ó i4Vdc@sŽdZddlmZmZdefd„ƒYZdefd„ƒYZdefd„ƒYZd efd „ƒYZ d efd „ƒYZ d S(s] Useful auxiliary data structures for query construction. Not useful outside the SQL domain. iÿÿÿÿ(tINNERtLOUTERtEmptyResultSetcBseZRS((t__name__t __module__(((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyRst MultiJoincBseZdZd„ZRS(s¤ Used by join construction code to indicate the point at which a multi-valued join was attempted (if the caller wants to treat that exceptionally). cCs||_||_dS(N(tleveltnames_with_path(tselft names_postpath_with_names((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyt__init__s (RRt__doc__R (((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyR stEmptycBseZRS((RR(((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyR stJoincBsDeZdZd„Zd„Zd„Zd„Zd„Zd„ZRS(sÙ Used by sql.Query and sql.SQLCompiler to generate JOIN clauses into the FROM entry. For example, the SQL generated could be LEFT OUTER JOIN "sometable" T1 ON ("othertable"."sometable_id" = "sometable"."id") This class is primarily used in Query.alias_map. All entries in alias_map must be Join compatible by providing the following attributes and methods: - table_name (string) - table_alias (possible alias for the table, can be None) - join_type (can be None for those entries that aren't joined from anything) - parent_alias (which table is this join's parent, can be None similarly to join_type) - as_sql() - relabeled_clone() cCsI||_||_||_||_|jƒ|_||_||_dS(N(t table_namet parent_aliast table_aliast join_typetget_joining_columnst join_colst join_fieldtnullable(RRRRRRR((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyR -s     cCsvg}g}|j}|jj}x^t|jƒD]M\}\}} |jd||jƒ||ƒ||jƒ|| ƒfƒq1W|jj |j j |j|jƒ} | râ|j | ƒ\} } |jd| ƒ|j | ƒn|st|jd|jƒ} td| jƒ‚ndj|ƒ}|j|jkr=dn d|j}d|j||jƒ||f}||fS( sš Generates the full LEFT OUTER JOIN sometable ON sometable.somecol = othertable.othercol, params clause for this join. s %s.%s = %s.%ss(%s)tfieldsaJoin generated an empty ON clause. %s did not yield either joining columns or extra restrictions.s AND ts %ss%s %s%s ON (%s)(tquote_name_unless_aliastopst quote_namet enumerateRtappendRRRtget_extra_restrictiontqueryt where_classtcompiletextendtgetattrt ValueErrort __class__tjoinRR(Rtcompilert connectiontjoin_conditionstparamstqntqn2tindextlhs_coltrhs_colt extra_condt extra_sqlt extra_paramstdeclared_fieldt on_clause_sqlt alias_strtsql((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pytas_sql>s2  "     %"cCsX|j|j|jƒ}|j|j|jƒ}|j|j|||j|j|jƒS(N(tgetRRR%RRRR(Rt change_maptnew_parent_aliastnew_table_alias((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pytrelabeled_clonegs cCsJt||jƒrF|j|jkoE|j|jkoE|j|jkStS(N(t isinstanceR%RRRtFalse(Rtother((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyt__eq__ns cCs|jiƒ}t|_|S(N(R<RR(Rtnew((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pytdemotews cCs|jiƒ}t|_|S(N(R<RR(RRA((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pytpromote|s ( RRR R R7R<R@RBRC(((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyRs  )  t BaseTablecBs5eZdZdZdZd„Zd„Zd„ZRS(s The BaseTable class is used for base table references in FROM clause. For example, the SQL "foo" in SELECT * FROM "foo" WHERE somecond could be generated by this class. cCs||_||_dS(N(RR(RRtalias((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyR Œs cCsE|j|jkrdn d|j}|j|jƒ}||gfS(NRs %s(RRR(RR'R(R5tbase_sql((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyR7s%cCs%|j|j|j|j|jƒƒS(N(R%RR8R(RR9((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyR<•sN( RRR tNoneRRR R7R<(((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyRD‚s   N( R tdjango.db.models.sql.constantsRRt ExceptionRRtobjectR RRD(((sq/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/sql/datastructures.pyts  f