B
    þ¦†\û  ã               @   s\   d Z ddlmZ ddlmZ ddlmZ ddlmZ G dd„ deƒZG d	d
„ d
eƒZ	e	Z
dS )zÉ

.. dialect:: mysql+cymysql
    :name: CyMySQL
    :dbapi: cymysql
    :connectstring: mysql+cymysql://<username>:<password>@<host>/<dbname>[?<options>]
    :url: https://github.com/nakagami/CyMySQL

é   )ÚBIT)ÚMySQLDialect)ÚMySQLDialect_mysqldbé   )Úutilc               @   s   e Zd Zdd„ ZdS )Ú_cymysqlBITc             C   s   dd„ }|S )zKConvert a MySQL's 64 bit, variable length binary string to a long.
        c             S   s4   | d k	r0d}xt  | ¡D ]}|d> |B }qW |S | S )Né    é   )r   Z	iterbytes)ÚvalueÚvÚi© r   ú@lib/python3.7/site-packages/sqlalchemy/dialects/mysql/cymysql.pyÚprocess   s    z-_cymysqlBIT.result_processor.<locals>.processr   )ÚselfÚdialectZcoltyper   r   r   r   Úresult_processor   s    z_cymysqlBIT.result_processorN)Ú__name__Ú
__module__Ú__qualname__r   r   r   r   r   r      s   r   c               @   sV   e Zd ZdZdZdZdZdZe 	e
jeei¡Zedd„ ƒZdd„ Zd	d
„ Zdd„ ZdS )ÚMySQLDialect_cymysqlÚcymysqlNTFc             C   s   t dƒS )Nr   )Ú
__import__)Úclsr   r   r   Údbapi1   s    zMySQLDialect_cymysql.dbapic             C   s   |j jS )N)Ú
connectionÚcharset)r   r   r   r   r   Ú_detect_charset5   s    z$MySQLDialect_cymysql._detect_charsetc             C   s   |j S )N)Úerrno)r   Z	exceptionr   r   r   Ú_extract_error_code8   s    z(MySQLDialect_cymysql._extract_error_codec             C   s6   t || jjƒr|  |¡dkS t || jjƒr.dS dS d S )N)iÖ  iÝ  iÞ  iý  i  TF)Ú
isinstancer   ZOperationalErrorr   ZInterfaceError)r   Úer   Zcursorr   r   r   Úis_disconnect;   s    z"MySQLDialect_cymysql.is_disconnect)r   r   r   ZdriverZdescription_encodingZsupports_sane_rowcountZsupports_sane_multi_rowcountZsupports_unicode_statementsr   Zupdate_copyr   Zcolspecsr   r   Úclassmethodr   r   r   r"   r   r   r   r   r   '   s   r   N)Ú__doc__Úbaser   r   Zmysqldbr   Ú r   r   r   r   r   r   r   r   Ú<module>   s   %