GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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�

p��g9+��H�dZddlmZddlmZddlmZdgZGd�de�Zy)a6Define attributes on ORM-mapped classes that have "index" attributes for
columns with :class:`_types.Indexable` types.

"index" means the attribute is associated with an element of an
:class:`_types.Indexable` column with the predefined index to access it.
The :class:`_types.Indexable` types include types such as
:class:`_types.ARRAY`, :class:`_types.JSON` and
:class:`_postgresql.HSTORE`.



The :mod:`~sqlalchemy.ext.indexable` extension provides
:class:`_schema.Column`-like interface for any element of an
:class:`_types.Indexable` typed column. In simple cases, it can be
treated as a :class:`_schema.Column` - mapped attribute.

Synopsis
========

Given ``Person`` as a model with a primary key and JSON data field.
While this field may have any number of elements encoded within it,
we would like to refer to the element called ``name`` individually
as a dedicated attribute which behaves like a standalone column::

    from sqlalchemy import Column, JSON, Integer
    from sqlalchemy.ext.declarative import declarative_base
    from sqlalchemy.ext.indexable import index_property

    Base = declarative_base()


    class Person(Base):
        __tablename__ = "person"

        id = Column(Integer, primary_key=True)
        data = Column(JSON)

        name = index_property("data", "name")

Above, the ``name`` attribute now behaves like a mapped column.   We
can compose a new ``Person`` and set the value of ``name``::

    >>> person = Person(name="Alchemist")

The value is now accessible::

    >>> person.name
    'Alchemist'

Behind the scenes, the JSON field was initialized to a new blank dictionary
and the field was set::

    >>> person.data
    {'name': 'Alchemist'}

The field is mutable in place::

    >>> person.name = "Renamed"
    >>> person.name
    'Renamed'
    >>> person.data
    {'name': 'Renamed'}

When using :class:`.index_property`, the change that we make to the indexable
structure is also automatically tracked as history; we no longer need
to use :class:`~.mutable.MutableDict` in order to track this change
for the unit of work.

Deletions work normally as well::

    >>> del person.name
    >>> person.data
    {}

Above, deletion of ``person.name`` deletes the value from the dictionary,
but not the dictionary itself.

A missing key will produce ``AttributeError``::

    >>> person = Person()
    >>> person.name
    AttributeError: 'name'

Unless you set a default value::

    >>> class Person(Base):
    ...     __tablename__ = "person"
    ...
    ...     id = Column(Integer, primary_key=True)
    ...     data = Column(JSON)
    ...
    ...     name = index_property("data", "name", default=None)  # See default

    >>> person = Person()
    >>> print(person.name)
    None


The attributes are also accessible at the class level.
Below, we illustrate ``Person.name`` used to generate
an indexed SQL criteria::

    >>> from sqlalchemy.orm import Session
    >>> session = Session()
    >>> query = session.query(Person).filter(Person.name == "Alchemist")

The above query is equivalent to::

    >>> query = session.query(Person).filter(Person.data["name"] == "Alchemist")

Multiple :class:`.index_property` objects can be chained to produce
multiple levels of indexing::

    from sqlalchemy import Column, JSON, Integer
    from sqlalchemy.ext.declarative import declarative_base
    from sqlalchemy.ext.indexable import index_property

    Base = declarative_base()


    class Person(Base):
        __tablename__ = "person"

        id = Column(Integer, primary_key=True)
        data = Column(JSON)

        birthday = index_property("data", "birthday")
        year = index_property("birthday", "year")
        month = index_property("birthday", "month")
        day = index_property("birthday", "day")

Above, a query such as::

    q = session.query(Person).filter(Person.year == "1980")

On a PostgreSQL backend, the above query will render as:

.. sourcecode:: sql

    SELECT person.id, person.data
    FROM person
    WHERE person.data -> %(data_1)s -> %(param_1)s = %(param_2)s

Default Values
==============

:class:`.index_property` includes special behaviors for when the indexed
data structure does not exist, and a set operation is called:

* For an :class:`.index_property` that is given an integer index value,
  the default data structure will be a Python list of ``None`` values,
  at least as long as the index value; the value is then set at its
  place in the list.  This means for an index value of zero, the list
  will be initialized to ``[None]`` before setting the given value,
  and for an index value of five, the list will be initialized to
  ``[None, None, None, None, None]`` before setting the fifth element
  to the given value.   Note that an existing list is **not** extended
  in place to receive a value.

