feat: 添加行政管理App

apps/ofm/admin.py

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+from django.contrib import admin
+
+# Register your models here.

apps/ofm/apps.py

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+from django.apps import AppConfig
+
+
+class OfmConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'apps.ofm'

apps/ofm/models.py

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+from django.db import models
+from apps.utils.models import CommonADModel, BaseModel
+# Create your models here.
+
+class Mroom(CommonADModel):
+    """TN: 会议室基本信息"""
+    name = models.CharField('会议室名称', max_length=50, unique=True)
+    location = models.CharField('位置', max_length=100)
+    capacity = models.PositiveIntegerField('容纳人数')
+
+class MroomBooking(CommonADModel):
+    """TN: 会议室预定信息"""
+    title = models.CharField('会议主题', max_length=100)
+
+
+class MroomSlot(BaseModel):
+    """TN: 会议室时段"""
+    mroom = models.ForeignKey(Mroom, on_delete=models.CASCADE)
+    booking = models.ForeignKey(MroomBooking, on_delete=models.CASCADE)
+    mdate = models.DateField('会议日期', db_index=True)
+    slot = models.PositiveIntegerField('时段', help_text='0-47')
+    
+    class Meta:
+        unique_together = ('mroom', 'mdate', 'slot')
+    

apps/ofm/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

apps/ofm/views.py

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+from django.shortcuts import render
+from apps.utils.viewsets import CustomModelViewSet
+
+