a
    [g:                    @  s  d Z ddlmZ ddlZddl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
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m0Z0 d'dlmZ1 d'd)lm2Z2 d'd*lm3Z3 d'd+lm4Z4 d'dlmZ d'dl4mZ5 d'd,l4m6Z6 d'd-l7m8Z8 d'd.l7m9Z9 d'd/l:m;Z; e
rfd
d0l<m=Z= d
d1lm>Z> d'd2l?m@Z@ dfd4d5ZAejBjCd3d3d6G d7d8 d8e&ZDe3jEejBjCd9d3d6G d:d; d;e&ZFe3jEejBjCd9d<G d=d> d>eFZGe3jEejBjCd9d9d?ejBjCd9d9d9d@ejBjCd9dAG dBdC dCe&ZHG dDdE dEZIG dFdG dGe&ZJe3jEej>jCd9dAG dHdI dIe&ZKe3jEej>jCdJdKej>jCddKG dLdM dMeJZLe3jEej>jCd9dKej>jCdNdKej>jCdOdKej>jCdPdKej>jCdQdKG dRdS dSeJejMe3jNZOG dTdU dUZPG dVdW dWeJZQej>jCdXdKG dYdZ dZeQZRe3jEej>jCd[dKG d\d] d]eQZSe3jEej>jCd^dKej>jCd3dKG d_d` d`eJZTe3jEej>jCdadKG dbdc dceQejMZUddde ZVdS )gzWsqlalchemy.orm.interfaces.LoaderStrategy
   implementations, and related MapperOptions.    )annotationsN)Any)Dict)Optional)Tuple)TYPE_CHECKING)Union   )
attributes)exc)
interfaces)loading)path_registry)
properties)query)relationships)
unitofwork)util)_DEFER_FOR_STATE)_RAISE_FOR_STATE)_SET_DEFERRED_EXPIRED)ATTR_WAS_SET)LoaderCallableStatus)PASSIVE_OFF)PassiveFlag)_column_descriptions)ORMCompileState)ORMSelectCompileState)QueryContext)LoaderStrategy)StrategizedProperty)_state_session)InstanceState)Load)_none_only_set)AliasedClass   )event)inspect)log)sql)visitors)LABEL_STYLE_TABLENAME_PLUS_COL)Select)Literal)Mapper)RelationshipProperty)ColumnElementFc	                   s"  g }
|o| j |r"| jr"|
t | j| jjv rV| jj| j \|
fdd |rf|
tj |r| j	  r| j
r|
 fdd |jD ]}| |j| ju r|j| jstj|j| jf| |||o| jp| jtju ||||| p| j | jd|	}|
D ]}|||  q
qd S )Nc                   s   t j| |j fi S N)orm_utilZ_validator_eventskeydescprop)fnopts g/var/www/html/cobodadashboardai.evdpl.com/venv/lib/python3.9/site-packages/sqlalchemy/orm/strategies.py<lambda>\   s   z%_register_attribute.<locals>.<lambda>c                   s   t |  S r2   )r
   Zbackref_listenersr5   )backrefuselistr:   r;   r<   j   s   )Zparent_tokenr>   compare_function	useobjectZtrackparenttypecallable	callable_active_history
impl_classZsend_modified_eventsdoc)r>   Zsingle_parentappendsingle_parent_validatorr4   parentZ
validatorsr   Ztrack_cascade_eventsZback_populatesZ_effective_sync_backrefZself_and_descendants_propsgetclass_managerZ_attr_has_implr
   Zregister_attribute_implclass_	directionr   Z	ONETOMANYZviewonlyrE   )r7   mapperr@   r?   rA   rB   Zproxy_propertyrC   rD   kwZlisten_hooksmr6   hookr:   )r=   r8   r9   r>   r;   _register_attributeF   sZ    





rR   )
instrumentdeferredc                      s6   e Zd ZdZdZ fddZd
ddZdd	 Z  ZS )UninstrumentedColumnLoaderzRepresent a non-instrumented MapperProperty.

    The polymorphic_on argument of mapper() often results in this,
    if the argument is against the with_polymorphic selectable.

    columnsc                   s   t  || | jj| _d S r2   )super__init__parent_propertyrW   selfrH   strategy_key	__class__r:   r;   rY      s    z#UninstrumentedColumnLoader.__init__Nc           	      K  s*   | j D ]}|r|j | }||| qd S r2   )rW   _append_dedupe_col_collection)	r\   compile_statequery_entitypathloadoptadaptercolumn_collectionkwargscr:   r:   r;   setup_query   s    


z&UninstrumentedColumnLoader.setup_queryc	           	      C  s   d S r2   r:   	r\   contextrb   rc   rd   rN   resultre   
populatorsr:   r:   r;   create_row_processor   s    z/UninstrumentedColumnLoader.create_row_processor)N)	__name__
__module____qualname____doc__	__slots__rY   ri   rn   __classcell__r:   r:   r^   r;   rU      s    
rU   Tc                      s>   e Zd ZdZdZ fddZdddZdd	 Zd
d Z  Z	S )ColumnLoaderz8Provide loading behavior for a :class:`.ColumnProperty`.)rW   is_compositec                   s*   t  || | jj| _t| jd| _d S )Ncomposite_class)rX   rY   rZ   rW   hasattrrv   r[   r^   r:   r;   rY      s    
zColumnLoader.__init__Fc	                 K  sv   | j D ]<}
|r6|r,||
}
|
d u r6 d S n
|j |
 }
||
| q| j d }|rh|j | }|d u rhd S ||| j< d S Nr   )rW   Zadapt_check_presentr`   rZ   )r\   ra   rb   rc   rd   re   rf   memoized_populatorsZcheck_for_adaptrg   rh   fetchr:   r:   r;   ri      s    




zColumnLoader.setup_queryc                 C  s`   d| _ | jd j}| jjpD| jd jpD|jd uoD|j|jd | ju }t	| j|d|j
|d d S )NTr   F)r@   r?   rC   )is_class_levelrW   typerZ   rC   primary_keyZversion_id_col_columntopropertyrJ   rR   compare_values)r\   rN   ZcoltyperC   r:   r:   r;   init_class_attribute   s"    


z!ColumnLoader.init_class_attributec	                 C  sZ   | j D ]:}	|r|j |	 }	||	d}
|
r|d | j|
f  qVq|d | jdf d S NFZquickexpireT)rW   _getterrF   r4   )r\   rk   rb   rc   rd   rN   rl   re   rm   colgetterr:   r:   r;   rn     s    

z!ColumnLoader.create_row_processor)F)
ro   rp   rq   rr   rs   rY   ri   r   rn   rt   r:   r:   r^   r;   ru      s    
!ru   )Zquery_expressionc                      s4   e Zd Z fddZdd Zdd Zdd Z  ZS )	ExpressionColumnLoaderc                   s<   t  || t d  t fdd| jjD | _d S )Nc                 3  s   | ]}|   V  qd S r2   )compare.0rh   nullr:   r;   	<genexpr>)  s   z2ExpressionColumnLoader.__init__.<locals>.<genexpr>)	rX   rY   r*   r   labelanyrZ   rW   _have_default_expressionr[   r^   r   r;   rY   "  s
    zExpressionColumnLoader.__init__c                 K  s   d }	|r|j r|j }	n| jr$| jj}	|	d u r0d S |	D ]}
|rF|j|
 }
||
| q4|	d }|rv|j| }|d u rvd S ||| j< d S ry   )_extra_criteriar   rZ   rW   r`   )r\   ra   rb   rc   rd   re   rf   rz   rg   rW   rh   r{   r:   r:   r;   ri   -  s"    


