I have these models with their related db tables,at the moment I can retrieve all the requirement
Requirement::all()
but I just have a list of foreigns key (destination_id,applier_id,doc_id). How can i retrieve directly the row connected to that foreigns key?
class Requirement extends Model
{
protected $fillable = [
'required',
'destination_id',
'applier_id',
'doc_id'
];
public function destination()
{
return $this->belongsTo(Destination::class);
}
public function applier()
{
return $this->belongsTo(Applier::class);
}
public function doc()
{
return $this->belongsTo(Doc::class);
}
}
class Doc extends Model
{
protected $fillable = [
'type',
'description',
'note'
];
public function requirements()
{
return $this->hasMany(Requirement::class);
}
}
class Destination extends Model
{
protected $fillable = [
'country',
'passying_country',
'transfer_conditions',
'passing_conditions'
];
public function requirements()
{
return $this->hasMany(Requirement::class);
}
}
You can call with() function instead of all(). So if you try this following :
$requirements = Requirement::with('destination', 'applier', 'doc')->get();
Make it dd($requirements) and look the output.
Hope it will work.
Related
Hey there stackoverflow
I am currently building a course application as part of my laravel project.
My problem lies in how the eloquent handle model relations, i'm still kinda new to eloquent, so hopefully you can answer my question.
The structure
The Course has many episodes and each episode has many sections.
Which means I have 3 tables in the DB. Courses -> course_episodes -> course_episode_sections
ID table is where i connect courses with users - course_users.
Right now i can create courses and and put in all the data correctly.
The Problem
I need to retrieve all the courses and its nested children that the user has bought, which is connected in the course_users table with columns course_id and user_id
Course structure
Same stucture in DB
course: {
name: null,
sub_title: null,
estimate: null,
trailer: null,
type: null,
text: null,
course_episodes: [
{
name: null,
section: [
{
order: null,
type: null,
content: null,
},
]
},
]
}
Model Pictures
My models as of right now.
class CourseUsers extends Model {
protected $fillable = [
'id',
'course_id',
'user_id',
'active',
];
protected $hidden = [
'deleted_at',
'updated_at',
'deleted_at'
];
public function courses()
{
return $this->belongsToMany(Course::class);
}
public function user(){
return $this->belongsTo(User::class);
}
public function scopeFindForUserId($query, $userId)
{
return $query->where(function ($q) use ($userId) {
$q->where(function ($q) use ($userId) {
$q->where('user_id', $userId);
});
});
}
Course model
class Course extends Model{
protected $fillable = [
'id',
'name',
'sub_title',
'type',
'estimate',
'trailer',
'gateway_id',
'text',
'active',
];
protected $hidden = [
'deleted_at',
'updated_at',
'deleted_at'
];
public function courseEpisode()
{
return $this->hasMany(CourseEpisode::class);
}
public function courseUsers() {
return $this->hasMany(CourseUsers::class);
}
public function scopeActive(Builder $builder)
{
return $builder->where('active', true);
}
Course episode Model
class CourseEpisode extends Model implements HasMedia {
use HasMediaTrait;
protected $fillable = [
'id',
'course_id',
'order',
'name',
];
protected $hidden = [
'deleted_at',
'updated_at',
'deleted_at'
];
public function course()
{
return $this->belongsTo(Course::class);
}
public function courseSection()
{
return $this->hasMany(CourseEpisodeSection::class);
}
Course episode sections
class CourseEpisodeSection extends Model {
protected $fillable = [
'id',
'course_episode_id',
'order',
'type',
'content'
];
protected $hidden = [
'deleted_at',
'updated_at',
'deleted_at'
];
public function courseEpisode()
{
return $this->belongsTo(CourseEpisode::class);
}
According to your explanation, course_users table holds many-to-many relationship between Course and User model. In case of a many-to-many relationship, you actually don't need a CourseUser model. This kind of table which holds many-to-many relationship is called pivot table. Read more from the Official Documentation
I am defining only the relationships with your Course, User, CourseEpisode, CourseEpisodeSection models.
Course.php
class Course extends Model
{
public function courseEpisodes()
{
return $this->hasMany(CourseEpisode::class);
}
public function users()
{
return $this->belongsToMany(User::class,'course_users')->withPivot('active');
}
}
CourseEpisode.php
class CourseEpisode extends Model
{
public function courseSections()
{
return $this->hasMany(CourseSection::class);
}
}
User.php
class User
{
public function courses()
{
return $this->belongsToMany(Course::class,'course_users')->withPivot('active');
}
}
If you want to get all the children relationships from a user, use nested eager loading :
$user_with_nested_course_data = User::with('courses.courseEpisodes.courseSections')->find($id);
I need to fetch some data from associated tables, but I can't deal with it. I have the following tables with functions.
