Laravel：一对多关系，从表中拉出最后 N 条记录

Question

I have a User model and workLOG model. The user model has many work logs, meaning One user can have many work logs (ONE TO MANY RELATIONSHIP). I have created a relationship using the Eloquent relationship.

User Model

public function workLog()
{
return $this->hasMany('App\WorkLog','user_id','id');
}

workLog Model

class WorkLog extends Model
{
    protected $table="worklog";
}

The worklog table has a column called total_hours_per_day . How can I pull the last N records from the column of the logged-in or authenticated user?

What I have done to get workLog so far

$worklogs = Auth::user()->workLog;

Now I want to get last 7 data from the column total_hours_per_day

Screenshots of the table

Answer 1

you need to establish on the WorkLog model a belongsTo .

public function user()
{
return $this->belongsTo('App\User');
}

Edit: relationships have to be established in both models you're trying to relate. If you like a girl, she needs to like you back to establish a relationship. You just defined the relationship in one side.

Answer 2

Try using take() As Laravel documentation says: "The take method returns a new collection with the specified number of items"

Answer 3

$worklogs = Auth::user()->workLog->take(-7)->reverse();

and I pull the last 7 records from total_hours_per_day column in the blade template as:-

@foreach ($worklogs as $worklog)
{{ $worklog->total_hours_per_day }}
@endforeach