z"ExpressionColumnLoader.setup_queryc	                 C  sh   |rd|j rd|j }	|	D ]:}
|r&|j|
 }
||
d}|r|d | j|f  qdq|d | jdf d S r   )r   rW   r   rF   r4   )r\   rk   rb   rc   rd   rN   rl   re   rm   rW   r   r   r:   r:   r;   rn   R  s    

z+ExpressionColumnLoader.create_row_processorc                 C  s(   d| _ t| j|d| jd jjdd d S )NTFr   )r@   r?   Zaccepts_scalar_loader)r|   rR   rZ   rW   r}   r   r\   rN   r:   r:   r;   r   l  s    z+ExpressionColumnLoader.init_class_attribute)ro   rp   rq   rY   ri   rn   r   rt   r:   r:   r^   r;   r     s   %r   )rT   rS   )rT   rS   	raiseload)Z
do_nothingc                      sN   e Zd ZdZdZ fddZdd Zdd Zdd
dZdd Z	dd Z
  ZS )DeferredColumnLoaderzAProvide loading behavior for a deferred :class:`.ColumnProperty`.)rW   groupr   c                   sJ   t  || t| jdr"td| jdd| _| jj| _| jj	| _	d S )Nrw   z8Deferred loading for composite types not implemented yetr   F)
rX   rY   rx   rZ   NotImplementedErrorstrategy_optsrJ   r   rW   r   r[   r^   r:   r;   rY     s    
zDeferredColumnLoader.__init__c	           
   
   C  s   |j rB|jjjrB| j|jjjv rB| jd|||||||| nH| jsv| j	rX| jj
}	n| jj}	|d | j|	f n|d | jdf d S )N)rT   FrS   Tnewr   F)refresh_stater   _compile_options_only_load_propsr4   rZ   _get_strategyrn   r|   r   Z_raise_column_loaderZ_deferred_column_loaderrF   )
r\   rk   rb   rc   rd   rN   rl   re   rm   Zset_deferred_for_local_stater:   r:   r;   rn     s4    z)DeferredColumnLoader.create_row_processorc                 C  s,   d| _ t| j|d| jd jj| jdd d S )NTFr   )r@   r?   rB   Zload_on_unexpire)r|   rR   rZ   rW   r}   r   _load_for_stater   r:   r:   r;   r     s    z)DeferredColumnLoader.init_class_attributeNc	           
      K  s   |j jr| jjsT|r(t| j| jjsT|rF| j	rF|j
d| j	 dsT|r|| j|v r|| jdj|||||||fi |	 n.| jrt|| j< n| jst|| j< n
t|| j< d S )Nzundefer_group_%sFr   )compile_optionsZ_render_for_subqueryrZ   Z_renders_in_subqueriessetrW   intersectionrH   Z_should_undefer_in_wildcardr   
local_optsrJ   r4   r   ri   r|   r   r   r   r   )
r\   ra   rb   rc   rd   re   rf   rz   Zonly_load_propsrO   r:   r:   r;   ri     sP    


z DeferredColumnLoader.setup_queryc                   s   j stjS |tj@ stjS jj} jr@ fdd|j	D }n j g}fdd|D }t
}|d u rtdt j f  jr |d tjt|t tjS )Nc                   s4   g | ],}t |trt |jtr|j jkr|jqS r:   )
isinstancer    strategyr   r   r4   )r   pr\   r:   r;   
<listcomp>	  s
   
z8DeferredColumnLoader._load_for_state.<locals>.<listcomp>c                   s   g | ]}| j v r|qS r:   )Z
unmodified)r   k)stater:   r;   r         zfParent instance %s is not bound to a Session; deferred load operation of attribute '%s' cannot proceedraise)r4   r   
ATTR_EMPTYr   SQL_OKPASSIVE_NO_RESULTmanagerrN   r   Ziterate_propertiesr!   orm_excDetachedInstanceErrorr3   	state_strr   _invoke_raise_loadr   Zload_scalar_attributesr   r   r   )r\   r   passivelocalparentZtoloadr   sessionr:   )r\   r   r;   r     s0    

z$DeferredColumnLoader._load_for_statec                 C  s   t d| f d S )Nz+'%s' is not available due to raiseload=Truesa_excInvalidRequestErrorr\   r   r   lazyr:   r:   r;   r   '  s    z'DeferredColumnLoader._invoke_raise_load)N)ro   rp   rq   rr   rs   rY   rn   r   ri   r   r   rt   r:   r:   r^   r;   r   x  s   
3 
3(r   c                   @  s0   e Zd ZdZddddddZejfdd	Zd
S )LoadDeferredColumnsz7serializable loader object used by DeferredColumnLoaderFstrboolr4   r   c                 C  s   || _ || _d S r2   r   )r\   r4   r   r:   r:   r;   rY   0  s    zLoadDeferredColumns.__init__c                 C  s>   | j }|jj}|j| }| jr$d}nd}||}|||S )N)rT   Tr   )r   T)r   r   )r4   r   rN   rI   r   r   r   )r\   r   r   r4   r   r7   r]   r   r:   r:   r;   __call__4  s    

zLoadDeferredColumns.__call__N)F)ro   rp   rq   rr   rY   r
   r   r   r:   r:   r:   r;   r   -  s   r   c                      s,   e Zd ZdZdZ fddZdd Z  ZS )AbstractRelationshipLoaderz0LoaderStratgies which deal with related objects.)rN   targetr>   entityc                   s:   t  || | jj| _| jj| _| jj| _| jj| _d S r2   )rX   rY   rZ   rN   r   r   r>   r[   r^   r:   r;   rY   J  s
    


z#AbstractRelationshipLoader.__init__c	           	   
   C  s    | j d||||||||S )N))r   	immediate)rZ   r   rn   rj   r:   r:   r;   #_immediateload_create_row_processorQ  s    z>AbstractRelationshipLoader._immediateload_create_row_processor)ro   rp   rq   rr   rs   rY   r   rt   r:   r:   r^   r;   r   E  s   r   c                   @  s   e Zd ZdZdS )DoNothingLoaderzRelationship loader that makes no change to the object's state.

    Compared to NoLoader, this loader does not initialize the
    collection/attribute to empty/none; the usual default LazyLoader will
    take effect.

    N)ro   rp   rq   rr   r:   r:   r:   r;   r   j  s   r   Znoload)r   c                   @  s$   e Zd ZdZdZdd Zdd ZdS )NoLoaderzQProvide loading behavior for a :class:`.Relationship`
    with "lazy=None".

    r:   c                 C  s    d| _ t| j|d| jjd d S )NT)r@   rA   )r|   rR   rZ   collection_classr   r:   r:   r;   r     s    zNoLoader.init_class_attributec	           
        s$    fdd}	|d   j|	f d S )Nc                   s&    j rt| | j n
d | j< d S r2   )r>   r
   init_state_collectionr4   r   dict_rowr   r:   r;   invoke_no_load  s    z5NoLoader.create_row_processor.<locals>.invoke_no_loadr   )rF   r4   )
r\   rk   rb   rc   rd   rN   rl   re   rm   r   r:   r   r;   rn     s    zNoLoader.create_row_processorN)ro   rp   rq   rr   rs   r   rn   r:   r:   r:   r;   r   v  s   
r   selectr   raise_on_sqlZbaked_selectc                      s   e Zd ZU dZdZded< ded< ded< ded< d	ed
< d	dd fddZdd Zdd Zdd Z	dd Z
ddddejfddZdd Zeddd Zd d! Z  ZS )"
LazyLoaderztProvide loading behavior for a :class:`.Relationship`
    with "lazy=True", that is loads when first accessed.

