get_querystring template tag
A Django Template tag used to construct urls with current querystring parameters. This is based on some code that I've written some years ago. Enjoy.
- template
- templatetag
- querystring
Snippet List
django-constance generic view
For several projects I am using generic views instead of django-admin, I needed a generic view for constance instead of using their django-admin based app.
- django-constance
templatetag
-
log django exceptions to file
Log Django exceptions to file. Contains snippet for both WatchedFileHandler and RotatingFileHandler handlers. Configurations mentioned are separate And only works if the DEBUG = False. Use "python manage.py runserver --no-reload" If you get file in use error.
fabric wsgi deployment strategy
automated deployments using fabric
Localized Shell
For historical reasons, Django commands are hard-coded to use `en-us` regardless of language. This includes the `shell` command and can lead to surprising effects if one assumes the local language to be the one set by `LANGUAGE_CODE`. This snippets can be saved as a management command in any app, for example using the name `lshell` and provides a localized shell controlled by the normal `LANGUAGE_CODE` setting.
Search child models in django admin changelist
If you use django admin interface and have added an admin page for a model, django gives out-of-box search functionality in the model fields or foreignkey fields. One thing it doesn't support is searching in child models. For example you have created an admin page for Student model and there is model for courses which stores one or more courses taken by students and if you want to search by course name on the student page to see which students took a particular course. Django doesn't let you do that. I have written a small utility which will let you do that. Just copy the snippet in a file and then inherit from the ChildSearchAdmin instead of ModelAdmin and then you can specify which model/fields you want it to search on. The syntax is: **child_searches = [(ChildModel, 'field_to_search_on', 'foreign_key_field_in_child_model'),..] Example: class StudentAdmin(ChildSearchAdmin): child_searches = [(StudentCourse, 'course', 'student')]
RestMiddleware - automatically load objects from url-path
Automatically load models when their IDs appear in the URL-path. See docstrings for usage and example.
- middleware
- urls
- models
Automatic Folder FileField
Your MEDIA_ROOT directories are a mess? FileField save on "upload_to" directories with old/strange/temporary names decided "on the fly" and never fixed down? SmartFolderFileField is the solution! "upload_to" directory depends only on: app, model and field names. No mess, no ambiguities Obviously, in case you need a real callable for a dynamic directory name: please use it! and leave apart FixedFolderFileField Sample: from django.db import models from utilities_app.models import SmartFolderFileField class SampleModel(models.Model): sample_char_field = models.CharField(max_length=50) sample_file_field = SmartFolderFileField()
- upload_to
- FileField
Highlight matched search term
sterm is the search term. text is the result search text. it will highlight every matched search term in search result. please define your own .yellow css class. use: {{search_result_var|highlight:search_term}}
- highlighting
- custom-template-tag
Read-only Model Form Base Class
The simplest way of displaying a "details" table about any model, is to show a ModelFrom with all fields readonly or (selects) disabled. Also, the labels are preferably translatable, not just capitalized names of the column tables in your models. So the constructor translates the field labels as well.
- form
- readonly
File Mimetype Validator (Using python-magic)
This validator works well with FileField form fields and can validate that an uploaded file has an acceptable mimetype. Place this snippet in your app's `validators.py`. Requirements: This snippet uses [python-magic](https://github.com/ahupp/python-magic). To install: pip install python-magic Usage (in forms.py): from validators import MimetypeValidator class MyForm(forms.Form): file = forms.FileField( allow_empty_file=False, validators=[MimetypeValidator('application/pdf')], help_text="Upload a PDF file" )
- validation
- upload
- magic
- mimetype
- FileField
JSON serializer supporting natural primary keys
Copy this file into `your_app/serializer.py`, and add this to your settings: SERIALIZATION_MODULES = { 'json': 'your_app.serializer', } Now you can dump your models with the classical `dumpdata -n` command and load it with `loaddata` and get support for natural primary keys and not only with foreign keys and many to many fields.
- serializer
Template tag and filter for displaying number of years since
Because {% now "Y"|add:"-2005" %} - etc. doesn't work, you can use the above in your template like: We have {{ 2000|since }} years of experience. or: Serving our customers with passion for more than {% years_since 2005 %} years.
- template
- now
- since
- years
Display values from a bound (submitted) form
Function that takes a bound form (submitted form) and returns a list of pairs of field label and user chosen value. It takes care of: 1. fields that are not filled out 2. if you want to exclude some fields from the final list 3. ChoiceField (select or radio button) 4. MultipleChoiceField (multi-select or checkboxes) Usage: if form.is_valid(): form_data = get_form_display_data(form, exclude=['captcha']) It's trivial to display the list of pairs in a template: {% for key, value in form_data %} {{ key }}: {{ value }}{% endfor %}
- template
- form