o
     Zh1'                     @   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 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")


    )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 )$AsyncAdapt_asyncmy_cursorF)_adapt_connection_connectionawait__cursor_rowsc                 C   s:   || _ |j| _|j| _| j }| | | _g | _d S N)r   r   r   cursor
__aenter__r   r   selfZadapt_connectionr    r   X/var/www/html/lang_env/lib/python3.10/site-packages/sqlalchemy/dialects/mysql/asyncmy.py__init__3   s   

z"AsyncAdapt_asyncmy_cursor.__init__c                 C      | j jS r   )r   descriptionr   r   r   r   r   =      z%AsyncAdapt_asyncmy_cursor.descriptionc                 C   r   r   )r   rowcountr   r   r   r   r   A   r   z"AsyncAdapt_asyncmy_cursor.rowcountc                 C   r   r   r   	arraysizer   r   r   r   r    E   r   z#AsyncAdapt_asyncmy_cursor.arraysizec                 C   s   || j _d S r   r   r   valuer   r   r   r    I      c                 C   r   r   )r   	lastrowidr   r   r   r   r$   M   r   z#AsyncAdapt_asyncmy_cursor.lastrowidc                 C   s   g | j d d < d S r   r   r   r   r   r   closeQ   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_sidelistfetchallr   )r   r)   r*   resultr   r   r   r(   c   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   r/   r   r.   r-   r   r   r   r,   r   s   0z,AsyncAdapt_asyncmy_cursor._executemany_asyncc                 G   s   d S r   r   )r   Z
inputsizesr   r   r   setinputsizesv   s   z'AsyncAdapt_asyncmy_cursor.setinputsizesc                 c   s$    | j r| j dV  | j sd S d S Nr   r   popr   r   r   r   __iter__y   s   z"AsyncAdapt_asyncmy_cursor.__iter__c                 C   s   | j r	| j dS d S r5   r6   r   r   r   r   fetchone}   s   z"AsyncAdapt_asyncmy_cursor.fetchonec                 C   s8   |d u r| j }| jd| }| j|d  | jd d < |S r5   )r    r   )r   sizeretvalr   r   r   	fetchmany   s
   z#AsyncAdapt_asyncmy_cursor.fetchmanyc                 C   s    | j d d  }g | j d d < |S r   r%   )r   r;   r   r   r   r2      s   z"AsyncAdapt_asyncmy_cursor.fetchallr   )__name__
__module____qualname__r0   	__slots__r   propertyr   r   r    setterr$   r&   r+   r.   r(   r,   r4   r8   r9   r<   r2   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)r:   )r   r   r<   )r   r:   r   r   r   r<         z&AsyncAdapt_asyncmy_ss_cursor.fetchmanyc                 C   rF   r   )r   r   r2   r   r   r   r   r2      rG   z%AsyncAdapt_asyncmy_ss_cursor.fetchallr   )
r=   r>   r?   r@   r0   r   r&   r9   r<   r2   r   r   r   r   rC      s    
rC   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)rD   _execute_mutexc                 C   s   || _ || _t | _d S r   )rD   r   r	   LockrJ   )r   rD   
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)rJ   AttributeErrorrD   InternalErrorr   r   r   r   r/      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)r/   r   rP   r   r   r   r   rO      s   0z&AsyncAdapt_asyncmy_connection._do_pingc                 C   s
   | j  S r   )r   character_set_namer   r   r   r   rQ      s   
z0AsyncAdapt_asyncmy_connection.character_set_namec                 C   s   |  | j| d S r   )r   r   
autocommitr!   r   r   r   rR      s   z(AsyncAdapt_asyncmy_connection.autocommitFc                 C   s   |rt | S t| S r   )rC   r   )r   r0   r   r   r   r      s   z$AsyncAdapt_asyncmy_connection.cursorc                 C      |  | j  d S r   )r   r   rollbackr   r   r   r   rT      rH   z&AsyncAdapt_asyncmy_connection.rollbackc                 C   rS   r   )r   r   commitr   r   r   r   rU      rH   z$AsyncAdapt_asyncmy_connection.commitc                 C   s   | j   d S r   )r   r&   r   r   r   r   	terminate   s   z'AsyncAdapt_asyncmy_connection.terminatereturnNc                 C   rS   r   )r   r   Zensure_closedr   r   r   r   r&      rH   z#AsyncAdapt_asyncmy_connection.close)FrW   N)r=   r>   r?   staticmethodr   r   r@   r   r   r/   rP   rO   rQ   rR   r   rT   rU   rV   r&   r   r   r   r   rI      s    
	
rI   c                   @   s   e Zd ZdZeeZdS )%AsyncAdaptFallback_asyncmy_connectionr   N)r=   r>   r?   r@   rY   r
   r   r   r   r   r   rZ      s    rZ   c                 C   s   t | S )zReturn x as a binary type.)bytes)xr   r   r   _Binary   r   r]   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)rE   Z
paramstyle_init_dbapi_attributes)r   rE   r   r   r   r      s   z!AsyncAdapt_asyncmy_dbapi.__init__c                 C   s$   dD ]}t | |t| jj| qd S )N)WarningErrorInterfaceErrorZ	DataErrorZDatabaseErrorZOperationalErrorrc   ZIntegrityErrorZProgrammingErrorrN   ZNotSupportedError)setattrgetattrrE   errors)r   namer   r   r   r`      s   z/AsyncAdapt_asyncmy_dbapi._init_dbapi_attributesSTRINGNUMBERBINARYDATETIME	TIMESTAMPc                 O   sV   | dd}| d| jj}t|rt| t||i |S t| t||i |S )Nasync_fallbackFZasync_creator_fn)	r7   rE   connectr   asboolrZ   r
   rI   r   )r   argkwrm   Z
creator_fnr   r   r   rn     s   
z AsyncAdapt_asyncmy_dbapi.connectN)r=   r>   r?   r   r`   r   symbolrh   ri   rj   rk   rl   rY   r]   Binaryrn   r   r   r   r   r^      s    




r^   c                       sr   e Zd ZdZdZdZeZdZdZ	e
dd Ze
dd Zdd	d
Z fddZ fddZdd Zdd Z  ZS )MySQLDialect_asyncmyrE   Tc                 C   s   t tdS )NrE   )r^   
__import__)clsr   r   r   import_dbapi*  r#   z!MySQLDialect_asyncmy.import_dbapic                 C   s$   |j dd}t|rtjS tjS )Nrm   F)querygetr   ro   r   ZFallbackAsyncAdaptedQueuePoolZAsyncAdaptedQueuePool)rv   urlrm   r   r   r   get_pool_class.  s   
z#MySQLDialect_asyncmy.get_pool_classrW   Nc                 C   s   |   d S r   )rV   )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   rz   	__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   erL   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   rL   r   r   r   get_driver_connectionM  s   z*MySQLDialect_asyncmy.get_driver_connectionrX   )r=   r>   r?   ZdriverZsupports_statement_cacheZsupports_server_side_cursorsrC   Z	_sscursoris_asyncZhas_terminateclassmethodrw   r{   r|   r   r   r   r   __classcell__r   r   r   r   rt      s     


	rt   N)__doc__
contextlibr   Zpymysqlr    r   r   Zenginer   Zutil.concurrencyr	   r
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