1 files changed, 140 insertions, 0 deletions
diff --git a/django/db/backends/ado_mssql/base.py b/django/db/backends/ado_mssql/base.py
new file mode 100644
index 0000000000..b43be1fa7a
--- /dev/null
+++ b/django/db/backends/ado_mssql/base.py
@@ -0,0 +1,140 @@
+"""
+ADO MSSQL database backend for Django.
+
+Requires adodbapi 2.0.1: http://adodbapi.sourceforge.net/
+"""
+
+from django.db.backends import util
+import adodbapi as Database
+import datetime
+try:
+    import mx
+except ImportError:
+    mx = None
+
+DatabaseError = Database.DatabaseError
+
+# We need to use a special Cursor class because adodbapi expects question-mark
+# param style, but Django expects "%s". This cursor converts question marks to
+# format-string style.
+class Cursor(Database.Cursor):
+    def executeHelper(self, operation, isStoredProcedureCall, parameters=None):
+        if parameters is not None and "%s" in operation:
+            operation = operation.replace("%s", "?")
+        Database.Cursor.executeHelper(self, operation, isStoredProcedureCall, parameters)
+
+class Connection(Database.Connection):
+    def cursor(self):
+        return Cursor(self)
+Database.Connection = Connection
+
+origCVtoP = Database.convertVariantToPython
+def variantToPython(variant, adType):
+    if type(variant) == bool and adType == 11:
+        return variant  # bool not 1/0
+    res = origCVtoP(variant, adType)
+    if mx is not None and type(res) == mx.DateTime.mxDateTime.DateTimeType:
+        # Convert ms.DateTime objects to Python datetime.datetime objects.
+        tv = list(res.tuple()[:7])
+        tv[-2] = int(tv[-2])
+        return datetime.datetime(*tuple(tv))
+    if type(res) == float and str(res)[-2:] == ".0":
+        return int(res) # If float but int, then int.
+    return res
+Database.convertVariantToPython = variantToPython
+
+try:
+    # Only exists in Python 2.4+
+    from threading import local
+except ImportError:
+    # Import copy of _thread_local.py from Python 2.4
+    from django.utils._threading_local import local
+
+class DatabaseWrapper(local):
+    def __init__(self):
+        self.connection = None
+        self.queries = []
+
+    def cursor(self):
+        from django.conf import settings
+        if self.connection is None:
+            if settings.DATABASE_NAME == '' or settings.DATABASE_USER == '':
+                from django.core.exceptions import ImproperlyConfigured
+                raise ImproperlyConfigured, "You need to specify both DATABASE_NAME and DATABASE_USER in your Django settings file."
+            if not settings.DATABASE_HOST:
+                settings.DATABASE_HOST = "127.0.0.1"
+            # TODO: Handle DATABASE_PORT.
+            conn_string = "PROVIDER=SQLOLEDB;DATA SOURCE=%s;UID=%s;PWD=%s;DATABASE=%s" % (settings.DATABASE_HOST, settings.DATABASE_USER, settings.DATABASE_PASSWORD, settings.DATABASE_NAME)
+            self.connection = Database.connect(conn_string)
+        cursor = self.connection.cursor()
+        if settings.DEBUG:
+            return base.CursorDebugWrapper(cursor, self)
+        return cursor
+
+    def _commit(self):
+        return self.connection.commit()
+
+    def _rollback(self):
+        if self.connection:
+            return self.connection.rollback()
+
+    def close(self):
+        if self.connection is not None:
+            self.connection.close()
+            self.connection = None
+
+supports_constraints = True
+
+def quote_name(name):
+    if name.startswith('[') and name.endswith(']'):
+        return name # Quoting once is enough.
+    return '[%s]' % name
+
+dictfetchone = util.dictfetchone
+dictfetchmany = util.dictfetchmany
+dictfetchall  = util.dictfetchall
+
+def get_last_insert_id(cursor, table_name, pk_name):
+    cursor.execute("SELECT %s FROM %s WHERE %s = @@IDENTITY" % (pk_name, table_name, pk_name))
+    return cursor.fetchone()[0]
+
+def get_date_extract_sql(lookup_type, table_name):
+    # lookup_type is 'year', 'month', 'day'
+    return "DATEPART(%s, %s)" % (lookup_type, table_name)
+
+def get_date_trunc_sql(lookup_type, field_name):
+    # lookup_type is 'year', 'month', 'day'
+    if lookup_type=='year':
+        return "Convert(datetime, Convert(varchar, DATEPART(year, %s)) + '/01/01')" % field_name
+    if lookup_type=='month':
+        return "Convert(datetime, Convert(varchar, DATEPART(year, %s)) + '/' + Convert(varchar, DATEPART(month, %s)) + '/01')" % (field_name, field_name)
+    if lookup_type=='day':
+        return "Convert(datetime, Convert(varchar(12), %s))" % field_name
+
+def get_limit_offset_sql(limit, offset=None):
+    # TODO: This is a guess. Make sure this is correct.
+    sql = "LIMIT %s" % limit
+    if offset and offset != 0:
+        sql += " OFFSET %s" % offset
+    return sql
+
+def get_random_function_sql():
+    return "RAND()"
+
+def get_drop_foreignkey_sql():
+    return "DROP CONSTRAINT"
+
+OPERATOR_MAPPING = {
+    'exact': '= %s',
+    'iexact': 'LIKE %s',
+    'contains': 'LIKE %s',
+    'icontains': 'LIKE %s',
+    'gt': '> %s',
+    'gte': '>= %s',
+    'lt': '< %s',
+    'lte': '<= %s',
+    'startswith': 'LIKE %s',
+    'endswith': 'LIKE %s',
+    'istartswith': 'LIKE %s',
+    'iendswith': 'LIKE %s',
+}