* for an :class:`.index_property` that is given any other kind of index
  value (e.g. strings usually), a Python dictionary is used as the
  default data structure.

* The default data structure can be set to any Python callable using the
  :paramref:`.index_property.datatype` parameter, overriding the previous
  rules.


Subclassing
===========

:class:`.index_property` can be subclassed, in particular for the common
use case of providing coercion of values or SQL expressions as they are
accessed.  Below is a common recipe for use with a PostgreSQL JSON type,
where we want to also include automatic casting plus ``astext()``::

    class pg_json_property(index_property):
        def __init__(self, attr_name, index, cast_type):
            super(pg_json_property, self).__init__(attr_name, index)
            self.cast_type = cast_type

        def expr(self, model):
            expr = super(pg_json_property, self).expr(model)
            return expr.astext.cast(self.cast_type)

The above subclass can be used with the PostgreSQL-specific
version of :class:`_postgresql.JSON`::

    from sqlalchemy import Column, Integer
    from sqlalchemy.ext.declarative import declarative_base
    from sqlalchemy.dialects.postgresql import JSON

    Base = declarative_base()


    class Person(Base):
        __tablename__ = "person"

        id = Column(Integer, primary_key=True)
        data = Column(JSON)

        age = pg_json_property("data", "age", Integer)

The ``age`` attribute at the instance level works as before; however
when rendering SQL, PostgreSQL's ``->>`` operator will be used
for indexed access, instead of the usual index operator of ``->``::

    >>> query = session.query(Person).filter(Person.age < 20)

The above query will render:
.. sourcecode:: sql

    SELECT person.id, person.data
    FROM person
    WHERE CAST(person.data ->> %(data_1)s AS INTEGER) < %(param_1)s

�)�inspect)�hybrid_property)�
flag_modified�index_propertyc�Z��eZdZdZe�Zedddf�fd�	Zd
d�Zd�Zd�Z	d�Z
d	�Z�xZS)rz�A property generator. The generated property describes an object
    attribute that corresponds to an :class:`_types.Indexable`
    column.

    .. seealso::

        :mod:`sqlalchemy.ext.indexable`

    NTc����|r;t�|�|j|j|j|j
�n&t�|�|jdd|j
�||_�|_||_t�t�}|xr|}|�||_||_
y|r�fd�|_||_
yt|_||_
y)a}Create a new :class:`.index_property`.

        :param attr_name:
            An attribute name of an `Indexable` typed column, or other
            attribute that returns an indexable structure.
        :param index:
            The index to be used for getting and setting this value.  This
            should be the Python-side index value for integers.
        :param default:
            A value which will be returned instead of `AttributeError`
            when there is not a value at given index.
        :param datatype: default datatype to use when the field is empty.
            By default, this is derived from the type of index used; a
            Python list for an integer index, or a Python dictionary for
            any other style of index.   For a list, the list will be
            initialized to a list of None values that is at least
            ``index`` elements long.
        :param mutable: if False, writes and deletes to the attribute will
            be disallowed.
        :param onebased: assume the SQL representation of this value is
            one-based; that is, the first index in SQL is 1, not zero.
        Nc�F��t�dz�D�cgc]}d��c}Scc}w�N�)�range)�x�indexs ��I/opt/hc_python/lib64/python3.12/site-packages/sqlalchemy/ext/indexable.py�<lambda>z)index_property.__init__.<locals>.<lambda>%s"���u�U�Q�Y�7G�(H�7G�!��7G�(H��(Hs�	)�super�__init__�fget�fset�fdel�expr�	attr_namer�default�
isinstance�int�datatype�dict�onebased)	�selfrrrr�mutabler�
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�c�x�|j|jk(rt|j�|�|jS�N)r�_NO_DEFAULT_ARGUMENT�AttributeErrorr)r�errs  r�
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