from django.db import models


class DepartmentExpense(models.Model):
    primary_department = models.CharField(max_length=255)
    year_month = models.CharField(max_length=7)
    expense_type = models.CharField(max_length=255)
    expense_detail = models.CharField(max_length=255)
    budget_limit = models.DecimalField(max_digits=15, decimal_places=2)
    reimbursed_amount = models.DecimalField(max_digits=15, decimal_places=2)
    available_budget = models.DecimalField(max_digits=15, decimal_places=2)

    class Meta:
        verbose_name = '各部门费用情况'
        verbose_name_plural = verbose_name

    def __str__(self):
        return f"{self.primary_department} - {self.year_month} - {self.expense_type}"