Module: ActionView::Helpers::DebugHelper
- Defined in:
- lib/action_view/helpers/debug_helper.rb
Overview
Provides a set of methods for making it easier to debug Rails objects.
Instance Method Summary collapse
-
#debug(object) ⇒ Object
Returns a <pre>-tag that has
object
dumped by YAML.
Instance Method Details
#debug(object) ⇒ Object
Returns a <pre>-tag that has object
dumped by YAML. This creates a very readable way to inspect an object.
Example
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>
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# File 'lib/action_view/helpers/debug_helper.rb', line 20 def debug(object) begin Marshal::dump(object) "<pre class='debug_dump'>#{h(object.to_yaml).gsub(" ", " ")}</pre>" rescue Exception => e # errors from Marshal or YAML # Object couldn't be dumped, perhaps because of singleton methods -- this is the fallback "<code class='debug_dump'>#{h(object.inspect)}</code>" end end |