[2] | 1 | """ |
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| 2 | Migration script to add support for storing visualizations. |
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| 3 | 1) Creates Visualization and VisualizationRevision tables |
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| 4 | """ |
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| 5 | |
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| 6 | from sqlalchemy 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 datetime |
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| 11 | now = datetime.datetime.utcnow |
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| 12 | |
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| 13 | import logging |
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| 14 | log = logging.getLogger( __name__ ) |
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| 15 | |
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| 16 | metadata = MetaData( migrate_engine ) |
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| 17 | |
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| 18 | Visualization_table = Table( "visualization", metadata, |
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| 19 | Column( "id", Integer, primary_key=True ), |
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| 20 | Column( "create_time", DateTime, default=now ), |
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| 21 | Column( "update_time", DateTime, default=now, onupdate=now ), |
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| 22 | Column( "user_id", Integer, ForeignKey( "galaxy_user.id" ), index=True, nullable=False ), |
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| 23 | Column( "latest_revision_id", Integer, |
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| 24 | ForeignKey( "visualization_revision.id", use_alter=True, name='visualization_latest_revision_id_fk' ), index=True ), |
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| 25 | Column( "title", TEXT ), |
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| 26 | Column( "type", TEXT ) |
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| 27 | ) |
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| 28 | |
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| 29 | VisualizationRevision_table = Table( "visualization_revision", metadata, |
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| 30 | Column( "id", Integer, primary_key=True ), |
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| 31 | Column( "create_time", DateTime, default=now ), |
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| 32 | Column( "update_time", DateTime, default=now, onupdate=now ), |
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| 33 | Column( "visualization_id", Integer, ForeignKey( "visualization.id" ), index=True, nullable=False ), |
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| 34 | Column( "title", TEXT ), |
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| 35 | Column( "config", TEXT ) |
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| 36 | ) |
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| 37 | |
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| 38 | def upgrade(): |
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| 39 | print __doc__ |
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| 40 | metadata.reflect() |
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| 41 | try: |
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| 42 | Visualization_table.create() |
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| 43 | except: |
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| 44 | log.debug( "Could not create page table" ) |
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| 45 | try: |
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| 46 | VisualizationRevision_table.create() |
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| 47 | except: |
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| 48 | log.debug( "Could not create page_revision table" ) |
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| 49 | |
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| 50 | |
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| 51 | def downgrade(): |
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| 52 | metadata.reflect() |
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| 53 | Visualization_table.drop() |
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| 54 | VisualizationRevision_table.drop() |
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| 55 | |
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