bx-django-utils 7

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.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.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. (Strip all empty lines from html)

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
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
tox-py36             Run pytest via tox with *python v3.6*
tox-py37             Run pytest via tox with *python v3.7*
tox-py38             Run pytest via tox with *python v3.8*
tox-py39             Run pytest via tox with *python v3.9*
pytest               Run pytest
pytest-ci            Run pytest with CI settings
publish              Release new version to PyPi
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 ;)

License

MIT. Patches welcome!

Links

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