seulcoding

기존에 값이 있는 db에 unique한 필드를 추가하고 migration을 하려고 하면 다음과 같은 내용이 나온다.Please select a fix: 1) Provide a one-off default now (will be set on all existing rows with a null value for this column) 2) Quit, and let me add a default in models.py Select an option: 1 Please enter the default value now, as valid Python The datetime and django.utils.timezone modules are available, so you can do e.g. timezone.no..

Use Lengthfrom django.db.models.functions import Length qs = queryset.annotate(text_len=Length('text_field')).filter(text_len__gt=10) Only can use Django >= 1.8Use extraqs = queryset.extra(where=["CHAR_LENGTH(text_field) > 10"]) Use regex inside filterqs = queryset.filter(text_field__regex=r'.{10}.*') Register Length to CharField lookupfrom django.db.models import CharField from django.db.models..

Inherit AuthenticationFormInherit django.contrib.auth.forms.AuthenticationForm and customize clean() method.from django.contrib.auth.forms import AuthenticationForm from django.contrib.auth import authenticate from django import forms from my_user.models import MyUser class CustomLoginForm(AuthenticationForm): error_messages = { 'invalid_login': "아이디 또는 비밀번호를 다시 확인하세요.\n등록되지 않은 아이디이거나, 아이디 또는 비밀..

1. add attrs in widgetnumber = forms.CharField(widget=forms.TextInput(attrs={'autocomplete': 'off', 'type': 'number'})) 2. use __init__class YourModelForm(forms.ModelForm): def __init__(self, *args, **kwargs): super(YourModelForm, self).__init__(*args, **kwargs) self.fields['number'].widget.attrs.update({ 'autocomplete': 'off', 'type': 'number', }) 3. use Metaclass YourModelForm(ModelForm): clas..

Recently I made chat function with django channels 2.0It’s bit easy to create function in local, but I encountered obstacle while deploy it to production server.I have to use asgi for deploy socket. For that, I use daphne instead of gunicorn or uwsgi.Install redis in ubuntuFirst, just redis. It’s not a hard work.sudo apt-get install redis-server # then start server redis-server start # can acces..

InstallInstall with pippip install django-ckeditor Add ckedtor to INSTALLED_APPSAnd collectstatic command for add ckeditor static files.python manage.py collectstatic In dev environment, just copy ckeditor directory from staticfiles after collectstaticAnd add CKEDITOR_BASEPATH for ckedtor directory unber staticfiles (STATIC_ROOT)CKEDITOR_BASEPATH = "/static/ckeditor/ckeditor" And add window.CKED..

Recently I use django-allauth. (github here). It’s useful for social login, and upgrading functions for default login. When using logout, allauth basically supply logout confirm page. If you want to remove this page, and just logout when get (/accounts/logout), add this to settings.py ACCOUNT_LOGOUT_ON_GET = True

Recently, I made chat service with django channels. It’s not temporary chat like CS, so I have to save and load all chat logs and messages.First, I try to use redis to save those data.But it’s not that big project, and I want to use django ORM to those data.I found good library to make multiple table per one model. I want to make multiple tables for Message model.architect enhances ORMs with mor..

class MyModelAdmin(admin.ModelAdmin): ... def changelist_view(self, request, extra_context=None): extra_context = extra_context or {} extra_context['my_context'] = 'extra test context' return super(MyModelAdmin, self).changelist_view(request, extra_context=extra_context) more detail check django docs

While using django admin list_filter, it only support one select.For using multiple choices, you can modify URL.?status__exact=a ?status__in=a%2Cb You can filter by using ,(comma).%2C equals to , (comma)And have to add UI cause django admin not support multiple UI.So I customize change_list.html from django admin (for my case, I use suit for admin, so customize change_list.html in suit){% extend..