cmder（一个基于 ConEmu 实现的终端模拟器） 来代 替系统自带的 cmd.exe，或是使用安装 Git for Windows 后（下一节）附带的 Git Bash。cmder 集成了 Git Bash，支持一些在 Linux 或 macOS 下才能使用的命令 （程序），比如 ls、cat、nano、ssh 等，这些命令我们在后面会用到。 使用 Git Git 是一个流行的版本控制工具，我们可以用它来记录程序源码和文件的变动情 coding: utf-8-*- ，并在包含中文的字符串前面添加 u 前缀。本 书中对于包含中文的字符串均添加了 u 前缀，这在 Python 3 中并不需要。 对于 URL 变量，Flask 还支持在 URL 规则字符串里对变量设置处理器，对变 量进行预处理。比如 /user/ 会将 URL 中的 number 部分处 理成整型，同时这个变量值接收传入数字。 因为 上查看本书示例程序的对应 commit：8537d98。 进阶提示 使用 Faker 可以实现自动生成虚拟数据，它支持丰富的数据类型，比如时间、 人名、地名、随机字符等等…… 除了过滤器，Jinja2 还在模板中提供了一些测试器、全局函数可以使用；除此 之外，还有更丰富的控制结构支持，有一些我们会在后面学习到，更多的内容 第 3 章：模板 27 则可以访问 Jinja2 文档学习。 如果你是《Flask

一份入门教程或者是参考文档（我们当然也为您准备了这些）。如果您想要马上开始一个项目，可以 从 实例教程（zh）开始入手，或者直接开始阅读详细的参考文档。 Django 无需数据库就可以使用，它提供了对象关系映射器（ORM）。通过此技术，你可以使用 Python 代码来描述数据库结构。 数据模型语法提供了很多方法来描述你的数据，这解决了多年来在数据库模式中的难题。以下是一个 简明的例子： 1. # mysite/news/models 设置。 默认情况下，配置的数据库是 SQLite，如果你对数据库不太熟，或者你只是对尝试 Django 感兴 趣，这是最简单的选择。SQLite 内嵌在 Python 里，所以你不用再安装其他东西来支持你的数据 库。但是当你开始做第一个实际的项目时，你也许想使用一个可扩展的数据库，比如 PostgreSQL 来避免令人头痛地切换数据库问题。 如果你希望使用其他数据库，你需要安装合适的 database 书栈(BookStack.CN) 构建 最后，还要注意到我们使用了 ForeignKey 外键来定义一个关系。这会告诉 Django 每个 Choice 对象都和一个 Question 对象相关联。Django 支持所有常用的数据库关系：多对一、多 对多和一对一。 上面的一小段用于创建模型的代码给了 Django 很多信息，通过这些信息，Django 可以： 为这个应用创建数据库结构（生成 CREATE TABLE

version of the JDBC driver, which is fully compatible with JDBC and all kinds of ORM frameworks. • Applicable in any ORM framework based on JDBC, such as JPA, Hibernate, Mybatis, Spring JDBC Template Confiugration for more rule details. Use Data Source Developer can choose to use native JDBC or ORM frameworks such as JPA, Hibernate or MyBatis through the DataSource. Take native JDBC usage as an Confiugration for more rule details. Use Data Source Developer can inject to use native JDBC or ORM frameworks such as JPA, Hibernate or MyBatis through the DataSource. Take native JDBC usage as an

version of the JDBC driver, which is fully compatible with JDBC and all kinds of ORM frameworks. • Applicable in any ORM framework based on JDBC, such as JPA, Hibernate, Mybatis, Spring JDBC Template Confiugration for more rule details. Use Data Source Developer can choose to use native JDBC or ORM frameworks such as JPA, Hibernate or MyBatis through the DataSource. Take native JDBC usage as an Confiugration for more rule details. Use Data Source Developer can inject to use native JDBC or ORM frameworks such as JPA, Hibernate or MyBatis through the DataSource. Take native JDBC usage as an

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351 12 Database Access & ORM 463 Quick Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “Comment”, or “Photo”. If we wanted to load some data from our users table we could do: use Cake\ORM\TableRegistry; (continues on next page) 1 CakePHP Cookbook Documentation, Release 3.10 (continued If we wanted to make a new user and save it (with validation) we would do something like: use Cake\ORM\TableRegistry; // Prior to 3.6 use TableRegistry::get('Users') $users = TableRegistry::getTableLo

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219 12 Database Access & ORM 321 Quick Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “Comment”, or “Photo”. If we wanted to load some data from our users table we could do: use Cake\ORM\Locator\LocatorAwareTrait; (continues on next page) 1 CakePHP Cookbook Documentation, Release 5 If we wanted to make a new user and save it (with validation) we would do something like: use Cake\ORM\Locator\LocatorAwareTrait; $users = $this->getTableLocator()->get('Users'); $user = $users->newEntity(['email'

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317 12 Database Access & ORM 419 Quick Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “Comment”, or “Photo”. If we wanted to load some data from our users table we could do: use Cake\ORM\Locator\LocatorAwareTrait; (continues on next page) 1 CakePHP Cookbook Documentation, Release 4 If we wanted to make a new user and save it (with validation) we would do something like: use Cake\ORM\Locator\LocatorAwareTrait; $users = $this->getTableLocator()->get('Users'); $user = $users->newEntity(['email'

cross-platform software released under MIT license. SQLAlchemy is famous for its object-relational mapper (ORM), using which classes can be mapped to the database, thereby allowing the object model and database Audience This tutorial is designed for all those Python programmers who would like to understand the ORM framework with SQLAlchemy and its API. Prerequisites Before you start proceeding with this tutorial ..................................................................................... 1 What is ORM? .................................................................................................

Migration Guide 3.1 Migration Guide 3.1 Migration Guide 3.0 Migration Guide 3.0 Migration Guide New ORM Upgrade Guide Tutorials & Examples Content Management Tutorial Getting CakePHP Checking our Installation Own View Classes More About Views View Cells Themes JSON and XML views Helpers Database Access & ORM Quick Example More Information Database Basics Query Builder Table Objects Entities Retrieving Data “Comment”, or “Photo”. If we wanted to load some data from our users table we could do: use Cake\ORM\TableRegistry; // Prior to 3.6 use TableRegistry::get('Users') $users = TableRegistry::getTableLo

Own View Classes More About Views View Cells Themes JSON and XML views Helpers Database Access & ORM Quick Example More Information Database Basics Query Builder Table Objects Entities Retrieving Data “Comment”, or “Photo”. If we wanted to load some data from our users table we could do: use Cake\ORM\Locator\LocatorAwareTrait; $users = $this->getTableLocator()->get('Users'); $resultset = $users->find()->all(); If we wanted to make a new user and save it (with validation) we would do something like: use Cake\ORM\Locator\LocatorAwareTrait; $users = $this->getTableLocator()->get('Users'); $user = $users->newEntity(['email'