    )
_lazywhere_rev_lazywhereZ_lazyload_reverse_option	_order_byuse_getis_aliased_class_bind_to_col_equated_columns_rev_bind_to_col_rev_equated_columns_simple_lazy_clause_raise_always_raise_on_sqlzColumnElement[bool]r   zDict[str, ColumnElement[Any]]r   r   r   zRelationshipProperty[Any]rZ   zTuple[Any, ...])rH   r]   c                   s8  t  || | jd dk| _| jd dk| _t| jj| _| jj	}|
 \| _| _| _|j
dd\| _| _| _| jjrdd t| jjD | _nd | _| jd| | j | j o| j o| jjd	 j| jdd
| jjd| _| jr4t| jD ]4}|| jjv r| jj| D ]}| j| | j|< qq| jd|  d S )Nr   r   r   T)Zreverse_directionc                 S  s   g | ]}t |d diqS )
_orm_adaptT)sql_util_deep_annotater   elemr:   r:   r;   r     s   z'LazyLoader.__init__.<locals>.<listcomp>z%s lazy loading clause %sr   FZuse_proxiesZcompare_keysequivalentsz4%s will use Session.get() to optimize instance loads)rX   rY   r   r   r   r(   r   r   rZ   _join_conditionZcreate_lazy_clauser   r   r   r   r   r   order_byr   to_listr   loggerinfor>   _get_clauser   rN   _equivalent_columnsr   list)r\   rH   r]   Zjoin_conditionr   rh   r^   r:   r;   rY     sN    


zLazyLoader.__init__c              	   C  sv   d| _ | jj}| jjr d}d}n4| jjtjus4| jsL|rBd}d}qTd}d}nd }}t| j|d| j	| jj
||d d S )NTF)r@   rB   rA   rC   _deferred_history)r|   rZ   _legacy_inactive_history_stylerC   rM   r   	MANYTOONEr   rR   r   r   )r\   rN   r   rC   r   r:   r:   r;   r      s2    zLazyLoader.init_class_attributec                   sd   t | jddi}|| j } g dd }t|i d|i  fdd}t|i d|i}|fS )Nr   Tc                 S  s
   d| _ d S )NF)unique	bindparamr:   r:   r;   visit_bindparam+  s    zFLazyLoader._memoized_attr__simple_lazy_clause.<locals>.visit_bindparamr   c                   sF   | j  v r$| j | j  d f n| jd u rB| jd | jf d S r2   )Z_identifying_keyrF   r4   callablevaluer   Zbind_to_colparamsr:   r;   r   0  s    

)r   r   r   r   r+   traverseZcloned_traverse)r\   Z	lazywhere	criterionr   r:   r   r;   "_memoized_attr__simple_lazy_clause"  s    

z-LazyLoader._memoized_attr__simple_lazy_clausec                 C  s   | j \}}|d u r(t|dd |D S | jj}| }t|}|tj	@ rV|tj	N }i }|D ]J\}	}
}|
d ur|r|tj
@ r||||
|}n||||
|}|||	< q^||fS )Nc                 S  s   g | ]\}}}|qS r:   r:   )r   r4   identr   r:   r:   r;   r   G  r   z4LazyLoader._generate_lazy_clause.<locals>.<listcomp>)r   r   Zadapt_criterion_to_nullrZ   rH   objr
   instance_dictr   ZINIT_OKLOAD_AGAINST_COMMITTED#_get_committed_state_attr_by_column_get_state_attr_by_column)r\   r   r   r   Z
param_keysrN   or   r   r4   r   r   r:   r:   r;   _generate_lazy_clauseB  s,    




z LazyLoader._generate_lazy_clausec                 C  s   t d| |f d S )Nz&'%s' is not available due to lazy='%s'r   r   r:   r:   r;   r   b  s    
zLazyLoader._invoke_raise_loadNr:   c                 C  s  |j s | jjs|jr|js tjS |j  }d }	| jo>| p>|j }
|t	j
@ sN|
r\|tj@ sb|rbtjS | jr|t	j@ s|
r|t	j@ r| ||d t|}|s|t	j@ rtjS tdt|| j f |
r| |||}	tj|	v rtjS tj|	v rtjS | jjst|	r$d S nt|	r$d S | j |jv rD|t	j@ sDtj S |j!| j"|	||d}|d urx|tj#u rrd S |S n|t	j
@ r|t	j@ stjS | $|||	||||||	S )Nr   zbParent instance %s is not bound to a Session; lazy load operation of attribute '%s' cannot proceed)r   Zlazy_loaded_from)%r4   rZ   Zload_on_pendingZ_load_pendingZ
session_idr   r   r   r   r   r   r
   ZNON_PERSISTENT_OKr   r   NO_RAISEZRELATED_OBJECT_OKr   r!   r   r   r3   r   _get_ident_for_use_getZ	NEVER_SETrN   Zallow_partial_pksr$   r   
issupersetdictDEFERRED_HISTORY_LOADr   Z_identity_lookupr   ZPASSIVE_CLASS_MISMATCH_emit_lazyload)r\   r   r   rd   extra_criteriaextra_optionsalternate_effective_pathexecution_optionspendingprimary_key_identityr   r   instancer:   r:   r;   r   g  s    






zLazyLoader._load_for_statec                   sD   j j}tj@ r|jn|jj  fddjjD S )Nc                   s"   g | ]} j | d qS )r   r   r   pkr   Zget_attrr   r\   r   r:   r;   r     s   z5LazyLoader._get_ident_for_use_get.<locals>.<listcomp>)r   rN   r   r   r   r  r  r~   )r\   r   r   r   instance_mapperr:   r  r;   r    s    
z!LazyLoader._get_ident_for_use_getzsqlalchemy.orm.strategy_optionsc
                   s  t jj j }
tj|
g|
jtt	j
d}tj}|d|d7 } jjd ur\| j jj}|j }|sr|tj@ rt ddi|_ j}|js|r|jr|d u r|j j }n
| j }|j}|r|jrd}|t j|f7 }||_n$|d u r|jj j }n
| j }|r | j|7  _| jd|i7  _|rn jrZ|t j!@ sZ "||d t#j$|||||	dS  j%r~ j%|_& fdd	}| j'| jff7  _' (||\}}|	rt j)*|	d
|i}	nd
|i}	 j|j+v r|t j,@ st-j.S |rt /tj0|1 r,d S nt /tj2|1 r,d S  jrN|t j!@ sN "||d |f|_3|j4|||	d}|5 6 7 } j8r|S t9|}|r|dkrt :d j  |d S d S d S )N)_raw_columns_propagate_attrs_label_styler   F)Z_invoke_all_eagers_lazy_loaded_fromZ	autoflush_current_pathr   )load_optionsr  c                   sR    j jD ]D}|jtju r|jrt|jtsj	
| jj|j ||  qd S r2   )rZ   Z_reverse_propertyrM   r   r   Z_use_getr   r   r   r#   Z_construct_for_existing_pathr   r  rH   ZlazyloadZprocess_compile_state)compile_contextrevr\   strategy_optionsr:   r;   _lazyload_reverseB  s     

z4LazyLoader._emit_lazyload.<locals>._lazyload_reverseZ_sa_orm_load_options)r  r	   zKMultiple rows returned with uselist=False for lazily-loaded attribute '%s' r   );r   Z	preloadedZorm_strategy_optionsr   __clause_element__r-   _create_raw_selectr  r,   r   default_compile_optionsr   Zdefault_load_optionsrZ   Z	secondaryselect_fromrN   r4   r
   ZNO_AUTOFLUSHimmutabledict_execution_optionsr   r  r   Z	load_pathr3   LoaderCriteriaOption_with_options_path_registryr   r   r   r  r   r   Zload_on_pk_identityr   _order_by_clausesZ_with_context_optionsr  
EMPTY_DICT
merge_withr  r  r   r   Zhas_intersectionZ	_none_setvaluesZ
_never_setZ_where_criteriaexecuter   Zscalarsallr>   lenwarn)r\   r   r   r  r   rd   r
  r  r  r  Zclauseelementstmtr  r  r   effective_pathr9   r!  Zlazy_clauser   rl   lr:   r  r;   r	    s    







