o
    E6d+                     @   s   d Z ddl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G dd dZG dd deZG dd deZeZdS )aZ  

.. dialect:: sqlite+aiosqlite
    :name: aiosqlite
    :dbapi: aiosqlite
    :connectstring: sqlite+aiosqlite:///file_path
    :url: https://pypi.org/project/aiosqlite/

The aiosqlite dialect provides support for the SQLAlchemy asyncio interface
running on top of pysqlite.

aiosqlite is a wrapper around pysqlite that uses a background thread for
each connection.   It does not actually use non-blocking IO, as SQLite
databases are not socket-based.  However it does provide a working asyncio
interface that's useful for testing and prototyping purposes.

Using a special asyncio mediation layer, the aiosqlite 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("sqlite+aiosqlite:///filename")

The URL passes through all arguments to the ``pysqlite`` driver, so all
connection arguments are the same as they are for that of :ref:`pysqlite`.

.. _aiosqlite_udfs:

User-Defined Functions
----------------------

aiosqlite extends pysqlite to support async, so we can create our own user-defined functions (UDFs)
in Python and use them directly in SQLite queries as described here: :ref:`pysqlite_udfs`.


    N)partial   )SQLiteExecutionContext)SQLiteDialect_pysqlite   )pool)util)AdaptedConnection)await_fallback)
await_onlyc                   @   s`   e Zd ZdZdZdd Zdd Zd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_aiosqlite_cursor)_adapt_connection_connectiondescriptionawait__rows	arraysizerowcount	lastrowidFc                 C   s2   || _ |j| _|j| _d| _d| _d | _g | _d S )Nr   )r   r   r   r   r   r   r   )selfZadapt_connection r   {C:\Users\jesus\OneDrive\Desktop\erpjis_fastapi\backend\jisbackend\Lib\site-packages\sqlalchemy/dialects/sqlite/aiosqlite.py__init__L   s   
z$AsyncAdapt_aiosqlite_cursor.__init__c                 C   s   g | j d d < d S Nr   r   r   r   r   closeU   s   z!AsyncAdapt_aiosqlite_cursor.closeNc              
   C   s   zU|  | j }|d u r|  || n	|  ||| |jr8|j| _d | _| _| js7|  | | _	nd | _|j| _|j| _| jsP|  |
  W d S || _W d S  tyn } z| j| W Y d }~d S d }~ww )Nr   )r   r   cursorexecuter   r   r   server_sidefetchallr   r   _cursor	Exceptionr   _handle_exception)r   	operation
parametersr"   errorr   r   r   r   X   s*   z#AsyncAdapt_aiosqlite_cursor.executec              
   C   s   z&|  | j }|  ||| d | _|j| _|j| _|  |  W d S  ty? } z| j	
| W Y d }~d S d }~ww r   )r   r   r   executemanyr   r   r   r   r#   r   r$   )r   r%   Zseq_of_parametersr"   r'   r   r   r   r(   s   s   z'AsyncAdapt_aiosqlite_cursor.executemanyc                 G   s   d S r   r   )r   Z
inputsizesr   r   r   setinputsizes~   s   z)AsyncAdapt_aiosqlite_cursor.setinputsizesc                 c   s$    | j r| j dV  | j sd S d S Nr   r   popr   r   r   r   __iter__   s   z$AsyncAdapt_aiosqlite_cursor.__iter__c                 C   s   | j r	| j dS d S r*   r+   r   r   r   r   fetchone   s   z$AsyncAdapt_aiosqlite_cursor.fetchonec                 C   s8   |d u r| j }| jd| }| j|d  | jd d < |S r*   )r   r   )r   sizeretvalr   r   r   	fetchmany   s
   z%AsyncAdapt_aiosqlite_cursor.fetchmanyc                 C   s    | j d d  }g | j d d < |S r   r   )r   r0   r   r   r   r!      s   z$AsyncAdapt_aiosqlite_cursor.fetchallr   )__name__
__module____qualname__	__slots__r    r   r   r   r(   r)   r-   r.   r1   r!   r   r   r   r   r   >   s    	

