Laravel : Trouble with belongs to into the same model - laravel

I have this model
When I try to reach the author's informations, I have
"Undefined property: Illuminate\Database\Eloquent\Relations\BelongsTo::$id"
"
class PostSignal extends BaseModel {
protected $fillable = [];
public function send($data)
{
$data['userid'] = $this->author()->id;
}
public function author()
{
return $this->belongsTo('User', 'user_id');
}
}
My user model is classic:
use Illuminate\Auth\UserTrait;
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableTrait;
use Illuminate\Auth\Reminders\RemindableInterface;
class User extends BaseModel implements UserInterface, RemindableInterface {
use UserTrait, RemindableTrait;
/**
* The database table used by the model.
*
* #var string
*/
protected $table = 'users';
/**
* The attributes excluded from the model's JSON form.
*
* #var array
*/
protected $hidden = array('password', 'remember_token');
protected $fillable = ['username', 'email', 'password', 'last_connection', 'gravatar'];
/**
* Generate gravatar image
*
* #param integer $size Size of the image
*
* #return string Image
*/
public function gravatar($size = 32)
{
$email = md5($this->email);
return "//www.gravatar.com/avatar/{$email}?s={$size}";
}
public function Posts()
{
return $this->hasMany('BlogPost');
}
public function Comments()
{
return $this->hasMany('BlogPostComment');
}
public function signal()
{
return $this->hasmany('PostSignal');
}
}

Related

Display 2 types of data in Laravel

I have 2 types of user Athletes and Teams. I created 3 tables users,athletes & teams. I am storing username & password in users table and others information in athletes & teams table. I would like to display Athletes and Teams information in home page.
My User model is like below
<?php
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $guarded = [];
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = ['password', 'remember_token',];
protected $fillable = ['email','password','remember_token','category_id'];
public function team()
{
return $this->hasOne(Team::class);
}
public function athlete()
{
return $this->hasOne(Athlete::class);
}
}
My Team model is like below
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Team extends Model
{
public $guarded = [];
protected $fillable = ['first_name','last_name','user_id','how_did_find','social_media',];
public function user()
{
return $this->belongsTo(User::class);
}
}
My Athlete model is like below
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Athlete extends Model
{
public $guarded = [];
protected $fillable = ['user_id','social_media','youtube_video','website'];
public function user()
{
return $this->belongsTo(User::class);
}
}
I am using below code in controller.
$staff_picks = User::orderBy('id','desc')->take(10)->with('athlete','team')->get();
This is how it should be
class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $guarded = [];
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = ['password', 'remember_token',];
protected $fillable = ['email','password','remember_token','category_id'];
public function team()
{
return $this->hasOne(Team::class);
}
public function athlete()
{
return $this->hasOne(Athlete::class);
}
}
class Team extends Model
{
public $guarded = [];
protected $fillable = ['first_name','last_name','user_id','how_did_find','social_media',];
public function user()
{
return $this->belongsTo(User::class);
}
}
class Athlete extends Model
{
public $guarded = [];
protected $fillable = ['user_id','social_media','youtube_video','website'];
public function user()
{
return $this->belongsTo(User::class);
}
}
And the query
$staff_picks = User::orderBy('id','desc')->take(10)->with('athlete','team')->get();
And the iteration
foreach($staff_picks as $r){
$r->teams->social_media; //(user can be either teams or athletes so must check for null)
$r->athletes->social_media; //(user can be either teams or athletes so must check for null)
}
In athlete & team model create a column called user_id and in user model create two methods as hasMany relation for athletes and teams models.
After login get the data as
User::where('id', 1)->with('teams', 'athletes')->first();
Relations inside User modal can be written as below.
teams() {
return $this->hasMany(Team::class);
}
athletes() {
return $this->hasMany(Athlete::class);
}

Eloquent model inheritance hierarchy

I have a case where 2 eloquent models should inherit properties from a User model, but the User itself should not exist as a standalone instance. (Mentors and Students, both inherit from User class). So what I'm currently doing is:
<?php
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
abstract class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'name', 'email', 'password',
];
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = [
'password', 'remember_token',
];
/**
* Get the courses that the user has enrolled into
*
* #return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function courses()
{
return $this->hasMany('App\Models\Course', 'user_course', 'user_id', 'course_id');
}
}
class Student extends User
{
protected $table = 'students';
/**
* Get the mentors that the user has hired
*
* #return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function mentors()
{
return $this->hasMany('App\Models\User');
}
}
class Mentor extends User
{
protected $table = 'mentors';
/**
* Get a list of courses that a mentor is teaching
*
* #return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function ownCourses()
{
return $this->hasMany('App\Models\Course', 'mentor_course', 'mentor_id', 'course_id');
}
}
I am wondering whether this is the correct to do what I am trying to accomplish?
IMHO I will use polymorhic relation:
Use three tables: users, students and mentors; in the users table add two fields: userable_id (integer), userable_type (string).
User model
class class User extends Authenticatable
{
public function userable()
{
return $this->morphTo();
}
Student model:
class Student extends Model
{
public function user()
{
return $this->morphOne('App\User', 'userable');
}
Mentor model:
class Mentor extends Model
{
public function user()
{
return $this->morphOne('App\User', 'userable');
}
Now User::find($id)->userable return a Student or a Mentor object depending on the value of the userable_type
I leave the others relations to you, I hope this helps.

