Gowhich

Durban's Blog

发表于 分类于

Method 1: The Cross-Browser CSS Way

The easiest way to do this is to make use of the built-in Django {% cycle %} tag. Here’s how to use it for a table containing blog entries:

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<table>
<tbody>
{% for blog in blogs %}
  {% for entry in blog.entries %}
    <tr class="{% cycle 'odd' 'even' %}">
      {{entry.date}}
      {{entry.title}}
      {{entry.comments}}
    </tr>
  {% endfor %}
{% endfor %}
</tbody>
</table>

Method 2: The Pure CSS Way

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tbody tr:nth-child(even) td {background: #bbeebb;}
tbody tr:nth-child(odd) td {background: #e5f9e5;}

发表于 分类于

关于 django 权限控制，也是出于项目需求，一般的项目都差不多需要这样的权限控制

在django中，这里实现的其实是最简单的控制，非登录用户禁止访问产品管理界面，在django中只需要在view函数中增加@login_required修饰符即可:

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@login_required
def woman(request):
    if request.user.is_authenticated():
        user = request.user;
    else:
        user = request.user;

    items_woman = Woman.objects.filter(is_show=0).order_by('-create_date')[:10]

    return render_to_response('accounts/woman.html',{'user':user,'action':'woman','items':items_woman},context_instance=RequestContext(request))

修饰符实现了如下功能：

如果用户没有登录，重定向到/account/login/，并且把当前绝对url作为next参数用get方法传递过去；
如果已经正常登录，则直接正常执行视图函数；

这样例子中需要的功能就实现了。但是这充其量是“登录限制”，而更常见的需求是“访问控制”，即区分已经登录的用户，对不同的视图有不同的访问权限。因为我们的例子中没有涉及到，所以只把相关的做法简单例举在下面：

访问控制通过django的request.user.has_perm()实现，函数返回true和false。表示该用户是否有权限，而权限是auth应用中定义的Permission类型；User与Permission是many-to-many的关系

django还提供了一个@permission_required修饰符，来限定view函数只有在User具有相应权限的情况下才能访问

django对于每个模型类，自动增加add,change,delete三种权限，以便于控制权限，也可以自己设定自己的权限

这部分代码可以自己实现

发表于 分类于

关于django的时间格式的问题，最近在做项目中，进坑啦，python基础没怎么学，就只有这样啦，继续努力

简单的时间格式是这样的：

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datetime.datetime.now()
#2012-03-15 11:50:57.728000

这个会返回 microsecond。因此这个是我们不需要的。所以得做一下修改

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datetime.datetime.now().strftime("%Y-%m-%d %H:%I:%S");

格式化之后，就得到了我们常见的格式了。
附：strftime参数

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strftime(format[, tuple]) -> string

将指定的struct_time(默认为当前时间)，根据指定的格式化字符串输出
python中时间日期格式化符号：

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%y 两位数的年份表示（00-99）
%Y 四位数的年份表示（000-9999）
%m 月份（01-12）
%d 月内中的一天（0-31）
%H 24小时制小时数（0-23）
%I 12小时制小时数（01-12） 
%M 分钟数（00=59）
%S 秒（00-59）

%a 本地简化星期名称
%A 本地完整星期名称
%b 本地简化的月份名称
%B 本地完整的月份名称
%c 本地相应的日期表示和时间表示
%j 年内的一天（001-366）
%p 本地A.M.或P.M.的等价符
%U 一年中的星期数（00-53）星期天为星期的开始
%w 星期（0-6），星期天为星期的开始
%W 一年中的星期数（00-53）星期一为星期的开始
%x 本地相应的日期表示
%X 本地相应的时间表示
%Z 当前时区的名称
%% %号本身

发表于 分类于

一个很关键的并且要常记住的，就是代码中所有字符串都统一使用unicode，而不是str。这样，自己就能很清楚要处理的字符串类型了。请记住，是所有，任何地方。
例如：

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>>> s1 = u'%s欢迎您!' % u'北京'
>>> s1
u'\u5317\u4eac\u6b22\u8fce\u60a8\uff01'
>>> print s1
北京欢迎你!

若像这样，就会抛异常：

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>>> s2 = '%s欢迎您!' % u'北京'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe6 in position 2: ordinal not in range(128)

由UnicodeDecodeError可猜想得到，解析器尝试使用ascii对’%s欢迎您!’进行解码，由于’%s欢迎您!’实际是使用utf-8编码的（这是我系统终端默认的），所以使用ascii解码肯定会错，只要如下，就可以重现这个异常了：

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>>> s2 = '%s欢迎您!'.decode('ascii')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe6 in position 2: ordinal not in range(128)

分清encode和decode。str --> decode(c) --> unicode, unicode --> encode(c) --> str，其中编码类型c必须相同。

