schema::create("post_views", function(Blueprint $table)
{
$table->engine = "InnoDB";//this is basically optional as you are not using foreign key relationship so you could go with MyISAM as well
$table->increments("id");
//please note to use integer NOT increments as "Jean Marcos' answer" because it will throw error "Incorrect table definition; there can be only one auto column and it must be defined as a key" when running migration.
$table->unsignedInteger("post_id");//note that the Laravel way of defining foreign keys is "table-singular-name_id", so it's preferable to use that
$table->string("titleslug");
$table->string("url");
$table->string("session_id");
$table->unsignedInteger('user_id')->nullable();//here note to make it nullable if your page is accessible publically as well not only by logged in users. Also its more appropriate to have "unsignedInteger" type instead of "string" type as mentioned in Jean Marcos' answer because user_id will save same data as id field of users table which in most cases will be an auto incremented id.
$table->string("ip");
$table->string("agent");
$table->timestamps();
});
Then, create the corresponding model. Please note to create "PascalCase" model name and singular form of the table so it should be like: PostView
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class PostView extends Model
{
public static function createViewLog($post) {
$postViews= new PostView();
$postViews->listing_id = $post->id;
$postViews->url = \Request::url();
$postViews->session_id = \Request::getSession()->getId();
$postViews->user_id = (\Auth::check())?\Auth::id():null; //this check will either put the user id or null, no need to use \Auth()->user()->id as we have an inbuild function to get auth id
$postViews->ip = \Request::getClientIp();
$postViews->agent = \Request::header('User-Agent');
$postViews->save();//please note to save it at lease, very important
}
}
Then run the migration to generate this table
php artisan migrate
Finally, your method:
public function showpost($titleslug)
{
$post = PostView::where('titleslug', '=' ,$titleslug)->firstOrFail();
\App\PostView::createViewLog($post);//or add `use App\PostView;` in beginning of the file in order to use only `PostView` here
//Rest of method...
}
To search the most viewed posts in the last 24 hours:
$posts = Posts::join("post_views", "post_views.id_post", "=", "posts.id")
->where("created_at", ">=", date("Y-m-d H:i:s", strtotime('-24 hours', time())))
->groupBy("posts.id")
->orderBy(DB::raw('COUNT(posts.id)'), 'desc')//here its very minute mistake of a paranthesis in Jean Marcos' answer, which results ASC ordering instead of DESC so be careful with this line
->get([DB::raw('COUNT(posts.id) as total_views'), 'posts.*']);
Note that in PostView, you have data that can help further filter your listing, such as the session id, in case you do not want to consider hits from the same session.
You may need to adapt some aspects of this solution to your final code.
So those were few modifications I wanted to point out, also you might want to put an additional column client_internet_ip in which you can store \Request::ip() which can be used as a filter as well if required.
I hope it helps
Eloquent Viewable package can be used for this purpose. It provides more flexible ways to do stuff like this(counting page views).
Note:The Eloquent Viewable package requires PHP 7+ and Laravel 5.5+.
Make Model viewable:
Just add the Viewable trait to the model definition like:
use Illuminate\Database\Eloquent\Model;
use CyrildeWit\EloquentViewable\Viewable;
class Post extends Model
{
use Viewable;
// ...
}
Then in the controller:
public function show(Post $post)
{
$post->addView();
return view('blog.post', compact('post'));
}
After that you can do stuff like this:(see package installation guide for more details)
// Get the total number of views
$post->getViews();
// Get the total number of views since the given date
$post->getViews(Period::since(Carbon::parse('2014-02-23 00:00:00')));
// Get the total number of views between the given date range
$post->getViews(Period::create(Carbon::parse('2014-00-00 00:00:00'), Carbon::parse('2016-00-00 00:00:00')));
// Get the total number of views in the past 6 weeks (from today)
$post->getViews(Period::pastWeeks(6));
// Get the total number of views in the past 2 hours (from now)
$post->getViews(Period::subHours(2));
// Store a new view in the database
$post->addView();
Implements same kind of idea as in the accepted answer, but provides more features and flexibilities.
First of all thanks to user33192 for sharing the eloquent viewable. Just want to make it clearer for others after looking at the docs. Look at the docs to install the package.
Do this in your Post Model:
use Illuminate\Database\Eloquent\Model;
use CyrildeWit\EloquentViewable\InteractsWithViews;
use CyrildeWit\EloquentViewable\Viewable;
class Post extends Model implements Viewable
{
use InteractsWithViews;
// ...
}
In your posts controller, use the record method to save a view;
public function show($slug)
{
$post = Post::where('slug',$slug)->first();
views($post)->record();
return view('posts.show',compact('post'));
}
In your views you can return the views (mine is posts.show) as you want. Check the document for more. I will just the total views of a post.
<button class="btn btn-primary">
{{ views($post)->count() }} <i class="fa fa-eye"></i>
</button>
I want to retrieve the user's photo and display it in a thumbnail form which i have stored in public/assets/uploads/thumbnail/. I tried auth()->user()->user_detail->file_name but I can't get it to work. How do you do it ?
you have to first define a relationship if they are stored in different table
like i did in model
public function imagedata() {
return $this->hasMany(Images::class, 'listID', 'id');
}
and after that when you get the user just call this method like this
$listingimg = Listings::findOrfail($id);
and for calling the relationship
foreach (listingimg as $singleIlisting) {
$singleIlisting->imagedata;
}
modify the code according your needs as if needed and by the way relatio is one to many