Latest from ChinaonRails's Plugins

使用seo_checker检查你的网站是否seo ... no reply

flyerhzm — Sun, 07 Mar 2010 17:39:25 +0800

前几天刚刚做了一个rubygem seo_checker，主要是根据google出的search-engine-optimization-starter-guide.pdf来检查一些基本的seo。

检查内容包括：
use sitemap file
each page are reachable
each page has title
use unique title tags for each page
each page has meta description
ues unique descriptions for each page
url does not just use ID number.
url does not use excessive keywords
url does not have deep nesting of subdirectories

项目地址：http://github.com/flyerhzm/seo_checker

欢迎试用

bullet2 beta released, supports rails3 beta ... no reply

flyerhzm — Sun, 07 Mar 2010 17:09:44 +0800

这两天升级了bullet gem，使得可以支持rails3 beta。

bullet gem旨在通过减少sql 查询数量来帮助你提高应用的性能。它会在你开发应用的时候监视你的sql查询，并提醒你哪里应该加eager loading（避免N+1查询），哪里使用了无用的eager loading，哪里应该使用counter cache。

项目地址：http://github.com/flyerhzm/bullet

现在比较流行出beta版的gem，如rails3和rspec2，所以我也赶下时髦，把当前版本作为beta版，等rails3正式release了，bullet2再发布正式版。

安装：sudo gem install bullet --pre

具体使用参看http://github.com/flyerhzm/bullet，其中Step by step example也已升级为rails3 beta应用。

欢迎大家使用

谢谢

twitter的开源工具。。 ... no reply

rociiu — Thu, 04 Mar 2010 09:54:06 +0800

http://github.com/mzsanford/twitter-text-rb

Twitter text processing library (auto linking and extraction of usernames, lists and hashtags)
http://engineering.twitter.com/2010/02/introducing-open-source-twitter-text.html

rails3 插件网检查是否相配 ... 1 reply

bd7lx — Mon, 08 Feb 2010 11:14:21 +0800

http://www.railsplugins.org/home

Is Your Plugin Ready For Rails 3?

GemInABox 做个自己公司内部的gemcutter放gems ... no reply

bd7lx — Thu, 04 Feb 2010 13:30:58 +0800

http://github.com/cwninja/geminabox/

Really simple rubygem hosting
Gem in a box is a simple sinatra app to allow you to host your own own in-house gems.
http://tomlea.co.uk/posts/0003-gem-in-a-box/

设计是为了内部使用，没考虑到安全的问题和用户认证，如需要得自己加

chinese_permalink ... 8 replies

flyerhzm — Sun, 24 Jan 2010 14:09:03 +0800

之前写的一个project，主要用来把中文内容翻译成英文的URL，通过google translate做的翻译。正好今天用到，所以重新把它做成了gem，方便使用。

项目地址：http://github.com/flyerhzm/chinese_permalink

缓存延迟你的 views_count ... no reply

huacnlee — Thu, 14 Jan 2010 17:51:40 +0800

项目有很多时候需要进行统计单篇文章的访问次数，如文章、帖子、图片...
于是在表里面设计一个 views_count 字段作为计数器，然后查看页面的时候更新这个字段。

但一般情况下我们都需要对 views_count 的写入数据库做一下延迟，存到缓存里面去，到了一定数量在更新数据库。

为了方便使用，我把之前的方式改写成了一个插件
acts_as_views_count:http://github.com/huacnlee/acts_as_views_count

使用：
Model

class Post < ActiveRecord::Base
acts_as_views_count
end

class Topic < ActiveRecord::Base
# set delay save to db with 30
acts_as_views_count :delay => 30
end

Controller

class PostsController < ApplicationController
def show
@post = Post.find(params[:id])
# update views_count
@post.update_views_count
end
end

View

<p>
view:<%= @post.views_count_s %> comment: <%= @post.comments_count %>
</p>

flyerhzm-metric_fu = metric_fu + rails_best_practices ... 1 reply

flyerhzm — Sun, 03 Jan 2010 21:46:49 +0800

之前fork了metric_fu，加上了自己的rails_best_practices，不过metric_fu的作者似乎对rails_best_practices不感兴趣，所以我只能自己生成gem了。

