this is my User.php relation code
public function activities()
{
return $this->hasMany(Activities::class, 'builder');
}
and this is my query to get only relation data
return User::whereHas('activities', fn($query) => $query->where('user_id', 1))
->paginate();
but it returns only user data without appling any relation, and its pagination not get to use pluck
i have also tried this
User::where('username', request()->username)->has('activities')->paginate();
but i need only get relation data not user with relation, and i prefer do it with whereHas
You need to create reverse relation for Activities model:
class Activities extends Model
{
// ...
public function user(): BelongsTo
{
return $this->belongsTo(User::class, 'user_id');
}
}
And get all the activities using Activities builder:
$paginated = Acitivities::query()
->whereHas('user', static function(Builder $userQuery) {
$userQuery->where('name', request()->username); // Think about security!
})
->paginate();
Note: All the models must be named in singular (e.g. Activity, User, Product and etc.).
Related
I have two tables, users and profiles. A user has one profile. Also a user has referrals. The referrals are referenced by the column referrer_id in the users' table. So a user has a referrer, and a user can have many referrals.
Define a one-to-one relationship on the User's Model:
public function profile()
{
return $this->hasOne(Profile::class);
}
Define an inverse one-to-one relationship on the User's Model:
public function referrer()
{
return $this->belongsTo(User::class);
}
Define a one-to-many relationship on the User's Model:
public function referrals()
{
return $this->hasMany(User::class, 'referrer_id');
}
Define an inverse one-to-one or many relationship on the Profile's Model:
public function user()
{
return $this->belongsTo(User::class);
}
I wish to retrieve the user's profile, the user's referrals along with their profiles, and the referrals' referrals along with a count of each of the referrals' referrals.
The following Eloquent query works, but doesn't paginate:
namespace App\Http\Controllers;
class ReferralsController extends Controller
{
public function index(Request $request)
{
return $request->user()->loadMissing(['profile', 'referrals' => function ($query) {
$query->with(['profile', 'referrals'])->withCount('referrals');
}]);
}
}
I've tried to add ->paginate() to the query (on both as show below and also one or the other) but it doesn't work:
return $request->user()->loadMissing(['profile', 'referrals' => function ($query) {
$query->with(['profile', 'referrals'])->withCount('referrals')->paginate(2);
}])->paginate(2);
Adding it to the inner function doesn't do anything, and adding it to the main query just retrieves the entire users table.
EDIT
I've realized that adding ->paginate() to the inner function actually does limit the number of rows in the collection, but there is no Paginator instance anywhere, so I don't have access to any of the links to move pages.
Got it to work by doing it separately:
$profile = $request->user()->profile()
->firstOrFail();
$referralsPaginator = $request->user()->referrals()
->with('profile')
->withCount('referrals')
->paginate(2);
I have a Group that has a many-to-many relationship with User. And each User can have multiple roles which I implement with spatie/larevel-permission
I am trying to retreive all Users attached to a Group that have a specific role, e.g. learner
this is what i have so far:
class Group extends Model
{
// other code
//
public function learners(){
return $this->users::whereHas('roles', function($q) {
$q->where('name', 'learner');
})->get();
}
// other code
public function users() {
return $this->belongsToMany(User::class)->withTimestamps();
}
}
And I get the error:
Illuminate\Database\Eloquent\Collection::whereHas does not exist
I understand that $this->users returns a Collection, and that's why I get that error message. But I'm not sure how else I could get the users of a group who have the 'learner' role.
You should be calling the relationship method users() which returns the Belongs To Many relationship not the dynamic property users which returns the result of the query for the relationship (Collection). Also you could make the learners method a relationship method itself instead of directly returning the result:
public function learners()
{
return $this->users()
->whereHas('roles', fn ($q) => $q->where('name', 'learner'));
}
$group->learners;
It all depends what you intend to do with this method.
I'm learning Laravel, and really OOP in general. I've followed several YouTube tutorial series, that teach you to create a blog in Laravel.
I'm building a task app for a brewery, and I'm trying to define the relationships between the users and the tasks. So I have two models: User.php and Task.php. I had no problem defining the user in a hasMany tasks relationship, and reciprocally, a task belongsTo a user. Where I'm confused is that I'd like to also have a user belong to the task as well. I have two MySQL columns, one with the heading of "user_id" and the other with "user_assigned_id". What I want is that a user has many tasks, but a task also has one assigned user, the idea being that the user that created the task might assign the task to another user. I've found several tutorials on creating relationships between three models, such as a user owning several messages, but only having one address, so I figured that I could just treat two models as if they were three models and connected the User model back to the Task model in a hasOne relationship, but I'm having a really hard time passing that through to the Controller and View.
