Lessons about Django (page 18)

The links, tools and tips our engineers and designers share with each other, one “today I learned” at a time.

lessons shared: 288
people sharing: 29
database started in: 2016

github.com
Add recurring dates in your project with django-recurrence:
Utility for working with recurring dates in Django. - jazzband/django-recurrence
Rebeca SaraiMarch 23, 2017
forum.djangoproject.com
On Django, be careful when doing consecutive…
On Django, be careful when doing consecutive queryset.update()s. Each one executes a new UPDATE ... WHERE SQL query. There are cases where the second update might not change anything because the first one changed the rows already. Always check the original queryset filters/excludes to see if they are affected by the updates.
Flávio JuvenalMarch 22, 2017
github.com
Using django.js? Be careful with JS_CACHE_DURATION setting! It defaults to 24 hours. This means your updates on URLs will b...
Using django.js? Be careful with JS_CACHE_DURATION setting! It defaults to 24 hours. This means your updates on URLs will be delayed on 1 day to the frontend! We recommend setting JS_CACHE_DURATION to 0. Even better, use instead.
Flávio JuvenalMarch 22, 2017
Link offline
github.com · offline
diff versions of a model with django-reversion-compare:
Flávio JuvenalMarch 14, 2017
github.com
Easy webhooks for Django with django-rest-hooks:
:love_letter: Add webhook subscriptions to your Django app. - zapier/django-rest-hooks
Flávio JuvenalMarch 14, 2017
github.com
Use drf-url-filters to apply filters on DRF querysets using query params:
A django app to apply filters on drf querysets using query params with validations using voluptuous. - manjitkumar/drf-url-filters
Flávio JuvenalMarch 14, 2017
github.com
django-role-permissions now supports multiple role assignment!
Filipe XimenesMarch 9, 2017
Today I learned
Avoid using user.is_anonymous in templates. If for some reason the user is not set it will evaluate to False and this could expose sensitive content. Use not is_authenticated instead.
André EricsonFebruary 16, 2017
youtube.com
Talk about metrics on Djangocon US:
André EricsonFebruary 15, 2017
Today I learned
You can use django.core.mail.outbox when testing your mail in django. This way, you can check the content of your emails.
André EricsonFebruary 15, 2017
gist.github.com
This gist can greatly improve speed of tests that sends email in Django.
Tests with email sending speed boost. GitHub Gist: instantly share code, notes, and snippets.
André EricsonFebruary 13, 2017
Today I learned
Avoid the overhead of having the default <select> in Django Admin with all the related instances (ForeignKey or ManyToMany)...
Avoid the overhead of having the default <select> in Django Admin with all the related instances (ForeignKey or ManyToMany) just listing them in ModelAdmin.raw_id_fields. I've just done it and my admin change pages are being loaded up to 10x faster, avoiding a lot of request timed out error.
Victor CarriçoFebruary 8, 2017
code.djangoproject.com
Using Django? Be careful with custom values for <meta name="referrer">! Yes, a HTML tag can break Django CSRF protection: ...
Using Django? Be careful with custom values for <meta name="referrer">! Yes, a HTML tag can break Django CSRF protection: (PS: note old browsers might misbehave with new <meta name="referrer"> values too! Better avoid it.)
Flávio JuvenalFebruary 8, 2017
Today I learned
Avoid catching ObjectDoesNotExist exception, when you know the model use Model.DoesNotExist.
André EricsonFebruary 3, 2017
Today I learned
With Django's sitemaps framework, you can use python manage.py ping_google[/sitemap.xml] to let it know to reindex your site
Lais VarejãoJanuary 27, 2017

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Lessons about Django (page 18)

Add recurring dates in your project with django-recurrence:

Add recurring dates in your project with django-recurrence:

On Django, be careful when doing consecutive…

On Django, be careful when doing consecutive…

Using django.js? Be careful with `JS_CACHE_DURATION` setting! It defaults to 24 hours. This means your updates on URLs will b...

