o
    gS'                     @   s   d Z ddlmZ ddlmZ ddlmZ ddlmZ ddlm	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ZG dd deZG dd deZG dd deZdd ZG dd dZG dd deZeZdS )a|  
.. dialect:: mysql+asyncmy
    :name: asyncmy
    :dbapi: asyncmy
    :connectstring: mysql+asyncmy://user:password@host:port/dbname[?key=value&key=value...]
    :url: https://github.com/long2ice/asyncmy

Using a special asyncio mediation layer, the asyncmy dialect is usable
as the backend for the :ref:`SQLAlchemy asyncio <asyncio_toplevel>`
extension package.

This dialect should normally be used only with the
:func:`_asyncio.create_async_engine` engine creation function::

    from sqlalchemy.ext.asyncio import create_async_engine
    engine = create_async_engine("mysql+asyncmy://user:pass@hostname/dbname?charset=utf8mb4")


    )deque)asynccontextmanager   )MySQLDialect_pymysql   )pool)util)AdaptedConnection)asyncio)await_fallback)
await_onlyc                   @   s   e Zd ZdZdZdd Zedd Zedd Zed	d
 Z	e	j
dd
 Z	edd Zdd Zd#ddZdd Zdd Zdd Zdd Zdd Zdd Zd#dd Zd!d" ZdS )$AsyncAdapt_asyncmy_cursorF)_adapt_connection_connectionawait__cursor_rowsc                 C   s<   || _ |j| _|j| _| j }| | | _t | _d S N)r   r   r   cursor
__aenter__r   r   r   selfZadapt_connectionr    r   h/home/www/bk.finsightngr.online/venv20/lib/python3.10/site-packages/sqlalchemy/dialects/mysql/asyncmy.py__init__4   s   
z"AsyncAdapt_asyncmy_cursor.__init__c                 C      | j jS r   )r   descriptionr   r   r   r   r   >      z%AsyncAdapt_asyncmy_cursor.descriptionc                 C   r   r   )r   rowcountr   r   r   r   r   B   r   z"AsyncAdapt_asyncmy_cursor.rowcountc                 C   r   r   r   	arraysizer   r   r   r   r!   F   r   z#AsyncAdapt_asyncmy_cursor.arraysizec                 C   s   || j _d S r   r    r   valuer   r   r   r!   J      c                 C   r   r   )r   	lastrowidr   r   r   r   r%   N   r   z#AsyncAdapt_asyncmy_cursor.lastrowidc                 C      | j   d S r   )r   clearr   r   r   r   closeR   s   zAsyncAdapt_asyncmy_cursor.closeNc                 C      |  | ||S r   )r   _execute_async)r   	operation
parametersr   r   r   execute\   s   z!AsyncAdapt_asyncmy_cursor.executec                 C   r)   r   )r   _executemany_asyncr   r+   Zseq_of_parametersr   r   r   executemany_   s   
z%AsyncAdapt_asyncmy_cursor.executemanyc              	      s   | j  4 I d H 3 |d u r| j|I d H }n
| j||I d H }| js1t| j I d H | _|W  d   I d H  S 1 I d H sCw   Y  d S r   )r   _mutex_and_adapt_errorsr   r-   server_sider   fetchallr   )r   r+   r,   resultr   r   r   r*   d   s   0z(AsyncAdapt_asyncmy_cursor._execute_asyncc              	      sX   | j  4 I d H  | j||I d H W  d   I d H  S 1 I d H s%w   Y  d S r   )r   r1   r   r0   r/   r   r   r   r.   s   s   0z,AsyncAdapt_asyncmy_cursor._executemany_asyncc                 G   s   d S r   r   )r   Z
inputsizesr   r   r   setinputsizesw   s   z'AsyncAdapt_asyncmy_cursor.setinputsizesc                 c   s"    | j r| j  V  | j sd S d S r   r   popleftr   r   r   r   __iter__z   s   z"AsyncAdapt_asyncmy_cursor.__iter__c                 C   s   | j r| j  S d S r   r6   r   r   r   r   fetchone~   s   
z"AsyncAdapt_asyncmy_cursor.fetchonec                    s4   |d u r| j }| j  fddtt|t D S )Nc                    s   g | ]}   qS r   )r7   ).0_rrr   r   
<listcomp>   s    z7AsyncAdapt_asyncmy_cursor.fetchmany.<locals>.<listcomp>)r!   r   rangeminlenr   sizer   r<   r   	fetchmany   s    z#AsyncAdapt_asyncmy_cursor.fetchmanyc                 C   s   t | j}| j  |S r   )listr   r'   )r   retvalr   r   r   r3      s   

