Django管理员不显示所有实体 [英] Django admin does not show all entities
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问题描述
然后我运行 python manage.py shell ，那里有code> Video.objects.all（），共有25个对象（使用 len 计数，并以
我没有找到任何经理或任何（也许我只是不知道在哪里找他们）
在管理页面的底部： 25个视频，而只有16行。
然后我添加到VideoModelAdmin类 list_per_page = 10 ，paginator显示三页，但只有前两个有任何视频，第3显示没有行。
以下是一些代码。
＃admin .py
class VideoModelAdmin（admin.ModelAdmin）：
list_display = ['title'，'short_desc'，'author'，'redactor_choise'，'views_num'，'rating'，'is_published']
list_filter = ['is_published'，'redactor_choise']
list_per_page = 10
actions = ['make_published'，'update_comments_count']
exclude =（'file_lq'，'file_hq'，）＃'thumb'，）
def make_published（self，请求，查询）：
queryset.update（is_published = 1）
make_published.short_description =Опубликоватьвыделенные
def save_model（self，request，obj，form，change） ：
instance = form.save（commit = False）
instance.author = request.user
instance.save（）
返回实例
def update_comments_count（self，request，queryset）：
在查询中的视频：
video.update_comments_count（）
update_comments_count.short_description =Пересчитатькомментарии！
＃later there
admin.site.register（Video，VideoModelAdmin）
＃models.py
class视频（models.Model）：
def make_upload_path（instance，filename）：
return'video / thumbs /'+ generate_random_name（filename）
category = models.ManyToManyField ，limit_choices_to = {'is_published'：1}）
title = models.CharField（max_length = 128）
short_desc = models.CharField（max_length = 255）
long_desc = tinymce_models.HTMLField = true）
file_lq = models.FileField（upload_to ='video / lq /'，null = True，blank = True）
file_hq = models.FileField（upload_to ='video / hq /'，null = true，blank = True）
thumb = models.FileField（upload_to = make_upload_path，blank = True，null = True）
#thumb = fields.ThumbnailField（upload_to = make_upload_path，sizes = settings.VIDEO_THUMB_SIZE， blank = True，null = True）
author = models.ForeignKey（User，editable = False）
redactor_choise = mod els.BooleanField（default = False）
view_num = models.SmallIntegerField（default = 0，editable = False）
comments_num = models.SmallIntegerField（default = 0，editable = False）
rating = $ s $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
is_published = models.BooleanField（default = False）
def get_absolute_url（self）：
return/ video /％d％self.id
def views_num_plus ）
cursor = connection.cursor（）
cursor.execute（'update soctv_video set views_num = views_num + 1 where id =％d'，[self.id]）
cursor.close （）
def update_comments_count（self）：
from threadedcomments.models import ThreadedComment as Comment
self.comments_num = Comment.objects.filter（video = self）.count（）
self.save（）
#cursor = connection.c ursor（）
＃cursor.execute（'update soctv_video set comments_num =（select count（*）from soctv_comment where video_id =％s）其中id =％s'，[self.id，self.id]）
＃cursor.close（）
def update_categories_counts（self）：
cursor = connection.cursor（）
cursor.execute（'update soctv_category set num_items =（select来自soctv_video_category的count（*），其中category_id = soctv_category.id）'）
cursor.close（）
def is_user_voted（self，uid）：
try：
如果self.voters [uid]：
return self.voters [uid]
除了异常：
return False
def increment_view_count（self，token）：
import md5
token = md5.new（token）.hexdigest（）
如果VideoView.objects.filter（uniquetoken = token）.count（）== 0：
VideoView（uniquetoken = token，video = self）.save（）
def view_count（self）：
return self.views_num + VideoView.objects.filter（video = self）.count（）
def __unicode __（self）：
return unicode（self.title）
解决方案
问题可能是某些视频中的某些FK指向不存在。
我有同样的问题，这就是原因。
I've inherited an app created with Django. There is a problem with it: in admin interface, the page lists not all entities (videos), but some (16 of 25). I have no idea, what is this.
