wrong sql queries with laravel relation - mysql

Question

Here are my tables
Schema::create('badge_user', function (Blueprint $table) {
$table->id();
$table->foreignId('user_id')->references('id')->on('users')->onUpdate('cascade')->onDelete('cascade');
$table->foreignId('badge_id')->references('id')->on('badges')->onUpdate('cascade')->onDelete('cascade');
$table->timestamps();
$table->softDeletes();
});
Schema::create('badges', function (Blueprint $table) {
$table->id();
$table->string('name');
$table->text('description')->nullable();
$table->string('image')->nullable();
$table->integer('condition');
$table->timestamps();
$table->softDeletes();
});
Here are relationships
In BagdeUser modal
public function badge()
{
return $this->hasMany(Badge::class);
}
In Badge modal
public function badgeUser()
{
return $this->belongsTo(BadgeUser::class , 'badge_id');
}
In my resource
I have fetched all the data from the badge_user table and passed it in the resource
public function toArray($request)
{
return [
'badges' => new BadgeResource($this->badge),
];
}
BadeResource
public function toArray($request)
{
return [
'id' => $this->id,
'name' => $this->name,
'description' => $this->description,
'image' => new MediaResource($this->getMedia('badge')->first()),
'condition' => $this->condition,
];
While fetching data o got this
Column not found: 1054 Unknown column 'badges.badge_user_id' in 'where clause' (SQL: select * from `badges` where `badges`.`badge_user_id` = 1 and `badges`.`badge_user_id` is not null and `badges`.`deleted_at` is null)
Now I want the badges associate with the user

Answer 1

The problem is that in your badge_user migration, you create foreign key badge_id which would mean that there is a relation Badge User N:1 Badge
But in your models you assign that BadgeUser has many Badges and Badge belongs to BadgeUser (which is Badge User 1:N Badge)
That is why laravel is looking for badge_user_id in query, because you defined the relationship the other way around.
Still tho you are probably doing M:N relations which you don't need to do manually.
You should use something like this (from Laravel docs)
return $this->belongsToMany(Role::class);