发布于 2015-05-02 23:47:09 | 291 次阅读 | 评论: 0 | 来源: 网友投递
Django Python WEB开发框架
Django是一个开放源代码的Web应用框架，由Python写成。采用了MVC的软件设计模式，即模型M，视图V和控制器C。它最初是被开发来用于管理劳伦斯出版集团旗下的一些以新闻内容为主的网站的，即是CMS（内容管理系统）软件。并于2005年7月在BSD许可证下发布。这套框架是以比利时的吉普赛爵士吉他手Django Reinhardt来命名的。
Django 今天发布了两个 bug 修复版本 Django 1.8.1 和 Django 1.7.8。
Django 1.8.1 修复了 1.8 的一些 bugs，同时优化了迁移框架：
Added support for serializing timedelta objects in migrations (#24566).
Restored proper parsing of the testserver command’s positional arguments (fixture names) (#24571).
Prevented TypeError in translation functions check_for_language() andget_language_bidi() when translations are deactivated (#24569).
Fixed squashmigrations command when usingSeparateDatabaseAndState(#24278).
Stripped microseconds from datetime values when using an older version of the MySQLdb DB API driver as it does not support fractional seconds (#24584).
Fixed a migration crash when alteringManyToManyFields (#24513).
Fixed a crash with QuerySet.update() on foreign keys to one-to-one fields (#24578).
Fixed a regression in the model detail view ofadmindocs when a model has a reverse foreign key relation (#24624).
Fixed a crash with QuerySet.update() on foreign keys to instances withuuid primary keys (#24611).
Fixed database introspection with SQLite 3.8.9 (released April 8, 2015) (#24637).
Updated urlpatterns examples generated by startproject to remove usage of referencing views by dotted path inurl() which is deprecated in Django 1.8 (#24635).
Fixed queries where an expression was referenced in order_by(), but wasn’t part of the select clause. An example query isqs.annotate(foo=F('field')).values('pk').order_by('foo')) (#24615).
Fixed a database table name quoting regression (#24605).
Prevented the loss of null/not null column properties during field alteration of MySQL databases (#24595).
Fixed JavaScript path of contrib.admin’s related field widget when using alternate static file storages (#24655).
Fixed a migration crash when adding new relations to models (#24573).
Fixed a migration crash when applying migrations with model managers on Python 3 that were generated on Python 2 (#24701).
Restored the ability to use iterators as queryset filter arguments (#24719).
Fixed a migration crash when renaming the target model of a many-to-many relation (#24725).
Removed flushing of the test database with --keepdb, which prevented apps with data migrations from using the option (#24729).
Fixed makemessages crash in some locales (#23271).
Fixed help text positioning of contrib.admin fields that use theModelAdmin.filter_horizontal and filter_vertical options (#24676).
FixedAttributeError: function ‘GDALAllRegister’ not founderror when initializing contrib.gis on Windows.
Changed ModelState to deepcopy fields instead of deconstructing and reconstructing (#24591). This speeds up the rendering of model states and reduces memory usage when running manage.py migrate.
Django 1.7.8 主要是 bug 修复：
Database introspection with SQLite 3.8.9 (released April 8, 2015) (#24637).
A database table name quoting regression in 1.7.2 (#24605).
The loss of null/not null column properties during field alteration of MySQL databases (#24595).
完整改进请看：
两个版本都已提供下载：
Django 是 Python 编程语言驱动的一个开源模型-视图-控制器（MVC）风格的 Web 应用程序框架。使用 Django，我们在几分钟之内就可以创建高品质、易维护、数据库驱动的应用程序。
Django 框架的核心组件有：
用于创建模型的对象关系映射
为最终用户设计的完美管理界面
一流的 URL 设计
设计者友好的模板语言
缓存系统