Using django.js? Be careful with `JS_CACHE_DURATION` setting! It defaults to 24 hours. This means your updates on URLs will b...

diff versions of a model with django-reversion-compare:

diff versions of a model with django-reversion-compare:

Easy webhooks for Django with django-rest-hooks:

Easy webhooks for Django with django-rest-hooks:

Use drf-url-filters to apply filters on DRF querysets using query params:

Use drf-url-filters to apply filters on DRF querysets using query params:

django-role-permissions now supports multiple role assignment!

django-role-permissions now supports multiple role assignment!

Avoid using `user.is_anonymous` in templates. If for some reason the user is not set it will evaluate to False and this could expose sensitive content. Use `not is_authenticated` instead.

Avoid using `user.is_anonymous` in templates. If for some reason the user is not set it will evaluate to False and this could expose sensitive content. Use `not is_authenticated` instead.

Talk about metrics on Djangocon US:

Talk about metrics on Djangocon US:

You can use django.core.mail.outbox when testing your mail in django. This way, you can check the content of your emails.

You can use django.core.mail.outbox when testing your mail in django. This way, you can check the content of your emails.

This gist can greatly improve speed of tests that sends email in Django.

This gist can greatly improve speed of tests that sends email in Django.

Avoid the overhead of having the default `<select>` in Django Admin with all the related instances (ForeignKey or ManyToMany)...

Avoid the overhead of having the default `<select>` in Django Admin with all the related instances (ForeignKey or ManyToMany)...

Using Django? Be careful with custom values for `<meta name="referrer">`! Yes, a HTML tag can break Django CSRF protection: ...

Using Django? Be careful with custom values for `<meta name="referrer">`! Yes, a HTML tag can break Django CSRF protection: ...

Avoid catching ObjectDoesNotExist exception, when you know the model use Model.DoesNotExist.

Avoid catching ObjectDoesNotExist exception, when you know the model use Model.DoesNotExist.

With Django's sitemaps framework, you can use `python manage.py ping_google[/sitemap.xml]` to let it know to reindex your site

With Django's sitemaps framework, you can use `python manage.py ping_google[/sitemap.xml]` to let it know to reindex your site

Found it useful?
Let’s put it to work.

Lessons about Django (page 18)

Add recurring dates in your project with django-recurrence:

On Django, be careful when doing consecutive…

Using django.js? Be careful with JS_CACHE_DURATION setting! It defaults to 24 hours. This means your updates on URLs will b...

diff versions of a model with django-reversion-compare:

Easy webhooks for Django with django-rest-hooks:

Use drf-url-filters to apply filters on DRF querysets using query params:

django-role-permissions now supports multiple role assignment!

Avoid using user.is_anonymous in templates. If for some reason the user is not set it will evaluate to False and this could expose sensitive content. Use not is_authenticated instead.

Talk about metrics on Djangocon US:

You can use django.core.mail.outbox when testing your mail in django. This way, you can check the content of your emails.

This gist can greatly improve speed of tests that sends email in Django.

Avoid the overhead of having the default <select> in Django Admin with all the related instances (ForeignKey or ManyToMany)...

Using Django? Be careful with custom values for <meta name="referrer">! Yes, a HTML tag can break Django CSRF protection: ...

Avoid catching ObjectDoesNotExist exception, when you know the model use Model.DoesNotExist.

With Django's sitemaps framework, you can use python manage.py ping_google[/sitemap.xml] to let it know to reindex your site

Found it useful? Let’s put it to work.

Using django.js? Be careful with `JS_CACHE_DURATION` setting! It defaults to 24 hours. This means your updates on URLs will b...

Avoid using `user.is_anonymous` in templates. If for some reason the user is not set it will evaluate to False and this could expose sensitive content. Use `not is_authenticated` instead.

Avoid the overhead of having the default `<select>` in Django Admin with all the related instances (ForeignKey or ManyToMany)...

Using Django? Be careful with custom values for `<meta name="referrer">`! Yes, a HTML tag can break Django CSRF protection: ...

With Django's sitemaps framework, you can use `python manage.py ping_google[/sitemap.xml]` to let it know to reindex your site

Found it useful?
Let’s put it to work.