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Edit File: context.pyc
� 1��fc @ s� 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( e j) Z* e j+ � Z, e j- d$ � Z. d% e/ f d& � � YZ0 e j+ i e1 d' 6e1 d( 6� Z2 d) e f d* � � YZ3 e j j j4 d+ d, � d- e3 f d. � � Y� Z5 d/ e f d0 � � YZ6 e j j j4 d+ d1 � d2 e3 e% f d3 � � Y� Z7 e8 e9 d4 � Z: d5 � Z; d6 � Z< d7 � Z= d8 e/ f d9 � � YZ> d: e> f d; � � YZ? d< e> f d= � � YZ@ d> e> f d? � � YZA d@ eA f dA � � YZB dB eA f dC � � YZC dD eC f dE � � YZD d S(F i����Ni ( t attributes( t interfaces( t loading( t _is_aliased_class( t ORMColumnsClauseRole( t PathRegistry( t _entity_corresponds_to( t _ORMJoin( t aliased( t Bundle( t ORMAdapteri ( t exc( t future( t inspect( t sql( t util( t ClauseElement( t coercions( t expression( t roles( t visitors( t _entity_namespace_key( t _select_iterables( t CacheableOptions( t CompileState( t Options( t LABEL_STYLE_DISAMBIGUATE_ONLY( t LABEL_STYLE_NONE( t LABEL_STYLE_TABLENAME_PLUS_COL( t SelectState( t ExtendedInternalTraversal( t InternalTraversalt LABEL_STYLE_LEGACY_ORMt QueryContextc B s3 e Z d Z d e f d � � YZ d d d � Z RS( t compile_statet queryt paramst load_optionst bind_argumentst execution_optionst sessiont autoflusht populate_existingt invoke_all_eagerst version_checkt refresh_statet create_eager_joinst propagated_loader_optionsR t runidt partialst post_load_pathst identity_tokent yield_pert loaders_require_bufferingt loaders_require_uniquingt default_load_optionsc B sD e Z e Z e Z e Z e Z e Z d Z d Z d Z d Z e Z RS( N( t __name__t __module__t Falset _only_return_tuplest _populate_existingt _version_checkt Truet _invoke_all_eagerst _autoflusht Nonet _refresh_identity_tokent _yield_pert _refresh_statet _lazy_loaded_fromt _legacy_uniquing( ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR7 M s c s8 | � _ | p t � _ | p! t � _ | � _ | � _ | � _ t � _ t � _ | � _ | j j } | j } t � f d � t | | � D� � � _ t | j � � _ | j � _ | j � _ | j � _ | j � _ | j � _ | j � _ | j � _ � j r4| j r4t! j" d d j# | j � � � n d S( Nc 3 s0 | ]& \ } } | j r | j � | � Vq d S( N( t propagate_to_loaderst' _adapt_cached_option_to_uncached_option( t .0t optt uncached_opt( t self( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pys <genexpr>| s s� The yield_per Query option is currently not compatible with %s eager loading. Please specify lazyload('*') or query.enable_eagerloads(False) in order to proceed with query.yield_per().s , ($ R% t _EMPTY_DICTR' R& R" R# R( R: R5 R6 R$ t select_statementt _with_optionst tuplet zipR/ t dictR R@ R) R< R* R? R+ R= R, RD R- RC R4 RB R3 t _no_yield_perst sa_exct InvalidRequestErrort join( RL R" t statementR$ R( R% R' R& t cached_optionst uncached_options( ( RL sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt __init__Y s4 ( R" R# R$ R% R& R' R( R) R* R+ R, R- R. R/ R R0 R1 R2 R3 R4 R5 R6 N( R8 R9 t __slots__R R7 RA RZ ( ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR! 3 s2 t _result_disable_adapt_to_contextt future_resultt ORMCompileStatec B s� e Z e Z d e f d � � YZ e Z d � Z d � Z e d � � Z e d � � Z e d � � Z e d � � Z e d � � Z e d � � Z d � Z d � Z e d � � Z RS( t default_compile_optionsc B s� e Z d e j f d e j f d e j f d e j f d e j f d e j f d e j f d e j f d e j f d e j f d e j f d e j f d e j f g Z e Z e Z e Z d Z e Z e Z e Z e Z d Z e Z e Z e Z e Z RS( t _use_legacy_query_stylet _for_statementt _bake_okt _with_polymorphic_adapt_mapt _current_patht _enable_single_critt _enable_eagerloadst _orm_only_from_obj_aliast _only_load_propst _set_base_aliast _for_refresh_statet _render_for_subqueryt _is_star( N( R8 R9 R t dp_booleanR t dp_has_cache_key_tuplest dp_has_cache_keyt dp_plain_objt _cache_key_traversalR: R` Ra R> Rb Rc t _path_registryRd Re Rf Rg RA Rh Ri Rj Rk Rl ( ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR_ � s6 c O s t � � d S( N( t NotImplementedError( RL t argt kw( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyRZ � s c C s6 | j } | | k r2 | j | � | j | � n d S( N( t dedupe_columnst addt append( RL t objt