zLazyLoader._emit_lazyloadc	              
     s   | j  |jjr@|jjjr@| j |jjjv r@| ||||||||S | jrP|r|jrt	
|jt | ||jrp||nd  }	|d | j |	f n,|js|jr fdd}
|d | j |
f d S )Nr   c                   s   |  |  d S r2   )_resetr   r4   r:   r;   reset_for_lazy_callable  s    	z@LazyLoader.create_row_processor.<locals>.reset_for_lazy_callable)r4   r  Z_is_user_refreshr   r   r   r   r|   r   r"   Z"_instance_level_callable_processorrK   LoadLazyAttribute_generate_extra_criteriarF   populate_existingZalways_refresh)r\   rk   rb   rc   rd   rN   rl   re   rm   Zset_lazy_callabler8  r:   r7  r;   rn     sF    

zLazyLoader.create_row_processor)ro   rp   rq   rr   rs   __annotations__rY   r   r   r  r   r   r,  r   r  Zpreload_moduler	  rn   rt   r:   r:   r^   r;   r     s.   
	<"  	
w
 r   c                   @  s.   e Zd ZdZdd Zdd ZejfddZdS )	r9  a  semi-serializable loader object used by LazyLoader

    Historically, this object would be carried along with instances that
    needed to run lazyloaders, so it had to be serializable to support
    cached instances.

    this is no longer a general requirement, and the case where this object
    is used is exactly the case where we can't really serialize easily,
    which is when extra criteria in the loader option is present.

    We can't reliably serialize that as it refers to mapped entities and
    AliasedClass objects that are local to the current process, which would
    need to be matched up on deserialize e.g. the sqlalchemy.ext.serializer
    approach.

    c                 C  s   || _ |j| _|| _|| _d S r2   r4   r]   rd   r
  )r\   r4   Zinitiating_strategyrd   r
  r:   r:   r;   rY     s    zLoadLazyAttribute.__init__c                 C  s(   | j d urtd | j| j| jddS )NzvCan't reliably serialize a lazyload() option that contains additional criteria; please use eager loading for this caser:   r=  )r
  r   r2  r4   r]   rd   r   r:   r:   r;   __getstate__  s    
zLoadLazyAttribute.__getstate__c                 C  s:   | j }|jj}|j| }|j| j }|j||| j| jdS )N)rd   r
  )	r4   r   rN   rI   Z_strategiesr]   r   rd   r
  )r\   r   r   r4   r  r7   r   r:   r:   r;   r     s    
zLoadLazyAttribute.__call__N)	ro   rp   rq   rr   rY   r>  r
   r   r   r:   r:   r:   r;   r9    s   r9  c                   @  s   e Zd ZdZdZdddZdS )
PostLoaderz;A relationship loader that emits a second SELECT statement.r:   Nc                 C  sN  |j jptjj| }| }td|i}|rF|j	dd }|dk}	nd }d}	|d ur| j
jsrtd| j
 d|j	dt|  |}|	s|dk r|d||fS |	s|dt|  |d	 i}tj||| j
r|d||fS || j
 }
|| j
 }|
|jd
sB|r(|jd |krB|d||fS n|| jrB|d||fS |d||fS )NZsa_top_level_orm_contextrecursion_depthFz'recursion_depth option on relationship z0 not valid for non-self-referential relationshipZ_recursion_depth_r   r	   loaderr&   T)ra   current_pathr3   PathRegistryrootZ_get_top_level_contextr   r&  r   rJ   rZ   Z_is_self_referentialr   r   r  idunionr   PostLoadZpath_existscontainsr
   lengthcontains_mapperrN   )r\   rk   rc   rd   
join_depthr4  Ztop_level_contextr  r@  Zunlimited_recursionpath_w_propZeffective_path_w_propr:   r:   r;   _setup_for_recursion  sl    


zPostLoader._setup_for_recursion)N)ro   rp   rq   rr   rs   rN  r:   r:   r:   r;   r?    s   r?  r   c                      s8   e Zd ZdZ fddZdd Zdd Zdd	 Z  ZS )
ImmediateLoaderrL  c                   s   t  || | jj| _d S r2   rX   rY   rZ   rL  r[   r^   r:   r;   rY   W  s    zImmediateLoader.__init__c                 C  s   | j d| d S N)r   r   rZ   r   r   r   r:   r:   r;   r   [  s
    z$ImmediateLoader.init_class_attributec	                 C  sl   |j jjsd S | |||| j\}	}
}}|
s:tjtjB }ntj	tjB }t
j||	| j| j| j||||	 d S r2   )ra   r   _enable_eagerloadsrN  rL  r
   ZPASSIVE_NO_FETCH_RELATEDr   r  r   r   rH  callable_for_pathrH   rZ   _load_for_path)r\   rk   rb   rc   rd   rN   rl   re   rm   r4  
run_loaderr  r@  flagsr:   r:   r;   rn   `  s,    
z$ImmediateLoader.create_row_processorc	                 C  s   |r.t |jj}	|| f|	_| }
|	f}nd }	|}
d}| j}| jd}|D ]P\}}|j	}|sj||vrP|j
||||
|d}|ttjfvrP||||| qPd S )Nr:   rS  )r  r  r  )r#   rc   r   Z_recurserk   _truncate_recursiver4   rZ   r   r  r   r   r   r   get_implset_committed_value)r\   rk   rc   states	load_onlyrd   rY  r@  r  Znew_optr  r  r4   
lazyloaderr   	overwriter   r   r:   r:   r;   rW    s:    
zImmediateLoader._load_for_path)	ro   rp   rq   rs   rY   r   rn   rW  rt   r:   r:   r^   r;   rO  S  s
   *rO  subqueryc                      s   e Zd ZdZ fddZdd Zdd Zdd	 Zd
d Zdd Z	dd Z
dd ZG dd dZdd Zdd Zdd Zdd Z  ZS )SubqueryLoaderrP  c                   s   t  || | jj| _d S r2   rQ  r[   r^   r:   r;   rY     s    zSubqueryLoader.__init__c                 C  s   | j d| d S rR  rT  r   r:   r:   r;   r     s
    z#SubqueryLoader.init_class_attributec                   s   |}|j }t|d }| j|rB| j|d u rB| j| j  }n||d   }|r|j| jj| t	|t	 }|rt
j|| d  7 n||j}	 fdd|	D }
 |
|fS )Nr   r	   c                   s&   g | ]}t jd  j j| jqS r   )getattrrc   r   r   r4   r   leftmost_mapperZnew_subq_pathr:   r;   r     s
   

