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Diffstat (limited to 'guides/source/configuring.md')
| -rw-r--r-- | guides/source/configuring.md | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/guides/source/configuring.md b/guides/source/configuring.md index 622f79a50f..4ebd634cd6 100644 --- a/guides/source/configuring.md +++ b/guides/source/configuring.md @@ -1,4 +1,4 @@ -**DO NOT READ THIS FILE IN GITHUB, GUIDES ARE PUBLISHED IN http://guides.rubyonrails.org.** +**DO NOT READ THIS FILE ON GITHUB, GUIDES ARE PUBLISHED ON http://guides.rubyonrails.org.** Configuring Rails Applications ============================== @@ -110,7 +110,9 @@ numbers. New applications filter out passwords by adding the following `config.f * `config.log_formatter` defines the formatter of the Rails logger. This option defaults to an instance of `ActiveSupport::Logger::SimpleFormatter` for all modes except production, where it defaults to `Logger::Formatter`. -* `config.log_level` defines the verbosity of the Rails logger. This option defaults to `:debug` for all environments. The available log levels are: :debug, :info, :warn, :error, :fatal, and :unknown. +* `config.log_level` defines the verbosity of the Rails logger. This option +defaults to `:debug` for all environments. The available log levels are: `:debug`, +`:info`, `:warn`, `:error`, `:fatal`, and `:unknown`. * `config.log_tags` accepts a list of methods that the `request` object responds to. This makes it easy to tag log lines with debug information like subdomain and request id - both very helpful in debugging multi-user production applications. @@ -286,7 +288,7 @@ All these configuration options are delegated to the `I18n` library. * `config.active_record.lock_optimistically` controls whether Active Record will use optimistic locking and is true by default. -* `config.active_record.cache_timestamp_format` controls the format of the timestamp value in the cache key. Default is `:number`. +* `config.active_record.cache_timestamp_format` controls the format of the timestamp value in the cache key. Default is `:nsec`. * `config.active_record.record_timestamps` is a boolean value which controls whether or not timestamping of `create` and `update` operations on a model occur. The default value is `true`. @@ -300,6 +302,8 @@ All these configuration options are delegated to the `I18n` library. `config/environments/production.rb` which is generated by Rails. The default value is true if this configuration is not set. +* `config.active_record.belongs_to_required_by_default` is a boolean value and controls whether `belongs_to` association is required by default. + The MySQL adapter adds one additional configuration option: * `ActiveRecord::ConnectionAdapters::MysqlAdapter.emulate_booleans` controls whether Active Record will consider all `tinyint(1)` columns in a MySQL database to be booleans and is true by default. @@ -692,7 +696,7 @@ development: pool: 5 ``` -Prepared Statements are enabled by default on PostgreSQL. You can be disable prepared statements by setting `prepared_statements` to `false`: +Prepared Statements are enabled by default on PostgreSQL. You can disable prepared statements by setting `prepared_statements` to `false`: ```yaml production: @@ -973,8 +977,6 @@ Below is a comprehensive list of all the initializers found in Rails in the orde * `load_environment_config` Loads the `config/environments` file for the current environment. -* `append_asset_paths` Finds asset paths for the application and all attached railties and keeps a track of the available directories in `config.static_asset_paths`. - * `prepend_helpers_path` Adds the directory `app/helpers` from the application, railties and engines to the lookup path for helpers for the application. * `load_config_initializers` Loads all Ruby files from `config/initializers` in the application, railties and engines. The files in this directory can be used to hold configuration settings that should be made after all of the frameworks are loaded. @@ -1049,3 +1051,23 @@ These configuration points are then available through the configuration object: Rails.configuration.x.super_debugger # => true Rails.configuration.x.super_debugger.not_set # => nil ``` + +Search Engines Indexing +----------------------- + +Sometimes, you may want to prevent some pages of your application to be visible +on search sites like Google, Bing, Yahoo or Duck Duck Go. The robots that index +these sites will first analyse the `http://your-site.com/robots.txt` file to +know which pages it is allowed to index. + +Rails creates this file for you inside the `/public` folder. By default, it allows +search engines to index all pages of your application. If you want to block +indexing on all pages of you application, use this: + +``` +User-agent: * +Disallow: / +``` + +To block just specific pages, it's necessary to use a more complex syntax. Learn +it on the [official documentation](http://www.robotstxt.org/robotstxt.html). |