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| -rw-r--r-- | railties/guides/source/debugging_rails_applications.textile | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/railties/guides/source/debugging_rails_applications.textile b/railties/guides/source/debugging_rails_applications.textile index 045b8823ca..507b0d7ec9 100644 --- a/railties/guides/source/debugging_rails_applications.textile +++ b/railties/guides/source/debugging_rails_applications.textile @@ -328,6 +328,41 @@ If you repeat the +list+ command, this time using just +l+, the next ten lines o And so on until the end of the current file. When the end of file is reached, the +list+ command will start again from the beginning of the file and continue again up to the end, treating the file as a circular buffer. +On the other hand, to see the previous ten lines you should type +list-+ (or +l-+) + +<shell> +(rdb:7) l- +[1, 10] in /PathToProject/posts_controller.rb + 1 class PostsController < ApplicationController + 2 # GET /posts + 3 # GET /posts.xml + 4 def index + 5 debugger + 6 @posts = Post.all + 7 + 8 respond_to do |format| + 9 format.html # index.html.erb + 10 format.xml { render :xml => @posts } +</shell> + +This way you can move inside the file, being able to see the code above and over the line you added the +debugger+. +Finally, to see where you are in the code again you can type +list=+ + +<shell> +(rdb:7) list= +[1, 10] in /PathToProject/posts_controller.rb + 1 class PostsController < ApplicationController + 2 # GET /posts + 3 # GET /posts.xml + 4 def index + 5 debugger +=> 6 @posts = Post.all + 7 + 8 respond_to do |format| + 9 format.html # index.html.erb + 10 format.xml { render :xml => @posts } +</shell> + h4. The Context When you start debugging your application, you will be placed in different contexts as you go through the different parts of the stack. |