将unicode字符串写入文件前先使用特定编码对其进行编码(如unicodestr.encode('utf-8'))得到str，保证写入文件的是str；从文件读取到str，然后对其进行解码(如encodestr.decode('utf-8'))得到unicode。这是互逆的两个操作，编码类型一定要一致，否则会出现异常。

自己支持了unicode，但是你团队的其他人是否都使用unicode呢？你使用的其他模块是否也使用unicode呢？这个一定要清楚的，不然同样会出现许多因为编码问题的异常。

发表于 分类于

最近看了一下关于手机蓝牙的相关东西，涉及到了GameKit这个东西，不知道干嘛用的，一眼望过去以为是游戏的东西，不过看过文档后，其实也可以用在游戏中的。不过这里主要是蓝牙这方面的

关于聊天，其实就是就几个过程1，连接；2，传输数据和处理数据

关于这个过程其实我们可以直接自己写一个辅助类来解决就好了

我这边摘录了以为大牛的帮助类

GameKitHelper.h

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//
//  GameKitHelper.h
//  Simple GameKit
//
//  Created by david on 13-8-22.
//  Copyright (c) 2013年 WalkerFree. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import <GameKit/GameKit.h>

#define DO_DATA_CALLBACK(X, Y) if (self.dataDelegate && [self.dataDelegate respondsToSelector:@selector(X)]) [self.dataDelegate performSelector:@selector(X) withObject:Y];
#define showAlert(format, ...) myShowAlert(__LINE__, (char *)__FUNCTION__, format, ##__VA_ARGS__)
#define BARBUTTON(TITLE, SELECTOR) [[UIBarButtonItem alloc] initWithTitle:TITLE style:UIBarButtonItemStylePlain target:self action:SELECTOR]



@protocol GameKitHelperDataDelegate <NSObject>
@optional
-(void) connectionEstablished;
-(void) connectionLost;
-(void) sentData: (NSString *) errorMessage;
-(void) receivedData: (NSData *)data;
@end


@interface GameKitHelper : NSObject<GKPeerPickerControllerDelegate, GKSessionDelegate>
{
    NSString *sessionID;
    id<GameKitHelperDataDelegate> dataDelegate;
    UIViewController *viewController;
    
    GKSession *session;
    BOOL isConnected;
}

@property (retain) id dataDelegate;
@property (retain) UIViewController *viewController;
@property (retain) NSString *sessionID;
@property (retain) GKSession *session;
@property (assign) BOOL isConnected;

+(void) connect;
+(void) disconnect;
+(void) sendData: (NSData *)data;
+(void) assignViewController: (UIViewController *) aViewController;
+(GameKitHelper *) sharedInstance;
@end

GameKitHelper.m

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//
//  GameKitHelper.m
//  Simple GameKit
//
//  Created by david on 13-8-22.
//  Copyright (c) 2013年 WalkerFree. All rights reserved.
//

#import "GameKitHelper.h"

@implementation GameKitHelper
@synthesize dataDelegate;
@synthesize viewController;
@synthesize session;
@synthesize sessionID;
@synthesize isConnected;


//Simple Alert Utility
void myShowAlert(int line, char *functname, id formatstring, ...)
{
    va_list arglist;
    if(!formatstring)return;
    va_start(arglist, formatstring);
    id outstring = [[NSString alloc] initWithFormat:formatstring
                                          arguments:arglist];
    va_end(arglist);
    UIAlertView *av = [[UIAlertView alloc] initWithTitle:outstring
                                                 message:nil
                                                delegate:nil
                                       cancelButtonTitle:@"OK"
                                       otherButtonTitles: nil];
    [av show];
}

#pragma mark - Shared Instance
static GameKitHelper *sharedInstance = nil;

+(GameKitHelper *) sharedInstance
{
    if(!sharedInstance)
    {
        sharedInstance = [[self alloc] init];
    }
    return sharedInstance;
}

#pragma mark - Data Sharing
-(void) sendDataToPeers: (NSData *)data
{
    NSError *error;
    BOOL didSend = [self.session sendDataToAllPeers:data
                                       withDataMode:GKSendDataReliable
                                              error:&error];
    if(!didSend)
    {
        NSLog(@"Error sending data to peers: %@", [error localizedDescription]);
    }
    DO_DATA_CALLBACK(sentData:, (didSend ? nil : [error localizedDescription]));
}

-(void) receiveData:(NSData *)data fromPeer:(NSString *)peer inSession:(GKSession *)session context:(void *)context
{
    DO_DATA_CALLBACK(receivedData:, data);
}

#pragma mark - Connections
-(void) startConnection
{
    if(self.isConnected)
    {
        GKPeerPickerController *picker = [[GKPeerPickerController alloc] init];
        picker.delegate = self;
        picker.connectionTypesMask = GKPeerPickerConnectionTypeNearby;
        [picker show];
        if(self.viewController)
        {
            self.viewController.navigationItem.rightBarButtonItem = nil;
        }
    }
}