z0SubqueryLoader._get_leftmost.<locals>.<listcomp>)rc   r3   Z_class_to_mapperrH   isarZ   	_entitiesentity_zeror*  r1  r   rD  Zcoercelocal_columns)r\   orig_query_entity_index	subq_pathZcurrent_compile_stateis_rootZgiven_subq_pathZsubq_mapperZleftmost_prop
additionalZleftmost_colsleftmost_attrr:   re  r;   _get_leftmost  s4    
zSubqueryLoader._get_leftmostc                 C  s0  |  d }tjtj}|j|j |}|js`d|_|j	j
|gdd t||dD R   |dd |D | }	|	|_|j}
|
du rd|_n6|
d u rdd |	D D ]}t|	|jsd|_ qq|jsd	|_|jdu r|jrt|	|j}|r||	|  |t }tj||dd
}|S )NFc                 S  s    h | ]}|d  dur|d  qS )r   Nr:   )r   entr:   r:   r;   	<setcomp>  s   z?SubqueryLoader._generate_from_original_query.<locals>.<setcomp>)ra   c                 S  s   g | ]}t jt jj|qS r:   )r*   Z	coercionsexpectZrolesZColumnsClauseRole)r   r  r:   r:   r;   r   0  s   z@SubqueryLoader._generate_from_original_query.<locals>.<listcomp>Tc                 S  s   h | ]
}|j qS r:   )tabler   r:   r:   r;   rr  ?  r   r:   use_mapper_path)Z_cloneZ	correlater   Query__new____dict__updateZ	_from_objZ_enable_assertionsr%  Znon_generativer   Z_adapt_col_listZ_get_current_adapterr  distinct_target_keyZ	_distinctr   r  r~   Z_has_row_limiting_clauser+  r   Z expand_column_list_from_order_byZ_set_entitiesZset_label_styler,   ra  r3   r%   )r\   orig_compile_state
orig_queryrf  ro  leftmost_relationshipZorig_entityqq2Ztarget_colsr{  tZto_addZembed_q
left_aliasr:   r:   r;   _generate_from_original_query  sV    z,SubqueryLoader._generate_from_original_queryc                   s   g }t | }t|D ]N\}\}}|dkrR||d  d j}||rL|n|}	n|}	||	|jf qt|dk rz| n.t|d d }
|
j	r|
j
 ntj|
j
dd jj} fdd|D }|| fS )	Nr   r	   r&   rA  Tru  c                   s    g | ]}t  jj| jqS r:   )rd  rH   r   r4   r   parent_aliasr\   r:   r;   r     s   z2SubqueryLoader._prep_for_joins.<locals>.<listcomp>)r   pairs	enumeraterN   rg  rF   r4   r1  r(   r   r   r3   r%   rZ   rj  )r\   r  rl  to_joinr  irN   r7   Zprev_mapperZ	to_appendr   
local_cols
local_attrr:   r  r;   _prep_for_joins[  s*    zSubqueryLoader._prep_for_joinsc                 C  s0  t |}|dkr,t||d d |g}n|dkrft||d d |t||d d |g}n|dkrdd |dd D }g }|r|d}	t|	d |	d }
|r|
|d d }
n
|
|}
||
 qt||d d |d jg| t||d d |g }|D ]}
||
}q|S )Nr	   r   r&   rA  c                 S  s:   g | ]2}t |d  js$t|d  n|d  j|d fqS )r   r	   )r(   r   r3   r%   r   )r   itemr:   r:   r;   r     s   	z/SubqueryLoader._apply_joins.<locals>.<listcomp>)r1  rd  of_typepoprF   rH   join)r\   r  r  r  r  effective_entityZltjmiddleinnerr  attrr:   r:   r;   _apply_joins  sD    
	



zSubqueryLoader._apply_joinsc           	      C  sB   |j }|r*|jr*|t| j||f7 }||}|j| }|S r2   )r)  r   r3   r(  r   r:  Z_with_current_pathoptions)	r\   rk   r  rl  rewritten_pathr}  r  rd   new_optionsr:   r:   r;   _setup_options  s    
	

zSubqueryLoader._setup_optionsc                   s&    j jr" fdd}|| j }|S )Nc                   s    |  j tt jj7  _ d S r2   eager_order_bytupler   r   rZ   r   r  r   r:   r;   _setup_outermost_orderby  s    zISubqueryLoader._setup_outermost_orderby.<locals>._setup_outermost_orderby)rZ   r   _add_context_option)r\   r  r  r:   r   r;   r    s    z'SubqueryLoader._setup_outermost_orderbyc                   @  s4   e Zd ZdZdZdd Zdd Zdd Zd	d
 ZdS )zSubqueryLoader._SubqCollectionszGiven a :class:`_query.Query` used to emit the "subquery load",
        provide a load interface that executes the query at the
        first moment a value is needed.

        r   r  r  r   subq_datac                 C  s4   |j | _ |j| _|j| _|jp i | _|| _d | _d S r2   r  )r\   rk   r  r:   r:   r;   rY      s    z(SubqueryLoader._SubqCollections.__init__c                 C  s    | j d u r|   | j ||S r2   )r  _loadrJ   )r\   r4   defaultr:   r:   r;   rJ   
  s    
z#SubqueryLoader._SubqCollections.getc                 C  s   t t| _| j}|jd u s J || j}| jjr<|	 }t|
| j
}t|dd D ]"\}}| j| dd |D  q\d S )Nc                 S  s   | dd  S )Nr	   r:   xr:   r:   r;   r<     r   z7SubqueryLoader._SubqCollections._load.<locals>.<lambda>c                 s  s   | ]}|d  V  qdS )r   Nr:   r   vvr:   r:   r;   r     r   z8SubqueryLoader._SubqCollections._load.<locals>.<genexpr>)collectionsdefaultdictr   r  r  r   Zwith_sessionr  Z_populate_existingr;  r   	itertoolsgroupbyextend)r\   r  rowsr   vr:   r:   r;   r    s    z%SubqueryLoader._SubqCollections._loadc                 C  s   | j d u r|   d S r2   )r  r  )r\   r   r   r   r:   r:   r;   rB     s    
z&SubqueryLoader._SubqCollections.loaderN)	ro   rp   rq   rr   rs   rY   rJ   r  rB  r:   r:   r:   r;   _SubqCollections  s   	
r  c              	   C  s  |j }|jjr|jjrd S |j|}d|_|| j }||j	dd }	|	d urT|	}
n| j
}
|jjdtjjtjjf\}}|tjju }|| }|| }|jjdtf|j}t|d}|jr|jjd u rtd| |f  |j}|j|dd}| ||||\}}}}| ||||||}t|
}|jj|jdtf|d||fi|_|d}|  ||\}}}|j!| }| "|||||
}| #||||||
|}| $|}|S )	NTpath_with_polymorphic)Zsubquery_pathsNr}  ormzsubqueryloader for "%s" must invoke lambda callable at %r in order to produce a new query, decreasing the efficiency of caching for this statement.  Consider using selectinload() for more effective full-lambda cachingF)legacy)%ra   r   rU  Z_for_refresh_staterh  indexZloaders_require_bufferingrZ   rJ   r
   r   r   r'  r3   rD  rE  rb  r   Z_get_plugin_class_for_pluginZ_is_lambda_elementr  r  r   r2  Z	_resolvedZ_create_entities_collectionrp  r  rw  r-  r  Z_set_enable_single_critr  Zadd_columnsr  r  r  )r\   rk   rb   rc   r   rd   re   ra   rk  with_poly_entityr  rl  r  rm  r}  Zcompile_state_clsr|  rf  ro  r~  r  r  r  r  r  r:   r:   r;   _setup_query_from_rowproc$  s    	

	





	
z(SubqueryLoader._setup_query_from_rowprocc	              
     s  |r&|j jd ur&|j jjr&tdd |jrD| |||||| |S | |||| j\}	}
}	}	|
sfd S t	|j t
svd S | jj| j jjstd|  t|dkrt|j| jsd S nt|d | jsd S | ||||d | }|d u rd S |jd u sJ || j }| jj}||jd}|d u rH| ||}||jd|  r` fdd|D }| jr|| ||||| n|  ||||| d S )	NzThe subqueryload loader option is not compatible with DML statements such as INSERT, UPDATE.  Only SELECT may be used.This warning will become an exception in a future release.2.0J'%s' does not support object population - eager loading cannot be applied.r	   rA  r  c                   s   g | ]} j | qS r:   rV   r   re   r:   r;   r     r   z7SubqueryLoader.create_row_processor.<locals>.<listcomp>)!ra   	statementis_dmlr   warn_deprecatedr   r   rN  rL  r   r   rH   rK   r4   implsupports_populationr   r   r1  r3   _entity_isari  r  r   rZ   rj  rJ   r
   r  r   r>   _create_collection_loader_create_scalar_loader)r\   rk   rb   rc   rd   rN   rl   re   rm   _rX  r  r  r  r:   r  r;   rn     s    

