publish

一、普通过滤 1、get_queryset 　　get_queryset方法是GenericAPIView提供的一个方法，旨在返回queryset数据集，而过滤就是要在这个方法返回数据集之前对数据进行筛选，然后返回筛选后的数据即可，那么也就是要求需要重写这个方法： def get_queryset(self): """ Get the list of items for this view. This must be an iterable, and may be a queryset. Defaults to using `self.queryset`. This method should always be used rather than accessing `self.queryset` directly, as `self.queryset` gets evaluated only once, and those results are cached for all subsequent requests. You may want to override this if you need to provide different querysets depending on the incoming request. (Eg. return a list of

一、序列化组件 简单使用 开发我们的Web API的第一件事是为我们的Web API提供一种将代码片段实例序列化和反序列化为诸如 json 之类的表示形式的方式。我们可以通过声明与Django forms非常相似的序列化器（serializers）来实现。 models部分: from django.db import models # Create your models here. class Book(models.Model): title=models.CharField(max_length=32) price=models.IntegerField() pub_date=models.DateField() publish=models.ForeignKey("Publish") authors=models.ManyToManyField("Author") def __str__(self): return self.title class Publish(models.Model): name=models.CharField(max_length=32) email=models.EmailField() def __str__(self): return self.name class Author(models.Model): name=models

I was tring to deploy an ASP.NET Web Application to a Windows Azure Web Site by following the tutorial through this link: https://www.windowsazure.com/en-us/develop/net/tutorials/get-started/ After download the public profile, which is a ".PublishSettings" file, I go back to Visual Studio and right-click the project in Solution Explorer and select Publish from the context menu as the tutorial said. However, a warning box jumped up and it showed me that "The Web Publishing extension is not installed which is required to publish. You can install it from http://go.microsoft.com/fwlink/?LinkID

自己写的npm包，之前每次更新都是正常发布，最近做个一个更新，想发布，然后npm publish 竟然失败， 错误提示如下： npm ERR! network request to https://registry.npmjs.org/yy-org-switch failed, reason: connect ETIMEDOUT 104.16.16.35:443 npm ERR! network This is a problem related to network connectivity. npm ERR! network In most cases you are behind a proxy or have bad network settings. npm ERR! network npm ERR! network If you are behind a proxy, please make sure that the npm ERR! network 'proxy' config is set properly. See: 'npm help config' 截图如下： 意思就是连接不上 https://registry.npmjs.org， 在浏览器里访问这个网址果然访问不了，网上查了各种资料， 主要就是去掉npm淘宝源 或者 npm config set

I'm Trying to publish a website, using Visual Studio 2013. I'm getting an error: ASPNETCOMPILER(0,0): Error ASPRUNTIME: Object reference not set to an instance of an object. It happens also on Visual Studio 2010. I tried to restart VS, and PC. I removed *.dll.refresh from my bin directory. I don't have <clear/> tags in my web.config. I think it all started when I accidently removed my *.suo file. Any ideas? Update: I just noticed it happens only when I try to precompile my site. If I publish without precompilation it works fine... OK. After wasting so many hours I somehow got to this blog:

1、配置文件 restframwork相当于app INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'app01.apps.App01Config', 'rest_framework', ] setting.py 2、模型(储存表关系) from django.db import models # Create your models here. class Book(models.Model): title = models.CharField(max_length=32) price = models.IntegerField() pub_date = models.DateField() publish = models.ForeignKey("Publish", on_delete=models.CASCADE) authors = models.ManyToManyField("Author") def __str__(self): return self

一、模型表 from django.db import models # Create your models here. class Publish(models.Model): name = models.CharField(max_length=32) addr = models.CharField(max_length=128) def __str__(self): return self.name class Book(models.Model): title = models.CharField(max_length=16) price = models.DecimalField(max_digits=4, decimal_places=2) publisher = models.ForeignKey(to="Publish", on_delete=models.CASCADE) authors = models.ManyToManyField(to="Author") def __str__(self): return self.title class Author(models.Model): name = models.CharField(max_length=8) email = models.CharField(max_length=36) def __str