o
    [hܵ                     @   s   d 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 G dd deZG dd deZG dd deZG dd deZG dd deZeee
ee	eiZdS )zRelationship dependencies.

   )
attributes)exc)sync)
unitofwork)util)
MANYTOMANY)	MANYTOONE)	ONETOMANY   )sqlc                   @   s   e Zd Zdd Ze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dd Zdd Zdd Zdd Zd%ddZd d! Zd"d# Zd$S )&DependencyProcessorc                 C   s   || _ |j| _|j| _|j| _|j| _|j| _|j| _|j| _|j| _|j	| _	| jr/t
j| _nt
j| _| jr;t
j| _nt
j| _|j| _| j jsOtd| j  d S )Nz|Can't build a DependencyProcessor for relationship %s. No target attributes to populate between parent and child are present)propcascademapperparent	secondary	directionpost_updatepassive_deletespassive_updatesenable_typechecksr   PASSIVE_NO_INITIALIZE_passive_delete_flagPASSIVE_OFF_passive_update_flagkeysynchronize_pairssa_excArgumentError)selfr    r    /home/ubuntu/experiments/live_experiments/Pythonexperiments/Otree/venv/lib/python3.10/site-packages/sqlalchemy/orm/dependency.py__init__   s0   

zDependencyProcessor.__init__c                 C   s   t |j |S N)_direction_to_processorr   )clsr   r    r    r!   from_relationship6   s   z%DependencyProcessor.from_relationshipc                 C   s   | j j| j|S )zreturn True if the given object instance has a parent,
        according to the ``InstrumentedAttribute`` handled by this
        ``DependencyProcessor``.

        )r   Zclass_managerget_implr   	hasparentr   stater    r    r!   r(   :   s   zDependencyProcessor.hasparentc                 C   s   | | d dS )zestablish actions and dependencies related to a flush.

        These actions will operate on all relevant states in
        the aggregate.

        TN)register_preprocessorr   uowr    r    r!   per_property_preprocessorsB   s   z.DependencyProcessor.per_property_preprocessorsc              	   C   sz   t || dd}t || dd}t || jj}t || jj}t || jj}t || jj}| ||||||| d S NFT)r   
ProcessAllSaveUpdateAllr   primary_base_mapperr   	DeleteAllper_property_dependencies)r   r-   
after_savebefore_deleteparent_saveschild_savesparent_deleteschild_deletesr    r    r!   per_property_flush_actionsK   s.   z.DependencyProcessor.per_property_flush_actionsc                 C   s  | j j}t||}t||}|rt|| dd}d|_nt|| dd}d|_||jvr@||jvs5J |df|dfg}	d}
nd}
|sXt|| jj	}d }}||jv rWd}nt|| jj	}d }}||jv rkd}|D ]}|j
| j j||j|r~| jntj}|sqm|rt|| d|}|rt||}nt|| d|}|rt||}|
rg }	|D ]+\}}||jvrd}n|j| \}}|rt||df}nt||df}|	| q|	D ]\}}| |||||||| qqmdS )zestablish actions and dependencies related to a flush.

        These actions will operate on all relevant states
        individually.    This occurs only if there are cycles
        in the 'aggregated' version of events.

        TFN)NN)r   r2   r   r1   r3   r0   disabledZcyclesr   base_mappermanagerr   implZget_all_pendingdictr   r   r   ZProcessStateZDeleteStateZSaveUpdateStatestatesappendper_state_dependencies)r   r-   rA   isdeleteZchild_base_mapperr8   r:   r6   r5   Zchild_actionsZchild_in_cyclesr7   r9   Zparent_in_cyclesr*   Zsum_Zchild_statechildchild_actiondeletedZlistonlychildisdeleter    r    r!   per_state_flush_actionsg   s   	





z+DependencyProcessor.per_state_flush_actionsc                 C      dS NFr    r   	uowcommitrA   r    r    r!   presort_deletes      z#DependencyProcessor.presort_deletesc                 C   rJ   rK   r    rL   r    r    r!   presort_saves   rO   z!DependencyProcessor.presort_savesc                 C      d S r#   r    rL   r    r    r!   process_deletes   rO   z#DependencyProcessor.process_deletesc                 C   rQ   r#   r    rL   r    r    r!   process_saves   rO   z!DependencyProcessor.process_savesc                 C   sp   |r| j r	tj}n| jtu rtj}ntj}|D ]}||| j|}|r*|	 s* dS q|o7| j
j o7| j|jv S )NT)r   r   r   r   r   ZPASSIVE_NO_FETCH_RELATEDr   get_attribute_historyr   emptyr   Z_is_self_referentialr   Zmappers)r   rM   rA   rD   passiveshistoryr    r    r!   prop_has_changes   s   


