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simpletodo: 一个简易的 todo 程序 django版

今天无意间看到 simple-todo: 一个简易的 todo 程序 - web.py 中文教程，然后发现竟然有好多的版本 http://simple-is-better.com/news/tag/simple-todo

然后看到django版的是个半成品，好吧，自己动手丰衣足食。

django 安装配置这里就不再介绍了，直接给之前的地址： django 简易博客开发 1 安装、创建、配置、admin使用

使用的环境： fedora 17 + django1.4 + python2.7 + sqlite3

前端使用的 bootstrap + jquery

实现添加修改删除 ajax支持可自行添加用户控制

1、django安装 project 创建、app 创建、安装、admin使用

看着个吧，这篇博客有详细教程

2、上代码

#!/usr/bin/python
# -*- coding: utf-8 -*-

from django.db import models
from django_openid_auth.models import User  
#之前我用过openid 这里换成 from django.contrib.auth.models import User 就可以了


class Todo(models.Model):
    user = models.ForeignKey(User)
    todo = models.CharField(max_length=50)
    flag = models.CharField(max_length=2， default='1')
    priority = models.CharField(max_length=2， default='0')
    pubtime = models.DateTimeField(auto_now_add=True)

    def __unicode__(self):
        return u'%d %s %s' % (self.id, self.todo, self.flag)

    class Meta:
        ordering = ['priority', 'pubtime']

priority 为优先级 排序时优先级高的在前面，越小优先级越高；然后再按时间排序，越早越靠前
flag 标记是否完成 默认为1表示未完成
当然这两处改为models.IntegerField 更好一些，可以自己修改一下

创建数据库:

python manage.py syncdb

在admin查看

#!/usr/bin/python
# -*- coding: utf-8 -*-

from django.contrib import admin
from simpleToDo.models import Todo

class TodoAdmin(admin.ModelAdmin):
    list_display = ('user', 'todo', 'priority', 'flag', 'pubtime')
    list_filter = ('pubtime',)
    ordering = ('-pubtime',)


admin.site.register(Todo, TodoAdmin)

urls.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

from django.conf.urls import *

urlpatterns = patterns(('simpleToDo.views'),
    url(r'^$', 'todolist', name='todo'),
    url(r'^addtodo/$', 'addTodo', name='add'),
    url(r'^todofinish/(?P<id>\d+)/$', 'todofinish', name='finish'),
    url(r'^todobackout/(?P<id>\d+)/$', 'todoback',  name='backout'),
    url(r'^updatetodo/(?P<id>\d+)/$', 'updatetodo', name='update'),
    url(r'^tododelete/(?P<id>\d+)/$', 'tododelete', name='delete'),
)

views.py

 1 from django.shortcuts import render_to_response
 2 from django.http import HttpResponseRedirect
 3 from django.template import RequestContext
 4 from django_openid_auth.models import User
 5 from django.http import Http404
 6 from simpleToDo.models import Todo
 7 
 8 
 9 def todolist(request):
10     todolist = Todo.objects.filter(flag=1)
11     finishtodos = Todo.objects.filter(flag=0)
12     return render_to_response('simpleTodo.html',
13         {'todolist': todolist, 'finishtodos': finishtodos},
14         context_instance=RequestContext(request))
15 
16 
17 def todofinish(request, id=''):
18     todo = Todo.objects.get(id=id)
19     if todo.flag == '1':
20         todo.flag = '0'
21         todo.save()
22         return HttpResponseRedirect('/simpleTodo/')
23     todolist = Todo.objects.filter(flag=1)
24     return render_to_response('simpleTodo.html', {'todolist': todolist},
25         context_instance=RequestContext(request))
26 
27 
28 def todoback(request, id=''):
29     todo = Todo.objects.get(id=id)
30     if todo.flag == '0':
31         todo.flag = '1'
32         todo.save()
33         return HttpResponseRedirect('/simpleTodo/')
34     todolist = Todo.objects.filter(flag=1)
35     return render_to_response('simpleTodo.html', {'todolist': todolist},
36         context_instance=RequestContext(request))
37 
38 
39 def tododelete(request, id=''):
40     try:
41         todo = Todo.objects.get(id=id)
42     except Exception:
43         raise Http404
44     if todo:
45         todo.delete()
46         return HttpResponseRedirect('/simpleTodo/')
47     todolist = Todo.objects.filter(flag=1)
48     return render_to_response('simpleTodo.html', {'todolist': todolist},
49         context_instance=RequestContext(request))
50 
51 
52 def addTodo(request):
53     if request.method == 'POST':
54         atodo = request.POST['todo']
55         priority = request.POST['priority']
56         user = User.objects.get(id='1')
57         todo = Todo(user=user, todo=atodo, priority=priority, flag='1')
58         todo.save()
59         todolist = Todo.objects.filter(flag='1')
60         finishtodos = Todo.objects.filter(flag=0)
61         return render_to_response('showtodo.html',
62             {'todolist': todolist, 'finishtodos': finishtodos},
63             context_instance=RequestContext(request))
64     else:
65         todolist = Todo.objects.filter(flag=1)
66         finishtodos = Todo.objects.filter(flag=0)
67         return render_to_response('simpleTodo.html',
68             {'todolist': todolist, 'finishtodos': finishtodos})
69 
70 
71 def updatetodo(request, id=''):
72     if request.method == 'POST':
73         print 'ddd'
74         atodo = request.POST['todo']
75         priority = request.POST['priority']
76         user = User.objects.get(id='1')
77         todo = Todo(user=user, todo=atodo, priority=priority, flag='1')
78         todo.save()
79         todolist = Todo.objects.filter(flag='1')
80         finishtodos = Todo.objects.filter(flag=0)
81         return render_to_response('simpleTodo.html',
82             {'todolist': todolist, 'finishtodos': finishtodos},
83             context_instance=RequestContext(request))
84     else:
85         try:
86             todo = Todo.objects.get(id=id)
87         except Exception:
88             raise Http404
89         return render_to_response('updatatodo.html', {'todo': todo},
90             context_instance=RequestContext(request))