如果大家在使用metric_fu，而且对rails_best_practices感兴趣的话，可以试试flyerhzm-metric_fu

项目地址：http://github.com/flyerhzm/metric_fu

使用方法和metric_fu相同

Testing Exception ... no reply

flyerhzm — Thu, 24 Dec 2009 15:29:26 +0800

最近看了railscasts 187——Testing Exception，http://railscasts.com/episodes/187-testing-exceptions，教我们如何重现实际环境下产生的exception，感觉非常有用。

然后fork了exception_notification项目，根据exception，自动生成测试代码，并随邮件一起发出来，其中id转换为相应的fixture object需要手动修改。有兴趣的同学可以试试

项目地址：http://github.com/flyerhzm/exception_notification

下面是exception_notification生成的邮件，最后一段是test代码

Date: Thu, 24 Dec 2009 12:30:48 +0800
From: Exception Notifier <exception.notifier@default.com>
Subject: [ERROR] posts#index (ActionView::TemplateError) "You have a nil object when you didn't expect it!\nYou might have expected an instance of Array.\nThe error occurred while evaluating
nil.each"
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8

A ActionView::TemplateError occurred in posts#index:

You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.each
On line #8 of app/views/posts/index.html.erb

5: <th>Name</th>
6: </tr>
7:
8: <% for post in @posts %>
9: <tr>
10: <td><%=h post.name %></td>
11: <td><%= post.comments.collect(&:name) %></td>

app/views/posts/index.html.erb:8
app/controllers/posts_controller.rb:7:in `index'

-------------------------------
Request:
-------------------------------

* URL : http://localhost:8000/posts
* IP address: 127.0.0.1
* Parameters: {"action"=>"index", "controller"=>"posts"}
* Rails root: /Users/richard/Downloads/test

-------------------------------
Session:
-------------------------------

* session id: nil
* data: nil

-------------------------------
Environment:
-------------------------------

* GATEWAY_INTERFACE : CGI/1.2
* HTTP_ACCEPT : text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
* HTTP_ACCEPT_CHARSET : ISO-8859-1,utf-8;q=0.7,*;q=0.7
* HTTP_ACCEPT_ENCODING : gzip,deflate
* HTTP_ACCEPT_LANGUAGE : en-us,en;q=0.5
* HTTP_CONNECTION : keep-alive
* HTTP_COOKIE : user_credentials=802e82e5fdaae678c560cb83608b57dd014606cc107a8a74aa1ec76d6ef05ceb2434c32bc70f1907b4fe2fefe8e879d07fedab9bb5dbe08f640381ee710a8ab8%3A%3A1; _idlebeats_session=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%3D%3D--7ff31223ff235681faff21bcde171c70fae95ab4; _huangzhimin.com_session=BAh7CDoQX2NzcmZfdG9rZW4iMTFrRzdIcnRxQzlKS0pFUWFEMnBDcjVJcW5YRlZaQnl4dnpYMG1TaXRydnc9IgpmbGFzaElDOidBY3Rpb25Db250cm9sbGVyOjpGbGFzaDo6Rmxhc2hIYXNoewc6FHJlY2FwdGNoYV9lcnJvciIaaW5jb3JyZWN0LWNhcHRjaGEtc29sOgplcnJvciIiQ29tbWVudCB3YXMgZmFpbGVkIHRvIGNyZWF0ZS4GOgpAdXNlZHsHOwdUOwhUOg9zZXNzaW9uX2lkIiU2MTliNjY1MGI5M2I1N2U4NjkyNTEyMWRjODk0MzU5Mg%3D%3D--f0e5c9a040493f127cd399fad010fbc7231b7b8f; _store_session=BAh7BzoQX2NzcmZfdG9rZW4iMWpZalZSRjJzeHVaU215YjMzR2tYN3BOeHdZdUFVNjNReXhxOCtYZ2xQZ009Og9zZXNzaW9uX2lkIiU2OTBhYjdiZWE1NDc1OGIxNGJkY2ZkMDliMjc3Yzc0Nw%3D%3D--c6bfbbb6d932df58bbc0b3c7912a79361c000d94
* HTTP_HOST : localhost:8000
* HTTP_KEEP_ALIVE : 300
* HTTP_USER_AGENT : Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6
* HTTP_VERSION : HTTP/1.1
* PATH_INFO : /posts
* QUERY_STRING :
* REMOTE_ADDR : 127.0.0.1
* REQUEST_METHOD : GET
* REQUEST_PATH : /posts
* REQUEST_URI : /posts
* SCRIPT_NAME :
* SERVER_NAME : localhost
* SERVER_PORT : 8000
* SERVER_PROTOCOL : HTTP/1.1
* SERVER_SOFTWARE : Mongrel 1.1.5
* action_controller.request.path_parameters : actionindexcontrollerposts
* action_controller.request.query_parameters :
* action_controller.request.request_parameters:
* action_controller.rescue.request : #<ActionController::Request:0x232b778>
* action_controller.rescue.response : #<ActionController::Response:0x232b4f8>
* rack.errors : #<IO:0x2ddc0>
* rack.input : #<StringIO:0x24e9538>
* rack.multiprocess : false
* rack.multithread : false
* rack.request.query_hash :
* rack.request.query_string :
* rack.run_once : false
* rack.session :
* rack.session.options : httponlytruepath/domainkey_session_idexpire_after
* rack.url_scheme : http
* rack.version : 01