z$DependencyProcessor.prop_has_changesc                 C   s   | j jr|d u rtd| j f |d urG| jj|| j dsI| jj|ddr8td|j| j | jj| jd td|j| j | jjd d S d S )Nz-Can't flush None value found in collection %s)Zallow_subtypesTaE  Attempting to flush an item of type %(x)s as a member of collection "%(y)s". Expected an object of type %(z)s or a polymorphic subclass of this type. If %(x)s is a subclass of %(z)s, configure mapper "%(zm)s" to load this subtype polymorphically, or set enable_typechecks=False to allow any subtype to be accepted for flush. )xyzZzmzAttempting to flush an item of type %(x)s as a member of collection "%(y)s". Expected an object of type %(z)s or a polymorphic subclass of this type.)rZ   r[   r\   )r   uselistr   Z
FlushErrorr   Z_canloadr   class_r)   r    r    r!   _verify_canload   s8   
z#DependencyProcessor._verify_canloadc                 C      t  r#   NotImplementedError)r   r*   rE   associationrow	clearkeysrM   r    r    r!   _synchronize"     z DependencyProcessor._synchronizec                 C   s>   | j jsd S tt| jgdd | j jD  }|d|ftS )Nc                 S   s   g | ]}|j qS r    )r   ).0pr    r    r!   
<listcomp>*  s    zCDependencyProcessor._get_reversed_processed_set.<locals>.<listcomp>Zreverse_key)r   _reverse_propertytuplesortedr   memoset)r   r-   Zprocess_keyr    r    r!   _get_reversed_processed_set%  s   z/DependencyProcessor._get_reversed_processed_setFc                 C   s:   |D ]}|r
|d ur| |dd | jjD   d S qd S )Nc                 S   s   g | ]\}}|qS r    r    )rg   lrr    r    r!   ri   2  s    z4DependencyProcessor._post_update.<locals>.<listcomp>)Zregister_post_updater   r   )r   r*   rM   relatedis_m2o_deleterZ   r    r    r!   _post_update.  s   z DependencyProcessor._post_updatec                 C   r`   r#   ra   r   rM   r*   r    r    r!   _pks_changed6  rf   z DependencyProcessor._pks_changedc                 C   s   d| j j| jf S )Nz%s(%s))	__class____name__r   )r   r    r    r!   __repr__9  s   zDependencyProcessor.__repr__N)F)rx   
__module____qualname__r"   classmethodr&   r(   r.   r;   rI   rN   rP   rR   rS   rY   r_   re   ro   rt   rv   ry   r    r    r    r!   r      s&    
	p)
	r   c                   @   sL   e Z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
dS )OneToManyDPc           
   
   C   s   | j r/t|| jjd}t|| jjd}	|j||f||f||f||	f|	|f|	|fg d S |j||f||f||f||f||f||f||fg d S r/   r   r   PostUpdateAllr   r2   dependenciesupdate)
r   r-   r7   r8   r9   r:   r5   r6   child_post_updateschild_pre_updatesr    r    r!   r4   >  s4   


z%OneToManyDP.per_property_dependenciesc	                 C   s   | j rVt|| jjd}	t|| jjd}
|s8|r'|j||f||	fg d S |j||f||f||	fg d S |rH|j||
f|
|fg d S |j||
f|
|fg d S |si|j||f||f||fg d S |j||f||fg d S r/   r~   )r   r-   save_parentdelete_parentrF   r5   r6   rD   rH   r   r   r    r    r!   rC   g  sR   

z"OneToManyDP.per_state_dependenciesc                 C   s   | j j o
| jdk }|D ]D}||| j| j}|rQ|jD ]}|d ur;| |du r;| j jr6|j	|dd q|	| q|rQ|j
D ]}|d urP|j	|d| jd qAqd S )NallFTrD   delete	operationr   )r   r   r   rT   r   r   rG   r(   delete_orphanregister_object	unchangedr   r   rM   rA   should_null_fksr*   rX   rE   r    r    r!   rN     s*   



zOneToManyDP.presort_deletesc              	   C   sN  | d| ft}| jj o| jdk }|D ]}| ||}|r"| jr&tj}ntj	}|
|| j|}|r|jD ]}	|	d urF|j|	dd| jd q6||j |jD ]9}	| jjsc|rb|j|	dd| jd qP| |	du r|j|	dd| jd | jd|	D ]\}
}}}|j|dd	 q{qP|r|r|jD ]}	|	d ur|j|	d| jd
| jd qqd S )Nchildren_addedr   Tadd)Zcancel_deleter   r   Fr   rD   r   r   r   z	pk changer   )rm   rn   r   r   r   rv   r   r   r   r   rT   r   addedr   r   r   rG   r(   r   cascade_iteratorr   )r   rM   rA   r   r   r*   pks_changedrV   rX   rE   cmst_dct_r    r    r!   rP     sp   