//Dismiss the peeer picker on cancel
-(void) peerPickerControllerDidCancel:(GKPeerPickerController *)picker
{
    if(self.viewController)
    {
        self.viewController.navigationItem.rightBarButtonItem = BARBUTTON(@"Connect", @selector(startConnection));
    }
}

-(void) peerPickerController:(GKPeerPickerController *)picker didConnectPeer:(NSString *)peerID toSession:(GKSession *)session
{
    [picker dismiss];
    [self.session setDataReceiveHandler:self
                            withContext:nil];
    isConnected = YES;
    DO_DATA_CALLBACK(connectionEstablished, nil);
}

-(GKSession *) peerPickerController:(GKPeerPickerController *)picker sessionForConnectionType:(GKPeerPickerConnectionType)type
{
    if(!self.session)
    {
        self.session = [[GKSession alloc] initWithSessionID:(self.sessionID ? self.sessionID : @"Sample Session")
                                                displayName:nil
                                                sessionMode:GKSessionModePeer];
        self.session.delegate = self;
    }
    
    return self.session;
    
}

#pragma mark - Session Handling
-(void) disconnect
{
    [self.session disconnectFromAllPeers];
    self.session = nil;
}

-(void) session:(GKSession *)session peer:(NSString *)peerID didChangeState:(GKPeerConnectionState)state
{
    /* STATES: GKPeerStateAvailable, = 0, GKPeerStateUnavailable, = 1, GKPeerStateConnected, = 2,
     GKPeerStateDisconnected, = 3, GKPeerStateConnecting = 4 */
    NSArray *states = [NSArray arrayWithObjects:@"Available", @"Unavailable", @"Connected", @"Disconnected", @"Connecting", nil];
    NSLog(@"Peer state is now %@",[states objectAtIndex:state]);
    
    if(state == GKPeerStateConnected)
    {
        if(self.viewController)
        {
            self.viewController.navigationItem.rightBarButtonItem = BARBUTTON(@"Disconnect", @selector(disconnect));
        }
        
        
        if(state  == GKPeerStateDisconnected)
        {
            self.isConnected = NO;
            showAlert(@"Lost connection with peer. You are no longer connected to another device.");
            [self disconnect];
            if(self.viewController)
            {
                self.viewController.navigationItem.rightBarButtonItem = BARBUTTON(@"Connect", @selector(startConnection));
                DO_DATA_CALLBACK(connectionLost, nil);
            }
        }
    }
    
}

-(void) assignViewController: (UIViewController *)aViewController
{
    self.viewController = aViewController;
    self.viewController.navigationItem.rightBarButtonItem = BARBUTTON(@"Connect", @selector(startConnection));
}

#pragma mark - Class utility methods
+(void) connect
{
    [[self sharedInstance] startConnection];
}

+(void) disconnect
{
    [[self sharedInstance] disconnect];
}

+(void) sendData: (NSData *)data
{
    [[self sharedInstance] sendDataToPeers:data];
}

+(void) assignViewController: (UIViewController *) aViewController
{
    [[self sharedInstance] assignViewController:aViewController];
}



@end

然后使用这里类，做了一个简单的示例，我因为就一个iphone，真实的两个手机之间的连接与信息通讯我没有测试过，这个在项目中是不可取的，不过这里我们就是做一个如何来使用这个GameKit的工具，如何实现这个过程，先感受一下，看下面的代码吧：

GameKitHelperViewController.h

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//
//  GameKitHelperViewController.h
//  Simple GameKit
//
//  Created by david on 13-8-22.
//  Copyright (c) 2013年 WalkerFree. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "GameKitHelper.h"

@interface GameKitHelperViewController : UIViewController<GameKitHelperDataDelegate,UITextViewDelegate>
@property (strong, nonatomic) IBOutlet UITextView *sendView;
@property (strong, nonatomic) IBOutlet UITextView *receviceView;

@end

GameKitHelperViewController.m

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//
//  GameKitHelperViewController.m
//  Simple GameKit
//
//  Created by david on 13-8-22.
//  Copyright (c) 2013年 WalkerFree. All rights reserved.
//

#import "GameKitHelperViewController.h"
#define COOKBOOK_PURPLE_COLOR    [UIColor colorWithRed:0.20392f green:0.19607f blue:0.61176f alpha:1.0f]


@interface GameKitHelperViewController ()

@end

@implementation GameKitHelperViewController
@synthesize sendView;
@synthesize receviceView;

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    self.navigationController.navigationBar.tintColor = COOKBOOK_PURPLE_COLOR;
    self.navigationItem.leftBarButtonItem = BARBUTTON(@"Clear", @selector(clear));
    
    [GameKitHelper sharedInstance].sessionID = @"Typing Together";
    [GameKitHelper sharedInstance].dataDelegate = self;
    [GameKitHelper assignViewController:self];
    [sendView becomeFirstResponder];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    
}

