Module | ActionView::Helpers::DebugHelper |
In: |
vendor/rails/actionpack/lib/action_view/helpers/debug_helper.rb
|
Provides a set of methods for making it easier to locate problems.
Returns a <pre>-tag set with the object dumped by YAML. Very readable way to inspect an object.
my_hash = {'first' => 1, 'second' => 'two', 'third' => [1,2,3]} debug(my_hash) => <pre class='debug_dump'>--- first: 1 second: two third: - 1 - 2 - 3 </pre>
# File vendor/rails/actionpack/lib/action_view/helpers/debug_helper.rb, line 16 16: def debug(object) 17: begin 18: Marshal::dump(object) 19: "<pre class='debug_dump'>#{h(object.to_yaml).gsub(" ", " ")}</pre>" 20: rescue Exception => e # errors from Marshal or YAML 21: # Object couldn't be dumped, perhaps because of singleton methods -- this is the fallback 22: "<code class='debug_dump'>#{h(object.inspect)}</code>" 23: end 24: end