I have an user. User create many ads.I want to see users details with ads where ads shown by paginate. For this, i make two model(User & Ads)
public function user(){
return $this->hasOne(User::class, 'id', 'user_id');
}
public function ads(){
return $this->hasMany(Ads::class, 'user_id', 'id');
}
In controller i call like this:
$users = Ads::with(['user'=> function ($q) use ($id){
$q->where('id',$id);
}])->paginate(2);
But here user's details are shown when forelse loop are called. But i don't want this.
So, How can i get user's details with ads's pagination?
I think you're overcomplicating.
You has two models.
In User, you can put this relationship:
public function ads(){
return $this->hasMany(App\Ad, 'user_id', 'id');
}
In Ads model, you put this relationship:
public function user(){
return $this->belongsTo(App\User, 'id', 'user_id');
}
In your controller, you simple call like this:
//If you want a list of User's Ads
$user = User::find(1);
$userAds = $user->ads()->paginate(2); //you paginate because can be many
//If you want the details from a user who made the Ad #1
$ad = Ad::find(1);
$user = $ad->user; //Don't need paginate because is only one.
Related
I have a User model which has the following method:
public function articles()
{
return $this->hasMany('App\Article');
}
And also Article model, which has:
public function user()
{
return $this->belongsTo('App\User');
}
I want to return a list of users that contains each of thems articles. So with this one:
// only returns list of users
return $user = User::all();
And with the following:
$user = User::all();
foreach ($user[0]->articles as $article) {
return $article;
}
I only get the first one's articles. Is there any way (in laravel) to retrieve the whole list with each one's articles?
you need to call with method to eager load all articles.
$user = User::with('articles')->get();
dd($user);
or if you want to lazy load then.
$user = User::get();
dd($user->articles());
you can use select() to select specific columns - for example
$user = User::select('name','email')->get();
if you want to select specific columns in with() then
$user = User::with(['articles' => function($query){
$query->select('id','title');
}])->get();
or
$user = User::with(['articles' => function($query){
$query->select('id','title');
}])->select('name','email')->get();
The issue here is that you return inside the foreach loop, which will stop the loop after the first iteration, and therefore only return the first article.
If you want to show the user and articles in a JSON response, you should look at Eloquent Resources, Writing Resources, especially the Relationships part of that chapter.
In my application, I have setup a User model that can have subscribers and subscriptions through a pivot table called subscriptions.
public function subscribers()
{
return $this->belongsToMany('Forum\User', 'subscriptions', 'subscription_id', 'subscriber_id');
}
public function subscriptions()
{
return $this->belongsToMany('Forum\User', 'subscriptions', 'subscriber_id', 'subscription_id');
}
My question is, what relationship should I use to get a list of paginated Post models (belong to a User) from the User's subscriptions?
You can use the whereHas method to filter based on relationships. Assuming your Post model has a user relationship defined, your code would look something like:
// target user
$user = \App\User::first();
$userId = $user->id;
// get all of the posts that belong to users that have your target user as a subscriber
\App\Post::whereHas('user.subscribers', function ($query) use ($userId) {
return $query->where('id', $userId);
})->paginate(10);
You can read more about querying relationship existence in the documentation.
You can do something like this
\App\Post::with(['subscriptions' => function ($query) {
$query->where('date', 'like', '%date%');
}])->paginate(15);
Or without any conditions
\App\Post::with('subscriptions')->paginate(15);
I would like to display the posts of everyone the current user follows, ordered by date desc.
I have a many to many relationship supplying all the people the user is following.
$users = User::find(Auth::user()->id)->follow()->get();
I have a one to many relationship displaying the posts for any user.
$updates = App\User::find(?????)->updates()->orderBy('created_at', 'desc')->get();
The question mark's shows where the followers ID's need to be placed.
I can put the above query inside the for each loop but that obviously works its way through each follower rather than all posts in date order.
I suspect I may need to set a new relationship and work from the beginning. Can anyone advise.
User Model
public function updates()
{
return $this->hasMany('App\update');
}
/**
* User following relationship
*/
// Get all users we are following
public function follow()
{
return $this->belongsToMany('App\User', 'user_follows', 'user_id', 'follow_id')->withTimestamps()->withPivot('id');;;
}
// This function allows us to get a list of users following us
public function followers()
{
return $this->belongsToMany('App\User', 'user_follows', 'follow_id', 'user_id')->withTimestamps();;
}
}
Update Model
public function user_update()
{
return $this->belongsTo('App\User');
}
Thank you.
