创建group app

增加相关的models和views
没有测试

group/models.py

@@ -0,0 +1,31 @@
+# coding=utf-8
+from django.db import models
+
+from account.models import User
+
+
+class Group(models.Model):
+    name = models.CharField(max_length=30)
+    description = models.TextField()
+    create_time = models.DateTimeField(auto_now_add=True)
+    admin = models.ForeignKey(User, related_name="my_groups")
+    # 0是公开 1是需要申请后加入 2是不允许任何人加入
+    join_group_setting = models.IntegerField()
+    members = models.ManyToManyField(User)
+    # 解散小组后，这一项改为False
+    visible = models.BooleanField(default=True)
+
+    class Meta:
+        db_table = "group"
+
+
+class JoinGroupRequest(models.Model):
+    group = models.ForeignKey(User)
+    user = models.ForeignKey(User, related_name="my_join_group_requests")
+    message = models.TextField()
+    create_time = models.DateTimeField(auto_now_add=True)
+    # 是否处理
+    status = models.BooleanField(default=False)
+
+    class Meta:
+        db_table = "join_group_request"