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* Additionally, instead of doing concat("</form>".html_safe), you can do
safe_concat("</form>"), which will skip both the flag set, and the flag
check.
* For the first pass, I converted virtually all #html_safe!s to #html_safe,
and the tests pass. A further optimization would be to try to use
#safe_concat as much as possible, reducing the performance impact if
we know up front that a String is safe.
38 lines
1.3 KiB
Ruby
38 lines
1.3 KiB
Ruby
module ActionView
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module Helpers
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# Provides a set of methods for making it easier to debug Rails objects.
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module DebugHelper
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# Returns a YAML representation of +object+ wrapped with <pre> and </pre>.
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# If the object cannot be converted to YAML using +to_yaml+, +inspect+ will be called instead.
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# Useful for inspecting an object at the time of rendering.
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#
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# ==== Example
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#
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# @user = User.new({ :username => 'testing', :password => 'xyz', :age => 42}) %>
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# debug(@user)
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# # =>
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# <pre class='debug_dump'>--- !ruby/object:User
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# attributes:
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# updated_at:
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# username: testing
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#
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# age: 42
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# password: xyz
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# created_at:
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# attributes_cache: {}
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#
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# new_record: true
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# </pre>
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def debug(object)
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begin
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Marshal::dump(object)
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"<pre class='debug_dump'>#{h(object.to_yaml).gsub(" ", " ")}</pre>".html_safe
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rescue Exception => e # errors from Marshal or YAML
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# Object couldn't be dumped, perhaps because of singleton methods -- this is the fallback
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"<code class='debug_dump'>#{h(object.inspect)}</code>".html_safe
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end
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end
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end
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end
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end
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