Since you want the posts, it is probably going to be easier starting a query on the Post model, and then filter the posts based on their relationships.
Assuming your Post model has an author relationship to the User that created the post, and the User has a follower relationship to all the Users that are following it, you could do:
$userId = Auth::user()->id;
$posts = \App\Post::whereHas('author.follower', function ($q) use ($userId) {
return $q->where('id', $userId);
})
->latest() // built in helper method for orderBy('created_at', 'desc')
->get();
Now, $posts will be a collection of your Post models that were authored by a user that is being followed by your authenticated user.
In the documentation of Eloquent it is said that I can pass the keys of a desired relationship to hasManyThrough.
Lets say I have Models named Country, User, Post. A Country model might have many Posts through a Users model. That said I simply could call:
$this->hasManyThrough('Post', 'User', 'country_id', 'user_id');
This is fine so far! But how can I get these posts only for the user with the id of 3 ?
Can anybody help here?
So here it goes:
models: Country has many User has many Post
This allows us to use hasManyThrough like in your question:
// Country model
public function posts()
{
return $this->hasManyThrough('Post', 'User', 'country_id', 'user_id');
}
You want to get posts of a given user for this relation, so:
$country = Country::first();
$country->load(['posts' => function ($q) {
$q->where('user_id', '=', 3);
}]);
// or
$country->load(['posts' => function ($q) {
$q->has('user', function ($q) {
$q->where('users.id', '=', 3);
});
})
$country->posts; // collection of posts related to user with id 3
BUT it will be easier, more readable and more eloquent if you use this instead:
(since it has nothing to do with country when you are looking for the posts of user with id 3)
// User model
public function posts()
{
return $this->hasMany('Post');
}
// then
$user = User::find(3);
// lazy load
$user->load('posts');
// or use dynamic property
$user->posts; // it will load the posts automatically
// or eager load
$user = User::with('posts')->find(3);
$user->posts; // collection of posts for given user
To sum up: hasManyThrough is a way to get nested relation directly, ie. all the posts for given country, but rather not to search for specific through model.
$user_id = 3;
$country = Country::find($country_id);
$country->posts()->where('users.id', '=', $user_id)->get();
$this->hasManyThrough('Post', 'User', 'country_id', 'user_id')->where(column,x);
What happen here is you get the collection in return you can put any condition you want at the end.
I'm wondering it would be possible to add a where condition to a with.
Such as:
Comment::with('Users')->where('allowed', 'Y')->get();
I was trying to find a more simple way to make queries avoiding the whereHas method which looks quite verbose:
$users = Comment::whereHas('users', function($q)
{
$q->where('allowed', 'Y');
})->get();
The raw query I want internally to generate should be like so:
select * from comments, users
where users.id = comments.user_id and
users.allowed = 'Y'
I'm used to work with CakePHP in which this queries look very simple:
$this->Comments->find('all', array('Users.allowed' => 'Y'));
The relationships I have defined are:
//Comments.php
public function Users()
{
return $this->belongsTo('Users');
}
//Users.php
public function Comments(){
return $this->hasMany('Comments');
}
You may try this
$users = User::with(array('comments' => function($q)
{
$q->where('attachment', 1);
}))->get();
Update : Alternatively you may use a where clause in your relationship in your User model
// Relation for comments with attachment value 1
// and if hasMany relation is used
public function commentsWithAttachment()
{
return $this->hasMany('Comment')->where('attachment', 1);
}
// Relation for all comments
// and if hasMany relation is used
public function comments()
{
return $this->hasMany('Comment');
}
So, you can just use
// Comments with attachment value 1
User::with('commentsWithAttachment')->get();
// All comments
User::with('comments')->get();
Update : I think you want all comments with users where attachment is 1, if this what you want then it should be Comment not User
Comment::with('user')->where('attachment', 1)->get();
In this case your relation should be
public function user()
{
return $this->belongsTo('User'); // if model name is User
}
Because one comment belongs to only one user.