Current File : //opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/dialects/mysql/dml.pyc
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Adds methods for MySQL-specific syntaxes such as ON DUPLICATE KEY UPDATE.
.. versionadded:: 1.2
c C s
| j j S( s� 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:`.Insert.values` method.
.. seealso::
:ref:`mysql_insert_on_duplicate_key_update` - example of how
to use :attr:`.Insert.inserted`
( t inserted_aliast columns( t self( ( sP /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/dialects/mysql/dml.pyt inserted s c C s t | j d d �S( Nt nameR ( R t table( R
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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:`.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:`.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`
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