完整性错误,创建新游戏实例时不限制非null常数

时间:2019-04-05 23:01:34

标签: python django

我正在尝试制作一个网络应用程序,使您可以在博客(如样式)中跟踪Spikeball游戏。

我尝试将每个游戏的作者设置为当前用户,然后委托super来保存表单,但提交后仍然存在:

  

/ game / new /中的IntegrityError   NOT NULL约束失败:spike_stats_game.creator_id

这是我的模特:

from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User

class Game(models.Model):
    game = models.CharField(max_length=100, blank=True,null=True)
    score = models.CharField(max_length=10, blank=True,null=True)
    winner = models.CharField(max_length=20, default=None, blank=True,null=True)
    date_played = models.DateField(default=timezone.now)
    creator = models.ForeignKey(User, on_delete=models.CASCADE)
    player1 = models.CharField(max_length=20, blank=True,null=True)
    player2 = models.CharField(max_length=20, blank=True,null=True)
    player3 = models.CharField(max_length=20, blank=True,null=True)
    player4 = models.CharField(max_length=20, blank=True,null=True)

    def __str__(self):
        return self.game

这是我的观点

from django.shortcuts import render
from django.views.generic import (
    ListView, 
    DetailView, 
    CreateView
)
from .models import Game


def home(request):

    context = {
        'games': Game.objects.all()
    }
    return render(request, 'spike_stats/home.html', context)


class GameListView(ListView):
    model = Game
    template_name = 'spike_stats/home.html' # <app>/<model>_<viewtype>.html
    context_object_name = 'games'
    ordering = ['-date_played'] # minus sign orders from newest to oldest


class GameDetailView(DetailView):
    model = Game


class GameCreateView(CreateView):
    model = Game
    fields = ['game', 'score', 'winner', 
    'player1', 'player2', 'player3', 'player4']

    def form_valid(self, form):
        form.instance.author = self.request.user
        return super().form_valid(form)


def about(request):
    return render(request, 'spike_stats/about.html',
                  {'game': 'Game 1 about'})

即使已解决此问题,我仍然应该遇到url错误,但无法克服此障碍。抱歉,如果有任何格式/信息或任何错误,我一般对Python和Stack Overflow还是陌生的。

1 个答案:

答案 0 :(得分:2)

您需要设置creator值,但是您似乎正在尝试定义author

要在form_valid中进行;

def form_valid(self, form):
    game = form.save(commit=False)
    game.creator =  self.request.user
    game.save()
    # redirect or whatever you need to do