zOneToManyDP.presort_savesc              
   C   s   | j s| jdksu|d| ft}|D ]d}||| j| j}|rt|jD ]$}|d urF| |du rF| 	||d d|d | j rF|rF| 
|||g q"| j sN| jjstt|j|D ]}|d urs| 	||d d|d | j rs|rs| 
|||g qVqd S d S )Nr   r   FT)r   r   rm   rn   rT   r   r   rG   r(   re   rt   r   r   r   
difference)r   rM   rA   r   r*   rX   rE   r    r    r!   rR     s>   




zOneToManyDP.process_deletesc              
   C   s   | j j o
| jdk }|D ]]}||| jtj}|rj|jD ]}| ||d d|d |d ur8| j	r8| 
|||g q|jD ]}|rS| j jsS| |sS| ||d d|d q<| ||rj|jD ]}| ||d d|d q]qd S )Nr   FT)r   r   r   rT   r   r   r   r   re   r   rt   rG   r(   rv   r   r   r    r    r!   rS   /  sB   





zOneToManyDP.process_savesc           	   	   C   sr   |}|}|  | |d u s| js||rd S |r%t|| j| jj d S t|| j	|| j| jj|| j
o5| d S r#   )r_   r   
is_deletedr   clearr   r   r   populater   r   )	r   r*   rE   rc   rd   rM   r   sourcedestr    r    r!   re   Q  s(   
zOneToManyDP._synchronizec                 C      t ||| j| jjS r#   r   source_modifiedr   r   r   ru   r    r    r!   rv   h     zOneToManyDP._pks_changedN)rx   rz   r{   r4   rC   rN   rP   rR   rS   re   rv   r    r    r    r!   r}   =  s    )C>,"r}   c                   @   sP   e Z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dZ
dS )ManyToOneDPc                 C   s.   t | | | jjD ]
}|jt| q
d S r#   )r   r"   r   Zself_and_descendantsZ_dependency_processorsrB   DetectKeySwitch)r   r   r   r    r    r!   r"   o  s   zManyToOneDP.__init__c           
   
   C   s   | j r2t|| jjd}t|| jjd}	|j||f||f||f||	f||	f|	|f|	|fg d S |j||f||f||f||fg d S r/   r   r   r   r   r2   r   r   )
r   r-   r7   r8   r9   r:   r5   r6   parent_post_updatesparent_pre_updatesr    r    r!   r4   t  s0   

z%ManyToOneDP.per_property_dependenciesc	                 C   s   | j rI|s/t|| jjd}	|r|j||	f|	|fg d S |j||f||f||	fg d S t|| jjd}
|j||
f|
|f|
|fg d S |sf|s[|j||f||fg d S |j||fg d S |rs|j||fg d S d S r/   r   )r   r-   r   r   rF   r5   r6   rD   rH   r   r   r    r    r!   rC     sF   

z"ManyToOneDP.per_state_dependenciesc                 C   s   | j js| j jrP|D ]G}||| j| j}|rO| j jr | }n| }|D ](}|d u r-q&|j|dd| j	d | j
d|}|D ]\}}	}
}|j|
dd q@q&q
d S d S )NTr   r   r   )r   r   r   rT   r   r   sumZnon_deletedr   r   r   r   )r   rM   rA   r*   rX   ZtodeleterE   tr   r   r   r   r    r    r!   rN     s2   

zManyToOneDP.presort_deletesc                 C   s   |D ]H}|j |d| jd | jjrJ||| j| j}|rJ|jD ]*}| |du rI|j |dd| jd | j	
d|}|D ]\}}}	}
|j |	dd q;qqd S )Nr   r   FTr   r   r   )r   r   r   r   rT   r   r   rG   r(   r   r   )r   rM   rA   r*   rX   rE   r   r   r   r   r   r    r    r!   rP     s(   

zManyToOneDP.presort_savesc                 C   sz   | j r5| jjs7| jdks9|D ],}| |d d d| |r4| j r4||| j| j}|r4| j|||	 dd qd S d S d S d S )Nr   T)rs   )
r   r   r   r   re   rT   r   r   rt   r   )r   rM   rA   r*   rX   r    r    r!   rR     s&   