r   c                       sF   e Zd ZdZdZ fddZdd Zdd Zdd
dZdd Z	  Z
S )AsyncAdapt_aiosqlite_ss_cursorr"   Tc                    s   t  j|i | d | _d S r   )superr   r"   )r   argkw	__class__r   r   r      s   
z'AsyncAdapt_aiosqlite_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$AsyncAdapt_aiosqlite_ss_cursor.closec                 C      |  | j S r   )r   r"   r.   r   r   r   r   r.         z'AsyncAdapt_aiosqlite_ss_cursor.fetchoneNc                 C   s"   |d u r| j }| | jj|dS )N)r/   )r   r   r"   r1   )r   r/   r   r   r   r1      s   z(AsyncAdapt_aiosqlite_ss_cursor.fetchmanyc                 C   r<   r   )r   r"   r!   r   r   r   r   r!      r=   z'AsyncAdapt_aiosqlite_ss_cursor.fetchallr   )r2   r3   r4   r5   r    r   r   r.   r1   r!   __classcell__r   r   r:   r   r6      s    
r6   c                   @   st   e Zd ZeeZdZdd Zedd Z	e	j
dd Z	dd Zdd
dZdd Zdd Zdd Zdd Zdd ZdS )AsyncAdapt_aiosqlite_connection)dbapic                 C   s   || _ || _d S r   )r@   r   )r   r@   
connectionr   r   r   r      s   
z(AsyncAdapt_aiosqlite_connection.__init__c                 C   s   | j jS r   )r   isolation_levelr   r   r   r   rB      s   z/AsyncAdapt_aiosqlite_connection.isolation_levelc              
   C   st   dd }t || jj|}t  }| jj||f z| |W S  t	y9 } z| 
| W Y d }~d S d }~ww )Nc                 S   s
   || _ d S r   )rB   )rA   valuer   r   r   set_iso   s   
z@AsyncAdapt_aiosqlite_connection.isolation_level.<locals>.set_iso)r   r   Z_connasyncioget_event_loopcreate_futureZ_tx
put_nowaitr   r#   r$   )r   rC   rD   functionfuturer'   r   r   r   rB      s   c              
   O   sP   z|  | jj|i | W d S  ty' } z| | W Y d }~d S d }~ww r   )r   r   create_functionr#   r$   )r   argsr9   r'   r   r   r   rK      s   z/AsyncAdapt_aiosqlite_connection.create_functionFc                 C   s   |rt | S t| S r   )r6   r   )r   r    r   r   r   r      s   z&AsyncAdapt_aiosqlite_connection.cursorc                 O   s   |  | jj|i |S r   )r   r   r   )r   rL   r9   r   r   r   r      s   z'AsyncAdapt_aiosqlite_connection.executec              
   C   H   z|  | j  W d S  ty# } z| | W Y d }~d S d }~ww r   )r   r   rollbackr#   r$   r   r'   r   r   r   rN         z(AsyncAdapt_aiosqlite_connection.rollbackc              
   C   rM   r   )r   r   commitr#   r$   rO   r   r   r   rQ      rP   z&AsyncAdapt_aiosqlite_connection.commitc              
   C   sZ   z|  | j  W d S  ty   Y d S  ty, } z| | W Y d }~d S d }~ww r   )r   r   r   
ValueErrorr#   r$   rO   r   r   r   r      s   	z%AsyncAdapt_aiosqlite_connection.closec                 C   s,   t |tr|jd dkr| jjd||)Nr   no active connection)
isinstancerR   rL   r@   sqliteOperationalErrorrO   r   r   r   r$      s   z1AsyncAdapt_aiosqlite_connection._handle_exceptionN)F)r2   r3   r4   staticmethodr   r   r5   r   propertyrB   setterrK   r   r   rN   rQ   r   r$   r   r   r   r   r?      s    


r?   c                   @   s   e Zd ZdZeeZdS )'AsyncAdaptFallback_aiosqlite_connectionr   N)r2   r3   r4   r5   rW   r
   r   r   r   r   r   rZ   
  s    rZ   c                   @   s$   e Zd Zdd Zdd Zdd ZdS )AsyncAdapt_aiosqlite_dbapic                 C   s   || _ || _d| _|   d S )NZqmark)	aiosqliterU   Z
paramstyle_init_dbapi_attributes)r   r\   rU   r   r   r   r     s   z#AsyncAdapt_aiosqlite_dbapi.__init__c                 C   s^   dD ]}t | |t| j| qdD ]}t | |t| j| qdD ]}t | |t| j| q d S )N)ZDatabaseErrorErrorZIntegrityErrorZNotSupportedErrorrV   ZProgrammingErrorZsqlite_versionZsqlite_version_info)ZPARSE_COLNAMESZPARSE_DECLTYPES)Binary)setattrgetattrr\   rU   )r   namer   r   r   r]     s   
z1AsyncAdapt_aiosqlite_dbapi._init_dbapi_attributesc                 O   sj   | dd}| dd }|r||i |}n| jj|i |}d|_t|r.t| t|S t| t	|S )Nasync_fallbackFZasync_creator_fnT)
r,   r\   connectdaemonr   ZasboolrZ   r
   r?   r   )r   r8   r9   rc   Z
creator_fnrA   r   r   r   rd   *  s   
z"AsyncAdapt_aiosqlite_dbapi.connectN)r2   r3   r4   r   r]   rd   r   r   r   r   r[     s    r[   c                   @   s   e Zd Zdd ZdS ) SQLiteExecutionContext_aiosqlitec                 C   s   | j jddS )NT)r    )Z_dbapi_connectionr   r   r   r   r   create_server_side_cursorB  s   z:SQLiteExecutionContext_aiosqlite.create_server_side_cursorN)r2   r3   r4   rg   r   r   r   r   rf   A  s    rf   c                       sP   e Zd ZdZdZdZdZeZe	dd Z
e	dd Z fddZd	d
 Z  ZS )SQLiteDialect_aiosqliter\   Tc                 C   s   t tdtdS )Nr\   sqlite3)r[   
__import__)clsr   r   r   import_dbapiP  s   z$SQLiteDialect_aiosqlite.import_dbapic                 C   s   |  |rtjS tjS r   )Z_is_url_file_dbr   ZNullPoolZ
StaticPool)rk   urlr   r   r   get_pool_classV  s   
z&SQLiteDialect_aiosqlite.get_pool_classc                    s.   t || jjrdt|v rdS t |||S )NrS   T)rT   r@   rV   strr7   is_disconnect)r   erA   r   r:   r   r   rp   ]  s   z%SQLiteDialect_aiosqlite.is_disconnectc                 C   s   |j S r   )r   )r   rA   r   r   r   get_driver_connectione  s   z-SQLiteDialect_aiosqlite.get_driver_connection)r2   r3   r4   ZdriverZsupports_statement_cacheis_asyncZsupports_server_side_cursorsrf   Zexecution_ctx_clsclassmethodrl   rn   rp   rr   r>   r   r   r:   r   rh   F  s    

rh   )__doc__rE   	functoolsr   baser   Zpysqliter    r   r   Zenginer	   Zutil.concurrencyr
   r   r   r6   r?   rZ   r[   rf   rh   dialectr   r   r   r   <module>   s$   	([W1#