您好，我正在尝试制作显示所有类别的脚本，如果类别属于发布此类别，则应使用复选框进行检查。我的脚本不起作用，你能帮我吗？当必须显示两个时，它只显示一个选中的类别。控制器类别型号：
class Category extends Eloquent {
protected $table= "categories";
public function posts(){
return $this->belongsToMany('Post');
}
}
发布模型
class Post extends Eloquent {
protected $table = 'posts';
public function categories(){
return $this->belongsToMany('Category');
}
}
猫关系：
[{"id":"45","post_id":"132","category_id":"1","created_at":"2014-12-26 20:32:41","updated_at":"2014-12-26 20:32:41"},{"id":"46","post_id":"132","category_id":"3","created_at":"2014-12-26 20:32:41","updated_at":"2014-12-26 20:32:41"}]
所有类别： [{"id":"1","name":"Laravel","slug":"laravel","created_at":"-0001-11-30 00:00:00","updated_at":"-0001-11-30 00:00:00"},{"id":"3","name":"PHP","slug":"php","created_at":"-0001-11-30 00:00:00","updated_at":"-0001-11-30 00:00:00"}]
类别不应该属于帖子，而应该属于一个类别。
我假设catRelation是你的数据透视表。你不需要id，created_at或updated_at，这是毫无价值的。
示例模型：
class Post extends Eloquent
{
protected $table = 'posts';
public function category()
{
return $this->belongsToMany('Category', 'catRelation', 'category_id');
}
}
class Category extends Eloquent
{
protected $table = 'categories';
public function post()
{
return $this->belongsToMany('Post', 'catRelation', 'post_id');
}
}
注意：我可能以错误的方式得到了belongsToMany最终论点。