I am using Laravel 8.X and eloquent to develop a web app.
I have a pivot table 'portal_event_users'
I am trying to add a belongsToMany relationship to the portal_users in the model of portal_event_users table.
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class EventUser extends Model
{
use HasFactory;
protected $table = 'portal_event_users';
public function users()
{
return $this->belongsToMany(User::class);
}
public function events()
{
return $this->belongsToMany(Event::class);
}
}
I have the following statements in the controller
$eventusersobj = \App\Models\EventUser::select('*')
->where('event_id', '=', $event_id)
->get();
$response = $eventusersobj->users->keyBy('id');
It is returning the following error
Property [users] does not exist on this collection instance.
Can someone please advice on how can i change this error?
Thanks in advance
As it returns a collection, you can use pluck()
$eventusersobj->pluck('users')->each(function($user){
$user->keyBy('id');
})
Related
My code is:
App\Models\Client.php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Client extends Model
{
protected $guarded = ['id'];
public function transactions()
{
return $this->hasMany('App\Models\Transaction','clients_id');
}
}
App\Models\Transaction.php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Transaction extends Model
{
protected $guarded = ['id'];
public function clients()
{
return $this->belongsTo('App\Models\Client','clients_id');
}
}
In controller i tried
use App\Models\Client;
use App\Models\Transaction;
Client::with('transactions')->orderBy('id', 'desc')->get();
but it's not working as expected
Thanks in Advance
To get all clients in desc order with your transactions using
$clients = Client::with('transactions')->orderBy('id', 'desc')->get();
returns all clients which has 1 or more transactions. By your mention in above comments "It returns all of the clients despite having zero transaction records" below query will not do that
$clients = Client::has('transactions')->orderBy('id', 'desc')->get();
or
$clients = Client::has('transactions', '>=', 0)->orderBy('id', 'desc')->get(); // you can add any number in place of zero
It is all given in the docs
I want to create a relation between lising and attribute table in laravel for that i have used following code to establish relationship between them but the data in my view is not coming from both the tables. I'm getting following error:
Call to undefined relationship [adListAttributes] on model
[App\Models\AdListing].
Here listing can have as many attribute associated with and attributes
can be associated to many listings
ad_listings:
id
title
name
date
ad_list_attributes table :
id
listing_id
name
namespace App\Models;
use Eloquent;
use Illuminate\Database\Eloquent\Model;
class AdListAttribute extends Model
{
protected $table = "ad_list_attributes";
public function Listings()
{
return $this->belongsToMany('AdListing', 'id', 'listing_id');
}
}
namespace App\Models;
use Eloquent;
use Illuminate\Database\Eloquent\Model;
class AdListing extends Model
{
protected $table = "ad_listings";
public function Attributes()
{
return $this->belongsToMany('AdListAttribute', 'listing_id', 'id');
}
}
Problem is that you are using belongsToMany in both the models.This will cause a problem.
In AdListAttribute model,
public function listing_information()
{
return $this->belongsTo('App\AdListing', 'id', 'listing_id');
}
In AdListing model,
public function adlisting_attributes()
{
return $this->hasMany('App\AdListAttribute', 'listing_id', 'id');
}
You can get the results using,
$response = AdListing::get();
if($response->adlisting_attributes)
{
foreach($response->adlisting_attributes as $attribute)
{
echo $attribute->name;
}
}
Problem is that ur not calling the relationship with the right name i assume
$listings = AdListing::with('Attributes')->get();
Update :
Try this :
use App\Models\AdListAttribute;
//
return $this->belongsToMany(AdListAttribute::class, 'listing_id', 'id');
Same for other model, then try
I'm trying to get soft deleting work on laravel voyager but everytime I delete a post it's also deleted in my database.
here is my post model :
<?php
namespace App;
use TCG\Voyager\Traits\Resizable;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use App\Category;
class Post extends Model
{
use Resizable;
use SoftDeletes;
protected $dates = ['deleted_at'];
public function category()
{
return $this->belongsTo(Category::class);
}
public function scopeIspublished($query)
{
return $query->where('status','published');
}
}
I added a column deleted_at to my posts table as well.
Thanks for helping
So I have two tables: posts and categories. It is a many-to-many relationship: A post has many categories and a category belongs to many posts.
Here are the models that describe their relationships:
Category.php
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Category extends Model
{
protected $fillable = ['name', 'slug'];
public function posts()
{
return $this->belongsToMany('App\Post');
}
}
Post.php
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
public function categories()
{
return $this->belongsToMany('App\Category');
}
}
I want to get all posts that have a particular category: tips
Here is what I tried:
$tips = Category::where('name', 'Tips')->posts()->with('categories')->take(4)->get();
I don't know the level of ignorance in this query, but I honestly expected it to work. It didn't.
I'll appreciate any help.
It's really as simple as:
$tipsCategory = Category::where('name', 'tips')
->get();
$posts = $tipsCategory->posts;
How can withTrashed be applied on a hasManyThrough relation ?
$this->hasManyThrough('App\Message', 'App\Deal')->withTrashed();
returns
Call to undefined method Illuminate\Database\Query\Builder::withTrashed()
when i'm doing:
$messages = Auth::user()->messages()->with('deal')->orderBy('created_at', 'DESC')->get();`
Here is my Deal model:
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
class Deal extends Model
{
use SoftDeletes;
/* ... */
protected $dates = ['deleted_at'];
public function user() {
return $this->belongsTo('App\User');
}
public function messages() {
return $this->hasMany('App\Message'); // I've tried to put withTrashed() here, there is no error but it doesn't include soft deleting items.
}
}
To all those coming to this late, there is now a native way of doing this with Laravel.
$this->hasManyThrough('App\Message', 'App\Deal')->withTrashedParents();
This is not well documented but can be found in Illuminate\Database\Eloquent\Relations\HasManyThrough
The error is thrown because you are requesting a messages with deleted ones without using SoftDelete trait in Message model.
After I check the hasManyThrough relation code I found that there is no way to do it in this way, you should play around.
Ex:
get the deals of user with messages instead
$deals = Auth::user()->deals()->withTrashed()->with('messages')->get();
foreach($deals as $deal) {
//Do your logic here and you can access messages of deal with $deal->messages
}