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README.md

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+Django formset tutorial
+==================
+
+This is a simple django app that will demonstrate how to use django formset. I recently wanted to use the formset in my work but i couldn't find any good working example. 
+I ended doing a lot of trial and error and looked at the django source code. At tne end, I really enjoyed using this feature but wish the documentation would be better now. This is my small attempt to make it better for someone else. 
+
+I will use a simple django app called mybook to demostrate the different usages of formset. The model and the scenario is faily simple. 
+
+Mybook is a social network app. In the app, you can edit your social profile. One section of the profile is about your family. 
+You can add as family member as you like. For each family member, you need to specify family member's relationship with you.  
+
+
+example 1
+----
+

export_django_setting.sh

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+#!/usr/bin/env bash
+export DJANGO_SETTINGS_MODULE=mybook.settings

manage.py

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+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mybook.settings")
+
+    from django.core.management import execute_from_command_line
+
+    execute_from_command_line(sys.argv)

mybook/settings.py

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+"""
+Django settings for mybook project.
+
+Generated by 'django-admin startproject' using Django 1.9.6.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.9/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/1.9/ref/settings/
+"""
+
+import os
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/1.9/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'w4)03ckn%^uu2^p(gv(l)ykl2jf9cz$=fw-mzypzzn-sz*cgs9'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'myprofile',
+]
+
+MIDDLEWARE_CLASSES = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'mybook.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'mybook.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/1.9/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/1.9/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/1.9/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/1.9/howto/static-files/
+
+STATIC_URL = '/static/'
+STATIC_ROOT = os.path.join(BASE_DIR, 'static')

mybook/urls.py

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+"""mybook URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/1.9/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.conf.urls import url, include
+    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
+"""
+from django.conf.urls import url
+from django.contrib import admin
+
+urlpatterns = [
+    url(r'^admin/', admin.site.urls),
+]

mybook/wsgi.py

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+"""
+WSGI config for mybook project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.9/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mybook.settings")
+
+application = get_wsgi_application()

myprofile/admin.py

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+from django.contrib import admin
+
+from .models import Profile, FamilyMember
+
+admin.site.register(Profile)
+admin.site.register(FamilyMember)

myprofile/apps.py

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+from __future__ import unicode_literals
+
+from django.apps import AppConfig
+
+
+class MyprofileConfig(AppConfig):
+    name = 'myprofile'

myprofile/models.py

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+from __future__ import unicode_literals
+
+
+from django.db import models
+from django.utils import timezone
+
+
+class Profile(models.Model):
+    first_name = models.CharField(max_length=100)
+    last_name = models.CharField(max_length=100)
+    created_date = models.DateTimeField(default=timezone.now)
+
+
+class FamilyMember(models.Model):
+    profile = models.ForeignKey(Profile)
+    member_name = models.CharField(max_length=100)
+    relationship_name = models.CharField(max_length=100)
+

myprofile/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

myprofile/views.py

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+from django.shortcuts import render
+
+# Create your views here.