Sha256: ba33071773ed4dea02b95703a6ed5595274dee16e796853334797140cf598787
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Versions: 31
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Contents
# frozen-string-literal: true
#
class Roda
module RodaPlugins
# The capture_erb plugin allows you to capture the content of a block
# in an ERB template, and return it as a value, instead of
# injecting the template block into the template output.
#
# <% value = capture_erb do %>
# Some content here.
# <% end %>
#
# +capture_erb+ can be used inside other methods that are called
# inside templates. It can be combined with the inject_erb plugin
# to wrap template blocks with arbitrary output and then inject the
# wrapped output into the template.
module CaptureERB
def self.load_dependencies(app)
app.plugin :render
end
module InstanceMethods
# Temporarily replace the ERB output buffer
# with an empty string, and then yield to the block.
# Return the value of the block, converted to a string.
# Restore the previous ERB output buffer before returning.
def capture_erb
outvar = render_opts[:template_opts][:outvar]
buf_was = instance_variable_get(outvar)
instance_variable_set(outvar, String.new)
yield.to_s
ensure
instance_variable_set(outvar, buf_was) if outvar && buf_was
end
end
end
register_plugin(:capture_erb, CaptureERB)
end
end
Version data entries
31 entries across 31 versions & 1 rubygems