因为表单使用的是post方法，所以每个view 后都添加了 context_instance=RequestContext(request)

否则可能会出现这个错误

/usr/lib/python2.7/site-packages/django/template/defaulttags.py:55: UserWarning: A {% csrf_token %} was used in a template, but the context did not provide the value.  This is usually caused by not using RequestContext.
  warnings.warn("A {% csrf_token %} was used in a template, but the context did not provide the value.  This is usually caused by not using RequestContext.")

templates 代码

simpleTodo.html

<!DOCTYPE html>
<html lang="en">
    <head>
        <title>{% block title %}Simple Todo{% endblock %}</title>
        <meta charset="UTF-8" />
        <link rel="stylesheet" href="/static/css/bootstrap.min.css">
        <link rel="stylesheet" href="/static/css/code.css">
        <script src="/static/js/modernizr.js"></script>
        <script src="/static/js/jquery.js"></script>
        {% block extra_head %}
            <style>
                body {padding-top: 40px;}
                .ftodo{text-decoration : line-through ; }
                textarea{ width: 97%;
                        padding: 5px;
                        font-size: 14px;
                        resize: vertical;}
            </style>
            <script type="text/javascript">
            function sendtwitter(){
                $('#myModal form').submit(function(){
                    $.ajax({
                        type: "POST",
                        data: $('#myModal form').serialize(),
                        url: "{% url add %}",
                        cache: false,
                        dataType: "html",
                        success: function(html, textStatus) {
                            $('#todo').replaceWith(html);
                            $('#myModal').modal('hide');   
                            $('#myModal form')[0].reset();                   
                        },
                        error: function (XMLHttpRequest, textStatus, errorThrown) {
                            $('#comment_form form').replaceWith('Your comment was unable to be posted at this time.  We apologise for the inconvenience.');
                        }
                    });
                    return false;
                });
            }
            $(document).ready(function(){
                sendtwitter();
            })
        </script>     
        {% endblock %}
    </head>
    <body>
        <div class="container">
            <div class="row">
                <div class="span8 offset2">
                    <div id="todo" class="well">
                    {% block todo %}
                    <table class="table table-hover">
                        <thead>
                            <tr>
                                <td>
                                    <h3 class="text-success">待办事项</h3>
                                </td>
                            </tr>
                        </thead>
                        <tbody>
                            {% for todo in todolist %}
                            {% if todo.priority == '1' %}
                            <tr class='error'>
                            {% endif %}
                            {% if todo.priority == '2' %}
                            <tr class='warning'>
                            {% endif %}
                            {% if todo.priority == '3' %}
                            <tr class='info'>
                            {% endif %}
                                <td class="todo">{{ todo.todo }}</td>
                                <td class="te">
                                    <div class="span2">
                                        <a href="{% url finish todo.id %}" title="finish"><i class=" icon-ok"></i></a>
                                        <a href="{% url update todo.id %}" title="edit"><i class="icon-edit"></i></a>
                                        <a href="{% url delete todo.id %}" title="delete"><i class="icon-trash"></i></a>                          
                                    </div>
                                </td>
                            </tr>
                            {% endfor %}
                            {% for ftodo in finishtodos %}
                            <tr class='success'>
                                <td class="ftodo muted">{{ ftodo.todo }}</td>
                                <td class="te">
                                    <div class="span2">
                                        <a href="{% url backout ftodo.id %}" title="finish"><i class=" icon-repeat"></i></a>
                                        <a href="{% url update ftodo.id %}" title="edit"><i class="icon-edit"></i></a>
                                        <a href="{% url delete ftodo.id %}" title="delete"><i class="icon-trash"></i></a>
                                    </div>
                                </td>
                            </tr>
                            {% endfor %}
                        </tbody>
                    </table>
                    <a class="btn btn-success" href="#myModal" role="button" data-toggle="modal">
                        <i class="icon-plus icon-white"></i><span > ADD</span>
                    </a>
                    {% endblock %}
                    </div>
                </div>
            </div>
        </div>
        <div class="modal hide fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
            <h3 id="myModalLabel">Add TODO</h3>
        </div>
        <form action="" method="post">{% csrf_token %}
        <div class="modal-body">
            <textarea name="todo" class="txtodo" id="txtodo" required="required">{{ todo.todo }}</textarea>
            <fieldset>
                <label class="radio inline" for="priority">
                    <span class="label label-info">Priority</span>
                </label>
                <label class="radio inline" for="priority">
                    <input type="radio" name="priority" value="1"/>
                    <span class="label label-important">重要</span>
                </label>          
                <label class="radio inline" for="priority">
                    <input type="radio" name="priority" value="2"/>
                    <span class="label label-warning">警告</span>
                </label>          
                <label class="radio inline" for="priority">
                    <input type="radio" name="priority" value="3"/>
                    <span class="label label-success">成功</span>
                </label>
            </fieldset>
        </div>
        <div class="modal-footer">
            <button class="btn"  data-dismiss="modal" aria-hidden="true">Close</button>
            <button id="send" class="btn btn-success" type="submit" name="submit" >Save changes</button>
        </div>
        </form>
    </div>
        <script src="/static/js/bootstrap.min.js"></script>
    </body>
</html>

