你能做到彼此相關的幾個模型,並添加圖像在Django管理員一個TabularInline
,如:
# models.py
class City(models.Model):
# your fields
class CityImage(models.Model):
city = models.ForeignKey('City', related_name='images')
image = models.ImageField(upload_to=image_upload_path)
# admin.py
from django.contrib import admin
from myapp.models import City, CityImage
class CityImageInline(admin.TabularInline):
model = CityImage
class CityAdmin(admin.ModelAdmin):
inlines = [CityImageInline]
admin.site.register(City, CityAdmin)
至於縮略圖,您需要在您的City
模型的方式來決定要使用哪些相關圖像作爲縮略圖,然後執行如下操作:
import Image
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
from django.core.files.base import ContentFile
# other imports and models
class City(models.Model):
# your fields
def get_thumbnail(self, thumb_size=None):
# find a way to choose one of the uploaded images and
# assign it to `chosen_image`.
base = Image.open(StringIO(chosen_image.image.read())) # get the image
size = thumb_size
if not thumb_size:
# set a default thumbnail size if no `thumb_size` is given
rate = 0.2 # 20% of the original size
size = base.size
size = (int(size[0] * rate), int(size[1] * rate))
base.thumbnail(size) # make the thumbnail
thumbnail = StringIO()
base.save(thumbnail, 'PNG')
thumbnail = ContentFile(thumbnail.getvalue()) # turn the tumbnail to a "savable" object
return thumbnail
我希望這能派上用場! :)
你可以改變動態上傳ImageField的路徑嗎?這樣我可以將圖像上傳到/ images/country_name/state_name/city_name /例如? – HighLife
是的,你可以。 upload_to可以是返回路徑的函數。看看這個: https://docs.djangoproject.com/en/1.4/ref/models/fields/#django.db.models.FileField.upload_to – Gerard