1 files changed, 0 insertions, 108 deletions
diff --git a/migrate/changeset/databases/oracle.py b/migrate/changeset/databases/oracle.py
deleted file mode 100644
index 2f16b5b..0000000
--- a/migrate/changeset/databases/oracle.py
+++ /dev/null
@@ -1,108 +0,0 @@
-"""
-   Oracle database specific implementations of changeset classes.
-"""
-import sqlalchemy as sa
-from sqlalchemy.databases import oracle as sa_base
-
-from migrate import exceptions
-from migrate.changeset import ansisql
-
-
-OracleSchemaGenerator = sa_base.OracleDDLCompiler
-
-
-class OracleColumnGenerator(OracleSchemaGenerator, ansisql.ANSIColumnGenerator):
-    pass
-
-
-class OracleColumnDropper(ansisql.ANSIColumnDropper):
-    pass
-
-
-class OracleSchemaChanger(OracleSchemaGenerator, ansisql.ANSISchemaChanger):
-
-    def get_column_specification(self, column, **kwargs):
-        # Ignore the NOT NULL generated
-        override_nullable = kwargs.pop('override_nullable', None)
-        if override_nullable:
-            orig = column.nullable
-            column.nullable = True
-        ret = super(OracleSchemaChanger, self).get_column_specification(
-            column, **kwargs)
-        if override_nullable:
-            column.nullable = orig
-        return ret
-
-    def visit_column(self, delta):
-        keys = delta.keys()
-
-        if 'name' in keys:
-            self._run_subvisit(delta,
-                               self._visit_column_name,
-                               start_alter=False)
-
-        if len(set(('type', 'nullable', 'server_default')).intersection(keys)):
-            self._run_subvisit(delta,
-                               self._visit_column_change,
-                               start_alter=False)
-
-    def _visit_column_change(self, table, column, delta):
-        # Oracle cannot drop a default once created, but it can set it
-        # to null.  We'll do that if default=None
-        # http://forums.oracle.com/forums/message.jspa?messageID=1273234#1273234
-        dropdefault_hack = (column.server_default is None \
-                                and 'server_default' in delta.keys())
-        # Oracle apparently doesn't like it when we say "not null" if
-        # the column's already not null. Fudge it, so we don't need a
-        # new function
-        notnull_hack = ((not column.nullable) \
-                            and ('nullable' not in delta.keys()))
-        # We need to specify NULL if we're removing a NOT NULL
-        # constraint
-        null_hack = (column.nullable and ('nullable' in delta.keys()))
-
-        if dropdefault_hack:
-            column.server_default = sa.PassiveDefault(sa.sql.null())
-        if notnull_hack:
-            column.nullable = True
-        colspec = self.get_column_specification(column,
-            override_nullable=null_hack)
-        if null_hack:
-            colspec += ' NULL'
-        if notnull_hack:
-            column.nullable = False
-        if dropdefault_hack:
-            column.server_default = None
-
-        self.start_alter_table(table)
-        self.append("MODIFY (")
-        self.append(colspec)
-        self.append(")")
-
-
-class OracleConstraintCommon(object):
-
-    def get_constraint_name(self, cons):
-        # Oracle constraints can't guess their name like other DBs
-        if not cons.name:
-            raise exceptions.NotSupportedError(
-                "Oracle constraint names must be explicitly stated")
-        return cons.name
-
-
-class OracleConstraintGenerator(OracleConstraintCommon,
-                                ansisql.ANSIConstraintGenerator):
-    pass
-
-
-class OracleConstraintDropper(OracleConstraintCommon,
-                              ansisql.ANSIConstraintDropper):
-    pass
-
-
-class OracleDialect(ansisql.ANSIDialect):
-    columngenerator = OracleColumnGenerator
-    columndropper = OracleColumnDropper
-    schemachanger = OracleSchemaChanger
-    constraintgenerator = OracleConstraintGenerator
-    constraintdropper = OracleConstraintDropper