* Process: 98384
* Server : Macintosh

-------------------------------
Backtrace:
-------------------------------

On line #8 of app/views/posts/index.html.erb

5: <th>Name</th>
6: </tr>
7:
8: <% for post in @posts %>
9: <tr>
10: <td><%=h post.name %></td>
11: <td><%= post.comments.collect(&:name) %></td>

app/views/posts/index.html.erb:8
app/controllers/posts_controller.rb:7:in `index'

-------------------------------
Test:
-------------------------------

require 'test_helper'

class ExceptionsTest < ActionController::IntegrationTest
fixtures :all

test "GET /posts" do
get "/posts", {}
assert_response :success
end
end

控制器级别的健康监控 ... no reply

bd7lx — Tue, 15 Dec 2009 08:29:47 +0800

http://github.com/blythedunham/health_monitor

Health Monitor
Monitor individual aspects of your rails application’s health

Most rails applications have many additional moving parts of which the health cannot be assessed with simply pinging the (hopefully page cached) homepage

例如
邮件是否成功发出了
Is the SMS gateway alive and you bought sufficient credits?
All database connections are alive? Backgroundrb down again?
The cloud computing setup jacked the imagemagick? Again?
You are running out of disk space and there are no more file descriptors for your
The git SHA and version is what ?

Versionomy （生成、解析、比较）版本号的插件 ... no reply

bd7lx — Wed, 02 Dec 2009 08:38:45 +0800

http://github.com/dazuma/versionomy

Versionomy is a generalized version number library. It provides tools to represent, manipulate, parse, and compare version numbers in the wide variety of versioning schemes in use.

http://www.daniel-azuma.com/blog/view/z1m1jlq3vu71y5/ruby_version_numbers_done_right_

nouse同学关于ActiveMerchant的patch，支持支付宝，财付通和快钱 ... 4 replies

flyerhzm — Wed, 25 Nov 2009 12:33:18 +0800

之前nouse同学关于ActiveMerchant的patch，支持支付宝，财付通和快钱，很不错，不过使用patch毕竟不方便，所以在征得nouse同学的同意之后，把这个patch做成了一个插件放到github上面，也可以作为gem使用。

项目地址：http://github.com/flyerhzm/activemerchant_patch_for_china

已经测试过支付宝，可以正常使用，另外按照支付宝的文档，支持了所有的请求和应答参数。

README上面有很详细的介绍，希望对大家有帮助

ar_merge 合并活动记录 ... no reply

bd7lx — Tue, 17 Nov 2009 14:53:39 +0800

Merge 2 ActiveRecords, preserving attributes, associations and counters

http://github.com/grosser/ar_merge

Rails Best Practices ... 14 replies

flyerhzm — Sun, 08 Nov 2009 23:45:30 +0800

相信大家一定还记得Kungfu Rails上张先生关于Rails Best Practices的演讲，非常精彩，忍不住就想把这些practices全部应用到实际项目中。所以最近正在写一个gem把这些practices的检查都做成自动化的。