Class User
{
public function lastGoals()
{
return $this->hasMany('App\UserGoals')->last()->with('data');
}
}
Class UserGoals
{
protected $fillable = [
'user_id', 'goal_id'
];
public function data()
{
return $this->hasOne('App\CreatorGoals', 'id', 'goal_id');
}
public function goalsBelong()
{
return $this->belongsTo('App\CreatorGoals', 'goal_id', 'id');
}
}
Class CreatorGoals
{
protected $fillable = [
'id', 'label', 'type'
];
public function scopeFront($query)
{
return $query->select('id', 'label', 'type')->where('is_front', 1);
}
}
I need to fetch all UserGoals with UserID and it's labels,
For now I have:
$data = User::user(Auth::guard('web')->user()->id)->with('lastGoals')->first();
I have a collection of users but I don't know to fetch the label of each user goal. I have tried:
$data->lastGoals->data->label;
$data->lastGoals->label;
$data->data->lastGoals->label;
But I still have errors. How can I fetch the label of each user goal?
i have relation between Service and Services_Gallery one to many, and i want to use id of Service when i insert new image to Services_Gallery, and this is my Controller:
public function save(Request $request)
{
$this->validate($request,[
'image' => 'required|image|mimes:jpeg,jpg,png,svg|max:1024'
]);
$services_Gallery = new Services_Gallery();
$services_Gallery->image = $request->image->move('Uploads', str_random('6') . time() . $request->image->getClientOriginalName());
$services_Gallery->Service::all(id) = $request->service_id; //The problem here
$services_Gallery->save();
return back();
}
this is my Models:
class Service extends Model
{
protected $table = 'services';
protected $fillable = [
'en_main_title',
'ar_main_title',
'en_sub_title',
'ar_sub_title',
'en_content_title',
'ar_content_title',
'en_content',
'ar_content',
'priority',
];
public function gallery()
{
return $this->hasMany('App\Services_Gallery','service_id');
}
}
class Services_Gallery extends Model
{
protected $table = 'services_galleries';
protected $fillable = [
'image',
'service_id',
];
public function gallery(){
return $this->belongsTo('App\Service','service_id');
}
}
Exapmle:
$modelOfService = Service::where('param_x', $request->service_id)->first();
$id = $modelOfService->id;
Is that you need?
I have two models:
Team
Game (Played between two games)
The Game model has two foreign keys pointing to the Team model - team1_id & team2_id.
Here's the code for Team model:
class Team extends Eloquent
{
protected $table = 'team';
protected $fillable = [
'name',
'color',
'year'
];
public function games()
{
return $this->hasMany(\App\Models\Game::class);
}
}
Code for Game model:
class Game extends Eloquent
{
protected $table = 'game';
protected $casts = [
'team1_id' => 'int',
'team2_id' => 'int'
];
protected $fillable = [
'team1_id',
'team2_id',
'location',
'start_at'
];
public function team1()
{
return $this->hasOne(\App\Models\Team::class, 'team1_id');
}
public function team2()
{
return $this->hasOne(\App\Models\Team::class, 'team2_id');
}
}
I get an error saying the column could not be found.
return $this->hasMany(\App\Models\Game::class, 'team1_id');
This works, but the problem is that I want to get games depending on both team1_id and team2_id.
You had to specify the foreign key and the local key you use to reference that relation
public function localTeam()
{
return $this->belongsTo(\App\Models\Team::class, 'id', 'team1_id');
}
public function foreignTeam()
{
return $this->belongsTo(\App\Models\Team::class, 'id', 'team2_id');
}
I want to response JSON with Laravel that I have CategoryModel belongTo SongModel.
This is my CategoryModel
class CategoryModel extends Model
{
protected $table = 'categories';
protected $fillable = [
'id',
'name',
];
public function song()
{
return $this->hasMany(SongModel::class);
}
}
And this is my SongModel
class SongModel extends Model
{
protected $table = 'songs';
protected $fillable = [
'id',
'name',
'url',
'categories_id',
'singers_id',
'types_id',
];
public function category()
{
return $this->belongsTo(CategoryModel::class);
}
}
I want to response JSON with the relationship. I wrote:
class SongController extends Controller
{
public function index(SongModel $songModel)
{
$song = $songModel->category()->get();
return response()->json(["DATA" => $song], 201);
}
}
To do this you will just need to load the relationship before you return the response:
public function index(SongModel $songModel)
{
$songModel->load('category');
return response()->json(["DATA" => $songModel], 201);
}
https://laravel.com/docs/5.4/eloquent-relationships#lazy-eager-loading
Hope this helps!
Try this. return response()->json(["DATA" => $songModel->load('category')->toArray()], 201);
OR, you can use with('song')
lass SongController extends Controller
{
public function index(SongModel $songModel)
{
$song = $songModel::with('song')->get();
return response()->json(["DATA" => $song], 201);
}
}