
    )f                    `   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 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 ddlmZ ddlmZ dZddZ  G d de      Z G d de      Z!eeeef   eee"ef      eeef   f   Z#y)    )annotations)Any)List)Mapping)Optional)Tuple)Union   )exc)util)_DMLTableArgument)_exclusive_against)_generative)ColumnCollection)ReadOnlyColumnCollectionInsert)ClauseElement)KeyedColumnElement)alias)NamedFromClause)Self)r   insertr   c                    t        |       S )a(  Construct a MySQL/MariaDB-specific variant :class:`_mysql.Insert`
    construct.

    .. container:: inherited_member

        The :func:`sqlalchemy.dialects.mysql.insert` function creates
        a :class:`sqlalchemy.dialects.mysql.Insert`.  This class is based
        on the dialect-agnostic :class:`_sql.Insert` construct which may
        be constructed using the :func:`_sql.insert` function in
        SQLAlchemy Core.

    The :class:`_mysql.Insert` construct includes additional methods
    :meth:`_mysql.Insert.on_duplicate_key_update`.

    r   )tables    Z/var/www/html/flask-app/venv/lib/python3.12/site-packages/sqlalchemy/dialects/mysql/dml.pyr   r   "   s      %=    c                      e Zd ZdZdZdZe	 	 dd       Zej                  dd       Z
e edddi      dd	              Zy
)r   a  MySQL-specific implementation of INSERT.

    Adds methods for MySQL-specific syntaxes such as ON DUPLICATE KEY UPDATE.

    The :class:`~.mysql.Insert` object is created using the
    :func:`sqlalchemy.dialects.mysql.insert` function.

    .. versionadded:: 1.2

    mysqlFc                .    | j                   j                  S )a  Provide the "inserted" namespace for an ON DUPLICATE KEY UPDATE
        statement

        MySQL's ON DUPLICATE KEY UPDATE clause allows reference to the row
        that would be inserted, via a special function called ``VALUES()``.
        This attribute provides all columns in this row to be referenceable
        such that they will render within a ``VALUES()`` function inside the
        ON DUPLICATE KEY UPDATE clause.    The attribute is named ``.inserted``
        so as not to conflict with the existing
        :meth:`_expression.Insert.values` method.

        .. tip::  The :attr:`_mysql.Insert.inserted` attribute is an instance
            of :class:`_expression.ColumnCollection`, which provides an
            interface the same as that of the :attr:`_schema.Table.c`
            collection described at :ref:`metadata_tables_and_columns`.
            With this collection, ordinary names are accessible like attributes
            (e.g. ``stmt.inserted.some_column``), but special names and
            dictionary method names should be accessed using indexed access,
            such as ``stmt.inserted["column name"]`` or
            ``stmt.inserted["values"]``.  See the docstring for
            :class:`_expression.ColumnCollection` for further examples.

        .. seealso::

            :ref:`mysql_insert_on_duplicate_key_update` - example of how
            to use :attr:`_expression.Insert.inserted`

        )inserted_aliascolumnsselfs    r   insertedzInsert.insertedD   s    @ ""***r   c                0    t        | j                  d      S )Nr%   )name)r   r   r#   s    r   r!   zInsert.inserted_aliasf   s    TZZj11r   _post_values_clausezDThis Insert construct already has an ON DUPLICATE KEY clause present)msgsc                    |r|rt        j                  d      |r)t        |      dkD  rt        j                  d      |d   }n|}t        | j                  |      | _        | S )aO  
        Specifies the ON DUPLICATE KEY UPDATE clause.

        :param \**kw:  Column keys linked to UPDATE values.  The
         values may be any SQL expression or supported literal Python
         values.

        .. warning:: This dictionary does **not** take into account
           Python-specified default UPDATE values or generation functions,
           e.g. those specified using :paramref:`_schema.Column.onupdate`.
           These values will not be exercised for an ON DUPLICATE KEY UPDATE
           style of UPDATE, unless values are manually specified here.

        :param \*args: As an alternative to passing key/value parameters,
         a dictionary or list of 2-tuples can be passed as a single positional
         argument.

         Passing a single dictionary is equivalent to the keyword argument
         form::

            insert().on_duplicate_key_update({"name": "some name"})

         Passing a list of 2-tuples indicates that the parameter assignments
         in the UPDATE clause should be ordered as sent, in a manner similar
         to that described for the :class:`_expression.Update`
         construct overall
         in :ref:`tutorial_parameter_ordered_updates`::

            insert().on_duplicate_key_update(
                [("name", "some name"), ("value", "some value")])

         .. versionchanged:: 1.3 parameters can be specified as a dictionary
            or list of 2-tuples; the latter form provides for parameter
            ordering.


        .. versionadded:: 1.2

        .. seealso::

            :ref:`mysql_insert_on_duplicate_key_update`

        z9Can't pass kwargs and positional arguments simultaneously   zDOnly a single dictionary or list of tuples is accepted positionally.r   )r   ArgumentErrorlenOnDuplicateClauser!   r(   )r$   argskwvaluess       r   on_duplicate_key_updatezInsert.on_duplicate_key_updatej   sw    h B##K  4y1}''0  !WFF#4$
  r   N)returnz6ReadOnlyColumnCollection[str, KeyedColumnElement[Any]])r3   r   )r/   
_UpdateArgr0   r   r3   r   )__name__
__module____qualname____doc__stringify_dialectinherit_cachepropertyr%   r   memoized_propertyr!   r   r   r2    r   r   r   r   5   sz    	  M+	?+ +B 
2 2 ! $5
> >r   c                  8    e Zd ZU dZdZded<   dZ	 	 	 	 	 	 ddZy)r.   r2   NzOptional[List[str]]_parameter_orderingr   c                V   || _         t        |t              r:|r8t        |d   t              r%|D cg c]  \  }}|	 c}}| _        t        |      }t        |t
              r|s9t        d      t        |t              rt        |      }|| _        y t        d      || _        y c c}}w )Nr   z-update parameter dictionary must not be emptyztupdate parameter must be a non-empty dictionary or a ColumnCollection such as the `.c.` collection of a Table object)	r!   
isinstancelisttupler?   dict
ValueErrorr   update)r$   r!   rF   keyvalues        r   __init__zOnDuplicateClause.__init__   s     - fd#z&)U3>D'E
U'ED$&\Ffd# C   01&\F  $ 
 ! (Fs   B%)r!   r   rF   r4   r3   None)r5   r6   r7   __visit_name__r?   __annotations__r9   rI   r=   r   r   r.   r.      s6    .N/3,3-7A	r   r.   N)r   r   r3   r   )$
__future__r   typingr   r   r   r   r   r	    r   r   sql._typingr   sql.baser   r   r   r   sql.dmlr   StandardInsertsql.elementsr   r   sql.expressionr   sql.selectabler   util.typingr   __all__r   r.   strr4   r=   r   r   <module>rZ      s    #         , * # ( 0 / ) . # -  &{^ {|# #L CHtE#s(O,.>sCx.HH
r   