Initial commit: UPS management system

ups_management/ups_manager/models.py

@@ -0,0 +1,99 @@
+from django.db import models
+from datetime import date
+
+
+class Contact(models.Model):
+    name = models.CharField(max_length=100, verbose_name='姓名')
+    phone = models.CharField(max_length=20, verbose_name='联系电话')
+    email = models.EmailField(blank=True, null=True, verbose_name='邮箱')
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = '联系人'
+        verbose_name_plural = '联系人'
+
+
+class Supplier(models.Model):
+    company_name = models.CharField(max_length=200, verbose_name='公司名称')
+    contact_person = models.CharField(max_length=100, verbose_name='联系人')
+    phone = models.CharField(max_length=20, verbose_name='联系电话')
+    email = models.EmailField(blank=True, null=True, verbose_name='邮箱')
+    address = models.CharField(max_length=500, blank=True, null=True, verbose_name='地址')
+    remark = models.TextField(blank=True, null=True, verbose_name='备注')
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
+
+    def __str__(self):
+        return self.company_name
+
+    class Meta:
+        verbose_name = '维保供应商'
+        verbose_name_plural = '维保供应商'
+
+
+class UPSHost(models.Model):
+    brand = models.CharField(max_length=100, verbose_name='品牌')
+    model = models.CharField(max_length=100, verbose_name='型号')
+    ip_address = models.CharField(max_length=50, verbose_name='IP地址')
+    quantity = models.IntegerField(default=1, verbose_name='数量')
+    location = models.CharField(max_length=200, verbose_name='存放位置')
+    last_maintenance_date = models.DateField(blank=True, null=True, verbose_name='上次维保时间')
+    contact = models.ForeignKey(Contact, on_delete=models.SET_NULL, blank=True, null=True, verbose_name='联系人')
+    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')
+
+    def __str__(self):
+        if self.ip_address and not self.ip_address.startswith('-'):
+            return f'{self.brand} {self.model} - {self.ip_address}'
+        return f'{self.brand} {self.model}'
+
+    class Meta:
+        verbose_name = 'UPS主机'
+        verbose_name_plural = 'UPS主机'
+
+
+class Battery(models.Model):
+    brand = models.CharField(max_length=100, verbose_name='品牌')
+    model = models.CharField(max_length=100, verbose_name='型号')
+    weight = models.FloatField(verbose_name='重量(kg)')
+    quantity = models.IntegerField(default=1, verbose_name='数量')
+    location = models.CharField(max_length=200, verbose_name='存放位置')
+    install_date = models.DateField(blank=True, null=True, verbose_name='安装日期')
+    last_maintenance_date = models.DateField(blank=True, null=True, verbose_name='上次维保时间')
+    ups_host = models.ForeignKey(UPSHost, on_delete=models.SET_NULL, blank=True, null=True, verbose_name='关联UPS主机')
+    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')
+
+    @property
+    def used_years(self):
+        if not self.install_date:
+            return None
+        today = date.today()
+        delta = today - self.install_date
+        return round(delta.days / 365.25, 1)
+
+    def __str__(self):
+        return f'{self.brand} {self.model}'
+
+    class Meta:
+        verbose_name = '电池'
+        verbose_name_plural = '电池'
+
+
+class MaintenanceRecord(models.Model):
+    ups_host = models.ForeignKey(UPSHost, on_delete=models.CASCADE, verbose_name='UPS主机')
+    battery = models.ForeignKey(Battery, on_delete=models.SET_NULL, blank=True, null=True, verbose_name='电池')
+    supplier = models.ForeignKey(Supplier, on_delete=models.SET_NULL, blank=True, null=True, verbose_name='维保供应商')
+    maintenance_date = models.DateField(verbose_name='维修日期')
+    content = models.TextField(verbose_name='维修内容')
+    technician = models.CharField(max_length=100, verbose_name='维修人员')
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
+
+    def __str__(self):
+        return f'{self.ups_host} - {self.maintenance_date}'
+
+    class Meta:
+        verbose_name = '维修记录'
+        verbose_name_plural = '维修记录'