| class Bar: | |
| def __init__(self): | |
| self.parent_class_attr_name = None | |
| class LetClassAttributesKnowTheirName(type): | |
| def __new__(mcs, name, bases, attributes): | |
| for attr_name, attr_value in attributes.items(): | |
| if isinstance(attr_value, Bar): | |
| attr_value.parent_class_attr_name = attr_name |
| {% extends "admin/base_site.html" %} | |
| {% block usertools %} | |
| {% url 'admin:index' as admin_index_url %} | |
| {% if request.get_full_path == admin_index_url %} | |
| <input | |
| type="text" | |
| id="admin_base_search" | |
| placeholder="Search..." | |
| autofocus |
--disable-web-security VS --user-data-dir
Also see: https://peter.sh/experiments/chromium-command-line-switches/#disable-web-security
I came across an issue with running google-chrome to render some HTML file, where we are loading fonts from an external URL and to avoid CORS screaming at us we configured it like:
google-chrome --user-data-dir=/tmp/ --disable-web-security
| # Changing the through= part of a models.ManyToManyField() fails to migrate, | |
| # as Django won't let us do this in a single step. We can manually workaround | |
| # with several migration steps though, as shown below. | |
| # | |
| # Based on Django 3.2 | |
| # 1) Initial state of models.py | |
| from django.db import models |
| # Django's models.FileField stores FieldFile objects. These have both .name | |
| # and .path attributes, which however are not exactly intuitive: | |
| my_instance.my_filefield.name | |
| # E.g. whatever/123/foo.png | |
| # Returns the path relative to MEDIA_ROOT, not the filename! | |
| # For the filename do e.g. os.path.basename(my_instance.my_filefield.name) | |
| my_instance.my_filefield.path | |
| # E.g. /var/www/media/whatever/123/foo.png |
| # https://pypi.org/project/memory-profiler/ | |
| pip install -U memory_profiler | |
| mprof run --include-children --attach <pid> | |
| mprof plot |
| """A script to help update many querycount assertions in code quickly. | |
| Requirements: | |
| pip install redbaron | |
| Deprecation note: | |
| redbaron (based on baron) is somewhat unmaintained and only supports | |
| Python grammar u to version 3.7, so for newer Python versions we may |
| document.querySelector('.v-dialog--active').__vue__.$options._renderChildren[0].context.isActive = false |
| <head> | |
| <link rel="stylesheet" href="/static/css/dropzone.css"> | |
| <script type="text/javascript" src="/static/js/dropzone.js"></script> | |
| </head> | |
| <form | |
| id="my-dropzone-form" | |
| class="dropzone" | |
| action="/cannot-be-empty-but-is-not-used-instead-see-submit.js" | |
| ></form> |
| $ = django.jQuery; | |
| for (const formRow of $('.form-row')) { | |
| const label = formRow.getElementsByTagName('label')[0]; | |
| const relatedWidgetWrapper = formRow.querySelector('.related-widget-wrapper'); | |
| if (!label || !relatedWidgetWrapper) { | |
| continue; | |
| } | |
| const anchor = relatedWidgetWrapper.querySelector('a'); | |
| const urlWithoutParams = anchor.href.split('?')[0]; |
