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Contents
module Spotlight
###
# Include Spotlight::ImageDerivatives in a class or module to get
# the derivative configurations in #spotlight_image_derivatives.
# A new derivative could theoretically be added by putting the
# following in an initializer.
# Spotlight::ImageDerivatives.spotlight_image_derivatives << {
# version: :my_version,
# field: :my_field,
# lambda: lambda {|_|
# version :my_version do
# process :resize_to_fill => [30,30]
# end
# }
# }
#
# This will then create that new CarrierWave version in any class that extends this module
# and calls the apply_spotlight_image_derivative_versions class method described below.
module ImageDerivatives
mattr_accessor :spotlight_image_derivatives
# Extend Spotlight::ImageDerivatives in a CarrierWave uploader
# then you can call this as a class method and all of the
# configured versions will be available
def apply_spotlight_image_derivative_versions
spotlight_image_derivatives.each do |version_config|
if (c = version_config[:lambda]).present?
class_eval(&c)
end
end
end
# Set default derivative configurations
self.spotlight_image_derivatives ||= [
{
field: Spotlight::Engine.config.try(:full_image_field)
},
{
version: :thumb,
field: Spotlight::Engine.config.try(:thumbnail_field),
lambda: lambda do |_|
version :thumb do
process resize_to_fit: [400, 400]
end
end
},
{
version: :square,
field: Spotlight::Engine.config.try(:square_image_field),
lambda: lambda do |_|
version :square do
process resize_to_fill: [100, 100]
end
end
}
].reject { |v| v[:field].blank? }
end
end
Version data entries
26 entries across 26 versions & 1 rubygems