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편집 파일: dml.cpython-311.pyc
� �܋f� � � � d dl mZ d dl mZ d dlmZ d dlmZ d dlm Z d dl mZ d dlm Z dZ G d � d e� � Z e edd� � Z G d � de � � ZdS )� )�exc)�util)�_generative)�Insert)� ClauseElement)�alias)�public_factory)r �insertc �^ � e Zd ZdZed� � � Zej d� � � Ze d� � � Z dS )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 c � � | 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. .. seealso:: :ref:`mysql_insert_on_duplicate_key_update` - example of how to use :attr:`_expression.Insert.inserted` )�inserted_alias�columns��selfs �T/opt/cloudlinux/venv/lib64/python3.11/site-packages/sqlalchemy/dialects/mysql/dml.py�insertedzInsert.inserted s � �$ �"�*�*� c �. � t | j d�� � S )Nr )�name)r �tabler s r r zInsert.inserted_alias- s � ��T�Z�j�1�1�1�1r c �� � |r|rt j d� � �|r0t |� � dk rt j d� � �|d }n|}t | dd� � }t ||� � | _ | S )aE 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:`updates_order_parameters`:: 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 N)r � ArgumentError�len�getattr�OnDuplicateClause�_post_values_clause)r �args�kw�valuesr s r �on_duplicate_key_updatezInsert.on_duplicate_key_update1 s� � �Z � �B� ��#�K�� � � � ��4�y�y�1�}�}��'�0�� � � �!�W�F�F��F� ��'7��>�>��#4�^�V�#L�#L�� ��r N)�__name__� __module__�__qualname__�__doc__�propertyr r �memoized_propertyr r r"