bx-django-utils 18

Various Django utility functions

Boxine - bx_django_utils

Various Django utility functions

Quickstart

pip install bx_django_utils

Existing stuff

Here only a simple list about existing utilities. Please take a look into the sources and tests for deeper informations.

bx_django_utils.approve_workflow

Base model/admin/form classes to implement a model with draft/approve versions workflow

bx_django_utils.approve_workflow.admin

• BaseApproveModelAdmin() - Base admin class for a draft/approve Model

bx_django_utils.approve_workflow.forms

• PublishAdminForm() - Activate models REQUIRED_FIELDS_PUBLIC on approve

bx_django_utils.approve_workflow.models

• BaseApproveModel() - Base model class for approve models and this relation models.
• BaseApproveWorkflowModel() - Base model for approve workflow models.

bx_django_utils.data_types.gtin

ModelField, FormField and validators for GTIN/UPC/EAN numbers

bx_django_utils.data_types.gtin.form_fields

• GtinFormField() - Form field with GTIN validator.

bx_django_utils.data_types.gtin.model_fields

• GtinModelField() - GTIN model field

bx_django_utils.data_types.gtin.validators

• GtinValidator() - Validate GTIN number
• validate_gtin() - It's the same as stdnum.ean.validate() but also accept ISBN-10

bx_django_utils.dbperf.cursor

• RecordingCursorWrapper() - An implementation of django.db.backends.utils.CursorWrapper.

bx_django_utils.dbperf.query_recorder

• SQLQueryRecorder() - A context manager that allows recording SQL queries executed during its lifetime.

bx_django_utils.filename

• clean_filename() - Convert filename to ASCII only via slugify.
• filename2human_name() - Convert filename to a capitalized name.

bx_django_utils.humanize.pformat

• pformat() - Better pretty-print-format using DjangoJSONEncoder with fallback to pprint.pformat()

bx_django_utils.humanize.time

• human_timedelta() - Converts a time duration into a friendly text representation. (X ms, sec, minutes etc.)

bx_django_utils.json_utils

• make_json_serializable() - Convert value to a JSON serializable value, with convert callback for special objects.
• to_json() - Convert value to JSON via make_json_serializable() and DjangoJSONEncoder()

bx_django_utils.models.color_field

• ColorModelField() - Hex color model field, e.g.: "#0055ff" (It's not a html color picker widget)
• HexColorValidator() - Hex color validator (seven-character hexadecimal notation, e.g.: "#0055ff")

bx_django_utils.models.manipulate

Utilities to manipulate objects in database via models:

• CreateOrUpdateResult() - Result object returned by create_or_update2() with all information about create/save a model.
• InvalidStoreBehavior() - Exception used in create_or_update() if "store_behavior" contains not existing field names.
• create() - Create a new model instance with optional validate before create.
• create_or_update() - Create a new model instance or update a existing one. Deprecated! Use: create_or_update2()
• create_or_update2() - Create a new model instance or update a existing one and returns CreateOrUpdateResult instance

bx_django_utils.models.queryset_utils

• remove_filter() - Remove an applied .filter() from a QuerySet
• remove_model_filter() - Remove an applied .filter() from a QuerySet if it contains references to the specified model

bx_django_utils.models.timetracking

• TimetrackingBaseModel() - Abstract base model that will automaticly set create/update Datetimes.

bx_django_utils.stacktrace

• StackTrace() - Built-in mutable sequence.
• StacktraceAfter() - Generate a stack trace after a package was visited.
• get_stacktrace() - Returns a StackTrace object, which is a list of FrameInfo objects.

bx_django_utils.templatetags.humanize_time

• human_duration() - Verbose time since template tag, e.g.: <span title="Jan. 1, 2000, noon">2.0 seconds</span>

bx_django_utils.test_utils

Utilities / helper for writing tests.

bx_django_utils.test_utils.assert_queries

• AssertQueries() - Assert executed database queries: Check table names, duplicate/similar Queries.

bx_django_utils.test_utils.cache

• ClearCacheMixin() - TestCase mixin to clear the Django cache in setUp/tearDown
• MockCache() - Mock Django cache backend, so it's easy to check/manipulate the cache content

bx_django_utils.test_utils.content_types

• ContentTypeCacheFixMixin() - TestCase mixin to fill the ContentType cache to avoid flaky database queries.

bx_django_utils.test_utils.datetime

• MockDatetimeGenerator() - Mock django timezone.now() with generic time stamps in tests.

bx_django_utils.test_utils.html_assertion

• HtmlAssertionMixin() - Unittest mixin class with useful assertments around Django test client tests
• assert_html_response_snapshot() - Assert a HttpResponse via snapshot file using assert_html_snapshot() from bx_py_utils.

bx_django_utils.test_utils.model_clean_assert

• AssertModelCleanCalled() - Context manager for assert that full_clean() was called for every model instance.
• CleanMock() - Track if full_clean() was called.

bx_django_utils.test_utils.users

• assert_permissions() - Check user permissions.
• filter_permission_names() - Generate a Permission model query filtered by names, e.g.: ['<app_label>.', ...]
• make_max_test_user() - Create a test user with all permissions except the {exclude_permissions} ones.
• make_minimal_test_user() - Create a test user and set given permissions.
• make_test_user() - Create a test user and set given permissions.

bx_django_utils.view_utils.dynamic_menu_urls

• DynamicViewMenu() - Simple storage for store information about views/urls to build a menu.

developing

To start developing e.g.:

~$ git clone https://github.com/boxine/bx_django_utils.git
~$ cd bx_django_utils
~/bx_django_utils$ make
help                 List all commands
install-poetry       install or update poetry via pip
install              install via poetry
update               Update the dependencies as according to the pyproject.toml file
lint                 Run code formatters and linter
fix-code-style       Fix code formatting
tox-listenvs         List all tox test environments
tox                  Run pytest via tox with all environments
pytest               Run pytest
pytest-ci            Run pytest with CI settings
publish              Release new version to PyPi
docker-test          Run tests in docker
makemessages         Make and compile locales message files
start-dev-server     Start Django dev. server with the test project
clean                Remove created files from the test project (e.g.: SQlite, static files)

You can start the test project with the Django developing server, e.g.:

~/bx_django_utils$ make start-dev-server

This is a own manage command, that will create migrations files from our test app, migrate, collectstatic and create a super user if no user exists ;)

If you like to start from stretch, just delete related test project files with:

~/bx_django_utils$ make clean

...and start the test server again ;)

update this README

This README will be updated via tests ;) But currently this is only done with Python 3.9 ! If your system Python version is not 3.9: Install this Python version and switch to it, e.g.:

~/bx_django_utils$ poetry env use python3.9
~/bx_django_utils$ make install
~/bx_django_utils$ make pytest

License

MIT. Patches welcome!

About us

We’ve been rethinking the listening experience for kids and have created an ecosystem where haptic and listening experience are combined via smart technology - the Toniebox.

We are constantly looking for engineers to join our team in different areas. If you’d be interested in contributing to our platform, have a look at: https://tonies.com/jobs/

Links

• https://pypi.org/project/bx-django-utils/