Rails的国际化
Posted on 2009年3月08日 07:44国际化——I18N，很多软件都需要类似的功能，好在Rails2.2中有了简单实现。
不过，我要面临更复杂的问题：
- 国际化时，不但要替换相应的文本信息，还要做大面积的（基本就是全部）的页面布局调整；
- 国际化不是针对浏览器中比较通行的语言－地区（或者方言）的翻译互换，而是自定义的语言转换；
这个问题怎么解决？暂时还没有想好，只找到了两篇我认为可以借鉴的参考文献：
Debian lenny下安装配置Rails开发环境
Posted on 2009年2月25日 16:49Debian 5（lenny）已经正式发布了，相信很多朋友跟我一样，也用的是Debian。
那么，在Debian下，安装配置Rails开发环境是否能够顺利呢？跟我一起来一遍：
安装Ruby，这里使用lenny源里默认的ruby版本1.8.7：
sudo apt-get install ruby rdoc1.8 ri1.8
下载安装rubygems1.3.1。下载解压然后在该文件夹内执行
sudo ruby setup.rb
安装完毕，默认在/usr/bin下使用gem1.8作为gem的调用命令，因此做一个符号链接
sudo ln -s /usr/bin/gem1.8 /usr/bin/gem
然后，安装rails
sudo gem i rails
安装完毕测试rails -v正常。安装mongrel
sudo gem i mongrel
出现类似于
no such file to load -- mkmf (LoadError)
的错误，可以通过安装ruby1.8-dev解决
sudo apt-get install ruby1.8-dev
如果出现的是类似于本地编译的错误，英文好像是native compile什么的，那你一定是没有安装编译包build-essential，使用Linux，这是必不可少的，一定要在安装完Linux系统后，首先就来这么一下
sudo apt-get install build-essential
书归正传，然后接着安装mongrel
sudo gem i mongrel
一切正常。安装Sqlite3
sudo apt-get install sqlite3 libsqlite3-0 libsqlite3-dev libsqlite3-ruby libsqlite3-ruby1.8
sudo gem i sqlite3-ruby
sudo gem i sqlite3-ruby
接下来安装MySQL
sudo apt-get install mysql-server
然后安装MySQL的驱动
sudo gem i mysql
出错。经过Google，需要先
sudo apt-get install libmysqlclient15-dev
然后
sudo gem i mysql
测试Rails
rails test
cd test
script/server
cd test
script/server
启动出错：
其中有类似“ no such file to load -- openssl (RuntimeError)”的句子
原来，需要
sudo apt-get install libopenssl-ruby1.8 openssl libssl-dev libopenssl-ruby
再次启动服务器
script/server
运行正常。
Rake的任务
Posted on 2009年2月20日 18:26Rake常用的类似于 db:create等，都已被熟知，这次，想要查看所有的Rake任务，使用了命令
rake --task
显示任务如下：
rake db:abort_if_pending_migrations # Raises an error if there are pending...
rake db:charset # Retrieves the charset for the curren...
rake db:collation # Retrieves the collation for the curr...
rake db:create # Create the database defined in confi...
rake db:create:all # Create all the local databases defin...
rake db:drop # Drops the database for the current R...
rake db:drop:all # Drops all the local databases define...
rake db:fixtures:identify # Search for a fixture given a LABEL o...
rake db:fixtures:load # Load fixtures into the current envir...
rake db:migrate # Migrate the database through scripts...
rake db:migrate:down # Runs the "down" for a given migratio...
rake db:migrate:redo # Rollbacks the database one migration...
rake db:migrate:reset # Resets your database using your migr...
rake db:migrate:up # Runs the "up" for a given migration ...
rake db:reset # Drops and recreates the database fro...
rake db:rollback # Rolls the schema back to the previou...
rake db:schema:dump # Create a db/schema.rb file that can ...
rake db:schema:load # Load a schema.rb file into the database
rake db:sessions:clear # Clear the sessions table
rake db:sessions:create # Creates a sessions migration for use...
rake db:structure:dump # Dump the database structure to a SQL...
rake db:test:clone # Recreate the test database from the ...
rake db:test:clone_structure # Recreate the test databases from the...
rake db:test:prepare # Prepare the test database and load t...
rake db:test:purge # Empty the test database
rake db:version # Retrieves the current schema version...
rake doc:app # Build the app HTML Files
rake doc:clobber_app # Remove rdoc products
rake doc:clobber_plugins # Remove plugin documentation
rake doc:clobber_rails # Remove rdoc products
rake doc:plugins # Generate documentation for all insta...
rake doc:rails # Build the rails HTML Files
rake doc:reapp # Force a rebuild of the RDOC files
rake doc:rerails # Force a rebuild of the RDOC files
rake gems # List the gems that this rails applic...
rake gems:build # Build any native extensions for unpa...
rake gems:install # Installs all required gems for this ...
rake gems:unpack # Unpacks the specified gem into vendo...
rake gems:unpack:dependencies # Unpacks the specified gems and its d...
rake log:clear # Truncates all *.log files in log/ to...
rake notes # Enumerate all annotations
rake notes:fixme # Enumerate all FIXME annotations
rake notes:optimize # Enumerate all OPTIMIZE annotations
rake notes:todo # Enumerate all TODO annotations
rake rails:freeze:edge # Lock to latest Edge Rails, for a spe...