Then I run python manage.py shell, and there Video.objects.all(), there are all 25 objects (counted them using len and by iterating them with for loop).
I have found no managers or whatever (maybe I just don't know where to look for them).
On the bottom of admin page: 25 videos, while there are only 16 rows.
Then I add to VideoModelAdmin class list_per_page = 10, paginator show three pages, but only first two of them has any Videos, third shows no rows.
Here are some code.
# admin.py
class VideoModelAdmin(admin.ModelAdmin):
list_display = ['title', 'short_desc', 'author', 'redactor_choise', 'views_num', 'rating', 'is_published']
list_filter = ['is_published', 'redactor_choise']
list_per_page = 10
actions = ['make_published', 'update_comments_count']
exclude = ('file_lq', 'file_hq', )#'thumb',)
def make_published(self, request, queryset):
queryset.update(is_published=1)
make_published.short_description = "Опубликовать выделенные"
def save_model(self, request, obj, form, change):
instance = form.save(commit=False)
instance.author = request.user
instance.save()
return instance
def update_comments_count(self, request, queryset):
for video in queryset:
video.update_comments_count()
update_comments_count.short_description = "Пересчитать комментарии!"
# later there
admin.site.register(Video, VideoModelAdmin)
# models.py
class Video(models.Model):
def make_upload_path(instance, filename):
return 'video/thumbs/' + generate_random_name(filename)
category = models.ManyToManyField(Category, limit_choices_to = {'is_published': 1})
title = models.CharField(max_length=128)
short_desc = models.CharField(max_length=255)
long_desc = tinymce_models.HTMLField(blank=True)
file_lq = models.FileField(upload_to='video/lq/', null=True, blank=True)
file_hq = models.FileField(upload_to='video/hq/', null=True, blank=True)
thumb = models.FileField(upload_to=make_upload_path, blank=True, null=True)
#thumb = fields.ThumbnailField(upload_to=make_upload_path, sizes=settings.VIDEO_THUMB_SIZE, blank=True, null=True)
author = models.ForeignKey(User, editable=False)
redactor_choise = models.BooleanField(default=False)
views_num = models.SmallIntegerField(default=0, editable=False)
comments_num = models.SmallIntegerField(default=0, editable=False)
rating = models.SmallIntegerField(default=0, editable=False)
voters = fields.PickledObjectField(blank=True, editable=False)
created = models.DateTimeField(auto_now_add=True)
is_published = models.BooleanField(default=False)
def get_absolute_url(self):
return "/video/%d" % self.id
def views_num_plus(self):
cursor = connection.cursor()
cursor.execute('update soctv_video set views_num=views_num+1 where id=%d', [self.id])
cursor.close()
def update_comments_count(self):
from threadedcomments.models import ThreadedComment as Comment
self.comments_num = Comment.objects.filter(video=self).count()
self.save()
#cursor = connection.cursor()
#cursor.execute('update soctv_video set comments_num = (select count(*) from soctv_comment where video_id = %s) where id = %s', [self.id, self.id])
#cursor.close()
def update_categories_counts(self):
cursor = connection.cursor()
cursor.execute('update soctv_category set num_items = (select count(*) from soctv_video_category where category_id = soctv_category.id)')
cursor.close()
def is_user_voted(self, uid):
try:
if self.voters[uid]:
return self.voters[uid]
except Exception:
return False
def increment_view_count(self, token):
import md5
token = md5.new(token).hexdigest()
if VideoView.objects.filter(uniquetoken=token).count() == 0:
VideoView(uniquetoken = token, video = self).save()
def view_count(self):
return self.views_num + VideoView.objects.filter(video=self).count()
def __unicode__(self):
return unicode(self.title)
解决方案
The problem can be that some FK in some of your videos points to something that does not exist.
I had the same problem and this was the reason.
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