Django管理内联内容来源于 Stack Overflow，并遵循CC BY-SA 3.0许可协议进行翻译与使用
内容来源于 Stack Overflow，并遵循CC BY-SA 3.0许可协议进行翻译与使用
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我在用django.contrib.admin在我的应用程序里。
我的models：
class Gallery(models.Model):
location = models.ForeignKey(Location)
date = models.CharField(max_length = 15)
class Image(models.Model):
gallery = models.ForeignKey(Gallery)
name = models.CharField(max_length=35)
image = ImageField(upload_to='songs')我的admin.py:
class ImageInline(admin.StackedInline):
model = Image
class GalleryAdmin(admin.ModelAdmin):
inlines = [ ImageInline, ]在管理部分，我现在可以创建一个图库并在同一个页面上添加图像。默认情况下，Django显示三个图像上传表单。我怎么才能把它改成一个呢？
extra = 0 |
|---|
class GalleryImageInline(admin.TabularInline):
"""
Gallery Image inline
"""
fieldsets = (
(
None,
{
'fields': ('name', 'image',)
}
),
)
model = Image
extra = 0
class GalleryAdmin(admin.ModelAdmin):
"""
Case Study Admin
"""
fieldsets = (
(
None,
{
'fields': ('location', 'date',)
}
),
)
inlines = (GalleryImageInline, )
list_display = ['location', 'date']
list_filter = ['location', ]在我看来，如果内联中的图像是有用的，则需要实际显示图像内联(因此自定义覆盖图像小部件)：
from django.contrib.admin.widgets import AdminFileWidget
from django.utils.translation import ugettext as _
from django.utils.safestring import mark_safe
import os
import Image
class AdminImageWidget(AdminFileWidget):
def render(self, name, value, attrs=None):
output = []
if value and getattr(value, "url", None):
image_url = value.url
file_name=str(value)
# defining the size
size='100x100'
x, y = [int(x) for x in size.split('x')]
try :
# defining the filename and the miniature filename
filehead, filetail = os.path.split(value.path)
basename, format = os.path.splitext(filetail)
miniature = basename + '_' + size + format
filename = value.path
miniature_filename = os.path.join(filehead, miniature)
filehead, filetail = os.path.split(value.url)
miniature_url = filehead + '/' + miniature
# make sure that the thumbnail is a version of the current original sized image
if os.path.exists(miniature_filename) and os.path.getmtime(filename) > os.path.getmtime(miniature_filename):
os.unlink(miniature_filename)
# if the image wasn't already resized, resize it
if not os.path.exists(miniature_filename):
image = Image.open(filename)
image.thumbnail([x, y], Image.ANTIALIAS)
try:
image.save(miniature_filename, image.format, quality=100, optimize=1)
except:
image.save(miniature_filename, image.format, quality=100)
output.append(u' <div><a href="%s" target="_blank"><img src="%s" alt="%s" /></a></div> %s ' % \
(miniature_url, miniature_url, miniature_filename, _('Change:')))
except:
pass
output.append(super(AdminFileWidget, self).render(name, value, attrs))
return mark_safe(u''.join(output))注意：这做了一些你可能不喜欢的调整大小的事情--所以你可能需要自己重写小部件的拇指大小部分。
因此，需要以内联的形式覆盖小部件：
class GalleryImageForm(forms.ModelForm):
"""
Image Admin Form
"""
class Meta:
model = Image
widgets = {
'image' : AdminImageWidget,
}
class GalleryImageInline(admin.TabularInline):
...
form = GalleryImageForm
...你最终会得到这样的东西(这是另一个项目的一部分，还有很多额外的东西)：
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