�
��4]c@s
dZd
dl
mZ
d
dlZddlmZ
ddlmZ
ddlmZ
dd	lm	Z	
ej
e�
Zd
�Z
dZdZd
ef
d��YZdef
d��YZe�e_def
d��YZdef
d��YZdeefd��YZdS(s@Path tracking utilities, representing mapper graph traversals.

i����(
tchainNi
(
tclass_mapperi(
texc(
t
inspection(
tutilc

Cs
tj
|�
S(
N(tPathRegistrytdeserialize(
tpath((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt_unreduce_paths
t
*t_sa_defaultRcBs�eZ
dZeZeZd
�Zd�Zd�Zdd�
Z
d�Zed��
Z
d�Zd�Zd	�Zd
�Zd�Zed��
Zed
��
Zed��
Zd�Zd�Zd�ZRS(s�Represent query load paths and registry functions.

    Basically represents structures like:

    (<User mapper>, "orders", <Order mapper>, "items", <Item mapper>)

    These structures are generated by things like
    query options (joinedload(), subqueryload(), etc.) and are
    used to compose keys stored in the query._attributes dictionary
    for various options.

    They are then re-composed at query compile/result row time as
    the query is formed and as rows are fetched, where they again
    serve to compose keys to look up options in the context.attributes
    dictionary, which is copied from query._attributes.

    The path structure has a limited amount of caching, where each
    "root" ultimately pulls from a fixed registry associated with
    the first mapper, that also contains elements for each of its
    property keys.  However paths longer than two elements, which
    are the exception rather than the rule, are generated on an
    as-needed basis.

    cCs|
dk	o|j
|
j
kS(
N(tNoneR(tselftother((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__eq__<s
cCs-tj
d
|||�
||
||jf<dS(Nsset '%s' on path '%s' to '%s'(tlogtdebugtnatural_path(Rt
attributestkeytvalue((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pytset?s

cCs3tj
d
|||�
|
j||jf|�
dS(Ns$setdefault '%s' on path '%s' to '%s'(RRt
setdefaultR(RRRR((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRCs

cCs+||jf}||
kr#|
|S|SdS(
N(
R(RRRR((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pytgetGs


c

Cs
t|j
�
S(
N(tlenR(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__len__Ns
c

Cs
t|j
�
S(
N(RR(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pytlengthQsc
csG|j}
x7t
d
t|
�
d�D]}|
||
|dfV
q"WdS(Niii
(RtrangeR(RRt
i((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pytpairsUs
	

cCsdx]gtd
t
|j�
d�D]}|j|^qD]"}|jr6|j|
�
r6tSq6WtSdS(Nii(RRRt	is_mappertisatTruetFalse(RtmapperRtpath_mapper((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pytcontains_mapperZs
<

cCs||jf|
kS(
N(
R(RRR((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pytcontainsas
c

Cst|j
�f
fS(
N(Rt	serialize(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt
__reduce__ds
c
Cs�|j}
t
tggtd
t|
�
d�D]}|
|^q+D]}|j^q?gtdt|
�
d�D]}|
|j^qjdg
��
S(Niii
(RtlisttzipRRtclass_RR(RRRt
m((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyR&gs

	


B
cCs�|
dkrdSt
tg|
D]=\}}t|�
|dk	rQt|�
j|ndf^q��
}|r�|d
dkr�|dd
!}n|j|�
S(Ni����i(RttupleRR
tattrstcoerce(tclsRtmclsRt
p((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRps

M

cCst|j
|
�S(
N(tEntityRegistrytroot(R/R"((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt
per_mapper�scCstj
d
�|
|j�S(NcSs||
S(
N((tprevtnext((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt<lambda>�t(RtreduceR3(R/traw((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyR.�scCsZ|
jd
t
�
r t||
�S|
jd
t�
rCt|j|
�Stjd|
�
�
dS(Nt
:sinvalid token: %s(tendswitht_WILDCARD_TOKENt
TokenRegistryt_DEFAULT_TOKENR3Rt
ArgumentError(Rttoken((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRA�s





cCstj
d
�|
j|�S(NcSs||
S(
N((R5R6((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyR7�R8(RR9R(RR
((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__add__�s
c

