Answers for "laravel many to many relationship"

PHP
5

many to many relationship laravel

// in User model:
<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    /**
     * The roles that belong to the user.
     */
    public function roles()
    {
        return $this->belongsToMany('App\Role');
    }
}

// in Role model:
<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Role extends Model
{
    /**
     * The users that belong to the role.
     */
    public function users()
    {
        return $this->belongsToMany('App\User')->using('App\UserRole');
    }
}
Posted by: Guest on October-13-2021
4

whereHas site:https://laravel.com/docs/

use Illuminate\Database\Eloquent\Builder;

// Retrieve posts with at least one comment containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
    $query->where('content', 'like', 'code%');
})->get();

// Retrieve posts with at least ten comments containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
    $query->where('content', 'like', 'code%');
}, '>=', 10)->get();
Posted by: Guest on December-17-2020
7

belongs to many laravel

For example, a blog post may have an infinite number of comments. And a single
comment belongs to only a single post  

class Post extends Model
{
    public function comments()
    {
        return $this->hasMany('App\Models\Comment');
    }
}

class Comment extends Model
{
    public function post()
    {
        return $this->belongsTo('App\Models\Post');
    }
}
Posted by: Guest on October-16-2020
1

laravel one to many relationship example

$user->roles()->attach($roleIds);
$user->roles()->detach($roleIds);
$user->roles()->sync($roleIds);
$user->roles()->toggle($roleIds);
Posted by: Guest on September-13-2021
0

1 to many relationship in Laravel

class Post extends Model
{
   // 1 Post has many comments
    public function comments()
    {
        return $this->hasMany(Comment::class);
    }
}
Posted by: Guest on July-18-2021
0

laravel many to many relationship

/*
users
    id - integer
    name - string

roles
    id - integer
    name - string

role_user
    user_id - integer
    role_id - integer
*/

class User extends Model
{
    /**
     * The roles that belong to the user.
     */
    public function roles()
    {
      /*To determine the table name of the relationship's intermediate 
      table, Eloquent will join the two related model names in 
      alphabetical order. However, you are free to override this 
      convention. You may do so by passing a second argument to the 
      belongsToMany method*/
        return $this->belongsToMany(Role::class,'role_user');
    }
}
//Defining The Inverse Of The Relationship

class Role extends Model
{
    /**
     * The users that belong to the role.
     */
    public function users()
    {
        return $this->belongsToMany(User::class);
    }
}
Posted by: Guest on April-29-2021

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