Lessons about Django (page 17)

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

Today I learned
In admin.ModelAdmin, a field can either be in prepopulated_fields or readonly_fields, but not in both.
Lais VarejãoApril 26, 2017
docs.djangoproject.com
You can pass a queryset to prefetch_related (and select_related): Restaurant.objects.prefetch_related(Prefetch('pizzas__toppings')) #django.db.models.Prefetch
Filipe XimenesApril 26, 2017
docs.djangoproject.com
If you need to execute more complex queries with OR statements you can use Q objects: #complex-lookups-with-q-objects
Rebeca SaraiApril 20, 2017
Today I learned
Use {{ value|truncatechars:15 }} to truncate a string in django templates
Rebeca SaraiApril 19, 2017
Today I learned
You can set a default ordering for a object by setting ordering = ['field_name'] as a metadata option
Lais VarejãoApril 19, 2017
speakerdeck.com
Good talk about how to write a view in Django:
If you quickly want to assess a Django developer's competence, look at their views modules. Despite being one of the first Django components everyone l…
Flávio JuvenalApril 17, 2017
github.com
Django search language to use on search fields:
Flávio JuvenalApril 13, 2017
medium.com
How to turn Django Admin into a lightweight dashboard:
Flávio JuvenalApril 6, 2017
kevinmahoney.co.uk
A Few Django ORM Mistakes
Filipe XimenesMarch 28, 2017
lukeplant.me.uk
Avoid Django's GenericForeignKey:
Flávio JuvenalMarch 27, 2017
github.com
django-lazysignup allows users to interact with a site as if they were authenticated users, but without signing up: Useful to increase conversion.
Flávio JuvenalMarch 27, 2017
docs.djangoproject.com
Django has Conditional View Processing tools for conditional requests (ETag If-match, If-modified-since):
Flávio JuvenalMarch 25, 2017
django-sudo.readthedocs.io
django-sudo is an app to force users re-insert their passwords before doing dangerous actions:
Flávio JuvenalMarch 25, 2017
github.com
readthedocs.org code is written in Django and it's open-
Flávio JuvenalMarch 25, 2017
django-downloadview.readthedocs.io
Useful library for serving files with Django:
Flávio JuvenalMarch 25, 2017

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Lessons about Django (page 17)

In `admin.ModelAdmin`, a field can either be in `prepopulated_fields` or `readonly_fields`, but not in both.

In `admin.ModelAdmin`, a field can either be in `prepopulated_fields` or `readonly_fields`, but not in both.

You can pass a queryset to prefetch_related (and select_related): `Restaurant.objects.prefetch_related(Prefetch('pizzas__toppings'))` #django.db.models.Prefetch

You can pass a queryset to prefetch_related (and select_related): `Restaurant.objects.prefetch_related(Prefetch('pizzas__toppings'))` #django.db.models.Prefetch

If you need to execute more complex queries with OR statements you can use Q objects: #complex-lookups-with-q-objects

If you need to execute more complex queries with OR statements you can use Q objects: #complex-lookups-with-q-objects

Use {{ value|truncatechars:15 }} to truncate a string in django templates

Use {{ value|truncatechars:15 }} to truncate a string in django templates

You can set a default ordering for a object by setting `ordering = ['field_name']` as a metadata option

You can set a default ordering for a object by setting `ordering = ['field_name']` as a metadata option

Good talk about how to write a view in Django:

Good talk about how to write a view in Django:

Django search language to use on search fields:

Django search language to use on search fields:

How to turn Django Admin into a lightweight dashboard:

How to turn Django Admin into a lightweight dashboard:

A Few Django ORM Mistakes

A Few Django ORM Mistakes

Avoid Django's GenericForeignKey:

Avoid Django's GenericForeignKey:

django-lazysignup allows users to interact with a site as if they were authenticated users, but without signing up: Useful to increase conversion.

django-lazysignup allows users to interact with a site as if they were authenticated users, but without signing up: Useful to increase conversion.

Django has Conditional View Processing tools for conditional requests (ETag If-match, If-modified-since):

Django has Conditional View Processing tools for conditional requests (ETag If-match, If-modified-since):

django-sudo is an app to force users re-insert their passwords before doing dangerous actions:

django-sudo is an app to force users re-insert their passwords before doing dangerous actions:

readthedocs.org code is written in Django and it's open-

readthedocs.org code is written in Django and it's open-

Useful library for serving files with Django:

Useful library for serving files with Django:

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

Lessons about Django (page 17)

In admin.ModelAdmin, a field can either be in prepopulated_fields or readonly_fields, but not in both.

You can pass a queryset to prefetch_related (and select_related): Restaurant.objects.prefetch_related(Prefetch('pizzas__toppings')) #django.db.models.Prefetch

If you need to execute more complex queries with OR statements you can use Q objects: #complex-lookups-with-q-objects

Use {{ value|truncatechars:15 }} to truncate a string in django templates

You can set a default ordering for a object by setting ordering = ['field_name'] as a metadata option

Good talk about how to write a view in Django:

Django search language to use on search fields:

How to turn Django Admin into a lightweight dashboard:

A Few Django ORM Mistakes

Avoid Django's GenericForeignKey:

django-lazysignup allows users to interact with a site as if they were authenticated users, but without signing up: Useful to increase conversion.

Django has Conditional View Processing tools for conditional requests (ETag If-match, If-modified-since):

django-sudo is an app to force users re-insert their passwords before doing dangerous actions:

readthedocs.org code is written in Django and it's open-

Useful library for serving files with Django:

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

In `admin.ModelAdmin`, a field can either be in `prepopulated_fields` or `readonly_fields`, but not in both.

You can pass a queryset to prefetch_related (and select_related): `Restaurant.objects.prefetch_related(Prefetch('pizzas__toppings'))` #django.db.models.Prefetch

You can set a default ordering for a object by setting `ordering = ['field_name']` as a metadata option

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