Here is the relevant code in each file:
User.php
public function tasks()
{
return $this->hasMany('App\Task');
}
Task.php
public function user()
{
return $this->belongsTo('App\User');
}
// Added an user_assigned_id relationship
public function user_assigned()
{
return $this->hasOne('App\User', 'name', 'user_assigned_id');
}
DashboardController.php
public function index()
{
$user_id = auth()->user()->id;
$now = Carbon::now();
$tasks_assigned = Task::orderBy('date', 'asc')->whereDate('date', '>=', $now)->where('user_assigned_id', '=', $user_id)->user_assigned()->where('name', '=', 1)->get();
$tasks_created = Task::orderBy('date', 'asc')->whereDate('date', '>=', $now)->where('user_id', '=', $user_id)->get();
return view('dashboard')->with('tasks_assigned', $tasks_assigned)->with('tasks_created', $tasks_created);
}
I've gotten a bit turned around in the Controller, so I'm not sure if I messed something up there. Basically, I'm getting results from tasks owned by the logged in user, but not assigned to the logged in user.
You can just add a second relationship defined on your Task.php Model and assign a different agent based on user_assigned_id. You can manipulate it as expected via Eloquent.
Task.php
public function user() {
return $this->belongsTo('App\User');
}
public function assignedUser() {
return $this->belongsTo('App\User', 'user_assigned_id');
}
Then on DashboardController.php
$tasks_assigned = Task::orderBy('date', 'asc')->whereDate('date', '>=', $now)->where('user_assigned_id', '=', $user_id)->get();
should work
public function user()
{
return $this->belongsTo('App\User');
}
// Added an user_assigned_id relationship
public function assignee()
{
return $this->belongsTo('App\User', 'user_assigned_id');
}
The relationship is still a belongsTo, you just need to provide the column where the foreign key is held.
Other files:
User.php
public function ownedTasks()
{
return $this->hasMany('App\Task');
}
public function assignedTasks()
{
return $this->hasMany('App\Task', 'user_assigned_id');
}
Dashboard Controller
public function index()
{
$now = Carbon::now();
$tasks_assigned = Auth::user()->assignedTasks()->where('date', '>=', $now)->get();
$tasks_created = Auth::user()->ownedTasks()->where('date', '>=', $now)->get();
return view('dashboard')->with(compact('tasks_assigned', 'tasks_created'));
}
I'm trying to retrieve related models of the same type on from a pivot table.
I have 2 models, App\Models\User and App\Models\Group and a pivot model App\Pivots\GroupUser
My tables are have the following structure
users
id
groups
id
group_user
id
user_id
group_id
I have currently defined relationships as
In app/Models/User.php
public function groups()
{
return $this->belongsToMany(Group::class)->using(GroupUser::class);
}
In app/Models/Group.php
public function users()
{
return $this->belongsToMany(User::class)->using(GroupUser::class);
}
In app/Pivots/GroupUser.php
public function user()
{
return $this->belongsTo(User::class);
}
public function group()
{
return $this->belongsTo(Group::class);
}
I'm trying to define a relationship in my User class to access all other users that are related by being in the same group. Calling it friends. So far I've tried this:
app/Models/User.php
public function friends()
{
return $this->hasManyThrough(
User::class,
GroupUser::class,
'user_id',
'id'
);
}
But it just ends up returning a collection with only the user I called the relationship from. (same as running collect($this);
I have a solution that does work but is not ideal.
app/Models/User.php
public function friends()
{
$friends = collect();
foreach($this->groups as $group) {
foreach($group->users as $user) {
if($friends->where('id', $user->id)->count() === 0) {
$friends->push($user);
}
}
}
return $friends;
}
Is there a way I can accomplish this using hasManyThrough or some other Eloquent function?
Thanks.
You can't do that using hasManyThrough because there is no foreign key on the users table to relate it to the id of the group_user table. You could try going from the user to their groups to their friends using the existing belongsToMany relations:
app/Models/User.php:
// create a custom attribute accessor
public function getFriendsAttribute()
{
$friends = $this->groups() // query to groups
->with(['users' => function($query) { // eager-load users from groups
$query->where('users.id', '!=', $this->id); // filter out current user, specify users.id to prevent ambiguity
}])->get()
->pluck('users')->flatten(); // massage the collection to get just the users
return $friends;
}
Then when you call $user->friends you will get the collection of users who are in the same groups as the current user.
I'm trying to do eager loading using with() method, I only want to get selected column from relations relation, how can I do that ? . I'm using polymorphic relation.
Draft::with(["user:id,username","article:id,locale","article.articleable:title"])->where([
["user_id",$user_id],
["is_suspended",1]
])->get();
Draft Model
public function article()
{
return $this->belongsTo("App\Models\Article");
}
Article Model
public function drafts()
{
return $this->hasMany("App\Models\Draft", "article_id", "id");
}
public function articleable()
{
return $this->morphTo();
}
other models which has polymorphic relation with Article model
public function articles()
{
return $this->morphMany("App\Models\Article", "articleable");
}
This has been fixed in Laravel 5.7.6: https://github.com/laravel/framework/pull/25662
In order for this to work, you also have to select the id column:
Draft::with('user:id,username', 'article:id,locale', 'article.articleable:id,title')
^^
->where([
['user_id', $user_id],
['is_suspended', 1]
])->get();