Sha256: 86a3f9e10b154c53a6c5ffaabfd6ebddc645620d7e6c31bd44bae1081a244493
Contents?: true
Size: 1.83 KB
Versions: 6
Compression:
Stored size: 1.83 KB
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.
#
# If the output buffer object responds to +capture+ and is not
# an instance of String (e.g. when +erubi/capture_block+ is being
# used as the template engine), this will call +capture+ on the
# output buffer object, instead of setting the output buffer object
# temporarily to a new object.
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(&block)
outvar = render_opts[:template_opts][:outvar]
buf_was = instance_variable_get(outvar)
if buf_was.respond_to?(:capture) && !buf_was.instance_of?(String)
buf_was.capture(&block)
else
begin
instance_variable_set(outvar, String.new)
yield.to_s
ensure
instance_variable_set(outvar, buf_was) if outvar && buf_was
end
end
end
end
end
register_plugin(:capture_erb, CaptureERB)
end
end
Version data entries
6 entries across 6 versions & 1 rubygems