--- /dev/null
+-- @tag: file_storage_type_letter
+-- @description: Letter als valid_type für Filemanagement
+-- @depends: shopimages
+
+ALTER TABLE files
+ DROP CONSTRAINT valid_type;
+ALTER TABLE files
+ ADD CONSTRAINT valid_type CHECK (
+ (object_type = 'credit_note' ) OR (object_type = 'invoice' ) OR (object_type = 'sales_order' )
+ OR (object_type = 'sales_quotation' ) OR (object_type = 'sales_delivery_order' ) OR (object_type = 'request_quotation' )
+ OR (object_type = 'purchase_order' ) OR (object_type = 'purchase_delivery_order' ) OR (object_type = 'purchase_invoice' )
+ OR (object_type = 'vendor' ) OR (object_type = 'customer' ) OR (object_type = 'part' )
+ OR (object_type = 'gl_transaction' ) OR (object_type = 'dunning' ) OR (object_type = 'dunning1' )
+ OR (object_type = 'dunning2' ) OR (object_type = 'dunning3' ) OR (object_type = 'draft' )
+ OR (object_type = 'statement' ) OR (object_type = 'shop_image' ) OR (object_type = 'letter' )
+ );