showtodo.html

 1 <div id="todo">
 2     <table class="table table-hover">
 3         <thead>
 4             <tr>
 5                 <td>
 6                     <h4>todo</h4>
 7                 </td>
 8                 <td>
 9                     <a class="btn btn-success" href="#myModal" role="button" data-toggle="modal">
10                         <i class="icon-plus icon-white"></i><span > ADD</span>
11                     </a>  
12                 </td>
13             </tr>
14         </thead>
15         <tbody>
16             {% for todo in todolist %}
17             {% if todo.priority == '1' %}
18             <tr class='error'>
19             {% endif %}
20             {% if todo.priority == '2' %}
21             <tr class='warning'>
22             {% endif %}
23             {% if todo.priority == '3' %}
24             <tr class='info'>
25             {% endif %}
26                 <td class="todo">{{ todo.todo }}</td>
27                 <td class="te">
28                     <div class="span2">
29                         <a href="{% url finish todo.id %}" title="finish"><i class=" icon-ok"></i></a>
30                         <a href="{% url updateblog todo.id %}" title="edit"><i class="icon-edit"></i></a>
31                         <a href="{% url delete todo.id %}" title="delete"><i class="icon-trash"></i></a>                          
32                     </div>
33                 </td>
34             </tr>
35             {% endfor %}
36             {% for ftodo in finishtodos %}
37             <tr class='success'>
38                 <td class="todo muted">{{ ftodo.todo }}</td>
39                 <td class="te">
40                     <div class="span2">
41                         <a href="{% url backout ftodo.id %}" title="finish"><i class=" icon-ok"></i></a>
42                         <a href="{# {% url updateblog blog.id %} #}" title="edit"><i class="icon-edit"></i></a>
43                         <a href="{% url delete ftodo.id %}" title="delete"><i class="icon-trash"></i></a>
44                     </div>
45                 </td>
46             </tr>
47             {% endfor %}
48         </tbody>
49     </table>
50 </div>

updatatodo.html

 1 {% extends 'simpleTodo.html'%}
 2 
 3 {% block title %} update Todo {% endblock %}
 4 
 5 {% block todo %}
 6     <form action="{% url update todo.id %}" method="post">{% csrf_token %}
 7         <div class="modal-body">
 8             <textarea name="todo" class="txtodo" id="txtodo" required="required">{{ todo.todo }}</textarea>
 9             <fieldset>
10                 <label class="radio inline" for="priority">
11                     <span class="label label-info">Priority</span>
12                 </label>
13                 <label class="radio inline" for="priority">
14                     <input type="radio" name="priority" value="1" {% if todo.priority == '1' %} checked{% endif %}/>
15                     <span class="label label-important">重要</span>
16                 </label>          
17                 <label class="radio inline" for="priority">
18                     <input type="radio" name="priority" value="2" {% if todo.priority == '2' %} checked{% endif %}/>
19                     <span class="label label-warning">警告</span>
20                 </label>          
21                 <label class="radio inline" for="priority">
22                     <input type="radio" name="priority" value="3" {% if todo.priority == '3' %} checked{% endif %}/>
23                     <span class="label label-success">成功</span>
24                 </label>
25             </fieldset>
26         </div>
27         <div class="modal-footer">
28             <button class="btn"  data-dismiss="modal" aria-hidden="true">Close</button>
29             <button id="send" class="btn btn-success" type="submit" name="submit" >Save changes</button>
30         </div>
31         </form>
32 {% endblock %}

实现效果

1、首页

2、添加事项页面

3、修改事项时页面

项目地址： https://github.com/goodspeedcheng/Django-Simple-Todo

希望大家能把错误的地方指出来，让django版todo的更好一些谢谢

作者：GoodSpeed Cheng
出处：http://www.cnblogs.com/cacique/
本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。

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原文地址：https://www.cnblogs.com/cacique/p/2713415.html