Retrieve many to many relation with laravel eloquent - mysql

Question

I'm trying to retrieve data from many to many relation grouped in one object for the duplicated date.
I have menu table and daily_mealz table and pivot table(menu_daily_mealz)
the problem is the daily_mealz contain duplicated date value in its date column but every raw contain different meal_id.
So, I need to retrieve one raw but contain all mealsIDs related to this date
I only retrieve with belongsTo relation and them for loop over the data to get the object I need.
Relations
public function dailyMeals(){
return $this->belongsToMany(DailyMeals::class, 'menu_daily_meals', 'menu_id', 'daily_meal_id');
}
public function menus(){
return $this->belongsToMany(Menu::class, 'menu_daily_meals', 'daily_meal_id', 'menu_id');
}
DataBase Structure
Menu table
+-----+----------------+
| id | name |
+-----+----------------+
| 1 | first menu |
| 2 | second menu |
+-----+----------------+
daily mealz table
+----+-------------+---------+-------+
| id | date | meal_id | stock |
+----+-------------+---------+-------+
| 1 | 2019-03-01 | 1 | 250 |
| | | | |
| 2 | 2019-03-01 | 2 | 100 |
| | | | |
| 3 | 2019-03-02 | 3 | 150 |
| | | | |
| 4 | 2019-03-02 | 4 | 70 |
| | | | |
| 5 | 2019-03-03 | 5 | 350 |
| | | | |
| 6 | 2019-03-03 | 6 | 180 |
+----+-------------+---------+-------+
Menu_daily_meals table
+----+---------+---------------+
| id | menu_id | daily_meal_id |
+----+---------+---------------+
| 1 | 1 | 1 |
| 2 | 1 | 2 |
| 3 | 1 | 3 |
| 4 | 1 | 4 |
| 5 | 1 | 5 |
| 6 | 1 | 6 |
| 7 | 2 | 3 |
| 8 | 2 | 5 |
| 9 | 2 | 6 |
+----+---------+---------------+
I need to retrieve object like that
{
"id": 1,
"name": "first menu",
"daily_meals": [
{
"id": 1,
"daily_date": "2019-03-01",
"meals" : [
{
"meal_id" : 1,
"stock" : 250
},
{
"meal_id" : 2,
"stock" : 100
},
]
},
{
"id": 2,
"daily_date": "2019-03-02",
"meals" : [
{
"meal_id" : 3,
"stock" : 150
},
{
"meal_id" : 4,
"stock" : 70
},
]
},
{
"id": 3,
"daily_date": "2019-03-03",
"meals" : [
{
"meal_id" : 5,
"stock" : 350
},
{
"meal_id" : 6,
"stock" : 180
},
]
}
]
}
Any Help, Please?

Answer 1

You should use load function to load external data to your model(use eager loading):
$menu=Menu::find(1);
$menu->load('dailyMeals','dailyMeals.meals');
Note : For hide pivot object in response add this code to your menu model:
protected $hidden = ['pivot'];
Note : You should have dailyMeals in your menu model and meals relation in your dailyMeals model
For more information You can Visit Laravel Document.