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Contents
# frozen_string_literal: true
module Decidim
module Admin
# This class contains helpers needed to obtain information about
# image dimensions from the processors defined in the specific image's Uploader class
module UploaderImageDimensionsHelper
# Find the dimensions info of a model's image field and get the first value for dimensions ([w, h])
#
# model - The model to which the image belongs (An instance of `ActiveRecord`)
# image_name - The attribute name for the image (either a `symbol` or a `string`)
#
# Returns an integer array with [width, height]
def image_dimensions(model, image_name)
uploader = model.attached_uploader(image_name) || model.send(image_name)
versions = uploader.dimensions_info
[:small, :medium, :default].map { |v| versions.dig(v, :dimensions) }.compact.first
end
# Find the first value for the processed image width
def image_width(model, image_name)
image_dimensions(model, image_name)[0]
end
# Find the first value for the processed image height
def image_height(model, image_name)
image_dimensions(model, image_name)[1]
end
end
end
end
Version data entries
44 entries across 44 versions & 1 rubygems