[2] | 1 | """ |
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| 2 | Migration script to create table for exporting histories to archives. |
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| 3 | """ |
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| 4 | |
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| 5 | from sqlalchemy import * |
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| 6 | from sqlalchemy.orm import * |
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| 7 | from migrate import * |
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| 8 | from migrate.changeset import * |
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| 9 | |
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| 10 | import logging |
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| 11 | log = logging.getLogger( __name__ ) |
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| 12 | |
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| 13 | metadata = MetaData( migrate_engine ) |
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| 14 | db_session = scoped_session( sessionmaker( bind=migrate_engine, autoflush=False, autocommit=True ) ) |
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| 15 | |
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| 16 | # Table to add. |
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| 17 | |
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| 18 | JobExportHistoryArchive_table = Table( "job_export_history_archive", metadata, |
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| 19 | Column( "id", Integer, primary_key=True ), |
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| 20 | Column( "job_id", Integer, ForeignKey( "job.id" ), index=True ), |
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| 21 | Column( "history_id", Integer, ForeignKey( "history.id" ), index=True ), |
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| 22 | Column( "dataset_id", Integer, ForeignKey( "dataset.id" ), index=True ), |
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| 23 | Column( "compressed", Boolean, index=True, default=False ), |
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| 24 | Column( "history_attrs_filename", TEXT ), |
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| 25 | Column( "datasets_attrs_filename", TEXT ), |
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| 26 | Column( "jobs_attrs_filename", TEXT ) |
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| 27 | ) |
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| 28 | |
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| 29 | def upgrade(): |
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| 30 | print __doc__ |
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| 31 | metadata.reflect() |
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| 32 | |
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| 33 | # Create job_export_history_archive table. |
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| 34 | try: |
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| 35 | JobExportHistoryArchive_table.create() |
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| 36 | except Exception, e: |
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| 37 | print str(e) |
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| 38 | log.debug( "Creating job_export_history_archive table failed: %s" % str( e ) ) |
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| 39 | |
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| 40 | def downgrade(): |
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| 41 | metadata.reflect() |
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| 42 | |
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| 43 | # Drop job_export_history_archive table. |
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| 44 | try: |
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| 45 | JobExportHistoryArchive_table.drop() |
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| 46 | except Exception, e: |
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| 47 | print str(e) |
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| 48 | log.debug( "Dropping job_export_history_archive table failed: %s" % str( e ) ) |
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