Script to populate hero images from scoped resources banner images

lib/tasks/upgrade/migrate_hero_image_from_banner_image.rake

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+# frozen_string_literal: true
+
+namespace :decidim do
+ namespace :upgrade do
+ namespace :content_blocks do
+ desc "Use the banner image of the scoped resource on the hero content block"
+ task :migrate_hero_image_from_banner_image do
+ logger = Logger.new($stdout)
+ content_blocks = Decidim::ContentBlock.where(manifest_name: "hero", scope_name: %w(participatory_process_homepage assembly_homepage))
+ content_blocks.each do |content_block|
+ content_block_attachment = content_block.attachments.find_by(name: "background_image")
+ resource_class = case content_block.scope_name
+ when "participatory_process_homepage"
+ Decidim::ParticipatoryProcess
+ when "assembly_homepage"
+ Decidim::Assembly
+ else
+ raise NotImplementedError
+ end
+ resource = resource_class.find(content_block.scoped_resource_id)
+
+ if content_block_attachment.attached?
+ logger.info("[SKIP] Content block #{content_block.id} from scoped resource #{resource_class} #{resource.id} already has a background image attachment")
+ next
+ end
+
+ unless resource.banner_image.attached?
+ logger.info("[SKIP] Content block #{content_block.id} scoped resource #{resource_class} #{resource.id} does not have a banner image")
+ next
+ end
+
+ logger.info("[INFO] Attaching image to content block #{content_block.id} from the banner image of the scoped resource #{resource_class} #{resource.id}")
+ content_block_attachment.file.attach(resource.banner_image.blob)
+ end
+ end
+ end
+ end
+end