gab-social/app/models/concerns/group_cover_image.rb

34 lines
1.1 KiB
Ruby

# frozen_string_literal: true
module GroupCoverImage
extend ActiveSupport::Concern
LIMIT = 5.megabytes
IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif', 'image/webp'].freeze
class_methods do
def cover_image_styles(file)
styles = { original: { geometry: '1200x475#', file_geometry_parser: FastGeometryParser } }
styles[:static] = { geometry: '1200x475#', format: 'png', convert_options: '-coalesce', file_geometry_parser: FastGeometryParser } if file.content_type == 'image/gif'
styles
end
private :cover_image_styles
end
included do
has_attached_file :cover_image, styles: ->(f) { cover_image_styles(f) }, convert_options: { all: '-strip' }, processors: [:lazy_thumbnail]
validates_attachment_content_type :cover_image, content_type: IMAGE_MIME_TYPES
validates_attachment_size :cover_image, less_than: LIMIT
remotable_attachment :cover_image, LIMIT
end
def cover_image_original_url
cover_image.url(:original)
end
def cover_image_static_url
cover_image_content_type == 'image/gif' ? cover_image.url(:static) : cover_image_original_url
end
end