module ActiveScaffold::Bridges::FileColumn::FileColumnHelpers

Public Class Methods

file_column_fields(klass) click to toggle source
# File lib/active_scaffold/bridges/file_column/file_column_helpers.rb, line 6
def file_column_fields(klass)
  klass.instance_methods.select { |m| m.to_s =~ /_just_uploaded\?$/ }.collect { |m| m[0..-16].to_sym }
end
generate_delete_helpers(klass) click to toggle source
# File lib/active_scaffold/bridges/file_column/file_column_helpers.rb, line 10
          def generate_delete_helpers(klass)
            file_column_fields(klass).each do |field|
              klass.send :class_eval, <<-CODE, __FILE__, __LINE__ + 1 unless klass.method_defined?(:"#{field}_with_delete=")
                attr_reader :delete_#{field}

                def delete_#{field}=(value)
                  value = (value=="true") if String===value
                  return unless value

                  # passing nil to the file column causes the file to be deleted.  Don't delete if we just uploaded a file!
                  self.#{field} = nil unless self.#{field}_just_uploaded?
                end
              CODE
            end
          end
klass_has_file_column_fields?(klass) click to toggle source
# File lib/active_scaffold/bridges/file_column/file_column_helpers.rb, line 26
def klass_has_file_column_fields?(klass)
  true unless file_column_fields(klass).empty?
end

Public Instance Methods

field_has_image_version?(field, version = 'thumb') click to toggle source
# File lib/active_scaffold/bridges/file_column/file_column_helpers.rb, line 39
def field_has_image_version?(field, version = 'thumb')
  options = options_for_file_column_field(field)
  versions = options[:magick][:versions]
  raise unless versions.stringify_keys[version]
  true
rescue StandardError
  false
end
file_column_fields() click to toggle source
# File lib/active_scaffold/bridges/file_column/file_column_helpers.rb, line 31
def file_column_fields
  @file_column_fields ||= FileColumnHelpers.file_column_fields(self)
end
generate_delete_helpers() click to toggle source
# File lib/active_scaffold/bridges/file_column/file_column_helpers.rb, line 48
def generate_delete_helpers
  FileColumnHelpers.generate_delete_helpers(self)
end
options_for_file_column_field(field) click to toggle source
# File lib/active_scaffold/bridges/file_column/file_column_helpers.rb, line 35
def options_for_file_column_field(field)
  allocate.send("#{field}_options")
end