ReflectionException in CommanderTrait.php line 59: Class App\FollowUserCommand does not exist

I Was following Laracasts video for creating follow option but when I'm clicking on Follow button on members page it is showing the above error. This is my followcontroller
<?php
namespace App\Http\Controllers;
use App\User;
use Laracasts\Commander\CommanderTrait;
use App\FollowUserCommand;
use Sentinel;
use Illuminate\Support\Facades\Input;
use App\Http\Requests;
use App\Http\Controllers\Controller;
class FollowsController extends Controller
{
use CommanderTrait;
/**
* Follow a User
*
* #param \Illuminate\Http\Request $request
* #return \Illuminate\Http\Response
*/
public function store()
{
$input = array_add(Input::all(), 'user_id', Sentinel::getuser()->id);
$this->execute(FollowUserCommand::class, $input);
return Redirect::back();
}
/**
* Unfollow a User
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function destroy($id)
{
//
}
}
This is my FollowUserCommand
<?php namespace App\User;
class FollowUserCommand {
public $user_id;
public $userIdToFollow;
function __construct($user_id, $userIdToFollow)
{
$this->user_id = $user_id;
$this->userIdToFollow = $userIdToFollow;
}
}
FollowUserCommandHandler
<?php namespace App;
use Laracasts\Commander\CommandHandler;
class FollowUserCommandHandler implements CommandHandler {
protected $userRepo;
function __construct(UserRepository $userRepo)
{
$this->userRepo = $userRepo;
}
public function handle($command)
{
$user = $this->userRepo->findById($command->user_id);
$this->userRepo->follow($command->userIdToFollow, $user);
return $user;
}
}
UserRepository
class UserRepository {
public function save(User $user)
{
return $user->save();
}
public function getPaginated($howMany = 4)
{
return User::orderBy('first_name', 'asc')->paginate($howMany);
}
public function findByUsername($username)
{
return User::with(['feeds' => function($query)
{
$query->latest();
}
])->whereUsername($username)->first();
}
public function findById($id)
{
return User::findOrFail($id);
}
public function follow($userIdToFollow, User $user)
{
return $user->follows()->attach($userIdToFollow);
}
}
User.php
<?php namespace App;
use Cartalyst\Sentinel\Users\EloquentUser;
use Illuminate\Database\Eloquent\SoftDeletes;
class User extends EloquentUser {
/**
* The database table used by the model.
*
* #var string
*/
protected $table = 'users';
/**
* The attributes to be fillable from the model.
*
* A dirty hack to allow fields to be fillable by calling empty fillable array
*
* #var array
*/
protected $fillable = [];
protected $guarded = ['id'];
/**
* The attributes excluded from the model's JSON form.
*
* #var array
*/
protected $hidden = ['password', 'remember_token'];
/**
* To allow soft deletes
*/
use SoftDeletes;
protected $dates = ['deleted_at'];
// This function allows us to get a list of users following us
public function follows()
{
return $this->belongsToMany(self::class, 'follows', 'follower_id', 'followed_id')->withTimestamps();
}
// Get all users we are following
public function following()
{
return $this->belongsToMany('User', 'followers', 'user_id', 'follow_id')->withTimestamps();
}
}
Can anyone tell me why it is showing error even after "use App\FollowUserCommand;" has been declared in namespace.
Your namespace when declaring the FollowUserCommand class is wrong, it should be:
<?php namespace App;
class FollowUserCommand {...
And right now you have <?php namespace App\User;.

