from django.db import models

class Dictionary(models.Model):
    """
    数据字典模型
    """
    type = models.CharField(max_length=100, verbose_name='字典类型')
    name = models.CharField(max_length=255, verbose_name='字典名称')
    value = models.CharField(max_length=255, verbose_name='字典值')
    created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
    updated_at = models.DateTimeField(auto_now=True, verbose_name='更新时间')

    class Meta:
        verbose_name = '数据字典'
        verbose_name_plural = '数据字典'
        db_table = 'dictionary'
        unique_together = ('type', 'value')

    def __str__(self):
        return f"{self.type} - {self.name}"