Api: show - activescaffold/active_scaffold GitHub Wiki
Set this property so link is included in a group of links.
The set of columns used in the Show view. The columns themselves are not editable here – only their presence in the Show view.
Active scaffold supports html, js, json, yaml, and xml formats by default. If you need to add another mime type for the show action you can do it here. The format is then added to the default formats.
Examples:
config.show.formats << :pdf
# or
config.show.formats = [:pdf]The heading used for the Show view. Normally this heading is based on the core’s label.
The action link used to tie the Show view to the List table. See API: Action Link for the options on this setting.
Examples:
# set link label
config.show.link.label = "show user"
# set link title
config.show.link.html_options = { :title => "show user details..." }
# render an image as link label
config.show.link.label = helpers.image_tag( "show_user_24x32.png",
:title => "show user deatils",
:alt => "show user",
:size => "24x32").html_safeNeed to modify the show command, for example to allow a file download
class FramesController < ApplicationController
active_scaffold :frames do |config|
config.show.columns << :attachment_type
end
def do_show
@record = find_if_allowed(params[:id], :read)
end
def show_respond_to_html
if params[:download]
#storing the attachment in the database in a column bdata, and binary data is base64 encoded (legacy schema).
#send_file would be used if the file existed in the OS file storage system.
send_data(Base64.decode64(@record.bdata),
:filename => @record.filename,
:disposition => "attachment",
:type => @record.mime_type)
else
render :action => 'show'
end
end
end
#using the "attachment_type" column to hold the download link
module FramesHelper
def frame_attachment_type_column(record)
record.attachment_type ? link_to(record.filename, frame_path(record, :download => true)) : nil
end
end