1 | """ |
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2 | This migration script adds the tables necessary to support tagging of histories, |
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3 | datasets, and history-dataset associations (user views of datasets). |
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4 | |
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5 | If using mysql, this script will display the following error, which is corrected in the next |
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6 | migration script: |
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7 | |
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8 | history_dataset_association_tag_association table failed: (OperationalError) |
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9 | (1059, "Identifier name 'ix_history_dataset_association_tag_association_history_dataset_association_id' |
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10 | is too long) |
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11 | """ |
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12 | |
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13 | from sqlalchemy import * |
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14 | from migrate import * |
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15 | |
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16 | import datetime |
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17 | now = datetime.datetime.utcnow |
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18 | |
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19 | # Need our custom types, but don't import anything else from model |
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20 | from galaxy.model.custom_types import * |
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21 | |
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22 | import logging |
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23 | log = logging.getLogger( __name__ ) |
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24 | |
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25 | metadata = MetaData( migrate_engine ) |
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26 | |
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27 | def display_migration_details(): |
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28 | print "" |
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29 | print "This migration script adds the tables necessary to support tagging of histories," |
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30 | print "datasets, and history-dataset associations (user views of datasets)." |
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31 | print "" |
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32 | print "If using mysql, this script will display the following error, which is " |
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33 | print "corrected in the next migration script:" |
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34 | print "history_dataset_association_tag_association table failed: " |
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35 | print "(OperationalError) (1059, 'Identifier name " |
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36 | print "'ix_history_dataset_association_tag_association_history_dataset_association_id'" |
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37 | print "is too long)" |
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38 | |
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39 | |
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40 | # New tables to support tagging of histories, datasets, and history-dataset associations. |
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41 | Tag_table = Table( "tag", metadata, |
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42 | Column( "id", Integer, primary_key=True ), |
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43 | Column( "type", Integer ), |
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44 | Column( "parent_id", Integer, ForeignKey( "tag.id" ) ), |
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45 | Column( "name", TrimmedString(255) ), |
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46 | UniqueConstraint( "name" ) ) |
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47 | |
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48 | HistoryTagAssociation_table = Table( "history_tag_association", metadata, |
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49 | Column( "history_id", Integer, ForeignKey( "history.id" ), index=True ), |
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50 | Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ), |
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51 | Column( "user_tname", TrimmedString(255), index=True), |
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52 | Column( "value", TrimmedString(255), index=True), |
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53 | Column( "user_value", TrimmedString(255), index=True) ) |
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54 | |
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55 | DatasetTagAssociation_table = Table( "dataset_tag_association", metadata, |
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56 | Column( "dataset_id", Integer, ForeignKey( "dataset.id" ), index=True ), |
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57 | Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ), |
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58 | Column( "user_tname", TrimmedString(255), index=True), |
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59 | Column( "value", TrimmedString(255), index=True), |
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60 | Column( "user_value", TrimmedString(255), index=True) ) |
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61 | |
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62 | HistoryDatasetAssociationTagAssociation_table = Table( "history_dataset_association_tag_association", metadata, |
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63 | Column( "history_dataset_association_id", Integer, ForeignKey( "history_dataset_association.id" ), index=True ), |
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64 | Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ), |
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65 | Column( "user_tname", TrimmedString(255), index=True), |
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66 | Column( "value", TrimmedString(255), index=True), |
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67 | Column( "user_value", TrimmedString(255), index=True) ) |
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68 | |
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69 | def upgrade(): |
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70 | display_migration_details() |
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71 | metadata.reflect() |
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72 | try: |
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73 | Tag_table.create() |
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74 | except Exception, e: |
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75 | print str(e) |
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76 | log.debug( "Creating tag table failed: %s" % str( e ) ) |
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77 | try: |
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78 | HistoryTagAssociation_table.create() |
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79 | except Exception, e: |
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80 | print str(e) |
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81 | log.debug( "Creating history_tag_association table failed: %s" % str( e ) ) |
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82 | try: |
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83 | DatasetTagAssociation_table.create() |
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84 | except Exception, e: |
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85 | print str(e) |
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86 | log.debug( "Creating dataset_tag_association table failed: %s" % str( e ) ) |
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87 | try: |
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88 | HistoryDatasetAssociationTagAssociation_table.create() |
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89 | except Exception, e: |
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90 | print str(e) |
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91 | log.debug( "Creating history_dataset_association_tag_association table failed: %s" % str( e ) ) |
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92 | |
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93 | def downgrade(): |
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94 | metadata.reflect() |
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95 | try: |
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96 | Tag_table.drop() |
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97 | except Exception, e: |
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98 | print str(e) |
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99 | log.debug( "Dropping tag table failed: %s" % str( e ) ) |
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100 | try: |
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101 | HistoryTagAssociation_table.drop() |
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102 | except Exception, e: |
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103 | print str(e) |
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104 | log.debug( "Dropping history_tag_association table failed: %s" % str( e ) ) |
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105 | try: |
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106 | DatasetTagAssociation_table.drop() |
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107 | except Exception, e: |
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108 | print str(e) |
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109 | log.debug( "Dropping dataset_tag_association table failed: %s" % str( e ) ) |
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110 | try: |
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111 | HistoryDatasetAssociationTagAssociation_table.drop() |
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112 | except Exception, e: |
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113 | print str(e) |
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114 | log.debug( "Dropping history_dataset_association_tag_association table failed: %s" % str( e ) ) |
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