Csd
|jj
|jfS(Ns%s(%r)(t	__class__t__name__R(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__repr__�s
N(RDt
__module__t__doc__R!tis_tokentis_rootRRRRRRtpropertyRRR$R%R'R&tclassmethodRR4R.RARBRE(((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRs(
												tRootRegistrycBs3eZ
dZdZZeZeZeZ	d
�Z
RS(sXRoot registry, defers to mappers so that
    paths are maintained per-root-mapper.

    c
Cs|
jS(
N(
t_path_registry(Rtentity((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__getitem__�s
((RDRFRGRRR!t
has_entitytis_aliased_classR RIRO(((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRL�s



R>c
Bs/eZ
d�ZeZeZd
�Zd�ZRS(cCs<||_|
|_
|
j|f
|_|
j|f
|_dS(
N(RAtparentRR(RRRRA((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__init__�s
	
	

c
cs�|jj
rU|jjrUx�|jjj�D]!}
t|jj|
|j�V
q-Wn]|jj
r�|jjjr�|V
x:|jjj	D]!}
t|jj|
|j�V
q�Wn|V
dS(
N(
RRRQRIR"titerate_to_rootR>RARNt_is_with_polymorphict_with_polymorphic_entities(Rtent((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pytgenerate_for_superclasses�s


"


"c
Cs
t��
dS(
N(
tNotImplementedError(RRN((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRO�s
(	RDRFRSR!RPR RHRXRO(((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyR>�s

		tPropRegistrycBseeZ
d�Zd
�Zejd��
Zejd��
Zed��
Z	ed��
Z
d�ZRS(cCs
tj
|
d
�
}|js&|jr9|
j|j}
n_|jr�|jr�|j|jk	r�|j|jkr�|
d
j|j�
}|
j|}
q�n||_|
|_|
j	|f
|_	|
j
|f
|_
d|jj	|jjf|_|jj
|_
d|j	f|_dS(Ni����tloader(RtinspectRQt_use_mapper_pathRRtwith_polymorphic_mappersR"t_entity_for_mappertpropRRt_wildcard_tokent_wildcard_path_loader_keyt_default_path_loader_keyt_loader_key(RRRR`tinsptsubclass_entity((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRS�s 




	
	



c

Csd
jd�|j
D�
�
S(Ns -> c
ss|]}
t|
�
V
qdS(
N(
tstr(t.0telem((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pys	<genexpr>�s(tjoinR(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__str__�s
c

Cst|j
d
�S(NR"(thasattrR`(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRP�sc


Cs
|jj
S(
N(R`R"(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRN�sc


Cs|jS(
N(
RN(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyR"�sc

Cs||jS(
N(
RN(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pytentity_path�scCs1t|
t
tf�r |j|
St||
�SdS(
N(t
isinstancetinttsliceRR2(RRN((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRO�s

(RDRFRSRkRtmemoized_propertyRPRNRJR"RmRO(((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRZ�s
		R2cBsMeZ
eZeZd�Zed
��
Zd�Z	e	Z
d�Zd�ZRS(cCs�||_|
|_
|j|_||_|
j|f
|_|
jr�|jr�|jj|
jd
j�
r�|
j|jf
|_q�|
j|
jd
jf
|_n|j|_||_dS(Ni����(	RRRRQRNRR"RRRm(RRRRN((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRS
s
	
	

	





c

Cstj
|j�
jS(
N(RR\RNR"(
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyR"
sc


CstS(
N(
R (
R((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__bool__#
s
cCs4t|
t
tf�r |j|
Stj||
�SdS(
N(RnRoRpRtdictRO(RRN((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyRO(
s

cCst||
�||
<}|S(
N(
RZ(RRtitem((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt__missing__.
s

(
RDRFR!RQR RPRSRJR"Rrt__nonzero__RORu(((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyR2

s

			(RGt	itertoolsRtloggingtbaseR
R8RRRt	getLoggerRDRRR=R?tobjectRRLR3R>RZRsR2(((sO/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/path_registry.pyt<module>	s 



	
~5