z"AsyncAdapt_asyncmy_cursor.fetchallr   )__name__
__module____qualname__r2   	__slots__r   propertyr   r   r!   setterr%   r(   r-   r0   r*   r.   r5   r8   r9   rD   r3   r   r   r   r   r   (   s0    








r   c                   @   s>   e Zd ZdZdZdd Zdd Zdd Zdd
dZdd Z	d	S )AsyncAdapt_asyncmy_ss_cursorr   Tc                 C   s>   || _ |j| _|j| _| j|jjjj}| | | _	d S r   )
r   r   r   r   dbapiasyncmyZcursorsZSSCursorr   r   r   r   r   r   r      s   
z%AsyncAdapt_asyncmy_ss_cursor.__init__c                 C   s(   | j d ur| | j   d | _ d S d S r   )r   r   r(   r   r   r   r   r(      s   

z"AsyncAdapt_asyncmy_ss_cursor.closec                 C      |  | j S r   )r   r   r9   r   r   r   r   r9         z%AsyncAdapt_asyncmy_ss_cursor.fetchoneNc                 C   s   |  | jj|dS )N)rC   )r   r   rD   rB   r   r   r   rD         z&AsyncAdapt_asyncmy_ss_cursor.fetchmanyc                 C   rP   r   )r   r   r3   r   r   r   r   r3      rQ   z%AsyncAdapt_asyncmy_ss_cursor.fetchallr   )
rG   rH   rI   rJ   r2   r   r(   r9   rD   r3   r   r   r   r   rM      s    
rM   c                   @   sx   e Zd ZeeZdZdd Zedd Z	dd Z
dd	 Zd
d Zdd ZdddZdd Zdd Zdd ZdddZdS )AsyncAdapt_asyncmy_connection)rN   _execute_mutexc                 C   s   || _ || _t | _d S r   )rN   r   r
   LockrT   )r   rN   
connectionr   r   r   r      s   z&AsyncAdapt_asyncmy_connection.__init__c              	   C  sh   | j 4 I d H  zd V  W n ty   | jdw W d   I d H  d S 1 I d H s-w   Y  d S )Nz7network operation failed due to asyncmy attribute error)rT   AttributeErrorrN   InternalErrorr   r   r   r   r1      s   
.z5AsyncAdapt_asyncmy_connection._mutex_and_adapt_errorsc                 C   s   |rJ |  |  S r   )r   _do_ping)r   Z	reconnectr   r   r   ping   s   z"AsyncAdapt_asyncmy_connection.pingc              	      sT   |   4 I d H  | jdI d H W  d   I d H  S 1 I d H s#w   Y  d S )NF)r1   r   rZ   r   r   r   r   rY      s   0z&AsyncAdapt_asyncmy_connection._do_pingc                 C   s
   | j  S r   )r   character_set_namer   r   r   r   r[      s   
z0AsyncAdapt_asyncmy_connection.character_set_namec                 C   s   |  | j| d S r   )r   r   
autocommitr"   r   r   r   r\      s   z(AsyncAdapt_asyncmy_connection.autocommitFc                 C   s   |rt | S t| S r   )rM   r   )r   r2   r   r   r   r      s   z$AsyncAdapt_asyncmy_connection.cursorc                 C      |  | j  d S r   )r   r   rollbackr   r   r   r   r^      rR   z&AsyncAdapt_asyncmy_connection.rollbackc                 C   r]   r   )r   r   commitr   r   r   r   r_      rR   z$AsyncAdapt_asyncmy_connection.commitc                 C   r&   r   )r   r(   r   r   r   r   	terminate   s   z'AsyncAdapt_asyncmy_connection.terminatereturnNc                 C   r]   r   )r   r   Zensure_closedr   r   r   r   r(      rR   z#AsyncAdapt_asyncmy_connection.close)Fra   N)rG   rH   rI   staticmethodr   r   rJ   r   r   r1   rZ   rY   r[   r\   r   r^   r_   r`   r(   r   r   r   r   rS      s    
	