		



z#SubqueryLoader.create_row_processorc                   sp   | | fddfdd}|d jf |d j|f |jrl|d j jf d S )Nc                   s*     |d}| j| || d S )Nr:   )rJ   r[  r4   r\  )r   r   r   
collectionr  r\   tuple_getterr:   r;   load_collection_from_subq  s    zKSubqueryLoader._create_collection_loader.<locals>.load_collection_from_subqc                   s   j |vr | || d S r2   r7  r   )r  r\   r:   r;   &load_collection_from_subq_existing_row  s    
zXSubqueryLoader._create_collection_loader.<locals>.load_collection_from_subq_existing_rowr   existingeagerZ_tuple_getterrF   r4   invoke_all_eagersrB  )r\   rk   rl   r  r  rm   r  r:   )r  r  r\   r  r;   r    s    
z(SubqueryLoader._create_collection_loaderc                   sp   | | fddfdd}|d jf |d j|f |jrl|d j jf d S )Nc                   sL     |d}t|dkr*td  |d }| j| || d S )Nr2   r	   LMultiple rows returned with uselist=False for eagerly-loaded attribute '%s' r   )rJ   r1  r   r2  r[  r4   r\  )r   r   r   r  Zscalarr  r:   r;   load_scalar_from_subq-  s    zCSubqueryLoader._create_scalar_loader.<locals>.load_scalar_from_subqc                   s   j |vr | || d S r2   r7  r   )r  r\   r:   r;   "load_scalar_from_subq_existing_row8  s    
zPSubqueryLoader._create_scalar_loader.<locals>.load_scalar_from_subq_existing_rowr   r  r  r  )r\   rk   rl   r  r  rm   r  r:   )r  r  r\   r  r;   r  (  s    
z$SubqueryLoader._create_scalar_loader)ro   rp   rq   rs   rY   r   rp  r  r  r  r  r  r  r  rn   r  r  rt   r:   r:   r^   r;   rb    s   1d/6"4 	erb  Zjoinedc                      s   e Zd ZdZdZ fddZdd Zd d	d
Zdd Zdd Z	dd Z
dd Zd!dddddZdd Zdd Zdd Zdd Z  ZS )"JoinedLoaderz[Provide loading behavior for a :class:`.Relationship`
    using joined eager loading.

    rL  c                   s   t  || | jj| _d S r2   rQ  r[   r^   r:   r;   rY   O  s    zJoinedLoader.__init__c                 C  s   | j d| d S rR  rT  r   r:   r:   r;   r   S  s
    z!JoinedLoader.init_class_attributeNFc	                 K  sx  |j jsdS |r0|jdur0|jjr0tdd n| jr<d|_|| j }d}
|r^| 	|||j
nd}|dur| |||||\}}}n`||j
ds| jr|jd | jkrdS n|| jrdS | ||||||||\}}}}d|_||j
dd}|dur
t|j}
nd}
|| j }tj|| j|||||
| j|d		 tj|j}|rt|durbtd
ndd |jD |_dS )z@Add a left outer join to the statement that's being constructed.NzThe joinedload loader option is not compatible with DML statements such as INSERT, UPDATE.  Only SELECT may be used.This warning will become an exception in a future release.r  TFrB  r&   r  )with_polymorphicparentmapperchained_from_outerjoinzDetected unaliased columns when generating joined load.  Make sure to use aliased=True or flat=True when using joined loading with with_polymorphic().c                 S  s   g | ]}|d ur|qS r2   r:   r   r:   r:   r;   r     s   z,JoinedLoader.setup_query.<locals>.<listcomp>)r   rU  r  r  r   r  r>   multi_row_eager_loadersrZ   _init_user_defined_eager_procr
   $_setup_query_on_user_defined_adapterrI  rL  rJ  rK  rN   _generate_row_adapterZeager_adding_joinsrJ   r(   Zwith_polymorphic_mappersr   r   Z_setup_entity_queryZNONE_SETr   secondary_columnsr   r   )r\   ra   rb   rc   rd   re   rf   r  r  rg   r  user_defined_adapterclausesadd_to_collectionr  Z	has_nonesr:   r:   r;   ri   X  s    



zJoinedLoader.setup_queryc           
      C  s   d|j vrdS |jj}||jdd}|dur2|S |j d }|dd  \}}|d urt|trj|j|}t	j
t	jj|j||jjdd}nF||jdr||jd}	t	j
t	jj|	|jjd}n|j|jd }||d| |S )NZeager_from_aliasF user_defined_eager_row_processor)
selectabler   Zlimit_on_entityr  )r   )r   rc   rH   rJ   r
   r   r   r   aliasr3   
ORMAdapter_TraceAdaptRoleZJOINEDLOAD_USER_DEFINED_ALIASrN   r   rI  Z JOINEDLOAD_PATH_WITH_POLYMORPHICZ_polymorphic_adaptersr   )
r\   rd   ra   Ztarget_attributesrc   re   r  Zroot_mapperr7   r  r:   r:   r;   r    sP    


z*JoinedLoader._init_user_defined_eager_procc                 C  sV   | |}|r.|r.||}||jd| n|rF|}||jd| |j}|||fS )Nr  )Z_get_entity_clauseswrapr   r
   primary_columns)r\   rk   r   rc   re   r  r  r:   r:   r;   r  	  s"    

z1JoinedLoader._setup_query_on_user_defined_adapterc	                 C  s  | |jdd }	|	r|	}
nDt| j}|jr2|j}nd }tj| j|d urR|j	ddnd ddd}
t|
}|j
d| ftjtjj|| jjdddd}|jsJ |d ur|j d| jjn| jj}|sd}|j| j||||||||r|jnd	f	 |j}||jd
| ||||fS )Nr  T)flat)r  r  rv  Zjoinedloader_ormadapterF)r   Zadapt_requiredZallow_label_resolveZanonymize_labels	innerjoinr:   eager_row_processor)rJ   r
   r(   r   r   r  r3   r%   rN   Z_anonymous_fromclauseZ_memor  r  ZJOINEDLOAD_MEMOIZED_ADAPTERr   r   rZ   r  Zcreate_eager_joinsrF   _create_eager_joinr   r  r   )r\   ra   r   rc   rd   re   rf   r  r  r  Zto_adaptZinspZalt_selectableZto_adapt_inspr  r  r  r:   r:   r;   r  ,	  sd    

z"JoinedLoader._generate_row_adapterc
              	     sb  |d u r|j }
n|}
|jo|j}d }||jvr~|s~|jr~t|j|j}t|dkr^t	
d|r~|j|d  }|d | }}|d u r||j }}|j||}|rt|ddr|j|
 jr|
n j}t|j j j}n ttj j|jdd j j}n j}|jsJ | p8| p8|dkp8|jj}|	}|jd	 j fd
}|rr|t fdd|D 7 }|rtj||j|| p|jjp|ot|tj j| j  |d}n  ||d ||||}||j|< |j|_!|s0t" jj#D ]4}|
j$j%&|r|r|j'| }|(||j) q jj*r^| j+t|j,-t./ jj*7  _+d S )Nr	   zCan't identify which query entity in which to joined eager load from.   Please use an exact match when specifying the join path.r   r   FTru  Zunnestedadditional_entity_criteriar:   c                 3  s    | ]}|j r| jV  qd S r2   )Zpropagate_to_loadersZ_resolve_where_criteriarN   )r   Zaer   r:   r;   r   	  s   z2JoinedLoader._create_eager_join.<locals>.<genexpr>isouter
_left_memo_right_memor   r  )0rN   r  Z_should_nest_selectableZeager_joinsZfrom_clausesr   Z#find_left_clause_that_matches_givenr  r1  r   r   
setdefaultrd  aliased_inspZ_entity_for_mapperrg  rH   r   r4   rZ   r3   r%   r   ri  Zrepresents_outer_joinZglobal_attributesrJ   r  _ORMJoinr   r*   ZJoin_splice_nested_inner_joinstop_onZ_find_columnsZprimaryjoinZpersist_selectablerh   Zcontains_columnrW   r`   r  r   r  _target_adapterZcopy_and_processr   r   )r\   ra   rb   rc   re   r  r  r  r  r
  r   Zshould_nest_selectableZquery_entity_keyZindexesZclauseZdefault_towrapZtowrapZefmonclauseZattach_on_outsideZextra_join_criteriar  	eagerjoinr   r:   r   r;   r  {	  s    

