django 简单会议室预约（5）

再来看看views.py的后半部分，对数据库的增删改查

#获取学院列表
def get_acad_list():
	room_list = ConfeRoom.objects.all() #对数据库的操作
	acad_list = set()
	for room in room_list:
		acad_list.add(room.acad)
	return list(acad_list)
#查看会议室
def viewroom(req):
	username = req.session.get('username', '')
	if username != '':
		user = MyUser.objects.get(user__username=username)
	else:
		user = ''
	acad_list=get_acad_list() 
	room_acad = req.GET.get("acad","all")	#从前台点击选择学院，											
	if room_acad not in acad_list:			#如果没有就全部显示
		room_acad = "all"
		room_list=ConfeRoom.objects.all()
	else:
		room_list=ConfeRoom.objects.filter(acad=room_acad)#只显示选定学院的会议室
	content = {"active_menu":'viewroom',"acad_list":acad_list,"room_acad":room_acad,"room_list":room_list,"user":user}
	return render_to_response('viewroom.html',content,context_instance=RequestContext(req))
#会议室详情
def detail(req):
	username = req.session.get('username','')
	if username != '':
		user = MyUser.objects.get(user__username=username)
	else:
		user = ''
	Id = req.GET.get("id","") #获得会议室主键ID号
	req.session["id"]=Id
	if Id == "":
		return HttpResponseRedirect('/viewroom/')
	try:
		room = ConfeRoom.objects.get(pk=Id)#根据ID显示详细信息
		ro =Detail.objects.get(pk=Id)
	except:				
		return HttpResponseRedirect('/viewroom/')
	img_list = Detail.objects.filter(room=room)
	num_list = get_order_list()
	if room.num not in num_list:	#判断是否被预定，给定状态，给前台显示是否可以预定
		or_sta="yes"
	else:
		or_sta="no"
	content = {"active_menu":"viewroom","room":room,"img_list":img_list,"ro":ro,"or_sta":or_sta,"user":user}
	return render_to_response('detail.html',content)
#预定
#获取预定列表 
def get_order_list():
	num_list=set()
	order_list=Order.objects.all()
	for order in order_list:
		num_list.add(order.num)
	return list(num_list)
def order(req):
	username = req.session.get('username','')
	if username != '':
		user = MyUser.objects.get(user__username=username)
	else:
		user = ''
	roid = req.session.get("id","")						#预定，将数据保存到数据库
	room = ConfeRoom.objects.get(pk=roid)
	time = Detail.objects.get(name=room.name)
	u = MyUser.objects.get(user__username=username)
	order = Order(user=username,num=room.num,name=room.name,time=time.time,size=room.size,phone=u.phone)
	order.save()
	return render_to_response("index2.html",{"user":user},context_instance=RequestContext(req))
#查看预定信息		
def myorder(req):
	username = req.session.get('username','')
	if username != '':
		user = MyUser.objects.get(user__username=username)
	else:
		user = ''
	try:
		my_order=Order.objects.all()				#索引数据库查看已预订信息
		us_sta = "no"
		return render_to_response("myorder.html",{"myorder":my_order,"us_sta":us_sta,"user":user},context_instance=RequestContext(req))
				
	except:
		us_sta = "yes"		
		return render_to_response("myorder.html",{"us_sta":us_sta,"user":user},context_instance=RequestContext(req))
#取消预定		
def cancel(req):
	username = req.session.get('username','')
	if username != '':
		user = MyUser.objects.get(user__username=username)
	else:
		user = ''
	Id = req.GET.get("id","")					#取消预订，删除数据
	room =Order.objects.get(pk=Id)
	room.delete()
	return render_to_response("index.html",context_instance=RequestContext(req))

通过查django文档和学习别人的博客终于是把它写出来了，但是觉得有的地方还是写的不是很好，以后有时间再学习修改吧。

一个简单的预定过程完成了，虽然很简单但是我从中确实学到不少东西。