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
Related
I'm trying to create a function in our Laravel 5.8 app that would add multiple records to a pivot table. At present we have the following setup;
Users
Training Courses
Users Training Courses (pivot table for the above relationships, with a few extra fields)
I want to be able to show all users in the database, then check their name, pick a training course and hit "Add" and it'll create a record in the pivot table for each user that was selected.
I can't figure out where to start with this - it seems like I need to have a "for each user selected, run the store function" loop in the controller, but I have no idea where to start.
I wasn't sure if there was an easy way to do this in eloquent or not. Is there a simple way to do this?
Eloquent does this automatically if you set up the relationships correctly and you don't have to worry about pivot tables.
class Users
{
public function trainingCourses()
{
return $this->hasMany(TrainingCourses::class);
}
}
class TrainingCourses
{
public function user()
{
return $this->belongsTo(User::class);
}
}
Then you can use the save() method to create the relationship. But I find it better to wrap this function inside a helper method that you can use throughout your code:
class Users
{
...
public function assignTrainingCourse(TrainingCourse $trainingCourse)
{
return $this->trainingCourses()->save($trainingCourse);
}
}
In your code, you could then do something as simple as this:
$user = User::find(1);
$trainingCourse = TrainingCourse::find(1);
$user->assignTrainingCourse($trainingCourse);
Building on this, suppose you have the following route to assign a training course, where it expects a trainingcourse_id in the request:
Route::post('/users/{user}/trainingcourses', 'UserTrainingCoursesController#store');
Thanks to route model binding, Laravel can inference the parent model (user) from the URL, and your controller might look like this:
// UserTrainingCoursesController.php
public function store(User $user)
{
$trainingCourse = TrainingCourse::find(request()->input('trainingcourse_id'));
$user->assignTrainingCourse($trainingCourse);
return back();
}
Of course, you'll want to put some validation in here, but this should get you started.
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;
I have a user model, and I want to check if a user has been assigned a mentor.
public function mentorapplication()
{
return $this->hasMany(mentorApplication::class, 'user_id');
}
public function mentorAssigned()
{
return ($this->mentorapplication()->status == "counsellorAssigned");
}
when I call $user->mentorAssigned() in tinker I get an undefined property for status.
Any ideas?
A couple of things here. Firstly, your relationship is has-many, which is one-to-many. When you try to use the relationship you should expect a Collection to be returned, rather than a single entity. Therefore trying to access the ->status property on returned collection won't work.
Secondly, when you're trying to access the relationship like this:
$this->mentorapplication()
You will get a HasMany instance, which would allow you to chain on more constraints to the query, just like ->where(...), or ->orderBy(...). You would need to use something like ->get() or ->first() to actually run the query and get the results you're after. You can omit the () here and Laravel will load the relation for you, returning your collection:
$this->mentorapplication
Now, I don't know exactly what it is you're trying to achieve, but say for instance you wanted to see if at least one of the mentorApplication objects assigned to the user has a status of counsellorAssigned, you could do something like this:
public function mentorAssigned()
{
foreach ($this->mentorapplication as $mentorapplication) {
if ($mentorapplication->status == 'counsellorAssigned') {
return true;
}
}
return false;
}
Or you could use Laravel's Collection methods to help you rather than just doing a loop here. There are many approaches you could take so I will just leave it there.
I'm rather new to Laravel 4 and can't seem to find the right answer, maybe you can help:
A User in our application can have many Accounts and all data is related to an Account, not a User. The account the User is currently logged into is defined by a subdomain, i.e. accountname.mydomain.com.
We added a method account() to our User model:
/**
* Get the account the user is currently logged in to
*/
public function account()
{
$server = explode('.', Request::server('HTTP_HOST'));
$subdomain = $server[0];
return Account::where('subdomain', $subdomain)->first();
}
The problem is that there is always an extra query when we now use something like this in our view or controller:
Auth::user()->account()->accountname
When we want to get "Products" related to the account, we could use:
$products = Product::where('account_id', Auth::user()->account()->id)->get();
And yet again an extra query...
Somehow we need to extend the Auth::user() object, so that the account data is always in there... or perhaps we could create a new Auth::account() object, and get the data there..
What's the best solution for this?
Thanks in advance
Just set it to a session variable. This way, you can check that session variable before you make the database call to see if you already have it available.
Or instead of using ->get(), you can use ->remember($minutes) where $minutes is the amount of time you wish to keep the results of the query cached.
You should take a look at Eloquent relationships : http://laravel.com/docs/eloquent#relationships
It provides simple ways to get the account of a user and his products. You said that a user can have many accounts but you used a first() in your function I used a hasOne here.
Using Eloquent relationships you can write in your User model:
<?php
public function account()
{
// I assume here 'username' is the local key for your User model
return $this->hasOne('Account', 'subdomain', 'username');
}
public function products()
{
// You should really have a user_id in your User Model
// so that you will not have to use information from the
// user's account
return $this->hasMany('Product', 'account_id', 'user_id');
}
You should define the belongsTo in your Account model and Product model.
With Eager Loading you will not run a lot of SQL queries : http://laravel.com/docs/eloquent#eager-loading
You will be able to use something like
$users = User::with('account', 'products')->get();
To get all users with their account and products.
I think this is a good example for the purpose of Repositories.
You shouldn't query the (involved) models directly but wrap them up into a ProductRepository (or Repositories in general) that handles all the queries.
For instance:
<?php
class ProductRepository
{
protected $accountId;
public function __construct($accountId)
{
$this->accountId = $accountId;
}
public function all()
{
return Product::where('account_id', $this->accountId)->get();
}
}
//now bind it to the app container to make it globaly available
App::bind('ProductRepository', function() {
return new ProductRepository(Auth::user()->account()->id);
});
// and whenever you need it:
$productRepository = App::make('ProductRepository');
$userProducts = $productRepository->all();
You could group the relevant routes and apply a filter on them in order to bind it on each request so the account-id would be queried only once per repository instance and not on every single query.
Scopes could also be interesting in this scenario:
// app/models/Product.php
public function scopeCurrentAccount($query)
{
return $query->where('account_id', Auth::user()->account()->id);
}
Now you could simply call
$products = Product::currentAccount()->get();
I have a table 'sits' and it has user_id and sitter_id columns.
Inside of my User model, I have the following functions that all work perfectly and return almost everything I need.
public function mySits()
{
return $this->hasMany('Sit', 'sitter_id');
}
public function openSits()
{
return $this->hasMany('Sit')->where('sitter_id', '=', '0');
}
They work perfectly and returns almost everything I need. I say almost because what I need to do is reference the users table to get the name of the Sitter.
In the sits table, the sitter_id maps to id in the users table which has a name field.
Can I add something to the return data in the User model methods, or would I need do something in my controller.
$user = User::find(1)->load('mySits', 'openSits');
Just create a User relationship inside your Sit model. Then access it via $sit->user->name or similar.