#pragma mark - methods of textview
-(void) textViewDidChange:(UITextView *)textView
{
    if(![GameKitHelper sharedInstance].isConnected)
    {
        return;
    }
    
    NSString *text = self.sendView.text;
    
    if(!text || (text.length == 0))
    {
        text = @"clear";
    }
    NSData *textData = [text dataUsingEncoding:NSUTF8StringEncoding];
    [GameKitHelper sendData:textData];
}

-(void) receivedData:(NSData *)data
{
    NSString *text = [[NSString alloc] initWithData:data
                                           encoding:NSUTF8StringEncoding];
    receviceView.text = [text isEqualToString:@"clear"] ? @"" : text;
}

-(void) clear
{
    sendView.text = @"";
}

@end

这里我是使用了storyboard，然后里面加了两个UITextView

发表于 分类于

首先要安装 Setuptools

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wget --no-check-certificate https://pypi.python.org/packages/2.6/s/setuptools/setuptools-0.6c11-py2.6.egg
sudo sh ./setuptools-0.6c11-py2.6.egg

安装PIP

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wget --no-check-certificate https://pypi.python.org/packages/source/p/pip/pip-1.4.tar.gz
tar -zxvf ./pip-1.4.tar.gz
cd pip-1.4
sudo python setup.py install

发表于 分类于

对于项目中，尤其是对于做web开发的话，页面的ajax的调用是少不了的，不过在使用django的框架的时候，已经很方便的提供了一个使用ajax 的库了，就是django-dajaxice，其如果安装都是很简单的，只要按照http://django-dajaxice.readthedocs.org/en/latest/installation.html这个说明进行安装，进行配置就好了，然后记得重新启动一下在运行就好了

往往会遇到这样的情况就是自己的static文件找不到，比如dajaxice.core.js这个文件找不到，千万不要试着去复制，那样是没有用的

只要记得同步一下static文件就好了

执行那个这个命令

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python manage.py collectstatic

为了确定确实存在我们需要的文件，建议执行一下这个命令

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python ./manage.py findstatic dajaxice/dajaxice.core.js

如果输出这个结果

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Found 'dajaxice/dajaxice.core.js' here:
  /tmp/tmpusCiQ2

说明这个文件是存在，那么执行上面的命令就没有什么问题啦

这里我将自己的示例代码贴一下

ajax.py

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#! -*- coding=utf-8 -*-
from django.utils import simplejson
from dajaxice.decorators import dajaxice_register

@dajaxice_register
def sayhello(request):
    return simplejson.dumps({'message':'Hello World'})
    
@dajaxice_register
def feeling(request):
    return simplejson.dumps({'message':'有感觉加1'})

@dajaxice_register
def no_feeling(request):
    return simplejson.dumps({'message':'没有感觉加1'})

home.html

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{% extends "base.html" %}
{% load staticfiles %}
{% load dajaxice_templatetags %}

{% block title %}享受购物的感觉{% endblock %}

{% block css %}
<link rel="stylesheet" href="{% static "waterfall/css/reset.css" %}">
<link rel="stylesheet" href="{% static "waterfall/css/waterfall.css" %}">
{% endblock %}

{% block content %}
<div class="container-fluid">
    <div class="row-fluid">
        <div class="span12">
            
            <div id='container'>
                {% if items_woman %}
                {% for item in items_woman %}
                <div class="item" >
                    <a target='_blank' title='{{ item.title }}' href='{{ item.url_address }}'>
                        <img src="{{ MEDIA_URL }}{{ item.large_image }}" width="192" height="288">
                    </a>
                    <h3>{{ item.title|slice:"10" }}</h3>
                    <p>{{ item.description|slice:"100" }}</p>
                    <p>
                        <a class="btn btn-primary" target='_blank' href="{{ item.url_address }}">浏览</a> 
                        <a class="btn have_feeling" href="#" onclick="Dajaxice.walkerfree.feeling(feeling_callback);">有感觉</a>
                        <a class="btn no_feeling" href="#" onclick="Dajaxice.walkerfree.no_feeling(no_feeling_callback);">没感觉</a>
                        <input type='hidden' value='woman' name='type'>
                    </p>
                </div>
                {% endfor %}
                {% endif %}

                {% if items_man %}
                {% for item in items_man %}
                <div class="item" >
                    <a target='_blank' title='{{ item.title }}' href='{{ item.url_address }}'>
                        <img src="{{ MEDIA_URL }}{{ item.large_image }}" width="192" height="288">
                    </a>
                    <h3>{{ item.title|slice:"10" }}</h3>
                    <p>{{ item.description|slice:"100" }}</p>
                    <p>
                        <a class="btn btn-primary" target='_blank' href="{{ item.url_address }}">浏览</a>
                        <a class="btn have_feeling" href="#" onclick="Dajaxice.walkerfree.feeling(feeling_callback);">有感觉</a>
                        <a class="btn no_feeling" href="#" onclick="Dajaxice.walkerfree.no_feeling(no_feeling_callback);">没感觉</a>
                        <input type='hidden' value='man' name='type'>
                    </p>
                </div>
                {% endfor %}
                {% endif %}

