Project - Django configuration

Create a Django project

surroundings

"" " 
Here Case project called luffy 
create a virtual environment for luffy Project 
>: mkvirtualenv luffy 
" "" 

"" " 
(execute in cmd) installed by basic environment dependent 
>: PIP install Django 2.0.7 == 
>: PIP djangorestframework install 
>: PIP install pymysql 
"" "

 Create a virtual project environment:

 

 Install Django

 

 Installation djangorestframework

 

 Installation pymysql

 

 

Create a project

"" " 
1. General will create a folder for the project: 
>: # cd Desktop cut to the desktop 
>: mkdir luffy # create items stored in the desktop folder 
2. Go to the project folder 
>: cd luffy 
3. In the project file create a folder under the project, where the project named luffyapi 
>: Django-ADMIN startproject luffyapi 

development: open the project with pycharm, and select in advance the prepared virtual environment 
. "" "

 

 

Reconstruction project directory

"" " 
├── luffyapi 
    when ├── logs / # runtime of the project / development log directory - the folder 
    ├── manage.py # script file 
    ├── luffyapi / # project main application code to save development time - package 
        ├── apps / # save directory developer's code to the module [sub-applications] the directory stores - package 
        ├── libs / # save directory of third-party libraries [third party components, modules] - packet 
        ├── settings / # configuration directory - package 
            local configuration when the project development ├── dev.py # 
            runtime line └── prod.py # project configuration 
        ├── urls.py # total route 
        └── utils / # plurality of modules [sub-applications] public function library [components to develop their own] 
    script file when └── scripts / # save the project operator - folder 
"" "

 

 

Configure the development environment

"" " 
1. Modify wsgi.py manage.py with two files: 
os.environ.setdefault ( 'the DJANGO_SETTINGS_MODULE', 'luffyapi.settings.dev') 

2. The removed or renamed settings.py, copy the contents of settings / in dev.py 

3. modify dev.py file contents 
LANGUAGE_CODE = 'Hans-ZH' 
TIME_ZONE = 'Asia / of Shanghai' 
USE_TZ = False 

4. modify the startup configuration: see illustration below 

whether the test 5. test default configuration file dev.py file: 
    - method 1: test default in any __init__.py file if the configuration file is dev.py file 
from django.conf Import Settings 
Print (Settings) 
    
    - 2: create t_dg.py tested in the folder scripts in file (see below details the test code) 
. "" "

 

 scripts/t_dg.py

import os, django
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "luffyapi.settings.dev")
django.setup()
from django.conf import settings
print(settings) # <Settings "luffyapi.settings.dev">  成功配置

 

 illustration

 

 

Configuring Log

dev.py

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'verbose': {
            'format': '%(levelname)s %(asctime)s %(module)s %(lineno)d %(message)s'
        },
        'simple': {
            'format': '%(levelname)s %(module)s %(lineno)d %(message)s'
        },
    },
    'filters': {
        'require_debug_true': {
            '()': 'django.utils.log.RequireDebugTrue',
        },
    },
    'handlers': {
        'console': {
            'level': 'DEBUG',
            'filters': ['require_debug_true'],
            'class': 'logging.StreamHandler ' ,
             ' Formatter ' : ' Simple ' 
        }, 
        ' File ' : {
             # actual development is recommended to use the WARNING
             ' Level ' : ' the INFO ' ,
             ' class ' : ' logging.handlers.RotatingFileHandler ' ,
             # log locations, log file name, save the log directory must be created manually, Note: this file path should pay attention to bASE_DIR it represents small luffyapi 
            ' filename ' : os.path.join (os.path.dirname (bASE_DIR), "logs", " Luffy.log " ),
             # log file maximum, where we set 300M 
            ' MaxBytes ' : 300 * 1024 * 1024 ,
             # number of log files, set the maximum number of logs for 10 
            ' BACKUPCOUNT ' : 10 ,
             # log format : verbose 
            ' Formatter ' : ' verbose ' ,
             # document content encoding 
            ' encoding ' : ' UTF-. 8 ' 
        }, 
    }, 
    # log object 
    ' Loggers ': {
         ' Django ' : {
             ' handlers ' : [ ' Console ' , ' File ' ],
             ' the Propagate ' : True, # whether to allow logging to continue to bubble to the other information log processing system 
        } 
    } 
}

 

 

Environment Variables

dev.py

# Environment variable operation: Small luffyapi BASE_DIR with apps folder to be added to the environment variable 
Import SYS 
sys.path.insert (0, base_dir) 
APPS_DIR = os.path.join (base_dir, ' apps ' )   # get apps absolute path 
sys.path.insert (1, APPS_DIR)

 

In writing project directly into the utils folder is not '' error ''   Note: Files only add a folder to set environment variables

Package logger

utils/logging.py

import logging
logger = logging.getLogger('django')

 

Exception handling package project

utils/exception.py

from rest_framework.views import exception_handler as drf_exception_handler
from rest_framework.views import Response
from rest_framework import status
from utils.logging import logger
def exception_handler(exc, context):
    response = drf_exception_handler(exc, context)
    if response is None:
        logger.error('%s - %s - %s' % (context['view'], context['request'].method, exc))
        return Response({
            'detail': '服务器错误'
        }, status=status.HTTP_500_INTERNAL_SERVER_ERROR, exception=True)
    return response

 

Second package module Response

utils/response.py

from rest_framework.response import Response

class APIResponse(Response):
    def __init__(self, data_status=0, data_msg='ok', results=None, http_status=None, headers=None, exception=False, **kwargs):
        data = {
            'status': data_status,
            'msg': data_msg,
        }
        if results is not None:
            data['results'] = results
        data.update(kwargs)

        super().__init__(data=data, status=http_status, headers=headers, exception=exception)