XLJK-api/app/Models/Focus.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Focus extends Model
{
    protected $table = 'focus';
    protected $primaryKey = 'user_id';

    public static function getFansCount(int $user_id)
    {
        return Focus::query()->where(['user_id'=>$user_id])->count();
    }

    public static function getFocusCount(int $user_id)
    {
        return Focus::query()->where(['target_id'=>$user_id])->count();
    }
    public static function focus(int $user_id, int $target_id)
    {
        return Focus::query()->insert(['user_id'=>$user_id,'target_id'=>$target_id]);
    }
    public static function delFocus(int $user_id, int $target_id)
    {
        return Focus::query()->where(['user_id'=>$user_id,'target_id'=>$target_id])->update(['status'=>1]);
    }
}