                {% if items_gifts %}
                {% for item in items_gifts %}
                <div class="item" >
                    <a target='_blank' title='{{ item.title }}' href='{{ item.url_address }}'>
                        <img src="{{ MEDIA_URL }}{{ item.large_image }}" width="192" height="288">
                    </a>
                    <h3>{{ item.title|slice:"10" }}</h3>
                    <p>{{ item.description|slice:"100" }}</p>
                    <p>
                        <a class="btn btn-primary" target='_blank' href="{{ item.url_address }}">浏览</a> 
                        <a class="btn have_feeling" href="#" onclick="Dajaxice.walkerfree.feeling(feeling_callback);">有感觉</a>
                        <a class="btn no_feeling" href="#" onclick="Dajaxice.walkerfree.no_feeling(no_feeling_callback);">没感觉</a>
                        <input type='hidden' value='gifts' name='type'>
                    </p>
                </div>
                {% endfor %}
                {% endif %}
            </div>
        </div>
    </div>
</div>
{% block js %}

<script type='text/javascript' src="{% static "waterfall/js/libs/handlebars/handlebars.js" %}"></script>
<script type='text/javascript' src="{% static "waterfall/js/waterfall.min.js" %}"></script>
<script>
$('#container').waterfall({
    itemCls: 'item',
    colWidth: 210,
    gutterWidth: 15,
    gutterHeight: 15,
    checkImagesLoaded: false,
    dataType: 'html',
    path: function(page) {
        return 'data/data.html?page=' + page;
    }
});
</script>
{% dajaxice_js_import %}
<script>
function my_js_callback(data){
    alert(data.message);
}
function feeling_callback(data){
    alert(data.message);
}
function no_feeling_callback(data){
    alert(data.message);
}
</script>
{% endblock %}

{% endblock %}

发表于 分类于

关于Django的分页处理

后端逻辑操作是这样的：

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# -*- coding: utf-8 -*-
from django.shortcuts import render_to_response
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
from man.models import Man

def home(request):
    if request.user.is_authenticated():
        user = request.user;
    else:
        user = request.user;
    items_mans = Man.objects.filter(is_show=0).order_by('-create_date').all()
    paginator_man = Paginator(items_mans,8)
    page = request.GET.get('page',1)
    try:
        items_man = paginator_man.page(page)
    except PageNotAnInteger:
        items_man = paginator_man.page(1)
    except EmptyPage:
        items_man = paginator_man.page(paginator_man.num_pages)

    return render_to_response('man/home.html',{
        'action':'man',
        'items_man':items_man,
        'user':user
        })

前端的页面处理是这样的

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<div class="row-fluid">
    <div class="span12">
        <div class="pagination pagination-centered">
            <ul>
                {% if items_man.has_previous %}
                    <li>
                        <a href="?page={{ items_man.previous_page_number }}">上一页</a>
                    </li>
                {% endif %}
                <li class='disabled'>
                    <a class="">
                        {{ items_man.number }} / {{ items_man.paginator.num_pages }}
                    </a>
                </li>
                {% if items_man.has_next %}
                <li>
                    <a href="?page={{ items_man.next_page_number }}">下一页</a>
                </li>
                {% endif %}
            </ul>
        </div>
    </div>
</div>

发表于 分类于

对于提交的苹果官方的app，在审核的时候会给我们一些crash文件，对于这些有用的文件，里面是关于我们的bug的一些信息，那么该如何去调试呢
第一步：在任意目录创建一个目录，用来调试crash，我这里创建一个crash目录
第二步：将之前Archive的文件copy到crash目录里面

其中包括两个文件.app和.app.dSYM

如果找不到的话可以按照下面的步骤进行

先到Organizer

1，找到提交那个时刻的Archive文件，选中，show in Finder

2，然后到达这里，然后再选中红色区域，会出现3中所示的提示

3，ok显示包内容，然后自己找找吧，肯定会有的

copy就好了

第三步：将symbolicatecrash工具copy到crash目录

找不到这个文件可以去

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/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/PrivateFrameworks/DTDeviceKit.framework/Versions/A/Resources

这里看看，应该就会有了。

第四步：将要调试的crash文件copy到crash目录

这个crash文件，这里是来自苹果官方的，其实有时候也是来自其他的用户的电脑上的。
第五步：通过命令进行测试
打开终端，转到crash目录
执行如下命令：

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./symbolicatecrash ./2013-08-16-035933_DLiPad.crash ./appname.app.dSYM > symbol.crash
cat ./symbol.crash

