Sebastian Niklasch 1a45936595 prevent AttributeError ...

If os.path.isfile(sqlite_cache_file) is False, the Attribute cache_connection was not assigned and so an Attribute Error occured in the following lines.

2019-10-26 15:59:39 +10:00

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__init__.py

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CMakeLists.txt

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connector.py

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data_model.py

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info_model.py

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plugin.py

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QtSqlDB.py

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sql_dictionary.py

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TODO.md

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