Initial release of Discourse

lib/export/export.rb

@@ -0,0 +1,35 @@
+module Export
+
+  class UnsupportedExportSource   < RuntimeError; end
+  class FormatInvalidError        < RuntimeError; end
+  class FilenameMissingError      < RuntimeError; end
+  class ExportInProgressError     < RuntimeError; end
+
+  def self.current_schema_version
+    ActiveRecord::Migrator.current_version.to_s
+  end
+
+  def self.models_included_in_export
+    @models_included_in_export ||= begin
+      Rails.application.eager_load! # So that all models get loaded now
+      ActiveRecord::Base.descendants
+    end
+  end
+
+  def self.export_running_key
+    'exporter_is_running'
+  end
+
+  def self.is_export_running?
+    $redis.get(export_running_key) == '1'
+  end
+
+  def self.set_export_started
+    $redis.set export_running_key, '1'
+  end
+
+  def self.set_export_is_not_running
+    $redis.del export_running_key
+  end
+
+end