结果如下：

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Incident Identifier: 5434D911-E207-4D79-9139-40EA4EA76B45
CrashReporter Key:   d11ed3a4adbb0d9ca4d6016e73e439640f95f289
Hardware Model:      xxx
Process:         appname [8158]
Path:            /var/mobile/Applications/2AB1E8EB-6ECE-44F4-8195-4042339DD359/appname.app/appname
Identifier:      appname
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       2013-08-16 03:59:33.513 +0800
OS Version:      iOS 6.1.3 (10B329)
Report Version:  104

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread:  0

Last Exception Backtrace:
0   CoreFoundation                    0x3126029e 0x3119e000 + 795294
1   libobjc.A.dylib               0x3910497a 0x390fc000 + 35194
2   UIKit                         0x333f537c 0x33065000 + 3736444
3   UIKit                         0x3323758e 0x33065000 + 1910158
4   UIKit                         0x330c079c 0x33065000 + 374684
5   UIKit                         0x33068c34 0x33065000 + 15412
6   UIKit                         0x330686c8 0x33065000 + 14024
7   UIKit                         0x33068116 0x33065000 + 12566
8   GraphicsServices                  0x34d5c59e 0x34d56000 + 26014
9   GraphicsServices                  0x34d5c1ce 0x34d56000 + 25038
10  CoreFoundation                    0x3123516e 0x3119e000 + 618862
11  CoreFoundation                    0x31235112 0x3119e000 + 618770
12  CoreFoundation                    0x31233f94 0x3119e000 + 614292
13  CoreFoundation                    0x311a6eb8 0x3119e000 + 36536
14  CoreFoundation                    0x311a6d44 0x3119e000 + 36164
15  UIKit                         0x330bf480 0x33065000 + 369792
16  UIKit                         0x330bc2fc 0x33065000 + 357116
17  appname                            0x000cf358 0xce000 + 4952
18  libdyld.dylib                 0x3953bb1c 0x3953a000 + 6940


Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libsystem_kernel.dylib            0x39602350 __pthread_kill + 8
1   libsystem_c.dylib             0x3957911e pthread_kill + 54
2   libsystem_c.dylib             0x395b596e abort + 90
3   libc++abi.dylib               0x38b53d4a abort_message + 70
4   libc++abi.dylib               0x38b50ff4 default_terminate() + 20
5   libobjc.A.dylib               0x39104a74 _objc_terminate() + 144
6   libc++abi.dylib               0x38b51078 safe_handler_caller(void (*)()) + 76
7   libc++abi.dylib               0x38b51110 std::terminate() + 16
8   libc++abi.dylib               0x38b52594 __cxa_rethrow + 84
9   libobjc.A.dylib               0x391049cc objc_exception_rethrow + 8
10  CoreFoundation                    0x311a6f1c CFRunLoopRunSpecific + 452
11  CoreFoundation                    0x311a6d44 CFRunLoopRunInMode + 100
12  UIKit                         0x330bf480 -[UIApplication _run] + 664
13  UIKit                         0x330bc2fc UIApplicationMain + 1116
14  appname                                0x000cf358 0xce000 + 4952
15  libdyld.dylib                 0x3953bb1c start + 0

Thread 1:
0   libsystem_kernel.dylib            0x39602d98 __workq_kernreturn + 8
1   libsystem_c.dylib             0x39550cf6 _pthread_workq_return + 14
2   libsystem_c.dylib             0x39550a12 _pthread_wqthread + 362
3   libsystem_c.dylib             0x395508a0 start_wqthread + 4

Thread 2 name:  Dispatch queue: com.apple.libdispatch-manager
Thread 2:
0   libsystem_kernel.dylib            0x395f2648 kevent64 + 24
1   libdispatch.dylib             0x39522974 _dispatch_mgr_invoke + 792
2   libdispatch.dylib             0x39522654 _dispatch_mgr_thread$VARIANT$mp + 32

Thread 3:
0   libsystem_kernel.dylib            0x39602d98 __workq_kernreturn + 8
1   libsystem_c.dylib             0x39550cf6 _pthread_workq_return + 14
2   libsystem_c.dylib             0x39550a12 _pthread_wqthread + 362
3   libsystem_c.dylib             0x395508a0 start_wqthread + 4

Thread 4 name:  WebThread
Thread 4:
0   libsystem_kernel.dylib            0x395f1eb4 mach_msg_trap + 20
1   libsystem_kernel.dylib            0x395f2048 mach_msg + 36
2   CoreFoundation                    0x31235040 __CFRunLoopServiceMachPort + 124
3   CoreFoundation                    0x31233d9e __CFRunLoopRun + 878
4   CoreFoundation                    0x311a6eb8 CFRunLoopRunSpecific + 352
5   CoreFoundation                    0x311a6d44 CFRunLoopRunInMode + 100
6   WebCore                       0x37196500 RunWebThread(void*) + 440
7   libsystem_c.dylib             0x3955b30e _pthread_start + 306
8   libsystem_c.dylib             0x3955b1d4 thread_start + 4