zManyToOneDP.process_deletesc              
   C   s~   |D ]:}| || jtj}|r<|jr#|jD ]}| ||d d|d qn|jr0| |d d d|d | jr<| |||	  qd S )NFr   Tr   )
rT   r   r   r   r   re   rG   r   rt   r   )r   rM   rA   r*   rX   rE   r    r    r!   rS     s&   

zManyToOneDP.process_savesNc              	   C   s   |d u s| j s||rd S |d ur,|d ur,|j|s,tdt||| jf  d S |s2|d u r>t	
|| j| jj d S | | t	|| j|| j| jj|d d S )NGObject of type %s not in session, %s operation along '%s' won't proceedF)r   r   session_contains_stater   warn
mapperutilstate_class_strr   r   r   r   r   r_   r   r   r   r*   rE   rc   rd   rM   r   r    r    r!   re   *  s8   	

zManyToOneDP._synchronizer#   )rx   rz   r{   r"   r4   rC   rN   rP   rR   rS   re   r    r    r    r!   r   n  s    (:r   c                   @   sh   e Zd Z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dd Zdd Zdd ZdS )r   a  For many-to-one relationships with no one-to-many backref,
    searches for parents through the unit of work when a primary
    key has changed and updates them.

    Theoretically, this approach could be expanded to support transparent
    deletion of objects referenced via many-to-one as well, although
    the current attribute system doesn't do enough bookkeeping for this
    to be efficient.

    c                 C   s<   | j jr| jr	d S ddd | j jD v rd S || d d S )NFc                 s   s    | ]}|j V  qd S r#   )r   )rg   r   r    r    r!   	<genexpr>d  s
    
z=DetectKeySwitch.per_property_preprocessors.<locals>.<genexpr>)r   rj   r   r+   r,   r    r    r!   r.   _  s   z*DetectKeySwitch.per_property_preprocessorsc                 C   s6   t || jj}t || dd}|j||fg d S rK   )r   r1   r   r=   r0   r   r   )r   r-   r7   r5   r    r    r!   r;   l  s   z*DetectKeySwitch.per_property_flush_actionsc                 C   rQ   r#   r    )r   r-   rA   rD   r    r    r!   rI   q  rO   z'DetectKeySwitch.per_state_flush_actionsc                 C   rQ   r#   r    rL   r    r    r!   rN   t  rO   zDetectKeySwitch.presort_deletesc                 C   s   | j s| || d S d S r#   r   _process_key_switches)r   r-   rA   r    r    r!   rP   w  s   zDetectKeySwitch.presort_savesc                 C   s"   |s| j r| ||}t|S dS rK   )r   _key_switchersbool)r   r-   rA   rD   dr    r    r!   rY   }  s   
z DetectKeySwitch.prop_has_changesc                 C   s   J r#   r    rL   r    r    r!   rR     rO   zDetectKeySwitch.process_deletesc                 C   s   | j sJ | || d S r#   r   rL   r    r    r!   rS     s   
zDetectKeySwitch.process_savesc                 C   sZ   | d| fdd \}}||}|D ]}||vr*| ||r%|| q|| q|S )NZpk_switchersc                   S   s   t  t  fS r#   )rn   r    r    r    r!   <lambda>  s    z0DetectKeySwitch._key_switchers.<locals>.<lambda>)rm   unionrv   r   )r   r-   rA   ZswitchedZnotswitchedZ	allstatesrW   r    r    r!   r     s   

zDetectKeySwitch._key_switchersc           	   
   C   s   |  ||}|rb|jj D ]U}t|j| jjsq|j}|| j	j
||| jd}|tjura|d ura| jjr>|s9q|d }n|}t|}||v ra||d| j t|| j|| j| jj|| j qd S d S )N)rV       F)r   r   Zidentity_mapZ
all_states
issubclassr^   r   r@   r'   r   getr   r   ZPASSIVE_NO_RESULTr   r]   Zinstance_stater   r   r   r   r   r   )	r   ZdeplistrM   Z	switchersr*   Zdict_rr   Zrelated_objZrelated_stater    r    r!   r     sB   


