rishinkaku/bx_django_utils

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.admin_extra_views

Django Admin extra views: https://github.com/boxine/bx_django_utils/blob/master/bx_django_utils/admin_extra_views/README.md

bx_django_utils.admin_extra_views.admin_config

Activate "ExtraViewAdminSite" by set this as default admin site

• CustomAdminConfig() - Change Django Admin Site to ExtraViewAdminSite for the extra views.

bx_django_utils.admin_extra_views.apps

• AdminExtraViewsAppConfig() - App config to auto discover all extra views.

bx_django_utils.admin_extra_views.conditions

• only_staff_user() - Pass only active staff users. The default condition for all admin extra views.

bx_django_utils.admin_extra_views.datatypes

• AdminExtraMeta() - Stores information for pseudo app and pseudo models.
• PseudoApp() - Represents information about a Django App. Instance must be pass to @register_admin_view()

bx_django_utils.admin_extra_views.management.commands.admin_extra_views

• Command() - Manage command "admin_extra_views": Info about registered admin extra views

bx_django_utils.admin_extra_views.registry

• AdminExtraViewRegistry() - Hold all information about all admin extra views to expand urls and admin app list.
• register_admin_view() - Decorator to add a normal view as pseudo App/Model to the admin.

bx_django_utils.admin_extra_views.site

• ExtraViewAdminSite() - An AdminSite object encapsulates an instance of the Django admin application, ready

bx_django_utils.admin_extra_views.tests.test_admin_extra_views

• AdminExtraViewsTestCase() - Integrations tests for Admin Extra Views.

bx_django_utils.admin_extra_views.utils

• iter_admin_extra_views_urls() - Iterate over all registered admin extra view urls.
• reverse_admin_extra_view() - Get the URL of a Admin Extra View, e.g.: url=reverse_admin_extra_view(YouAdminExtraView)

bx_django_utils.admin_extra_views.views

• Redirect2AdminExtraView() - Redirect to a Admin Extra Views.

bx_django_utils.admin_utils.admin_urls

Helpers to build Admin URLs

• admin_change_url() - Shortcut to generate Django admin "change" url for a model instance.
• admin_changelist_url() - Shortcut to generate Django admin "changelist" url for a model or instance.
• admin_delete_url() - Shortcut to generate Django admin "delete" url for a model instance.
• admin_history_url() - Shortcut to generate Django admin "history" url for a model instance.
• admin_model_url() - Build Admin change, add, changelist, etc. links with optional filter parameters.

bx_django_utils.admin_utils.filters

• ExistingCountedListFilter() - Advanced SimpleListFilter that list only existing filter values with counts.
• NotAllSimpleListFilter() - Similar to SimpleListFilter, but don't add "All" choice.

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.cached_dataclasses

• CachedDataclassBase() - A Base dataclass that can be easy store/restore to Django cache.

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.feature_flags

Feature flags: https://github.com/boxine/bx_django_utils/blob/master/bx_django_utils/feature_flags/README.md

bx_django_utils.feature_flags.admin_views

• ManageFeatureFlagsBaseView() - Base admin extra view to manage all existing feature flags in admin.

bx_django_utils.feature_flags.data_classes

• FeatureFlag() - A feature flag that persistent the state into django cache/database.

bx_django_utils.feature_flags.test_utils

• FeatureFlagTestCaseMixin() - Mixin for TestCase that will change FeatureFlag entries. To make the tests atomic.
• get_feature_flag_states() - Collects information about all registered feature flags and their current state.

bx_django_utils.filename

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

bx_django_utils.http

• build_url_parameters() - Return an encoded string of all given parameters.

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.
• FieldUpdate() - Information about updated model field values. Used for CreateOrUpdateResult.update_info
• 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
• update_model_field() - Default callback for create_or_update2() to set a changed model field value and expand CreateOrUpdateResult

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.accessors

• dict_get() - Returns the wanted member of a dict-like container, or an empty string

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.fixtures

Utilities to manage text fixtures in JSON files.

• BaseFixtures() - Base class for JSON dump fixtures.
• FixturesRegistry() - Registry to collect a list of all existing fixture classes.
• RenewAllFixturesBaseCommand() - A base Django manage command to renew all existing fixture JSON dump files
• SerializerFixtures() - Helper to store/restore model instances serialized into a JSON file.
• autodiscover() - Register all fixtures by import all /fixtures//*.py files

bx_django_utils.test_utils.forms

• AssertFormFields() - Helper to check the existing form fields.

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.
• get_django_name_suffix() - Returns a short Django version string, useable for snapshot "name_suffix" e.g.: "django42"

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.playwright

Use Playwright in Unittest + Fast Django user login

• PlaywrightConfig() - PlaywrightTestCase config from environment (PWBROWSER, PWHEADLESS, PWSKIP, PWSLOWMO)
• PlaywrightTestCase() - StaticLiveServerTestCase with helpers for writing frontend tests using Playwright.

bx_django_utils.test_utils.users

• assert_permissions() - Check user permissions.
• assert_user_properties() - Check a user instance with all properties and password (optional)
• 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.translation

• FieldTranslation() - Dict-like container that maps language codes to a translated string.
• TranslationField() - A field designed to hold translations for a given set of language codes.
• TranslationFieldAdmin() - Provides drop-in support for ModelAdmin classes that want to display TranslationFields
• TranslationFormField() - Default form field for TranslationField.
• TranslationSlugField() - A unique translation slug field, useful in combination with TranslationField()
• create_or_update_translation_callback() - Callback for create_or_update2() for TranslationField, that will never remove existing translation.
• expand_languages_codes() - Build a complete list if language code with and without dialects.
• get_user_priorities() - Collect usable language codes the current user
• make_unique() - Flat args and remove duplicate entries while keeping the order intact.
• merge_translations() - Merge two FieldTranslation and ignore all empty/None values, e.g.:
• remove_empty_translations() - Remove all empty/None from a FieldTranslation, e.g.:
• user_language_priorities() - Returns the order in which to attempt resolving translations of a FieldTranslation model field.
• validate_unique_translations() - Deny creating non-unique translation: Creates ValidationError with change list search for doubled entries.

bx_django_utils.user_timezone

Automatic local user timezone: https://github.com/boxine/bx_django_utils/blob/master/bx_django_utils/user_timezone/README.md

bx_django_utils.user_timezone.apps

• UserTimezoneAppConfig() - Django app to set the user local time zone.

bx_django_utils.user_timezone.humanize

• human_timezone_datetime() - Render a datetime with timezone information.

bx_django_utils.user_timezone.middleware

• UserTimezoneMiddleware() - Activate Timezone by "UserTimeZone" cookie

bx_django_utils.user_timezone.templatetags.user_timezone

• humane_timezone_dt() - Template filter to render a datetime with timezone information.

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 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 unittests via tox with all environments
test                 Run unittests
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)
playwright-install   Install test browser for Playwright tests
playwright-inspector Run Playwright inspector
playwright-tests     Run only the Playwright tests

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!

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/