完善了一下serializers

history/models.py

@@ -5,6 +5,7 @@ from django.core.validators import validate_comma_separated_integer_list
 class Department(models.Model):
     did = models.IntegerField("部门ID")
     department = models.CharField("部门", max_length=10)  # 如“程序部”
+    department_en = models.CharField("部门英文名称", max_length=30)  # 如“程序部”
     part = models.IntegerField("部分", default=0)  # 0：内容一；1：内容二          （可能没必要）
     title = models.CharField("标题", max_length=30)  # 如部门介绍/部门要求
     content = models.CharField("内容", max_length=1500)  # 如部门介绍/部门要求
@@ -26,6 +27,7 @@ class History(models.Model):
 
 class Members(models.Model):
     # 默认id作为成员id
+    id = models.IntegerField(primary_key=True)
     avatar = models.ImageField("头像", upload_to="avatar", blank=True)
     did = models.IntegerField("所属部门ID", default=0)
     grade = models.IntegerField("年级")