Draft: load/migrate old string data
While upgrade instance from python2 to python3, i found when read old BigFile object such as Data Stream, it raise error below
Module erp5.component.document.erp5_version.BigFile, line 105, in getData
return btree.read(0, len(btree))
Module erp5.component.module.erp5_version.BTreeData, line 182, in read
return b''.join(self.iterate(offset, size))
TypeError: sequence item 0: expected a bytes-like object, str foundIt's because the old object created when in python2, the data inside BTree is still string
as @jerome suggest, let's do on-read migration to migrate string to bytes
Related MR: erp5-bin!12
TODO:
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on-read migration to migrate data