Initial Configuration Push

deps/sqlalchemy/dialects/mysql/cymysql.py

@@ -0,0 +1,87 @@
+# mysql/cymysql.py
+# Copyright (C) 2005-2016 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: http://www.opensource.org/licenses/mit-license.php
+
+"""
+
+.. dialect:: mysql+cymysql
+    :name: CyMySQL
+    :dbapi: cymysql
+    :connectstring: mysql+cymysql://<username>:<password>@<host>/<dbname>\
+[?<options>]
+    :url: https://github.com/nakagami/CyMySQL
+
+"""
+import re
+
+from .mysqldb import MySQLDialect_mysqldb
+from .base import (BIT, MySQLDialect)
+from ... import util
+
+
+class _cymysqlBIT(BIT):
+    def result_processor(self, dialect, coltype):
+        """Convert a MySQL's 64 bit, variable length binary string to a long.
+        """
+
+        def process(value):
+            if value is not None:
+                v = 0
+                for i in util.iterbytes(value):
+                    v = v << 8 | i
+                return v
+            return value
+        return process
+
+
+class MySQLDialect_cymysql(MySQLDialect_mysqldb):
+    driver = 'cymysql'
+
+    description_encoding = None
+    supports_sane_rowcount = True
+    supports_sane_multi_rowcount = False
+    supports_unicode_statements = True
+
+    colspecs = util.update_copy(
+        MySQLDialect.colspecs,
+        {
+            BIT: _cymysqlBIT,
+        }
+    )
+
+    @classmethod
+    def dbapi(cls):
+        return __import__('cymysql')
+
+    def _get_server_version_info(self, connection):
+        dbapi_con = connection.connection
+        version = []
+        r = re.compile('[.\-]')
+        for n in r.split(dbapi_con.server_version):
+            try:
+                version.append(int(n))
+            except ValueError:
+                version.append(n)
+        return tuple(version)
+
+    def _detect_charset(self, connection):
+        return connection.connection.charset
+
+    def _extract_error_code(self, exception):
+        return exception.errno
+
+    def is_disconnect(self, e, connection, cursor):
+        if isinstance(e, self.dbapi.OperationalError):
+            return self._extract_error_code(e) in \
+                (2006, 2013, 2014, 2045, 2055)
+        elif isinstance(e, self.dbapi.InterfaceError):
+            # if underlying connection is closed,
+            # this is the error you get
+            return True
+        else:
+            return False
+
+dialect = MySQLDialect_cymysql