method
block_called_from_erb?
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v2.3.8 -
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Class: ActionView::Helpers::TagHelper
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ronald -
March 25, 2009 - (>= v2.2.1)
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usage helper with block
helper example
def my_helper(&block) inner = capture(&block) out = "<somehtml>#{inner}</somehtml>" block_called_from_erb?(block) ? concat(out) : out end
view example
<% my_helper do %> sometext <% end %>
output
<somehtml>sometext</somehtml>