[2] | 1 | """ |
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| 2 | Drop and readd workflow invocation tables, allowing null jobs |
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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 | logging.basicConfig( level=logging.DEBUG ) |
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| 12 | log = logging.getLogger( __name__ ) |
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| 13 | |
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| 14 | import datetime |
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| 15 | now = datetime.datetime.utcnow |
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| 16 | |
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| 17 | def upgrade(): |
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| 18 | print __doc__ |
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| 19 | |
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| 20 | metadata = MetaData( migrate_engine ) |
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| 21 | db_session = scoped_session( sessionmaker( bind=migrate_engine, autoflush=False, autocommit=True ) ) |
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| 22 | metadata.reflect() |
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| 23 | |
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| 24 | # 1) Drop |
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| 25 | |
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| 26 | for table_name in [ "workflow_invocation_step", "workflow_invocation" ]: |
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| 27 | try: |
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| 28 | t = Table( table_name, metadata, autoload=True ).drop() |
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| 29 | except: |
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| 30 | log.exception( "Failed to drop table '%s', ignoring (might result in wrong schema)" % table_name ) |
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| 31 | |
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| 32 | # 2) Readd |
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| 33 | |
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| 34 | metadata = MetaData( migrate_engine ) |
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| 35 | db_session = scoped_session( sessionmaker( bind=migrate_engine, autoflush=False, autocommit=True ) ) |
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| 36 | metadata.reflect() |
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| 37 | |
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| 38 | WorkflowInvocation_table = Table( "workflow_invocation", metadata, |
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| 39 | Column( "id", Integer, primary_key=True ), |
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| 40 | Column( "create_time", DateTime, default=now ), |
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| 41 | Column( "update_time", DateTime, default=now, onupdate=now ), |
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| 42 | Column( "workflow_id", Integer, ForeignKey( "workflow.id" ), index=True, nullable=False ), |
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| 43 | ) |
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| 44 | |
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| 45 | WorkflowInvocationStep_table = Table( "workflow_invocation_step", metadata, |
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| 46 | Column( "id", Integer, primary_key=True ), |
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| 47 | Column( "create_time", DateTime, default=now ), |
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| 48 | Column( "update_time", DateTime, default=now, onupdate=now ), |
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| 49 | Column( "workflow_invocation_id", Integer, ForeignKey( "workflow_invocation.id" ), index=True, nullable=False ), |
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| 50 | Column( "workflow_step_id", Integer, ForeignKey( "workflow_step.id" ), index=True, nullable=False ), |
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| 51 | Column( "job_id", Integer, ForeignKey( "job.id" ), index=True, nullable=True ), |
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| 52 | ) |
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| 53 | |
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| 54 | for table in [ WorkflowInvocation_table, WorkflowInvocationStep_table ]: |
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| 55 | try: |
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| 56 | table.create() |
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| 57 | except: |
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| 58 | log.exception( "Failed to create table '%s', ignoring (might result in wrong schema)" % table.name ) |
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| 59 | |
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| 60 | def downgrade(): |
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| 61 | # No downgrade |
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| 62 | pass |
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