Let's say that foo
is created, changed and saved many times when a program runs.
Usually, foo.bar == "sensible value"
, but occassionally, foo.bar == "crazy value"
.
Is there some way I can run rails server --debugger
, and have it only drop into the开发者_StackOverflow社区 debugging console at the point where foo.bar == "crazy value"
?
Have you tried
if foo.bar == "crazy value"
require 'ruby-debug'; debugger
end
This should place a breakpoint that triggers when you run bundle exec rails server
normally, and only when foo.bar
has the value you (don't) want.
If you are using bundler, and Ruby 1.9 make sure you have
gem 'ruby-debug19', :require => 'ruby-debug'
in your Gemfile (in the development and test group).
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