rS   c                   @   s   e Zd ZdZeeZdS )%AsyncAdaptFallback_asyncmy_connectionr   N)rG   rH   rI   rJ   rc   r   r   r   r   r   r   rd      s    rd   c                 C   s   t | S )zReturn x as a binary type.)bytes)xr   r   r   _Binary   r   rg   c                   @   s^   e Zd Zdd Zdd ZedZedZedZ	edZ
ed	ZeeZd
d ZdS )AsyncAdapt_asyncmy_dbapic                 C   s   || _ d| _|   d S )Nformat)rO   Z
paramstyle_init_dbapi_attributes)r   rO   r   r   r   r      s   z!AsyncAdapt_asyncmy_dbapi.__init__c                 C   s$   dD ]}t | |t| jj| qd S )N)WarningErrorInterfaceErrorZ	DataErrorZDatabaseErrorZOperationalErrorrm   ZIntegrityErrorZProgrammingErrorrX   ZNotSupportedError)setattrgetattrrO   errors)r   namer   r   r   rj      s   z/AsyncAdapt_asyncmy_dbapi._init_dbapi_attributesSTRINGNUMBERBINARYDATETIME	TIMESTAMPc                 O   sV   | dd}| d| jj}t|rt| t||i |S t| t||i |S )Nasync_fallbackFZasync_creator_fn)	poprO   connectr   asboolrd   r   rS   r   )r   argkwrw   Z
creator_fnr   r   r   ry     s   
z AsyncAdapt_asyncmy_dbapi.connectN)rG   rH   rI   r   rj   r   symbolrr   rs   rt   ru   rv   rc   rg   Binaryry   r   r   r   r   rh      s    




rh   c                       sr   e Zd ZdZdZdZeZdZdZ	e
dd Ze
dd Zdd	d
Z fddZ fddZdd Zdd Z  ZS )MySQLDialect_asyncmyrO   Tc                 C   s   t tdS )NrO   )rh   
__import__)clsr   r   r   import_dbapi*  r$   z!MySQLDialect_asyncmy.import_dbapic                 C   s$   |j dd}t|rtjS tjS )Nrw   F)querygetr   rz   r   ZFallbackAsyncAdaptedQueuePoolZAsyncAdaptedQueuePool)r   urlrw   r   r   r   get_pool_class.  s   
z#MySQLDialect_asyncmy.get_pool_classra   Nc                 C   s   |   d S r   )r`   )r   Zdbapi_connectionr   r   r   do_terminate7  s   z!MySQLDialect_asyncmy.do_terminatec                    s   t  j|tddddS )Nuserdb)usernameZdatabase)Z_translate_args)supercreate_connect_argsdict)r   r   	__class__r   r   r   :  s   z(MySQLDialect_asyncmy.create_connect_argsc                    s0   t  |||r
dS t| }d|v pd|v S )NTznot connectedznetwork operation failed)r   is_disconnectstrlower)r   erV   r   Zstr_er   r   r   r   ?  s
   z"MySQLDialect_asyncmy.is_disconnectc                 C   s   ddl m} |jS )Nr   )CLIENT)Zasyncmy.constantsr   Z
FOUND_ROWS)r   r   r   r   r   _found_rows_client_flagH  s   z,MySQLDialect_asyncmy._found_rows_client_flagc                 C   s   |j S r   )r   )r   rV   r   r   r   get_driver_connectionM  s   z*MySQLDialect_asyncmy.get_driver_connectionrb   )rG   rH   rI   ZdriverZsupports_statement_cacheZsupports_server_side_cursorsrM   Z	_sscursoris_asyncZhas_terminateclassmethodr   r   r   r   r   r   r   __classcell__r   r   r   r   r      s     


	r   N)__doc__collectionsr   
contextlibr   Zpymysqlr    r   r   Zenginer	   Zutil.concurrencyr
   r   r   r   rM   rS   rd   rg   rh   r   dialectr   r   r   r   <module>   s$   i 7-1