Thread 0 crashed with ARM Thread State (32-bit):
    r0: 0x00000000    r1: 0x00000000      r2: 0x00000000      r3: 0x3b0f8534
    r4: 0x00000006    r5: 0x3b0f8b88      r6: 0x1d844f24      r7: 0x2fd329f4
    r8: 0x1d844f00    r9: 0x00000300     r10: 0x334de04b     r11: 0x1c535350
    ip: 0x00000148    sp: 0x2fd329e8      lr: 0x39579123      pc: 0x39602350
  cpsr: 0x00000010
......

再执行如下命令：

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关键是在这里0x000cf358，他是来自这里的

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0   libsystem_kernel.dylib            0x39602350 __pthread_kill + 8
1   libsystem_c.dylib             0x3957911e pthread_kill + 54
2   libsystem_c.dylib             0x395b596e abort + 90
3   libc++abi.dylib               0x38b53d4a abort_message + 70
4   libc++abi.dylib               0x38b50ff4 default_terminate() + 20
5   libobjc.A.dylib               0x39104a74 _objc_terminate() + 144
6   libc++abi.dylib               0x38b51078 safe_handler_caller(void (*)()) + 76
7   libc++abi.dylib               0x38b51110 std::terminate() + 16
8   libc++abi.dylib               0x38b52594 __cxa_rethrow + 84
9   libobjc.A.dylib               0x391049cc objc_exception_rethrow + 8
10  CoreFoundation                    0x311a6f1c CFRunLoopRunSpecific + 452
11  CoreFoundation                    0x311a6d44 CFRunLoopRunInMode + 100
12  UIKit                         0x330bf480 -[UIApplication _run] + 664
13  UIKit                         0x330bc2fc UIApplicationMain + 1116
14  应用的名称                                0x000cf358 0xce000 + 4952
15  libdyld.dylib                 0x3953bb1c start + 0

结果如下：

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----------------------------------------------------------------------
 File: appname.app.dSYM/Contents/Resources/DWARF/appname (armv7)
----------------------------------------------------------------------
Looking up address: 0x00000000000cf358 in .debug_info... found!

0x0015d390:
 Compile Unit: length = 0x00001fc6  version = 0x0002  abbr_offset = 
0x00000000  addr_size = 0x04  (next CU at 0x0015f35a)

0x0015d39b: TAG_compile_unit [1] *
             AT_producer( "Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn)" )
             AT_language( DW_LANG_ObjC )
             AT_name( "/Users/zhy/Downloads/ios/xxx/xxx/library/ASIHttpRequest/ASIDownloadCache.m" )
             AT_low_pc( 0x000ccfc0 )
             AT_stmt_list( 0x0002cf0b )
             AT_comp_dir( "/Users/zhy/Downloads/ios/vlink_app_xunyi" )
             AT_APPLE_major_runtime_vers( 0x02 )

0x0015dd38:     TAG_subprogram [53] *
                 AT_name( "-[ASIDownloadCache isCachedDataCurrentForRequest:]" )
                 AT_decl_file( "/Users/zhy/Downloads/ios/xxx/xxx/library/ASIHttpRequest/ASIDownloadCache.m" )
                 AT_decl_line( 315 )
                 AT_prototyped( 0x01 )
                 AT_type( {0x0015d490} ( BOOL ) )
                 AT_APPLE_isa( 0x01 )
                 AT_low_pc( 0x000cf278 )
                 AT_high_pc( 0x000cf9e2 )
                 AT_frame_base( r7 )
                 AT_object_pointer( {0x0015dd54} )

0x0015dd86:         TAG_lexical_block [10] *
                     AT_low_pc( 0x000cf2ca )
                     AT_high_pc( 0x000cf9de )
Line table dir : '/Users/zhy/Downloads/ios/xxx/xxx/library/ASIHttpRequest'
Line table file: 'ASIDownloadCache.m' line 320, column 3 with start address 0x00000000000cf340

Looking up address: 0x00000000000cf358 in .debug_frame... found!