rake rails:freeze:gems # Lock this application to the current...
rake rails:unfreeze # Unlock this application from freeze ...
rake rails:update # Update both configs, scripts and pub...
rake rails:update:configs # Update config/boot.rb from your curr...
rake rails:update:javascripts # Update your javascripts from your cu...
rake rails:update:scripts # Add new scripts to the application s...
rake routes # Print out all defined routes in matc...
rake secret # Generate a crytographically secure s...
rake stats # Report code statistics (KLOCs, etc) ...
rake test # Run all unit, functional and integra...
rake test:functionals # Run tests for functionalsdb:test:pre...
rake test:integration # Run tests for integrationdb:test:pre...
rake test:plugins # Run tests for pluginsenvironment / R...
rake test:recent # Run tests for recentdb:test:prepare ...
rake test:uncommitted # Run tests for uncommitteddb:test:pre...
rake test:units # Run tests for unitsdb:test:prepare /...
rake time:zones:all # Displays names of all time zones rec...
rake time:zones:local # Displays names of time zones recogni...
rake time:zones:us # Displays names of US time zones reco...
rake tmp:cache:clear # Clears all files and directories in ...
rake tmp:clear # Clear session, cache, and socket fil...
rake tmp:create # Creates tmp directories for sessions...
rake tmp:pids:clear # Clears all files in tmp/pids
rake tmp:sessions:clear # Clears all files in tmp/sessions
rake tmp:sockets:clear # Clears all files in tmp/sockets
rake db:charset # Retrieves the charset for the curren...
rake db:collation # Retrieves the collation for the curr...
rake db:create # Create the database defined in confi...
rake db:create:all # Create all the local databases defin...
rake db:drop # Drops the database for the current R...
rake db:drop:all # Drops all the local databases define...
rake db:fixtures:identify # Search for a fixture given a LABEL o...
rake db:fixtures:load # Load fixtures into the current envir...
rake db:migrate # Migrate the database through scripts...
rake db:migrate:down # Runs the "down" for a given migratio...
rake db:migrate:redo # Rollbacks the database one migration...
rake db:migrate:reset # Resets your database using your migr...
rake db:migrate:up # Runs the "up" for a given migration ...
rake db:reset # Drops and recreates the database fro...
rake db:rollback # Rolls the schema back to the previou...
rake db:schema:dump # Create a db/schema.rb file that can ...
rake db:schema:load # Load a schema.rb file into the database
rake db:sessions:clear # Clear the sessions table
rake db:sessions:create # Creates a sessions migration for use...
rake db:structure:dump # Dump the database structure to a SQL...
rake db:test:clone # Recreate the test database from the ...
rake db:test:clone_structure # Recreate the test databases from the...
rake db:test:prepare # Prepare the test database and load t...
rake db:test:purge # Empty the test database
rake db:version # Retrieves the current schema version...
rake doc:app # Build the app HTML Files
rake doc:clobber_app # Remove rdoc products
rake doc:clobber_plugins # Remove plugin documentation
rake doc:clobber_rails # Remove rdoc products
rake doc:plugins # Generate documentation for all insta...
rake doc:rails # Build the rails HTML Files
rake doc:reapp # Force a rebuild of the RDOC files
rake doc:rerails # Force a rebuild of the RDOC files
rake gems # List the gems that this rails applic...
rake gems:build # Build any native extensions for unpa...
rake gems:install # Installs all required gems for this ...
rake gems:unpack # Unpacks the specified gem into vendo...
rake gems:unpack:dependencies # Unpacks the specified gems and its d...
rake log:clear # Truncates all *.log files in log/ to...
rake notes # Enumerate all annotations
rake notes:fixme # Enumerate all FIXME annotations
rake notes:optimize # Enumerate all OPTIMIZE annotations
rake notes:todo # Enumerate all TODO annotations
rake rails:freeze:edge # Lock to latest Edge Rails, for a spe...
rake rails:freeze:gems # Lock this application to the current...
rake rails:unfreeze # Unlock this application from freeze ...
rake rails:update # Update both configs, scripts and pub...
rake rails:update:configs # Update config/boot.rb from your curr...
rake rails:update:javascripts # Update your javascripts from your cu...
rake rails:update:scripts # Add new scripts to the application s...
rake routes # Print out all defined routes in matc...
rake secret # Generate a crytographically secure s...
rake stats # Report code statistics (KLOCs, etc) ...
rake test # Run all unit, functional and integra...
rake test:functionals # Run tests for functionalsdb:test:pre...
rake test:integration # Run tests for integrationdb:test:pre...
rake test:plugins # Run tests for pluginsenvironment / R...
rake test:recent # Run tests for recentdb:test:prepare ...
rake test:uncommitted # Run tests for uncommitteddb:test:pre...
rake test:units # Run tests for unitsdb:test:prepare /...
rake time:zones:all # Displays names of all time zones rec...
rake time:zones:local # Displays names of time zones recogni...
rake time:zones:us # Displays names of US time zones reco...
rake tmp:cache:clear # Clears all files and directories in ...
rake tmp:clear # Clear session, cache, and socket fil...
rake tmp:create # Creates tmp directories for sessions...
rake tmp:pids:clear # Clears all files in tmp/pids
rake tmp:sessions:clear # Clears all files in tmp/sessions
rake tmp:sockets:clear # Clears all files in tmp/sockets