Tastypie是什么？ 运行于Python环境中的 Django web服务器下的 Restful 风格API (python 类库）
１、安装下面环境或者依赖包到python库（安装过程类似django 在命令行cd 到下载的文件目录中，输入python setup.py install就可以安装了）
- Python 2.6+ or Python 3.3+
- Django 1.5+
- python-mimeparse 0.1.4+ (http://pypi.python.org/pypi/python-mimeparse) 须下载安装
- dateutil (http://labix.org/python-dateutil) 高级点的python自带，不行的话就重新下载安装
- OPTIONAL - lxml (http://lxml.de/) and defusedxml(https://pypi.python.org/pypi/defusedxml) if using the XML serializer 可选 用于处理XML序列化
- OPTIONAL - pyyaml (http://pyyaml.org/) if using the YAML serializer 可选 用于处理YAML序列化
２、安照之前django教程建立了一个名为blog的app
D:\project\tastypie\mysite\blog\models.py 数据模型文件如下：
from tastypie.utils.timezone import now
from django.contrib.auth.models import User
from django.db import models
from django.utils.text import slugify
# Create your models here.
class Entry(models.Model):
user = models.ForeignKey(User)
pub_date = models.DateTimeField(default=now)
title = models.CharField(max_length=200)
slug = models.SlugField()#当你看见当下网页url后面出现a-b-c-d-f类似的字符串，就是被slugify了
body = models.TextField()
def __str__(self):
return self.title
def save(self, *args, **kwargs):
if not self.slug:
self.slug = slugify(self.title)[:50]
return super(Entry,self).save(*args, **kwargs)
３、在blog项目中配置tastypie
D:\project\tastypie\mysite\mysite\settings.py配置文件加入tastypie[非必要的]
# Application definition
INSTALLED_APPS = (
‘django.contrib.admin‘,
‘django.contrib.auth‘,
‘django.contrib.contenttypes‘,
‘django.contrib.sessions‘,
‘django.contrib.messages‘,
‘django.contrib.staticfiles‘,
‘blog‘,
‘tastypie‘,
)
４、创建API资源
D:\project\tastypie\mysite\blog\api\resources.py（手动创建的目录及文件）
from django.contrib.auth.models import User
from tastypie.authorization import Authorization
from tastypie import fields
from tastypie.resources import ModelResource ,ALL ,ALL_WITH_RELATIONS
from blog.models import Entry
class UserResource(ModelResource):
class Meta:
queryset = User.objects.all()
resource_name = ‘user‘
excludes = [‘email‘,‘password‘,‘is_active‘,‘is_staff‘,‘is_superuser‘]
#fields=[‘username‘,‘first_name‘,‘last_name‘,‘last_login‘]
#allowed_methods = [‘get‘]
authorization = Authorization()
filtering={
‘username‘:ALL,
}
class EntryResource(ModelResource):
user = fields.ForeignKey(UserResource,‘user‘)
class Meta:
queryset = Entry.objects.all()
resource_name = ‘entry‘
authorization = Authorization()
filtering = {
‘user‘ : ALL_WITH_RELATIONS,
‘pub_date‘:[‘exact‘,‘lt‘,‘lte‘,‘gte‘,‘gt‘],
}
５、url配置
主url配置，D:\project\tastypie\mysite\mysite\urls.py
from django.conf.urls import patterns, include, url
from django.contrib import admin
from tastypie.api import Api
from blog.api.resources import EntryResource,UserResource
v1_api = Api(api_name=‘v1‘)
v1_api.register(UserResource())
v1_api.register(EntryResource())
urlpatterns = patterns(‘‘,
# Examples:
(r‘^blog/‘, include(‘blog.urls‘,namespace="blog")),
(r‘^api/‘, include(v1_api.urls)),
(r‘^admin/‘, include(admin.site.urls)),
)
子url配置（主要是用来玩ajax调用等会使用），D:\project\tastypie\mysite\blog\urls.py
from django.conf.urls import patterns,url
from blog import views
urlpatterns=patterns(‘‘,
url(r‘^$‘,views.IndexView.as_view(),name=‘index‘),
)
６、下载个cURL工具加入到环境变量中使用，用于测试链接
７、开始玩API了
１）用命令行输入
curl http://localhost:8000/api/v1/得到如下json内容
{
"entry": {
"list_endpoint": "/api/v1/entry/",
"schema": "/api/v1/entry/schema/"
},
"user": {
"list_endpoint": "/api/v1/user/",
"schema": "/api/v1/user/schema/"
}
}
２）输入
curl http://localhost:8000/api/v1/entry/列出所有的json数据
３）下面我们在同个域下面用静态网页加上jquery的ajax来玩
３.１）先加个template文件：D:\project\tastypie\mysite\blog\templates\blog\index.html 记得在setting文件中加路径引用TEMPLATE_DIRS = [os.path.join(BASE_DIR,‘templates‘)]
<!DOCTYPE html> <html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<script type="text/javascript" src="/static/js/jquery-1.8.3.min.js"></script>
<script type="text/javascript" src="/static/js/json2.js"></script>
<script>
$(document).ready(function () {
$.ajax({
url: ‘http://localhost:8000/api/v1/entry/1/‘,
type: ‘GET‘,
dataType: ‘json‘,
success: function (data) {
console.log(data);
}
});
});
</script>
</body></html>
３.２）绑定个view:D:\project\tastypie\mysite\blog\views.py
from django.shortcuts import render
from django.views import generic
# Create your views here.
class IndexView(generic.ListView):
template_name=‘blog/index.html‘
context_object_name=‘‘
def get_queryset(self):
"""Return the last five published question"""
return ‘‘
３.３）前面提到的配置子url:D:\project\tastypie\mysite\blog\urls.py
from django.conf.urls import patterns,url
from blog import views
urlpatterns=patterns(‘‘,
url(r‘^$‘,views.IndexView.as_view(),name=‘index‘),
)
３.４）好，用Chrome 测试ajax调用，GET方法,输入url http://localhost:8000/blog/
按F12看log结果
Object {body: "test1", id: 1, pub_date: "2015-01-28T12:14:49", resource_uri: "/api/v1/entry/1/", slug: "test1"…}
３.５）现在看测试，POST方法，注意用了json2类库，js代码改为
var data = JSON.stringify({
"title": "Another Post 3",
"body": "This will prbbly be my 1st post.",
"pub_date": "2015-01-29T11:07:30",
"slug": "another-post",
"user": "/api/v1/user/1/"
});
$.ajax({
url: ‘http://localhost:8000/api/v1/entry/‘,
type: ‘POST‘,
contentType: ‘application/json‘,
data: data,
dataType: ‘json‘,
processData: false,
success: function (data) {
console.log(data);
},
error: function (data) {
console.log(data);
}
});
用浏览器看结果：输入http://localhost:8000/api/v1/entry/?format=json
{"body": "This will prbbly be my 1st post.", "id": 7, "pub_date": "2015-01-29T11:07:30", "resource_uri": "/api/v1/entry/7/", "slug": "another-post", "title": "Another Post 3", "user": "/api/v1/user/1/"} 记录已经POST成功了！
３.６）