col_collectiont dedupe( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt _append_dedupe_col_collection� s c C s' | r d d � } | St j | � Sd S( Nc S s | r | St | d � Sd S( Nt key( t getattr( t colt col_name( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt name� s ( RA R t _column_naming_convention( t clst label_stylet legacyR� ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR� � s c K s t � � d S( s� Create a context for a statement given a :class:`.Compiler`. This method is always invoked in the context of SQLCompiler.process(). For a Select object, this would be invoked from SQLCompiler.visit_select(). For the special FromStatement object used by Query to indicate "Query.from_statement()", this is called by FromStatement._compiler_dispatch() that would be called by SQLCompiler.process(). N( Rs ( R� t statement_containert compilerRu ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt create_for_statement� s c C s t | � S( N( t _column_descriptions( R� RW ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt get_column_descriptions� s c C s� | r | | f St j j d d d d h | | j � \ } } | sL t } n | j t � } | j r� | j i | j d 6� } n | | d <y | j d } Wn# t k r� t s� t d � � n X| r� | j | d <n | j r� | j � n | | f S( Nt _sa_orm_load_optionsR* R) R4 t clauset plugin_subjects0 statement had 'orm' plugin but no plugin_subjectt mapper( R! 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| j d t �| j j" | _# | r�| j$ r�i t � d 6| _% | j& | _' xB | j$ D] } | j( r�| j) | � q�q�Wn i | _% | j& | _' | j* r x$ | j* D] \ } } | | � q�Wn g | _+ g | _, t � | _- g | _. g | _/ d | _0 t | j t j1 t j2 f � r�i | _3 x | j D] } | j4 | � qtWt5 | j | j+ � | _ n t6 j7 j8 | j d t �| _9 | S( Nt is_current_entitiest _unbound_load_dedupest adapt_on_names(: RA t stackR> t __new__t _primary_entityt _compile_optionsR` t use_legacy_query_styleR� RN t elementt requested_statementt is_dmlt tablet dml_tableR� R� t setRS R� R� R t SelectBaset _is_textualt _label_styleR t set_label_styleR RW R� t _label_conventiont _QueryEntityt to_compile_statet _raw_columnsRd R� RO R t _global_attributest global_attributest _is_compile_statet process_compile_statet _with_context_optionst primary_columnst secondary_columnsRv R. t _fallback_from_clausest order_byt TextClauset UpdateBaset extra_criteria_entitiest setup_compile_statet _AdHocColumnsStatementR R R� t _from_obj_alias( R� R� R� Ru t toplevelRL RW RJ t fnR} t entity( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR� � sv c C s | S( N( ( RL t colst current_adapter( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt _adapt_col_list s c C s d S( N( RA ( RL ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt _get_current_adapter s N( R8 R9 R t immutabledictt _aliased_generationsRA R� R: t _has_mapper_entitiest _has_orm_entitiest multi_row_eager_loaderst eager_adding_joinst compound_eager_adapterRM R� t eager_joinsR� R� R� R� ( ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR� � s q R� c B s> e Z d Z d Z d � Z d � Z d � Z d e d � Z RS( st internal object created to somewhat act like a SELECT when we are selecting columns from a DML RETURNING. c C s8 | | _ g | D] } t j t j | � ^ q | _ d S( N( R� R t expectR t ColumnsClauseRolet column_args( RL t textt columnst c( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyRZ s c C s t � � d S( N( Rs ( RL ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt _generate_cache_key s c C s t � � d S( N( Rs ( RL t anon_mapt bindparams( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt _gen_cache_key s c K s� | j } | r | j n | j d } | pY | d k rJ | j d t � pY | j d t � } | r� t | _ | _ t | _ x0 | j D]" } | j | d t d | j �q� Wn | j | j | � S( s* provide a fixed _compiler_dispatch method.i����i t need_result_map_for_compoundt need_result_map_for_nestedt within_columns_clauset add_to_result_map( R� t _default_stack_entryR� R: t _ordered_columnst _textual_ordered_columnsR> t _loose_column_name_matchingR� t processt _add_to_result_mapR� ( RL R� t compound_indext asfromRu R� t entryt populate_result_mapR� ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyt _compiler_dispatch# s N( R8 R9 t __doc__RA t __visit_name__RZ R� R� R: R ( ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR� s t selectt ORMSelectCompileStatec B s� e Z e Z Z e Z d$ Z e Z e Z e Z e Z d$ Z d$ Z d$ Z d% Z d& Z e d � � Z d � Z e d � � Z e d � � Z e d � � Z e d � � Z e e j d � d � � � Z d � Z d � Z d � Z d � Z d � Z d � Z! d$ d � Z" d � Z# d � Z$ d � Z% d � Z& d � Z' d � Z( d � Z) d � Z* d � Z+ d � Z, d � Z- d � Z. d � Z/ d � Z0 d � Z1 d � Z2 d � Z3 e4 d � � Z5 e4 d! � � Z6 d" � Z7 d# � Z8 RS(' c s� | j | � � | d k r4 | j } | j � _ n t } i � _ | } | j j | j � | _ | j r� | j � � _ t j � � j _ n | � _ | j j � _ | j j � _ g � _ d � _ i � _ i � _ t � � _ | j j rt | j j � � _ � j � n | j � _ | sE� j i t d 6t d 67_ n � j r�� j j t k r�� j sut � _ q�t! � _ n � j j � _ | j" r�� f d � | j" D� � _# n � j$ | j � j � � _% t& j' � | j( � j d t �| j j) � _* d � _+ | r�| j, s"| j" r�i t � d 6� _- xj | j" D]_ } xV | j, D]K } | j. rO| j/ � g � j# | D] } t0 | t1 � ru| ^ qu� qOqOWq?Wx9 � j j, D] } | j. r�| j2 � � q�q�Wn i � _- | j3 rx$ | j3 D] \ } } | � � q�Wn g � _4 g � _5 t � � _6 i � _7 i � _8 g � _9 g � _: � j; d � | j< D� � � _= � j> � t? j@ � � jA | | � � S( s@ compiler hook, we arrive here from compiler.visit_select() only.Rf Rk c s1 i | ]' } t j � | j g d t �| � q S( R� ( R� R� R� R: ( RI t memoized_entities( RL ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pys <dictcomp>� s R� R� c s s | ] } | j Vq d S( N( R� ( RI t info( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pys <genexpr>� s N( (B R� RA R� R� R� R> R_ t safe_mergeR� R� t _cloneRN R R� Ra t for_statementR` R� R� R� R� R� R� RS Rc RR t _setup_with_polymorphicsR� R: R� R R R� R t _memoized_select_entitiest _memoized_entitiesR� R� R� R� R� Rd R� t eager_order_byRO R R� t' process_compile_state_replaced_entitiesR� R� R� R� R� R� Rv R� R� R. 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Re t _adjust_for_extra_criteriaR� Rh RU t listR� R� R� t _should_nest_selectablet _compound_eager_statementt _simple_statementR t _mapper_zerot _annotate( RL R# R R� R� t rect strategyt ezero( ( R� sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR s� 0 9 ! c C s� | j | � } g | _ d | _ i | _ i | _ | j j | j � } | j rp t | j � | _ | j � n | j | j | � | _ t j | | j | j d t �| S( s Creates a partial ORMSelectCompileState that includes the full collection of _MapperEntity and other _QueryEntity objects. Supports a few remaining use cases that are pre-compilation but still need to gather some of the column / adaption information. 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R ( RL RR t unwrapped_order_byt order_by_col_exprR� t innerRm RW t from_clauset eager_join( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/context.pyR> \ sT 7& c C s | j j rh | j rh | j rh | j rh t j | j | j � } | rV t j d � n | j | 7_ n | j | j | j t | j � t | j j � � | j | j | j | j d | j d | j j d | j j d | j d | j | j �} | j r| j j | | j � n | S( Ns� ORDER BY columns added implicitly due to DISTINCT is deprecated and will be removed in SQLAlchemy 2.0. 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G c C s� t | � } d } } | j r� t j | j | j | � } t | � d k rf | d } | j | } q�t | � d k r� t j d � � q�t j d | f � � n=| r�i } x� t | � D]} \ } } | j } | d k r� q� n t | � } | | k rq� n t | t � r&| | f | | j <q� d | f | | j <q� Wt | j � � } t j | | j | � } t | � d k r�| | | d \ } } q�t | � d k r�t j d � � q�t j d | f � � n t j d � � | | | f S( s� When join conditions don't express the left side explicitly, determine if an existing FROM or entity in this query can serve as the left hand side. i i s Can't determine which FROM clause to join from, there are multiple FROMS which can join to this entity. Please use the .select_from() method to establish an explicit left side, as well as providing an explicit ON clause if not present already to help resolve the ambiguity.s� Don't know how to join to %r. 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