o gX@sXddlmZddlmZddlmZddlmZddlmZddlmZddlmZddlm Z d d l m Z d d l m Z d d l mZd d lmZd dlmZd dlmZd dlmZd dlmZd dlmZd dlmZd dlmZd dlmZd dlmZdZ d"ddZ!GdddeZGdd d eZ"e eeefeee#efeeeffZ$d!S)#) annotations)Any)Dict)List)Mapping)Optional)Tuple)Union)exc)util)_DMLTableArgument)_exclusive_against) _generative)ColumnCollection)ReadOnlyColumnCollectionInsert) ClauseElement)KeyedColumnElement)alias)NamedFromClause)Self)rinserttabler returnrcCst|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)rrY/var/www/html/flaskapp/venv/lib/python3.10/site-packages/sqlalchemy/dialects/mysql/dml.pyr#src@sTeZdZdZdZdZedddZej dd d Z e e d d d id dddZ dS)ra 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 mysqlFr6ReadOnlyColumnCollection[str, KeyedColumnElement[Any]]cCs|jjS)aProvide 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_aliascolumnsselfrrrinsertedEs zInsert.insertedrcCst|jddS)Nr$)name)rrr"rrrr gszInsert.inserted_alias_post_values_clausezDThis Insert construct already has an ON DUPLICATE KEY clause present)msgsargs _UpdateArgkwrrcOsL|r |r td|rt|dkrtd|d}n|}t|j||_|S)a 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 simultaneouslyzDOnly a single dictionary or list of tuples is accepted positionally.r)r ArgumentErrorlenOnDuplicateClauser r&)r#r(r*valuesrrron_duplicate_key_updateks8  zInsert.on_duplicate_key_updateN)rr)rr)r(r)r*rrr)__name__ __module__ __qualname____doc__stringify_dialect inherit_cachepropertyr$r memoized_propertyr rrr0rrrrr6s  ! c@s4eZdZUdZdZded<ded<dZdd dZdS)r.r0NzOptional[List[str]]_parameter_orderingzDict[str, Any]updaterr rr)rNonecCsx||_t|tr|rt|dtrdd|D|_t|}t|tr)|s(tdnt|tr3t|}ntd||_dS)NrcSsg|]\}}|qSrr).0keyvaluerrr sz.OnDuplicateClause.__init__..z-update parameter dictionary must not be emptyztupdate parameter must be a non-empty dictionary or a ColumnCollection such as the `.c.` collection of a Table object) r isinstancelisttupler9dict ValueErrorrr:)r#r r:rrr__init__s(      zOnDuplicateClause.__init__)r rr:r)rr;)r1r2r3__visit_name__r9__annotations__r5rErrrrr.s  r.N)rr rr)% __future__rtypingrrrrrrr r r sql._typingr sql.baserrrrsql.dmlrStandardInsert sql.elementsrrsql.expressionrsql.selectabler util.typingr__all__rr.strr)rrrrs:                      '$