<DJANGO>[rest_framework & Func based view]

[rest_framework & Func based view]

참고 사이트

http://www.django-rest-framework.org/tutorial/1-serialization/

1. 기능

- 목록 조회 [C]

- 상세 조회, 등록, 수정, 삭제 [CRUD]

- body = year/month/day/mainmenu/submain/author

2. Main API

- GET       localhost:8888/diet/diet_list/?year=????&month=?

- POST localhost:8888/diet/diet_list/

param	format	desc
year	int (ex : yyyy)	년
month	int (ex : mm)	월
day	int (ex : dd)	일
mainmenu	str	메뉴1
submenu	str (split ',')	메뉴2
author	str	작성자

3. App API

- GET      localhost:8888/diet/diet_list/?pk=?

- PUT      localhost:8888/diet/diet_detail/?/

param	format	desc
year	int (ex : yyyy)	년
month	int (ex : mm)	월
day	int (ex : dd)	일
mainmenu	str	메뉴1
submenu	str (split ',')	메뉴2
author	str	작성자

- DELETE  localhost:8888/diet/diet_detail/?/

4. 소스

- main settings.py

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/1.11/howto/deployment/checklist/
 
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'm!ey!sw@6j6lzws3&bi7ig=!%+z7-!-8b5#x!+x!-dwi#l#9bp'
 
# 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',
    'rest_framework',
    'dietmenu.apps.DietmenuConfig',
]
 
MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
 
ROOT_URLCONF = 'test_diet.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 = 'test_diet.wsgi.application'
 
 
# Database
# https://docs.djangoproject.com/en/1.11/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/1.11/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/1.11/topics/i18n/
 
LANGUAGE_CODE = 'ko-kr'
#LANGUAGE_CODE = 'en-us'
 
TIME_ZONE = 'Asia/Seoul'
#TIME_ZONE = 'UTC'
 
USE_I18N = True
 
USE_L10N = True
 
USE_TZ = True
 
 
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.11/howto/static-files/
 
STATIC_URL = '/static/'

- main urls.py

from django.conf.urls import url, include
from django.contrib import admin
 
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^diet/', include('dietmenu.urls')),
]

- app models.py

from django.db import models
 
 
class FlowerDiet01(models.Model):
    year = models.CharField(max_length=16, null=False)
    month = models.CharField(max_length=8, null=False)
    day = models.CharField(max_length=8, null=False)
    mainmenu = models.CharField(max_length=128, null=False)
    submenu = models.TextField(null=False)
    author = models.CharField(max_length=32, null=False)
    created = models.DateTimeField(auto_now_add=True, auto_now=False)
    modified = models.DateTimeField(auto_now_add=False, auto_now=True)
 
    class Meta:
        ordering = ['created','year','month','day']
        db_table = 'flower_diet'
 
    def __str__(self):
        return self.mainmenu

- app serializers.py

from django.utils import timezone
from rest_framework import serializers
 
from dietmenu.models import FlowerDiet01
 
import uuid
 
 
class FlowerDietSerializer(serializers.Serializer):
    id       = serializers.IntegerField(read_only=True)
    year     = serializers.CharField()
    month    = serializers.CharField()
    day      = serializers.CharField()
    mainmenu = serializers.CharField()
    submenu  = serializers.CharField()
    author   = serializers.CharField()
    created  = serializers.DateTimeField(default=uuid.uuid1())
    modified  = serializers.DateTimeField(default=timezone.now())
 
    class Meta:
        model = FlowerDiet01
        fields = '__all__'
 
    def create(self, validated_data):
        return FlowerDiet01.objects.create(**validated_data)
 
    def update(self, instance, validated_data):
        instance.year     = validated_data.get('year', instance.year)
        instance.month    = validated_data.get('month', instance.month)
        instance.day      = validated_data.get('day', instance.day)
        instance.mainmenu = validated_data.get('mainmenu', instance.mainmenu)
        instance.submenu  = validated_data.get('submenu', instance.submenu)
        instance.author   = validated_data.get('author', instance.author)
        instance.save()
        return instance

- app urls.py

from django.conf.urls import url
 
from dietmenu import views
 
 
urlpatterns = [
    url(r'^diet_list/$', views.flowerdiet_list),
    url(r'^diet_detail/(?P<pk>\d+)/$', views.flowerdiet_detail),
]

- app views.py

from rest_framework import status
from rest_framework.decorators import api_view
from rest_framework.response import Response
from rest_framework.renderers import JSONRenderer
 
from dietmenu.models import FlowerDiet01
from dietmenu.serializers import FlowerDietSerializer
 
# Create your views here.
@api_view(['GET','POST'])
def flowerdiet_list(request):
    if request.method == 'GET':
        return __get_flower_diet_list01(request)
    elif request.method == 'POST':
        return __post_flower_diet_list01(request)
    else:
        pass
 
@api_view(['GET','PUT','DELETE'])
def flowerdiet_detail(request, pk):
    if request.method == 'GET':
        return __get_flower_diet_detail01(request, pk)
    elif request.method == 'PUT':
        return __put_flower_diet_detail01(request, pk)
    elif request.method == 'DELETE':
        return __del_flower_diet_detail01(request, pk)
    else:
        pass
 
 
def __get_flower_diet_list01(request):
    params = list_to_string(request.query_params)
    print(params)
    try:
        fdl = FlowerDiet01.objects.filter(year=int(params['year']), month=int(params['month']))
    except FlowerDiet01.DoesNotExist:
        return Response(status=status.HTTP_404_NOT_FOUND)
    serializer = FlowerDietSerializer(fdl, many=True)
    rs = JSONRenderer().render(serializer.data)
    print(rs)
    return Response(data=rs)
 
 
def __post_flower_diet_list01(request):
    serializer = FlowerDietSerializer(data=request.data)
    if serializer.is_valid():
        vd = serializer.validated_data
        serializer.create(vd)
        serializer.save()
        return Response(data='got it', status=status.HTTP_201_CREATED)
    return Response(data='failed', status=status.HTTP_400_BAD_REQUEST)
 
 
 
def __get_flower_diet_detail01(request, pk):
    try:
        fdl_detail = FlowerDiet01.objects.get(id=pk)
    except FlowerDiet01.DoesNotExist:
        return Response(status=status.HTTP_404_NOT_FOUND)
    serializer = FlowerDietSerializer(fdl_detail)
    return Response(JSONRenderer().render(serializer.data))
 
 
def __put_flower_diet_detail01(request, pk):
    fdl = FlowerDiet01.objects.get(id=int(pk))
    serializer = FlowerDietSerializer(fdl, data=request.data)
    if serializer.is_valid():
        serializer.save()
        return Response(JSONRenderer().render(serializer.data), status=status.HTTP_201_CREATED)
    return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
 
def __del_flower_diet_detail01(request, pk):
    fdl = FlowerDiet01.objects.get(id=int(pk))
    fdl.delete()
    return Response(status=status.HTTP_204_NO_CONTENT)
 
 
def list_to_string(rs):
    temp_list = []
    temp_dic = {}
    if isinstance(rs, list):
        for r in rs:
            for k, v in r.items():
                if len(v[0]) == 0:
                    temp_dic[k] = ''
                else:
                    temp_dic[k] = ','.join(list(map(lambda x : str(x), v)))
            temp_list.append(temp_dic.copy())
        return temp_list
    elif isinstance(rs, dict):
        rs = dict(rs)
        for k, v in rs.items():
            if len(v[0]) == 0:
                temp_dic[k] = ''
            else:
                temp_dic[k] = ','.join(list(map(lambda x : str(x), v)))
        return temp_dic