	




zJoinedLoader._create_eager_joinz#Union[Mapper, None, Literal[False]]z$Optional[path_registry.PathRegistry]entity_inside_join_structuredetected_existing_pathc	              
   C  s  ||d u sJ |du r(t |tjs(J t |tjjrN| |||j||||S t |tjrB|j}	| j|||j	||||	d ur|	d j
nd d}
|
d ur|js|
js||
}ntj|j|
|j|j|jd}|
j|_|S | j|||j||||j|	d}
|
d ur&tj|
|j	|j|j|jd}|
j|_|S |du r>ds>J dd S ||sRd S |rt|d	kr|d
 |u sxJ |dd |jdd krd S tj||j|d|||d j
 |dS )Nr  FrA  )r  )r  r  r  )r  r  z9assertion failed attempting to produce joined eager loadsr&   r   r  )r   r3   r  r*   r  ZFromGroupingr  elementr  rightrN   r  Z_splice_into_centerleftr  r  r  rg  r1  rc   r  )r\   rc   Zentity_we_want_to_splice_ontoZjoin_objr  r  r
  r  r  Zjoin_right_pathZtarget_joinr  r:   r:   r;   r  
  s    	

$z&JoinedLoader._splice_nested_inner_joinc           	      C  s   |j }|r| |||jnd}|durP|}|jrB|rB||j}qj|jrj|j}n||jd}|d u rjdS | j||r||S dS d S )NFr  )ra   r  r
   Zcompound_eager_adapterr  rJ   rN   Z_result_has_identity_key)	r\   rk   rl   re   rc   rd   ra   r  	decoratorr:   r:   r;   _create_eager_adapter
  s.    
z"JoinedLoader._create_eager_adapterc	              
   C  s   |j jjsd S | jj| j jjs.t	d|  | j
r:d|_|| j }	| ||||	|}
|
dur| j}t|| j|||	| j |
}| j
s| |||| q| |||| n | jd|||||||| d S )Nr  TFrS  )ra   r   rU  rH   rK   r4   r  r  r   r   r>   Zloaders_require_uniquingrZ   r  r   Z_instance_processorrN   r   r  r  r   rn   )r\   rk   rb   rc   rd   rN   rl   re   rm   Zour_pathZeager_adapterr4   	_instancer:   r:   r;   rn   
  sR    


	z!JoinedLoader.create_row_processorc                   sr    fdd} fdd} fdd}|d  | j|f |d  | j|f jrn|d	  | j|f d S )
Nc                   sF   t | |}t|d}|j | f<  |}|d urB|| d S NZappend_without_eventr
   r   r   ZUniqueAppenderrF   )r   r   r   r  result_listinstr  rk   r4   r:   r;   #load_collection_from_joined_new_row*  s    zSJoinedLoader._create_collection_loader.<locals>.load_collection_from_joined_new_rowc                   sd   | fj v rj | f }n(t | |}t|d}|j | f<  |}|d ur`|| d S r  r  )r   r   r   r   r  r  r  r:   r;   (load_collection_from_joined_existing_row7  s    zXJoinedLoader._create_collection_loader.<locals>.load_collection_from_joined_existing_rowc                   s    | d S r2   r:   r   r  r:   r;    load_collection_from_joined_execJ  s    zPJoinedLoader._create_collection_loader.<locals>.load_collection_from_joined_execr   r  r  rF   r4   r  )r\   rk   r4   r  rm   r  r  r  r:   r  r;   r  )  s    z&JoinedLoader._create_collection_loaderc                   sp    fdd} fdd} fdd}|d  j|f |d  j|f |jrl|d	  j|f d S )
Nc                   s    ||< d S r2   r:   r   )r  r4   r:   r;   load_scalar_from_joined_new_rowY  s    zKJoinedLoader._create_scalar_loader.<locals>.load_scalar_from_joined_new_rowc                   s8    |}|v r,|| ur4t d  n||< d S )Nr  )r   r2  )r   r   r   r  r  r4   r\   r:   r;   $load_scalar_from_joined_existing_row^  s    	zPJoinedLoader._create_scalar_loader.<locals>.load_scalar_from_joined_existing_rowc                   s    | d S r2   r:   r   r  r:   r;   load_scalar_from_joined_execq  s    zHJoinedLoader._create_scalar_loader.<locals>.load_scalar_from_joined_execr   r  r  r  )r\   rk   r4   r  rm   r  r
  r  r:   r	  r;   r  X  s    z"JoinedLoader._create_scalar_loader)NNF)FN)ro   rp   rq   rr   rs   rY   r   ri   r  r  r  r  r  r  rn   r  r  rt   r:   r:   r^   r;   r  D  s,      
 9O *   .$>/r  Zselectinc                      st   e Zd ZdZedg dZdZ fddZdd Z	d	d
 Z
dd Zdd Zdd Zdd Zdd Zdd Z  ZS )SelectInLoader)rL  	omit_join_parent_alias_query_info_fallback_query_infoZ	queryinfo)load_only_childload_with_joinin_exprpk_colszero_idxchild_lookup_colsi  c                   s   t  || | jj| _| jjtju }| jjd ur>| jj| _n<| jd}|rX|j	| _n"| j
jd j|jdd| j
jd| _| jr|r|  | _|  | _q|  | _n
|  | _d S )NrS  r   TFr   )rX   rY   rZ   rL  rM   r   r   r  r   r   rH   r   r   r   r   _init_for_omit_join_m2or  _init_for_joinr  _init_for_omit_join)r\   rH   r]   Zis_m2or_  r^   r:   r;   rY     s,    


zSelectInLoader.__init__c                   s   t jjj   fddt D   fddjjD  }}t|dkrbt	j
| }d}n|d }d}dd|||d S )	Nc                 3  s0   | ](}j j|d D ]}| | fV  qqdS )r:   N)rH   r   rJ   )r   r   equivpk_to_fkr\   r:   r;   r     s   z5SelectInLoader._init_for_omit_join.<locals>.<genexpr>c                   s   g | ]}| v r | qS r:   r:   r   r   )r  r:   r;   r     s   z6SelectInLoader._init_for_omit_join.<locals>.<listcomp>r	   Fr   T)r  rZ   r   Zlocal_remote_pairsrz  r   rH   r~   r1  r*   tuple_
query_info)r\   r  Zfk_colsr  r  r:   r  r;   r    s    


z"SelectInLoader._init_for_omit_joinc                   sb   | j j}t|dkr$tj| }d}n|d }d}| jd  fdd|D }| dd||||S )Nr	   Fr   TrS  c                   s   g | ]} j | qS r:   r  r  r_  r:   r;   r     r   z:SelectInLoader._init_for_omit_join_m2o.<locals>.<listcomp>)rN   r~   r1  r*   r  rZ   r   r  )r\   r  r  r  Zlookup_colsr:   r   r;   r    s    
z&SelectInLoader._init_for_omit_join_m2oc                   sj   t | jj| _t| j  fdd| jjD }t|dkrJtj| }d}n|d }d}| 	dd|||d S )Nc                   s   g | ]}  |qS r:   _adapt_elementr  Zpa_inspr:   r;   r     s   z1SelectInLoader._init_for_join.<locals>.<listcomp>r	   Fr   T)
r%   rH   rL   r  r(   r~   r1  r*   r  r  )r\   r  r  r  r:   r#  r;   r    s    


zSelectInLoader._init_for_joinc                 C  s   | j d| d S rR  rT  r   r:   r:   r;   r     s
    z#SelectInLoader.init_class_attributec	                 C  s  |j r| ||||||||S | j|||| jd\}	}
}}|
sBd S |jjjsPd S | jj| j	 j
jsptd|  t|dkrt|j| jsd S nt|d | jsd S |	}|| j }||jdd }|d urt|}n| j}tj||| j| j| j||||	 d S )NrP  r  r	   rA  r  )r   r   rN  rL  ra   r   rU  rH   rK   r4   r  r  r   r   r1  r3   r  ri  rZ   rJ   r
   r(   r   r   rH  rV  rW  )r\   rk   rb   rc   rd   rN   rl   re   rm   r4  rX  r  r@  Zselectin_pathrM  r  r  r:   r:   r;   rn     sj    