0x00007290: FDE
        length: 0x0000000c
   CIE_pointer: 0x00000000
    start_addr: 0x000cf278 -[ASIDownloadCache isCachedDataCurrentForRequest:]
    range_size: 0x0000076a (end_addr = 0x000cf9e2)
  Instructions: 0x000cf278: CFA=4294967295+4294967295

到这里就知道问题所在了吧

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Line table dir : '/Users/zhy/Downloads/ios/xxx/xxx/library/ASIHttpRequest'
Line table file: 'ASIDownloadCache.m' line 320, column 3 with start address 0x00000000000cf340

如果有多个crash文件的话，可以重复操作一遍就好了。

发表于 分类于

第一步：创建应用

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python manage.py startapp accounts

第二步：url规则添加

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#用户的处理中心
url(r'^accounts/$','accounts.views.index',name='accounts_home'),
url(r'^accounts/register$','accounts.views.register',name='accounts_register'),
url(r'^accounts/login$','accounts.views.login',name='accounts_login'),
url(r'^accounts/logout$','accounts.views.logout',name='accounts_logout'),

第三步：action的添加

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#!-*- coding=utf-8 -*-

'''
用户中心
'''
def home(request):
    pass

'''
用户注册页
'''
def register(request):
    pass

'''
用户登录页
'''
def login(request):
    pass

'''
用户注销页accounts
'''
def logout(request):
    pass

第四步：template文件（模板文件的添加）的添加
注册页面（这个页面根据自己的需求定义，项目不同，设计不同）

登录页面（这个页面根据自己的需求定义，项目不同，设计不同）

个人中心（这个页面根据自己的需求定义，项目不同，设计不同）

第五步：完善action

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#!-*- coding=utf-8 -*-
from django.shortcuts import render_to_response
from django.template import RequestContext
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext as _
from django import forms
from django.contrib.auth import authenticate, login as auth_login, logout as auth_logout
from django.contrib.messages import constants as messages
from django.contrib import messages
from django.contrib.auth.models import User



def home(request):
    '''用户中心'''
    if request.user.is_authenticated():
        user = request.user;
    else:
        user = request.user;
    return render_to_response('accounts/home.html',{'user':user},context_instance=RequestContext(request));

def register(request):
    '''用户注册页'''
    template_var = {}
    form = RegisterForm()
    if request.method=="POST":
        form=RegisterForm(request.POST.copy())
        if form.is_valid():
            username = form.cleaned_data["username"]
            email = form.cleaned_data["email"]
            password = form.cleaned_data["password"]
            repassword = form.cleaned_data["repassword"]
            if password != repassword:
                return HttpResponse('重复登录密码与登录密码不一致');
            user = User.objects.create_user(username, email, password)
            user.save()
            validate_login(request, email, password)
            return HttpResponseRedirect(reverse("accounts_home"))
    return render_to_response('accounts/register.html',{'form':form},context_instance=RequestContext(request));

def validate_login(request, username, password):
    '''验证用户登录'''
    return_value = False
    user = authenticate(username=username,password=password)
    if user:
        if user.is_active:
            auth_login(request,user)
            return_value = True
        else:
            messages.add_message(request, messages.INFO, _(u'此账户尚未激活，请联系管理员'))
    else:
        messages.add_message(request, messages.INFO, _(u'此账户不存在，请联管理员'))

    return return_value

def login(request):
    '''用户登录页'''
    template_var = {}
    form = LoginForm()
    if request.method == "POST":
        form = LoginForm(request.POST.copy())
        if form.is_valid():
            validate_login(request, form.cleaned_data["username"], form.cleaned_data["password"])
            return HttpResponseRedirect(reverse('accounts_home'))
    template_var["form"] = form
    return render_to_response('accounts/login.html', template_var, context_instance=RequestContext(request));


def logout(request):
    '''用户注销页'''
    auth_logout(request)
    return HttpResponseRedirect(reverse('home'))

class LoginForm(forms.Form):
    username=forms.CharField(label=_(u"登录账号"), widget=forms.TextInput(attrs={'placeholder':'登录账号','class':'input-block-level'}))
  
    password=forms.CharField(label=_(u"登录密码"), 
widget=forms.PasswordInput(attrs={'placeholder':'登录密码','class':'input-block-level'}))

class RegisterForm(forms.Form):
    '''注册表单'''
    username=forms.CharField(label=_(u"登录账号"), widget=forms.TextInput(attrs={'placeholder':'登录账号','class':'input-block-level'}))
    email=forms.EmailField(label=_(u"邮件地址"), widget=forms.TextInput(attrs={'placeholder':'登录邮箱','class':'input-block-level'}))
    password=forms.CharField(label=_(u"登录密码"), widget=forms.PasswordInput(attrs={'placeholder':'登录密码','class':'input-block-level'}))
    repassword=forms.CharField(label=_(u"重复登录密码"), widget=forms.PasswordInput(attrs={'placeholder':'重复登录密码','class':'input-block-level'}))

    def clean_username(self):
        '''验证昵称'''
        username = User.objects.filter(username__iexact=self.cleaned_data["username"])
        if not username:
            return self.cleaned_data["username"];
        raise forms.ValidationError(_(u"该昵称已经被使用"));

    def clean_email(self):
        '''验证email'''
        email = User.objects.filter(email__iexact=self.cleaned_data["email"])
        if not email:
            return self.cleaned_data["email"];
        raise forms.ValidationError(_(u"改邮箱已经被使用"));
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