1 files changed, 46 insertions, 0 deletions
diff --git a/app/models/export/base.rb b/app/models/export/base.rb
index 844c66d82..350edd215 100644
--- a/app/models/export/base.rb
+++ b/app/models/export/base.rb
@@ -1,6 +1,8 @@
 class Export::Base < ActiveRecord::Base
   self.table_name = "exports"
 
+  validates :type, presence: true
+
   def self.messages_class_name
     "Export::Message"
   end
@@ -9,12 +11,56 @@ class Export::Base < ActiveRecord::Base
     "Export::Resource"
   end
 
+  def self.human_name
+    self.name.demodulize.humanize
+  end
+
+  if Rails.env.development?
+    def self.force_load_descendants
+      path = Rails.root.join 'app/models/export'
+      Dir.chdir path do
+        Dir['**/*.rb'].each do |src|
+          next if src =~ /^base/
+          klass_name = "Export::#{src[0..-4].classify}"
+          Rails.logger.info "Loading #{klass_name}"
+          begin
+            klass_name.constantize
+          rescue => e
+            Rails.logger.info "Failed: #{e.message}"
+            nil
+          end
+        end
+      end
+    end
+  end
+
+  def self.option name, opts
+    store_accessor :options, name
+    if !!opts[:required]
+      validates name, presence: true
+    end
+    @options ||= {}
+    @options[name] = opts
+  end
+
+  def self.options
+    @options
+  end
+
   include IevInterfaces::Task
 
   def self.model_name
     ActiveModel::Name.new Export::Base, Export::Base, "Export"
   end
 
+  def self.user_visible_descendants
+    descendants.select &:user_visible?
+  end
+
+  def self.user_visible?
+    true
+  end
+
   private
 
   def initialize_fields