Snippet List
This is extremely simple decorator to add possibility to upload files with name specific in some object field. For example image with same name as object slug.
Sample **model**:
class Test(models.Model):
image = models.ImageField(\
upload_to=upload_to_dest(path='pics/', \
human_readable_field='hrname'))
hrname = models.CharField( \
max_length=128, \
blank=True, default='')
Sample **form** for admin:
FNAME_EXP = re.compile('^[A-Za-z0-9\-\_]+$')
class TestAdminForm(forms.ModelForm):
hrname = forms.RegexField(
label="Human Readable File Name", \
regex=FNAME_EXP, \
help_text="""Allowed only latin alphabet
(upper and lower cases),
underscore and minus
characters. PLEASE, DO NOT INCLUDE
EXTENSION OF THE FILE.
Sample: test-this-file""", \
required=False)
class Meta:
model = Test
Sample *admin.py* for *Test* model:
class TestAdmin(admin.ModelAdmin):
form = TestAdminForm
admin.site.register(Test, TesetAdmin)
- django
- ImageField
- file uploads
- file name
- FileField
ResizeImageField
================
(extension of RemovableImageField)
=================================
by Wim Feijen, Go2People.
What does it do?
----------------
ResizeImageField is a replacement for django's ImageField. It has two major benefits:
1. Creation of thumbnails and scaled images.
1. Extends the image upload form and adds a preview and a checkbox to remove the existing image.
It's easy to use:
- Replace ImageField by ResizeImageField
- No further changes are necessary
Requirements:
-------------
Working installation of PIL, the Python Imaging Library
Usage
-----
- add resize_image to your app
- add resize_filters.py to your templatetags
- in settings.py, set a PHOTO_DIR, f.e. photos/original
- in models.py, add:
- from settings import PHOTO_DIR
- from resize_image import ResizeImageField
- photo = ResizeImageField(upload_to=PHOTO_DIR, blank=True)
Scaled images will be stored in 'photos/scaled',
thumbnails will be stored in 'photos/thumb'.
Access your images from your template. Add::
{% load resize_filters %}
{{ address.photo.url|thumb }}
or::
{{ address.photo.url|scaled }}
Defaults
-------
- Scaled images are max. 200x200 pixels by default
- Thumbnails are 50x50 pixels.
Override the default behaviour in settings.py
Scaling is done by PIL's thumbnail function, transparency is conserved.
Credits
------
This code is an adaptation from python snippet 636 by tomZ: "Updated Filefield / ImageField with a delete checkbox"
- image
- thumbnail
- resize
- scale
- delete
- ImageField
- ResizeImageField
- removable
2 snippets posted so far.