项目地址：http://github.com/flyerhzm/rails_best_practices

主要思想是通过代码静态分析，找出违反practices的地方

README的最后一块是现在项目的进度，完成度大概在70%左右吧

首先是安装
sudo gem install rails_best_practices --source http://gemcutter.org

使用起来很简单，直接在rails app根目录，执行
rails_best_practices .
就可以了

下面是对我自己的website的代码的检查结果：
./config/routes.rb:62 - not use default route
./config/routes.rb:63 - not use default route
./db/migrate/008_create_blogs.rb:9 - isolate seed data
./db/migrate/008_create_blogs.rb:9 - isolate seed data
./app/views/comments/index.atom.builder:6 - law of demeter
./app/views/comments/index.atom.builder:7 - law of demeter
./app/controllers/msnspaces_backup_controller.rb:6 - move model logic into model (@results called_count > 4)
./app/controllers/msnspaces_backup_controller.rb:6 - move model logic into model (comment_websites called_count > 4)
./db/migrate/001_create_posts.rb:2 - always add db index (comments => post_id)
./db/migrate/001_create_posts.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/002_create_comments.rb:2 - always add db index (comments => post_id)
./db/migrate/002_create_comments.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/003_add_name_mail_website_to_comments.rb:2 - always add db index (comments => post_id)
./db/migrate/003_add_name_mail_website_to_comments.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/004_acts_as_taggable_migration.rb:2 - always add db index (comments => post_id)
./db/migrate/004_acts_as_taggable_migration.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/005_add_comments_count_to_posts.rb:2 - always add db index (comments => post_id)
./db/migrate/005_add_comments_count_to_posts.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/006_add_cached_tag_list_to_posts.rb:2 - always add db index (comments => post_id)
./db/migrate/006_add_cached_tag_list_to_posts.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/007_create_users.rb:2 - always add db index (comments => post_id)
./db/migrate/007_create_users.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/008_create_blogs.rb:2 - always add db index (comments => post_id)
./db/migrate/008_create_blogs.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/009_create_categories.rb:2 - always add db index (comments => post_id)
./db/migrate/009_create_categories.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/010_add_posts_count_to_categories.rb:2 - always add db index (comments => post_id)
./db/migrate/010_add_posts_count_to_categories.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/011_create_blogrolls.rb:2 - always add db index (comments => post_id)
./db/migrate/011_create_blogrolls.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/012_create_codes.rb:2 - always add db index (comments => post_id)
./db/migrate/012_create_codes.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/013_create_entries.rb:2 - always add db index (comments => post_id)
./db/migrate/013_create_entries.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/014_drop_title_from_codes.rb:2 - always add db index (comments => post_id)
./db/migrate/014_drop_title_from_codes.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/015_create_pasters.rb:2 - always add db index (comments => post_id)
./db/migrate/015_create_pasters.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/016_remove_iframe_from_entries.rb:2 - always add db index (comments => post_id)
./db/migrate/016_remove_iframe_from_entries.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/017_remove_codes.rb:2 - always add db index (comments => post_id)
./db/migrate/017_remove_codes.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/20090524154500_create_projects.rb:2 - always add db index (comments => post_id)
./db/migrate/20090524154500_create_projects.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/20090527143212_change_comment_to_polymorphic.rb:2 - always add db index (comments => post_id)
./db/migrate/20090527143212_change_comment_to_polymorphic.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/20090527163947_add_comments_count_to_entries.rb:2 - always add db index (comments => post_id)
./db/migrate/20090527163947_add_comments_count_to_entries.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/20090607135100_add_url_to_projects.rb:2 - always add db index (comments => post_id)
./db/migrate/20090607135100_add_url_to_projects.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/20090607144108_add_comments_count_to_projects.rb:2 - always add db index (comments => post_id)
./db/migrate/20090607144108_add_comments_count_to_projects.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/20090809143849_add_permalink_to_entries.rb:2 - always add db index (comments => post_id)
./db/migrate/20090809143849_add_permalink_to_entries.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./db/migrate/20090818130258_add_description_to_projects.rb:2 - always add db index (comments => post_id)
./db/migrate/20090818130258_add_description_to_projects.rb:2 - always add db index (tags => tag_id, tags => taggable_id)
./app/controllers/comments_controller.rb:6 - move finder to named_scope
./app/controllers/msnspaces_backup_controller.rb:106 - move finder to named_scope

Found 58 errors.

