Python：masonite初体验TodoList

文档：https://docs.masoniteproject.com/

初次体验框架，感觉里边提供了丰富的命令行工具可以快速开发，
主要是ORM很棒，区别于Python生态Django等的ORM，和PHP的laravel很像，简单高效

一、环境配置

环境

Python 3.4+
masonite 2.2.26
masonite-cli 2.2.2

  

 

  
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安装

$ pip install masonite-cli
$ craft  # 查看帮助


  

 

  
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二、新建一个项目

# 1、新建项目
craft new project_name
cd project_name

# 2、安装依赖
craft install # 3、启动服务
craft serve 
  

 

  
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访问：http://127.0.0.1:8000/
出现欢迎界面

三、示例1：Hello World

1、创建控制器

$ craft controller Index

  

 

  
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app/http/controllers/IndexController.py

"""A IndexController Module."""

from masonite.request import Request
from masonite.view import View
from masonite.controllers import Controller


class IndexController(Controller): """IndexController Controller Class.""" def __init__(self, request: Request): """IndexController Initializer Arguments: request {masonite.request.Request} -- The Masonite Request class. """ self.request = request def show(self, view: View): return "Hello world" 
  

 

  
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2、配置路由

routes/web.py

"""Web Routes."""

from masonite.routes import Get, Post

ROUTES = [ Get('/', 'IndexController@show'),
]


  

 

  
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masonite默认会自动重启服务
再次访问 http://127.0.0.1:8000/

显示：Hello world

示例2：新建TODOLIST项目

1、配置数据库,使用sqlite

.env

DB_CONNECTION=sqlite
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=data.db
DB_USERNAME=root
DB_PASSWORD=root
DB_LOG=True

  

 

  
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2、创建迁移文件

$ craft migration create_todolist_table --create todolist

  

 

  
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设置3个字段：id，title，complete_time
databases/migrations/create_todolist_table.py

from orator.migrations import Migration


class CreateTodolistTable(Migration): def up(self): """ Run the migrations. """ with self.schema.create('todolist') as table: table.increments('id') table.string('title') table.datetime('complete_time').nullable()  # 可以为null table.timestamps() def down(self): """ Revert the migrations. """ self.schema.drop('todolist')


  

 

  
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迁移数据, 建表

$ craft migrate

  

 

  
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查看建表语句

CREATE TABLE "todolist" ( "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, "title" VARCHAR NOT NULL, "complete_time" DATETIME NULL, "created_at" DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL, "updated_at" DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL
);

  

 

  
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可以看到默认多加了2个字段：created_at，updated_at

3、创建Model

$ craft model TodoList

  

 

  
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稍作修改
app/TodoList.py

"""TodoList Model."""

from config.database import Model


class TodoList(Model): """TodoList Model.""" # 查询数据库的时候会在类名后加s，所以自定义表名 __table__ = "todolist" # 要写入的字段 __fillable__ = ['title', 'complete_time']


  

 

  
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4、创建模板

$ craft view index
$ craft view detail

  

 

  
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其中模板引擎使用的是 Jinja2

resources/templates/index.html

<h1>TODO LIST</h1>

<a href="/add"><button>添加</button></a>
<a href="/truncate"><button>清空</button></a>

<table border="1"> <thead> <tr> <td>序号</td> <td>任务</td> <td>完成时间</td> <td>编辑</td> <td>删除</td> </tr> </thead> <tbody> {% for row in rows %} <tr> <td>{{ row.id }} </td> <td>{{ row.title }} </td> {% if row.complete_time %} <td>{{ row.complete_time }}</td> {% else %} <td> <a href="/complete/{{ row.id }}"> <button>完成</button> </a> </td> {% endif %} <td><a href="/edit/{{ row.id }}"> <button>修改</button> </a></td> <td><a href="/delete/{{ row.id }}"> <button>删除</button> </a></td> </tr> {% endfor %} </tbody>
</table>



  

 

  
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resources/templates/edit.html

<form action="/save" method="post"> {{ csrf_field }} <input type="hidden" name="id" id="title" value="{{ row.id }}"> <label for="title"></label> <input type="text" name="title" id="title" value="{{ row.title }}"> <input type="submit" value="提交">
</form>

  

 

  
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5、编写对应的控制器方法

"""A IndexController Module."""

from masonite.request import Request
from masonite.view import View
from masonite.controllers import Controller

from app.TodoList import TodoList
from datetime import datetime


class IndexController(Controller): """IndexController Controller Class.""" def __init__(self, request: Request, view: View): """IndexController Initializer Arguments: request {masonite.request.Request} -- The Masonite Request class. """ self.request = request self.view = view def index(self): rows = TodoList.all() return self.view.render('index', {"rows": rows}) def save(self): uid = self.request.input("id") title = self.request.input("title") if uid: TodoList.where('id', '=', uid).update({'title': title}) else: TodoList.create(title=title) return self.request.redirect("/") def detail(self): uid = self.request.param("id") row = TodoList.find(uid) return self.view.render('edit', {"row": row}) def delete(self): uid = self.request.param("id") TodoList.find(uid).delete() return self.request.redirect("/") def complete(self): uid = self.request.param("id") current_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S") TodoList.where('id', '=', uid).update({'complete_time': current_time}) return self.request.redirect("/") def truncate(self): TodoList.truncate() return self.request.redirect("/")


  

 

  
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6、配置路由文件

"""Web Routes."""

from masonite.routes import Get, Post

ROUTES = [ Get('/', 'IndexController@index'), Get('/add', 'IndexController@detail'), Get('/edit/@id', 'IndexController@detail'), Get('/delete/@id', 'IndexController@delete'), Get('/complete/@id', 'IndexController@complete'), Get('/truncate', 'IndexController@truncate'), Post('/save', 'IndexController@save'),
]


  

 

  
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7、界面展示

参考文章
https://docs.masoniteproject.com/creating-a-blog

文章来源: pengshiyu.blog.csdn.net，作者：彭世瑜，版权归原作者所有，如需转载，请联系作者。

原文链接：pengshiyu.blog.csdn.net/article/details/103216204