diff options
Diffstat (limited to 'railties/guides/source/debugging_rails_applications.textile')
| -rw-r--r-- | railties/guides/source/debugging_rails_applications.textile | 35 |
1 files changed, 12 insertions, 23 deletions
diff --git a/railties/guides/source/debugging_rails_applications.textile b/railties/guides/source/debugging_rails_applications.textile index 6f028805d6..57c7786636 100644 --- a/railties/guides/source/debugging_rails_applications.textile +++ b/railties/guides/source/debugging_rails_applications.textile @@ -127,7 +127,7 @@ When something is logged it's printed into the corresponding log if the log leve The available log levels are: +:debug+, +:info+, +:warn+, +:error+, and +:fatal+, corresponding to the log level numbers from 0 up to 4 respectively. To change the default log level, use <ruby> -config.log_level = Logger::WARN # In any environment initializer, or +config.log_level = :warn # In any environment initializer, or Rails.logger.level = 0 # at any time </ruby> @@ -465,7 +465,7 @@ Now you should know where you are in the running trace and be able to print the Use +step+ (abbreviated +s+) to continue running your program until the next logical stopping point and return control to ruby-debug. -TIP: You can also use +step+ _n_+ and +step- _n_+ to move forward or backward _n_ steps respectively. +TIP: You can also use <tt>step<plus> n</tt> and <tt>step- n</tt> to move forward or backward +n+ steps respectively. You may also use +next+ which is similar to step, but function or method calls that appear within the line of code are executed without stopping. As with step, you may use plus sign to move _n_ steps. @@ -480,11 +480,7 @@ class Author < ActiveRecord::Base def find_recent_comments(limit = 10) debugger - @recent_comments ||= comments.find( - :all, - :conditions => ["created_at > ?", 1.week.ago], - :limit => limit - ) + @recent_comments ||= comments.where("created_at > ?", 1.week.ago).limit(limit) end end </ruby> @@ -493,7 +489,7 @@ TIP: You can use ruby-debug while using +rails console+. Just remember to +requi <shell> $ rails console -Loading development environment (Rails 2.1.0) +Loading development environment (Rails 3.1.0) >> require "ruby-debug" => [] >> author = Author.first @@ -507,15 +503,15 @@ With the code stopped, take a look around: <shell> (rdb:1) list -[6, 15] in /PathTo/project/app/models/author.rb +[2, 9] in /PathTo/project/app/models/author.rb + 2 has_one :editorial + 3 has_many :comments + 4 + 5 def find_recent_comments(limit = 10) 6 debugger - 7 @recent_comments ||= comments.find( - 8 :all, - 9 :conditions => ["created_at > ?", 1.week.ago], - 10 :limit => limit -=> 11 ) - 12 end - 13 end +=> 7 @recent_comments ||= comments.where("created_at > ?", 1.week.ago).limit(limit) + 8 end + 9 end </shell> You are at the end of the line, but... was this line executed? You can inspect the instance variables. @@ -716,10 +712,3 @@ h3. References * "ruby-debug cheat sheet":http://cheat.errtheblog.com/s/rdebug/ * "Ruby on Rails Wiki: How to Configure Logging":http://wiki.rubyonrails.org/rails/pages/HowtoConfigureLogging * "Bleak House Documentation":http://blog.evanweaver.com/files/doc/fauna/bleak_house/files/README.html - -h3. Changelog - -* April 4, 2010: Fixed document to validate XHTML 1.0 Strict. "Jaime Iniesta":http://jaimeiniesta.com -* November 3, 2008: Accepted for publication. Added RJS, memory leaks and plugins chapters by "Emilio Tagua":credits.html#miloops -* October 19, 2008: Copy editing pass by "Mike Gunderloy":credits.html#mgunderloy -* September 16, 2008: initial version by "Emilio Tagua":credits.html#miloops |