--- /dev/null
+-- @tag: file_storage_dunning_documents
+-- @description: Dateien f. Mahnungen von gemahnter Rechnung zum Mahnlauf verschieben
+-- @depends: file_storage_dunning_invoice
+
+-- for the original invoice, assume that the dunning_id is the one from a dunning row where the trans_id is
+-- the old files object_id (the orig. invoice) and the itime of both tables are (almost) equal
+WITH table_files AS
+ (SELECT dunning.dunning_id, files.id FROM files LEFT JOIN dunning ON (dunning.trans_id = files.object_id)
+ WHERE object_type ILIKE 'dunning_orig_invoice' AND file_type LIKE 'document' AND source LIKE 'created'
+ AND ABS(EXTRACT(EPOCH FROM (dunning.itime - files.itime))) < 0.1)
+ UPDATE files SET object_type = 'dunning', object_id = (SELECT dunning_id FROM table_files WHERE table_files.id = files.id)
+ WHERE EXISTS (SELECT id FROM table_files WHERE table_files.id = files.id);
+
+-- the dunning_id for the following types can be found in the filename
+UPDATE files SET object_type = 'dunning', object_id = substring(file_name FROM '(\d+).pdf')::INT
+ WHERE (object_type LIKE 'dunning1' OR object_type LIKE 'dunning2' OR object_type LIKE 'dunning3' OR object_type LIKE 'dunning_invoice')
+ AND file_type LIKE 'document' AND source LIKE 'created';