1

私はlightbirdによるチュートリアル「Todo List」に従っています

私が抱えている問題は、ユーザー プロパティを models.py アイテム クラスで動作させることだと思います。私が得ているエラーは、ユーザー プロパティ定義をどこに追加するかを理解していないことが原因のようです。

user = models.ForeignKey(User, blank=True, null=True)

このコード行を Item クラスに追加しましたが、まだ User の引数がありません。

ここに私の完全なmodels.pyがあります:

from django.db import models
from django.contrib import admin
from django.utils.translation import ugettext as _
from django.utils.encoding import force_unicode
from django.http import HttpResponse, HttpResponseRedirect
from django.core.urlresolvers import reverse



# Create your models here.
class DateTime(models.Model):
    datetime = models.DateTimeField(auto_now_add=True)
    def __unicode__(self):
        return unicode(self.datetime.strftime("%b %d, %Y, %I:%M %p"))

class Item(models.Model):
    progress = models.IntegerField(default=0)
    name = models.CharField(max_length=60)
    created = models.ForeignKey(DateTime)
    priority = models.IntegerField(default=0)
    difficulty = models.IntegerField(default=0)
    done = models.BooleanField(default=False)
    user = models.ForeignKey(User, blank=True, null=True)
    def mark_done(self):
        return "<a href='%s'>Done</a>" % reverse("todo.views.mark_done", args=[self.pk])
    mark_done.allow_tags = True
    def progress_(self):
        return "<div style='width: 100px; border: 1px solid #ccc;'>" + \
        "<div style='height: 4px; width: %dpx; background: #555; '></div></div>" % self.progress
    progress_.allow_tags = True

class ItemAdmin(admin.ModelAdmin):
    list_display = ["name", "priority", "difficulty", "created", "done"]
    search_fields = ["name"]

class ItemInline(admin.TabularInline):
    model = Item

class DateAdmin(admin.ModelAdmin):
    list_display = ["datetime"]
    inlines = [ItemInline]
    def response_add(self, request, obj, post_url_continue='../%s/'):
        """ Determines the HttpResponse for the add_view stage.  """
        for item in Item.objects.filter(created=obj):
            if not item.user:
                item.user = request.user
                item.save()
            return HttpResponseRedirect(reverse("admin:todo_item_changelist"))
        opts = obj._meta
        pk_value = obj._get_pk_val()
        msg = "Item(s) were added successfully."
        # Here, we distinguish between different save types by checking for
        # the presence of keys in request.POST.
        if request.POST.has_key("_continue"):
            self.message_user(request, msg + ' ' + _("You may edit it again below."))
            if request.POST.has_key("_popup"):
                post_url_continue += "?_popup=1"
            return HttpResponseRedirect(post_url_continue % pk_value)

        if request.POST.has_key("_popup"):
            return HttpResponse(
              '<script type="text/javascript">opener.dismissAddAnotherPopup(window, "%s", "%s");'
              '</script>' % (escape(pk_value), escape(obj)))
        elif request.POST.has_key("_addanother"):
            self.message_user(request, msg + ' ' + (_("You may add another %s below.") %
                                                    force_unicode(opts.verbose_name)))
            return HttpResponseRedirect(request.path)
        else:
            self.message_user(request, msg)

            return HttpResponseRedirect(reverse("admin:todo_item_changelist"))

admin.site.register(Item, ItemAdmin)
admin.site.register(DateTime, DateAdmin)

結果のエラー メッセージ:

name 'User' is not defined
4

1 に答える 1

4

おそらく User をインポートする必要があるだけです:

from django.contrib.auth.models import User
于 2014-03-12T09:29:57.303 に答える