From ba2fdc6004a5d8716e7f6058a20dab65d4de344d Mon Sep 17 00:00:00 2001
From: Jeremy Goecks <jeremy.goecks@emory.edu>
Date: Thu, 27 Aug 2009 16:10:51 -0400
Subject: [PATCH] Add tables to support tagging of histories, datasets, ands
 HDAs.

---
 .../model/migrate/versions/0015_tagging.py    | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 lib/galaxy/model/migrate/versions/0015_tagging.py

diff --git a/lib/galaxy/model/migrate/versions/0015_tagging.py b/lib/galaxy/model/migrate/versions/0015_tagging.py
new file mode 100644
index 00000000000..7f1034851e9
--- /dev/null
+++ b/lib/galaxy/model/migrate/versions/0015_tagging.py
@@ -0,0 +1,56 @@
+from sqlalchemy import *
+from migrate import *
+
+import datetime
+now = datetime.datetime.utcnow
+
+# Need our custom types, but don't import anything else from model
+from galaxy.model.custom_types import *
+
+import logging
+log = logging.getLogger( __name__ )
+
+metadata = MetaData( migrate_engine )
+
+# New tables to support tagging of histories, datasets, and history-dataset associations.
+Tag_table = Table( "tag", metadata,
+    Column( "id", Integer, primary_key=True ),
+    Column( "type", Integer ),
+    Column( "parent_id", Integer, ForeignKey( "tag.id" ) ),
+    Column( "name", TrimmedString(255) ), 
+    UniqueConstraint( "name" ) )
+
+HistoryTagAssociation_table = Table( "history_tag_association", metadata,
+    Column( "history_id", Integer, ForeignKey( "history.id" ), index=True ),
+    Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ),
+    Column( "user_tname", TrimmedString(255), index=True),
+    Column( "value", TrimmedString(255), index=True),
+    Column( "user_value", TrimmedString(255), index=True) )
+    
+DatasetTagAssociation_table = Table( "dataset_tag_association", metadata,
+    Column( "dataset_id", Integer, ForeignKey( "dataset.id" ), index=True ),
+    Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ),
+    Column( "user_tname", TrimmedString(255), index=True),
+    Column( "value", TrimmedString(255), index=True),
+    Column( "user_value", TrimmedString(255), index=True) )
+
+HistoryDatasetAssociationTagAssociation_table = Table( "history_dataset_association_tag_association", metadata,
+    Column( "history_dataset_association_id", Integer, ForeignKey( "history_dataset_association.id" ), index=True ),
+    Column( "tag_id", Integer, ForeignKey( "tag.id" ), index=True ),
+    Column( "user_tname", TrimmedString(255), index=True),
+    Column( "value", TrimmedString(255), index=True),
+    Column( "user_value", TrimmedString(255), index=True) )
+
+def upgrade():
+    metadata.reflect()
+    Tag_table.create()
+    HistoryTagAssociation_table.create()
+    DatasetTagAssociation_table.create()
+    HistoryDatasetAssociationTagAssociation_table.create()
+    
+def downgrade():
+    metadata.reflect()
+    Tag_table.drop()
+    HistoryTagAssociation_table.drop()
+    DatasetTagAssociation_table.drop()
+    HistoryDatasetAssociationTagAssociation_table.drop()
\ No newline at end of file