mini_xzey/app/Models/Admin/DepartmentTip.php

<?php

declare(strict_types=1);

namespace App\Models\Admin;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class DepartmentTip extends Model
{
    use HasFactory;

    /**
     * @var string
     */
    protected $connection = 'mysql_admin';

    /**
     * @var string
     */
    protected $table = 'department_tips';

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'dept_id',
        'title',
        'message',
        'is_enable'
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'id' => 'integer',
        'is_enable' => 'integer',
    ];

    /**
     * 科室分类
     * @return BelongsTo
     */
    public function department(): BelongsTo
    {
        return $this->belongsTo(Department::class, 'dept_id', 'dept_id');
    }
}