如果大家对这个项目有兴趣的话，我希望大家能够在实际的项目中使用一下，然后多给我点反馈，这样我可以更好地完善它，谢谢

最后贴一下所有的检查列表吧
* Lesson 1. Move code from Controller to Model
1. Move finder to named_scope
2. Use model association
3. Use scope access
4. Add model virtual attribute
5. Use model callback
6. Replace Complex Creation with Factory Method
7. Move Model Logic into the Model
8. model.collection_model_ids (many-to-many)
9. Nested Model Forms (one-to-one)
10. Nested Model Forms (one-to-many)

* Lesson 2. RESTful Conventions
1. Overuse route customizations
2. Needless deep nesting
3. Not use default route

* Lesson 3. Model
1. Keep Finders on Their Own Model
2. Love named_scope # same as Move finder to named_scope
3. the Law of Demeter
4. DRY: metaprogramming
5. Extract into Module
6. Extract to composed class
7. Use Observer

* Lesson 4. Migration
1. Isolating Seed Data
2. Always add DB index

* Lesson 5. Controller
1. Use before_filter
2. DRY Controller

* Lesson 6. View
1. Move code into controller
2. Move code into model
3. Move code into helper
4. Replace instance variable with local variable
5. Use Form Builder
6. Organize Helper files

alchemist 度量单位转换，一汤匙等于多少品脱? ... 1 reply

bd7lx — Wed, 28 Oct 2009 17:59:19 +0800

http://github.com/toastyapps/alchemist

炼金术士的魔力

8.meters.to.miles

10.kilometers + 1.mile # 11.609344 kilometers

Validatable ... 7 replies

bd7lx — Mon, 26 Oct 2009 15:38:12 +0800

Validatable
Validatable is a library for adding validations.

by Jay Fields

http://validatable.rubyforge.org/

Association add-on for the Validatable gem
http://github.com/rubiii/validatable_associations

自动生成css sprite image ... 2 replies

flyerhzm — Wed, 30 Sep 2009 10:36:48 +0800

生成css sprite image的插件，减少http request，方便css维护

项目地址：http://github.com/flyerhzm/css_sprite

介绍可以参看javaeye上面的一篇文章：http://www.javaeye.com/topic/480705，不知道在这里怎么加图片，只能转链接了

LinkedIn提醒用户输入个人资料的完成度，此插件效法之 100% 完成 completeness-fu ... no reply

bd7lx — Thu, 24 Sep 2009 11:20:03 +0800

http://blog.tty.nl/2009/09/23/100-completeness-fu/

http://github.com/joshk/completeness-fu

给模型完成度打分

yaml_db, 各种database backends之间互相转换 ... 3 replies

leomayleomay — Tue, 22 Sep 2009 16:06:44 +0800

http://github.com/leomayleomay/yaml_db

轻松实现ActiveRecord支持的各种database backends，如MySQL, Sqlite等等之间的互转。

现在使用，更支持单表dump，多表dump，所有表dump。

给控制器加哨兵，request_sentry搬出400 拒绝请求带有恶意畸形参数 ... no reply

bd7lx — Fri, 18 Sep 2009 15:38:10 +0800

http://github.com/ssoroka/request_sentry

This Rails plugin provides a DSL for your controller to reject requests (via "400 Bad Request") that supply malicious or malformed parameters

Example
=======

class MyController < ApplicationController
accept_only :number, :for => :age
accept_only :boolean, :for => [:wants_newsletter, :email_alerts]
accept_only String::VALID_POSTAL, :for => :postal_code
accept_only /\d{3}\-\d{4}/, :for => :phone

#....
end

HTTP 400 错误 - 请求无效