How to get the feeds of the user whom you are following

How to get the feeds of the user whom you are following. Right now I'm able to get the id of the user whom you are following but struggling to get the feeds of the following user. Followscontroller
<?php
namespace App\Http\Controllers;
use Redirect;
use App\User;
use Laracasts\Commander\CommanderTrait;
use App\FollowUserCommand;
use Sentinel;
use Illuminate\Support\Facades\Input;
use App\Http\Requests;
use App\Http\Controllers\Controller;
class FollowsController extends Controller
{
use CommanderTrait;
/**
* Follow a User
*
* #param \Illuminate\Http\Request $request
* #return \Illuminate\Http\Response
*/
public function store()
{
$input = array_add(Input::all(), 'user_id', Sentinel::getuser()->id);
$this->execute(FollowUserCommand::class, $input);
return Redirect::back();
}
/**
* Unfollow a User
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function destroy($id)
{
//
}
}
FollowUserCommand
<?php namespace App;
use App\User;
class FollowUserCommand {
public $user_id;
public $userIdToFollow;
function __construct($user_id, $userIdToFollow)
{
$this->user_id = $user_id;
$this->userIdToFollow = $userIdToFollow;
}
}
FollowUserCommandHandler
<?php namespace App;
use Laracasts\Commander\CommandHandler;
class FollowUserCommandHandler implements CommandHandler {
protected $userRepo;
function __construct(UserRepository $userRepo)
{
$this->userRepo = $userRepo;
}
public function handle($command)
{
$user = $this->userRepo->findById($command->user_id);
$this->userRepo->follow($command->userIdToFollow, $user);
return $user;
}
}
UserRepository
<?php namespace App;
use App\User;
class UserRepository {
public function save(User $user)
{
return $user->save();
}
public function getPaginated($howMany = 4)
{
return User::orderBy('first_name', 'asc')->paginate($howMany);
}
public function findByUsername($username)
{
return User::with(['feeds' => function($query)
{
$query->latest();
}
])->whereUsername($username)->first();
}
public function findById($id)
{
return User::findOrFail($id);
}
public function follow($userIdToFollow, User $user)
{
return $user->follows()->attach($userIdToFollow);
}
}
User.php
<?php namespace App;
use Cartalyst\Sentinel\Users\EloquentUser;
use Illuminate\Database\Eloquent\SoftDeletes;
class User extends EloquentUser {
/**
* The database table used by the model.
*
* #var string
*/
protected $table = 'users';
/**
* The attributes to be fillable from the model.
*
* A dirty hack to allow fields to be fillable by calling empty fillable array
*
* #var array
*/
protected $fillable = [];
protected $guarded = ['id'];
/**
* The attributes excluded from the model's JSON form.
*
* #var array
*/
protected $hidden = ['password', 'remember_token'];
/**
* To allow soft deletes
*/
use SoftDeletes;
protected $dates = ['deleted_at'];
public function feeds()
{
return $this->hasMany('App\Feed');
}
public function comment()
{
return $this->hasMany('App\Comment');
}
// This function allows us to get a list of users following us
public function follows()
{
return $this->belongsToMany(self::class, 'follows', 'follower_id', 'followed_id')->withTimestamps();
}
// Get all users we are following
public function following()
{
return $this->belongsToMany('User', 'followers', 'user_id', 'follow_id')->withTimestamps();
}
}
It should be fairly straightforward.
$user = User::with('following.feeds')->get();
foreach ($user->following as $followedUser) {
foreach ($followedUser->feeds as $feed) {
}
}
using sub query I am able to get like below. if some one needs other way, check the following code
$posts = Post::whereIn('user_id', function($query) use($id)
{
$query->select('leader_id')
->from('followers')
->where('follower_id', $id);
})->orWhere('user_id', $id)->latest()->paginate(10);

many-to-many relationschop in laravel eloquent does not work with pluck()

I have a many to many relationshhip between 2 tables in laravel.
I just want to get the name of the afdeling with user_id=45.
I tried
$afdelingen = User::find(45)->afdelingen->pluck('name');
but is does not work. It works without the pluck but then i get a long string:
[{"id":3,"afdelingen":"Personeelszaken","user_id":0,"pivot":{"user_id":45,"afdeling_id":3}}]
How can i just get
Model 1 code:
<?php
class Afdeling extends Eloquent {
protected $guarded = array();
public static $rules = array();
protected $connection = 'mysql2';
protected $table = 'afdelingen';
public function users(){
return $this->belongstoMany('User','afdeling_user','afdeling_id');
}
}
Model 2 code:
<?php
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableInterface;
class User extends Eloquent implements UserInterface, RemindableInterface {
/**
* The database table used by the model.
*
* #var string
*/
protected $connection = 'mysql2';
protected $table = 'users';
//public function safetyreports(){
// return $this->hasMany('Safetyreport');
//}
public function afdelingen(){
return $this->belongstoMany('Afdeling','afdeling_user','user_id');
}
/**
* The attributes excluded from the model's JSON form.
*
* #var array
*/
protected $hidden = array('password');
/**
* Get the unique identifier for the user.
*
* #return mixed
*/
public function getAuthIdentifier()
{
return $this->getKey();
}
/**
* Get the password for the user.
*
* #return string
*/
public function getAuthPassword()
{
return $this->password;
}
/**
* Get the e-mail address where password reminders are sent.
*
* #return string
*/
public function getReminderEmail()
{
return $this->email;
}
}
Since it's a many to many relationship, $afdelingen = User::find(45)->afdelingen->pluck('name'); will have a collection of afdelingen, not just one.
You can get the first one by using $afdelingen = User::find(45)->afdelingen()->first()->pluck('name');
Additionally, you can loop to grab all their names.
foreach(User::find(45)->afdelingen as $item) {
$afdelingen = $item->pluck('name');
}
Or if you want an array of the names...
$afdelingen = User::find(45)->afdelingen()->lists('name');

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