	

z#SelectInLoader.create_row_processorc	                   s  |rj |vrd S j}	|	jrtt}
g }j|D ]l\}jtfdd|	j	D }t
j|v rtj}	 qd |vr|
| |f q6||f q6|	jsdd |D }
|	j}|	j}|	jsjrfdd|D }|}tjdg|R  }| } }tj||gttjddd	}|	js@|}n$|jtjjj  }|!|"t#$d
} j%j&}|j }| j'u r|j(}n&|j(} j'j(} fddt)||D }|r|j*r|t+|, f7 }|d ur|- }|j.| }|/d|i} j0r*|j1dd}jj2r|	jsjjj2}jr^fdd|D }|j2| }nfdd}|3|j}|	jr4|
||	| | n5|
|	| | d S )Nc                 3  s"   | ]} j |tjd V  qdS )r  N)r  r
   ZPASSIVE_NO_FETCH)r   Zlk)rN   r   
state_dictr:   r;   r   V  s   z0SelectInLoader._load_for_path.<locals>.<genexpr>c                 S  s$   g | ]\}}|j d  ||j|fqS )r	   )r4   r  )r   r   r`  r:   r:   r;   r   s  s   z1SelectInLoader._load_for_path.<locals>.<listcomp>c                   s   g | ]}  |qS r:   r!  r  r  r:   r;   r     s   r  r  )Zcompile_state_pluginZplugin_subject)r  r  r   r  primary_keysc                   s   g | ]\}}|  |qS r:   )Z'_adapt_cached_option_to_uncached_option)r   Zorig_optZuncached_opt)rk   r:   r;   r     s   r  T)r;  c                   s   g | ]}  |qS r:   r!  r   r%  r:   r;   r     s   c                   s    |  j tt jj7  _ d S r2   r  r  r   r:   r;   r    s    z?SelectInLoader._load_for_path.<locals>._setup_outermost_orderby)6r4   r  r  r  r  r   rH   r  r  r  r   r   r  rF   r  r  r  r   r"  r3   ZBundler"  r-   r#  r,   r   r$  r%  r  r  rd  rZ   r  filterZin_r*   r   ra   Zselect_statementZuser_passed_queryr)  zipr   r(  r:  rZ  r  Z_update_compile_optionsr;  r  r   r  _load_via_child_load_via_parent)r\   rk   rc   r]  r^  r  rd   r@  r  r  
our_statesnone_statesr`  Zrelated_identr  r  Z
bundle_entZ
bundle_sqlZ
entity_sqlr  r}  r4  r  Zcached_optionsZuncached_optionsr  r  r:   )rk   r  rN   r\   r   r$  r;   rW  >  s    






	



	
zSelectInLoader._load_for_pathc                   s   | j }t|}|r|d| j }	|| jd  }dd |jj|d fdd|	D i|d D }
|	D ]T}|
|d }|| D ]:\}}}|s| j|v rq||| j	|||s|n|g q|qdq|D ]0\}}}|s| j|v rq|| j	||d  qd S )Nr   c                 S  s   i | ]\}}||qS r:   r:   )r   r   r  r:   r:   r;   
<dictcomp>!  s   z2SelectInLoader._load_via_child.<locals>.<dictcomp>r&  c                   s   g | ]} j r|d  n|qS rc  r  )r   r4   r  r:   r;   r   &  s   z2SelectInLoader._load_via_child.<locals>.<listcomp>r   r  )
r>   sorted
_chunksizer   r/  r   rJ   r4   r[  r\  )r\   r+  r,  r  r  rk   r  r>   Zour_keyschunkdatar4   Zrelated_objr   r   r`  r:   r/  r;   r)    s:    	
zSelectInLoader._load_via_childc                   s$  | j }|rdnd }|r |d| j }|| jd  } fdd|D }	tt}
t|jj|d|	i|d	 dd D ] \}}|
| 
d	d
 |D  qv|D ]\}}}}|s| j|v rq|
||}|s|rt|dkrtd|   || j|||d  q|| j||| qqd S )Nr:   r   c                   s&   g | ]\}}}} j r|d  n|qS rc  r.  )r   r4   r   r$  r`  r/  r:   r;   r   R  s   
z3SelectInLoader._load_via_parent.<locals>.<listcomp>r&  r0  c                 S  s   | d S ry   r:   r  r:   r:   r;   r<   ^  r   z1SelectInLoader._load_via_parent.<locals>.<lambda>c                 s  s   | ]}|d  V  qdS )r	   Nr:   r  r:   r:   r;   r   `  r   z2SelectInLoader._load_via_parent.<locals>.<genexpr>r	   r  )r>   r2  r  r  r   r  r  r   r/  r   r  r4   rJ   r1  r   r2  r[  r\  )r\   r+  r  r  rk   r  r>   Z_empty_resultr3  r&  r4  r   r  r4   r   r$  r`  r  r:   r/  r;   r*  H  sF    


zSelectInLoader._load_via_parent)ro   rp   rq   rs   r  
namedtupler  r2  rY   r  r  r  r   rn   rW  r)  r*  rt   r:   r:   r^   r;   r  ~  s    P T7r  c                   sT   fdd  fdd} fdd}t j| d|dddd	 t j| d
|dddd	 d S )Nc                   sT   |d urP|j  j krP|t|}|rP||urPtjdt|| j f dd|S )NzsInstance %s is already associated with an instance of %s via its %s attribute, and is only allowed a single parent.Zbbf1)code)	r4   	hasparentr
   Zinstance_stater   r   r3   Zinstance_strrL   )r   r   oldvalue	initiatorr7  )r7   r:   r;   	_do_check{  s    z*single_parent_validator.<locals>._do_checkc                   s    | |d |S r2   r:   )r   r   r9  r:  r:   r;   rF     s    z'single_parent_validator.<locals>.appendc                   s    | |||S r2   r:   )r   r   r8  r9  r;  r:   r;   set_  s    z%single_parent_validator.<locals>.set_rF   T)rawretvalrC   r   )r'   listen)r6   r7   rF   r<  r:   )r:  r7   r;   rG   z  s    rG   )NNNNFN)Wrr   
__future__r   r  r  typingr   r   r   r   r   r    r
   r   r   r   r   r   r   r   r   r   r   r3   baser   r   r   r   r   r   r   rk   r   r   r   r   r   r    r   r!   r   r"   r   r#   r$   r%   r'   r   r(   r)   r*   r   r+   Zsql.selectabler,   r-   Zutil.typingr.   rN   r/   r0   Zsql.elementsr1   rR   ZColumnPropertyZstrategy_forrU   Zclass_loggerru   r   r   r   r   r   r   ZMemoizedSlotsZ
Identifiedr   r9  r?  rO  rb  r  r  rG   r:   r:   r:   r;   <module>
   s         
Q+ZW 0%
&

    24Ld           =   }