[2] | 1 | """ |
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| 2 | Migration script to add slug column for stored workflow. |
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| 3 | """ |
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| 4 | |
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| 5 | from sqlalchemy import * |
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| 6 | from migrate import * |
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| 7 | from migrate.changeset import * |
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| 8 | |
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| 9 | import logging |
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| 10 | log = logging.getLogger( __name__ ) |
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| 11 | |
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| 12 | metadata = MetaData( migrate_engine ) |
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| 13 | |
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| 14 | def upgrade(): |
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| 15 | |
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| 16 | print __doc__ |
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| 17 | metadata.reflect() |
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| 18 | |
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| 19 | StoredWorkflow_table = Table( "stored_workflow", metadata, autoload=True ) |
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| 20 | |
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| 21 | # Create slug column. |
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| 22 | c = Column( "slug", TEXT, index=True ) |
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| 23 | c.create( StoredWorkflow_table ) |
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| 24 | assert c is StoredWorkflow_table.c.slug |
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| 25 | |
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| 26 | # Create slug index. |
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| 27 | try: |
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| 28 | i = Index( "ix_stored_workflow_slug", StoredWorkflow_table.c.slug ) |
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| 29 | i.create() |
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| 30 | except: |
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| 31 | # Mysql doesn't have a named index, but alter should work |
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| 32 | StoredWorkflow_table.c.slug.alter( unique=False ) |
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| 33 | |
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| 34 | def downgrade(): |
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| 35 | metadata.reflect() |
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| 36 | |
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| 37 | StoredWorkflow_table = Table( "stored_workflow", metadata, autoload=True ) |
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| 38 | StoredWorkflow_table.c.slug.drop() |
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