108 lines
3.6 KiB
Python
108 lines
3.6 KiB
Python
import json
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from django.http import HttpResponse
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from django.shortcuts import render, redirect
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from demo.forms import UserForm
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from demo.models import Subject, Teacher, User, proto
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def login(request):
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if request.method.lower() == 'get':
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return render(request, 'demo/login.html', {})
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else:
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username = request.POST['username']
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try:
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user = User.objects.get(username__exact=username)
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password = request.POST['password']
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hasher = proto.copy()
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hasher.update(password.encode('utf-8'))
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if hasher.hexdigest() == user.password:
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request.session['user'] = user
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return redirect('sub')
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except User.DoesNotExist:
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pass
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return render(request, 'demo/login.html',
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{'hint': '用户名或密码错误'})
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def register(request):
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form = UserForm()
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if request.method.lower() == 'get':
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return render(request, 'demo/register.html', {'f': form})
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else:
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ctx = {}
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try:
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form = UserForm(request.POST)
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ctx['f'] = form
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if form.is_valid():
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form.save(commit=True)
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ctx['hint'] = '注册成功请登录!'
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return render(request, 'demo/login.html', ctx)
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except:
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ctx['hint'] = '注册失败, 请重新尝试!'
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return render(request, 'demo/register.html', ctx)
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def check_username(request):
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ctx = {}
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if 'username' in request.GET:
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username = request.GET['username']
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try:
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User.objects.get(username__exact=username)
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ctx['valid'] = False
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except User.DoesNotExist:
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ctx['valid'] = True
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return HttpResponse(json.dumps(ctx),
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content_type='application/json; charset=utf-8')
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def show_subjects(request):
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if 'user' in request.session and request.session['user']:
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ctx = {'subjects_list': Subject.objects.all()}
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return render(request, 'demo/subject.html', ctx)
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else:
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return render(request, 'demo/login.html',
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{'hint': '请先登录!'})
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def show_teachers(request, no):
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if 'user' in request.session and request.session['user']:
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teachers = Teacher.objects.filter(subject__no=no)\
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.select_related('subject')
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ctx = {'teachers_list': teachers}
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return render(request, 'demo/teacher.html', ctx)
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else:
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return render(request, 'demo/login.html',
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{'hint': '请先登录!'})
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def make_comment(request, no):
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ctx = {'code': 200}
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if 'user' in request.session and request.session['user']:
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user = request.session['user']
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if user.counter > 0:
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try:
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teacher = Teacher.objects.get(pk=no)
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if request.path.startswith('/good'):
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teacher.good_count += 1
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ctx['result'] = f'好评({teacher.gcount})'
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else:
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teacher.bad_count += 1
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ctx['result'] = f'差评({teacher.bcount})'
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teacher.save()
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user.counter -= 1
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User.objects.filter(username__exact=user.username)\
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.update(counter=user.counter)
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request.session['user'] = user
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except Teacher.DoesNotExist:
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ctx['code'] = 404
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else:
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ctx['code'] = 403
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ctx['result'] = '票数不足'
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else:
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ctx['code'] = 302
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ctx['result'] = '请先登录'
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return HttpResponse(json.dumps(ctx),
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content_type='application/json; charset=utf-8')
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