[2] | 1 | """ |
---|
| 2 | This migration script provides support for (a) ordering tags by recency and |
---|
| 3 | (b) tagging pages. This script deletes all existing tags. |
---|
| 4 | """ |
---|
| 5 | |
---|
| 6 | from sqlalchemy import * |
---|
| 7 | from sqlalchemy.orm import * |
---|
| 8 | from sqlalchemy.exc import * |
---|
| 9 | from migrate import * |
---|
| 10 | import migrate.changeset |
---|
| 11 | |
---|
| 12 | import datetime |
---|
| 13 | now = datetime.datetime.utcnow |
---|
| 14 | |
---|
| 15 | # Need our custom types, but don't import anything else from model |
---|
| 16 | from galaxy.model.custom_types import * |
---|
| 17 | |
---|
| 18 | import logging |
---|
| 19 | log = logging.getLogger( __name__ ) |
---|
| 20 | |
---|
| 21 | metadata = MetaData( migrate_engine ) |
---|
| 22 | |
---|
| 23 | def display_migration_details(): |
---|
| 24 | print "" |
---|
| 25 | print "This migration script provides support for (a) ordering tags by recency and" |
---|
| 26 | print "(b) tagging pages. This script deletes all existing tags." |
---|
| 27 | |
---|
| 28 | HistoryTagAssociation_table = Table( "history_tag_association", metadata, |
---|
| 29 | Column( "id", Integer, primary_key=True ), |
---|
| 30 | Column( "history_id", Integer, ForeignKey( "history.id" ), index=True ), |
---|
| 31 | Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ), |
---|
| 32 | Column( "user_tname", TrimmedString(255), index=True), |
---|
| 33 | Column( "value", TrimmedString(255), index=True), |
---|
| 34 | Column( "user_value", TrimmedString(255), index=True) ) |
---|
| 35 | |
---|
| 36 | DatasetTagAssociation_table = Table( "dataset_tag_association", metadata, |
---|
| 37 | Column( "id", Integer, primary_key=True ), |
---|
| 38 | Column( "dataset_id", Integer, ForeignKey( "dataset.id" ), index=True ), |
---|
| 39 | Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ), |
---|
| 40 | Column( "user_tname", TrimmedString(255), index=True), |
---|
| 41 | Column( "value", TrimmedString(255), index=True), |
---|
| 42 | Column( "user_value", TrimmedString(255), index=True) ) |
---|
| 43 | |
---|
| 44 | HistoryDatasetAssociationTagAssociation_table = Table( "history_dataset_association_tag_association", metadata, |
---|
| 45 | Column( "id", Integer, primary_key=True ), |
---|
| 46 | Column( "history_dataset_association_id", Integer, ForeignKey( "history_dataset_association.id" ), index=True ), |
---|
| 47 | Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ), |
---|
| 48 | Column( "user_tname", TrimmedString(255), index=True), |
---|
| 49 | Column( "value", TrimmedString(255), index=True), |
---|
| 50 | Column( "user_value", TrimmedString(255), index=True) ) |
---|
| 51 | |
---|
| 52 | PageTagAssociation_table = Table( "page_tag_association", metadata, |
---|
| 53 | Column( "id", Integer, primary_key=True ), |
---|
| 54 | Column( "page_id", Integer, ForeignKey( "page.id" ), index=True ), |
---|
| 55 | Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ), |
---|
| 56 | Column( "user_tname", TrimmedString(255), index=True), |
---|
| 57 | Column( "value", TrimmedString(255), index=True), |
---|
| 58 | Column( "user_value", TrimmedString(255), index=True) ) |
---|
| 59 | |
---|
| 60 | def upgrade(): |
---|
| 61 | display_migration_details() |
---|
| 62 | metadata.reflect() |
---|
| 63 | |
---|
| 64 | # |
---|
| 65 | # Recreate tables. |
---|
| 66 | # |
---|
| 67 | try: |
---|
| 68 | HistoryTagAssociation_table.drop() |
---|
| 69 | HistoryTagAssociation_table.create() |
---|
| 70 | except Exception, e: |
---|
| 71 | print "Recreating history_tag_association table failed: %s" % str( e ) |
---|
| 72 | log.debug( "Recreating history_tag_association table failed: %s" % str( e ) ) |
---|
| 73 | |
---|
| 74 | try: |
---|
| 75 | DatasetTagAssociation_table.drop() |
---|
| 76 | DatasetTagAssociation_table.create() |
---|
| 77 | except Exception, e: |
---|
| 78 | print str(e) |
---|
| 79 | log.debug( "Recreating dataset_tag_association table failed: %s" % str( e ) ) |
---|
| 80 | |
---|
| 81 | try: |
---|
| 82 | HistoryDatasetAssociationTagAssociation_table.drop() |
---|
| 83 | HistoryDatasetAssociationTagAssociation_table.create() |
---|
| 84 | except OperationalError, e: |
---|
| 85 | # Handle error that results from and index name that is too long; this occurs |
---|
| 86 | # in MySQL. |
---|
| 87 | if str(e).find("CREATE INDEX") != -1: |
---|
| 88 | # Manually create index. |
---|
| 89 | i = Index( "ix_hda_ta_history_dataset_association_id", HistoryDatasetAssociationTagAssociation_table.c.history_dataset_association_id ) |
---|
| 90 | try: |
---|
| 91 | i.create() |
---|
| 92 | except Exception, e: |
---|
| 93 | print str(e) |
---|
| 94 | log.debug( "Adding index 'ix_hda_ta_history_dataset_association_id' to table 'history_dataset_association_tag_association' table failed: %s" % str( e ) ) |
---|
| 95 | except Exception, e: |
---|
| 96 | print str(e) |
---|
| 97 | log.debug( "Recreating history_dataset_association_tag_association table failed: %s" % str( e ) ) |
---|
| 98 | |
---|
| 99 | # Create page_tag_association table. |
---|
| 100 | try: |
---|
| 101 | PageTagAssociation_table.create() |
---|
| 102 | except Exception, e: |
---|
| 103 | print str(e) |
---|
| 104 | log.debug( "Creating page_tag_association table failed: %s" % str( e ) ) |
---|
| 105 | |
---|
| 106 | def downgrade(): |
---|
| 107 | metadata.reflect() |
---|
| 108 | |
---|
| 109 | # No need to downgrade other tagging tables. They work fine with verision 16 code. |
---|
| 110 | |
---|
| 111 | # Drop page_tag_association table. |
---|
| 112 | try: |
---|
| 113 | PageTagAssociation_table.drop() |
---|
| 114 | except Exception, e: |
---|
| 115 | print str(e) |
---|
| 116 | log.debug( "Dropping page_tag_association table failed: %s" % str( e ) ) |
---|