z%DetectKeySwitch._process_key_switchesc                 C   s    t |jot||| j| jjS r#   )r   r   r   r   r   r   r   ru   r    r    r!   rv     s   zDetectKeySwitch._pks_changedN)rx   rz   r{   __doc__r.   r;   rI   rN   rP   rY   rR   rS   r   r   rv   r    r    r    r!   r   S  s    %r   c                   @   sT   e Z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
dd ZdS )ManyToManyDPc              
   C   s:   |j ||f||f||f||f||f||f||fg d S r#   r   r   )r   r-   r7   r8   r9   r:   r5   r6   r    r    r!   r4     s   z&ManyToManyDP.per_property_dependenciesc	           	      C   s\   |s |r|j ||f||fg d S |j ||f||fg d S |j ||f||fg d S r#   r   )	r   r-   r   r   rF   r5   r6   rD   rH   r    r    r!   rC     s   z#ManyToManyDP.per_state_dependenciesc                 C   s*   | j s|D ]}||| j| j qd S d S r#   )r   rT   r   r   )r   rM   rA   r*   r    r    r!   rN     s   
zManyToManyDP.presort_deletesc           
      C   s   | j s|D ]}| ||r||| jtj}q| jjsd S |D ]9}||| jtj}|rX|j	D ](}| 
|du rW|j|dd| jd | jd|D ]\}}}}	|j|dd qIq/qd S )NFTr   r   r   )r   rv   rT   r   r   r   r   r   r   rG   r(   r   r   r   r   )
r   rM   rA   r*   rX   rE   r   r   r   r   r    r    r!   rP   
  s8   


zManyToManyDP.presort_savesc              
      s   g }g }g }|  |}t }|D ]C | | j| j}|rS| D ]#}	|	d u s1|d ur2 |	f|v r2q!i }
|  |	|
d|ds?q!||
 q!| fdd| D  q|d ur]|| | 	|||| d S )NFr   c                 3       | ]}| fV  qd S r#   r    rg   r   r*   r    r!   r   K      z/ManyToManyDP.process_deletes.<locals>.<genexpr>)
ro   rn   rT   r   r   Z	non_addedre   rB   r   	_run_crud)r   rM   rA   secondary_deletesecondary_insertsecondary_update	processedtmprX   rE   rc   r    r   r!   rR   ,  s@   


zManyToManyDP.process_deletesc              
      s  g }g }g }|  |}t }|D ] | j o| | }|r"tj}	ntj}	| | j|	}
|
r|
j	D ]}|d ur? |f|v r?q2i }| 
 ||d|dsLq2|| q2|
jD ]}|d urb |f|v rbqUi }| 
 ||d|dsoqU|| qU| fdd|
j	|
j D  |r|
jD ]!}i }t | j|d| jj t|| j|d| jj || qq|d ur|| | |||| d S )NFr   r   c                 3   r   r#   r    r   r   r    r!   r   ~  r   z-ManyToManyDP.process_saves.<locals>.<genexpr>old_)ro   rn   r   rv   r   r   r   rT   r   r   re   rB   rG   r   r   r   r   r   r   r   secondary_synchronize_pairsr   )r   rM   rA   r   r   r   r   r   Zneed_cascade_pksrV   rX   rE   rc   r    r   r!   rS   T  s|   


 

zManyToManyDP.process_savesc                    s  |j | j}|r?|d  | jtj fdd| jjD  }|||}|	 r?|j
t|kr?td| jjt||j
f |rw|d  | jtj fdd| jjD  }|||}|	 rw|j
t|krwtd| jjt||j
f |r| j }||| d S d S )Nr   c                    s,   g | ]}|j  v r|tj|j |jd kqS )type_r   r   Z	bindparamtyper   rc   r    r!   ri     s
    
z*ManyToManyDP._run_crud.<locals>.<listcomp>zRDELETE statement on table '%s' expected to delete %d row(s); Only %d were matched.c                    s0   g | ]}|j  v r|tjd |j  |jdkqS )r   r   r   r   r   r    r!   ri     s
    
zRUPDATE statement on table '%s' expected to update %d row(s); Only %d were matched.)Ztransaction
connectionr   r   r   r   and_r   executeZsupports_sane_multi_rowcountZrowcountlenr   ZStaleDataErrordescriptionr   insert)r   rM   r   r   r   r   Z	statementresultr    r   r!   r     s^   
	

	

zManyToManyDP._run_crudc                 C   s   |  | |d u rdS |d ur(|j|s(|js&tdt||| jf  dS t	
|| j|| jj t	
|| j|| jj dS )NFr   T)r_   r   r   rG   r   r   r   r   r   r   Zpopulate_dictr   r   r   r   r   r    r    r!   re     s*   
zManyToManyDP._synchronizec                 C   r   r#   r   ru   r    r    r!   rv     r   zManyToManyDP._pks_changedN)rx   rz   r{   r4   rC   rN   rP   rR   rS   r   re   rv   r    r    r    r!   r     s    "(H=!r   N)r    r   r   r   r   r   r   Z
interfacesr   r   r	   r   r   objectr   r}   r   r   r   r$   r    r    r    r!   <module>   s8     &  3 fu  ;