openlp-core team mailing list archive

[Tomas Groth <1403812@xxxxxxxxxxxxxxxxxx>]

It seems that the DB has been changed in some way, so we'll ignore this
for now. If similar issues are reported later we'll look at it again.

** Changed in: openlp
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1403812

Title:
  Traceback when importing OpenLP2 sqlite DB

Status in OpenLP - Worship Presentation Software:
  Invalid

Bug description:
  Import the song db from
  http://support.openlp.org/scp/tickets.php?id=2606 using the OpenLP2
  song importer gives the traceback below with current trunk.

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/relationships.py", line 197, in _determine_joins
      consider_as_foreign_keys=consider_as_foreign_keys
    File "/usr/lib/python3/dist-packages/sqlalchemy/sql/util.py", line 396, in join_condition
      "between '%s' and '%s'.%s" % (a.description, b.description, hint))
  sqlalchemy.exc.NoForeignKeysError: Can't find any foreign key relationships between 'songs' and 'song_books'.

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/home/tgc/OpenLP/trunk/openlp/core/ui/wizard.py", line 223, in on_current_id_changed
      self.perform_wizard()
    File "/home/tgc/OpenLP/trunk/openlp/plugins/songs/forms/songimportform.py", line 354, in perform_wizard
      importer.do_import()
    File "/home/tgc/OpenLP/trunk/openlp/plugins/songs/lib/importers/openlp.py", line 161, in do_import
      source_songs = self.source_session.query(OldSong).all()
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/scoping.py", line 149, in do
      return getattr(self.registry(), name)(*args, **kwargs)
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/session.py", line 1107, in query
      return self._query_cls(entities, self, **kwargs)
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/query.py", line 115, in __init__
      self._set_entities(entities)
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/query.py", line 124, in _set_entities
      self._set_entity_selectables(self._entities)
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/query.py", line 157, in _set_entity_selectables
      ent.setup_entity(*d[entity])
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/query.py", line 2914, in setup_entity
      self._with_polymorphic = ext_info.with_polymorphic_mappers
    File "/usr/lib/python3/dist-packages/sqlalchemy/util/langhelpers.py", line 618, in __get__
      obj.__dict__[self.__name__] = result = self.fget(obj)
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/mapper.py", line 1464, in _with_polymorphic_mappers
      configure_mappers()
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/mapper.py", line 2169, in configure_mappers
      mapper._post_configure_properties()
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/mapper.py", line 1281, in _post_configure_properties
      prop.init()
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/interfaces.py", line 231, in init
      self.do_init()
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/properties.py", line 1030, in do_init
      self._setup_join_conditions()
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/properties.py", line 1104, in _setup_join_conditions
      can_be_synced_fn=self._columns_are_mapped
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/relationships.py", line 114, in __init__
      self._determine_joins()
    File "/usr/lib/python3/dist-packages/sqlalchemy/orm/relationships.py", line 218, in _determine_joins
      % self.prop)
  sqlalchemy.exc.NoForeignKeysError: Could not determine join condition between parent/child tables on relationship OldSong.book - there are no foreign keys linking these tables.  Ensure that referencing columns are associated with a ForeignKey or ForeignKeyConstraint, or specify a 'primaryjoin' expression.

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