I have 4 tables in my database:
Table 1: Category
---|------
id | name
---|------
1 | Cars
In 'Category' model class I have defined the following relationship:
class Category {
public function fields() {
return $this->belongsToMany('App\Field');
}
}
Table 2: Field
id | name
---|-------
1 | Make
In 'Field' model class I have defined the following relationship:
class Field {
public function categories() {
return $this->belongsToMany('App\Category');
}
}
Table 3: Field_Options
field_id | value
---------|-------
1 | Audi
1 | BMW
In 'FieldOption' model class I have defined the following relationship:
class FieldOption extends Model
{
public function field() {
return $this->belongsTo('App\Field');
}
}
Table 4: Category_Field
category_id | field_id
------------|-------
1 | 1
Now I need to fetch all the fields and field_options for category_id=1. How can I achieve this using Laravel?
Thanks!
First define relationship between Field and FieldOptions
public function options() {
return $this->hasMany('App\FieldOption');
}
Then you can eager load all relationships like this
$category = Category::with('fields.options')->find(1);
//Get category 1, with all fields and their respectif fieldOptions
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.