<s> from sqlalchemy . sql . expression import func <EOL> from backend . models import Option , Vote , Voting , VotingOption <EOL> def create_voting ( data , session ) : <EOL> """<STR_LIT>""" <EOL> voting = Voting ( description = data [ '<STR_LIT:description>' ] ) <EOL> for option in data [ '<STR_LIT>' ] : <EOL> voting . options . append ( Option ( description = option [ '<STR_LIT:description>' ] ) ) <EOL> session . add ( voting ) <EOL> session . commit ( ) <EOL> return voting <EOL> def delete_voting ( voting_id , session ) : <EOL> """<STR_LIT>""" <EOL> voting = session . query ( Voting ) . get ( voting_id ) <EOL> session . delete ( voting ) <EOL> def get_voting ( voting_id , session ) : <EOL> """<STR_LIT>""" <EOL> return session . query ( Voting ) . filter_by ( id = voting_id ) . one ( ) <EOL> def vote_for_option ( option_id , session ) : <EOL> """<STR_LIT>""" <EOL> vote = Vote ( option_id = option_id ) <EOL> session . add ( vote ) <EOL> session . commit ( ) <EOL> def get_voting_result ( voting_id , session ) : <EOL> """<STR_LIT>""" <EOL> queryset = session . query ( VotingOption . option_id . label ( "<STR_LIT>" ) , func . count ( Vote . id ) . label ( "<STR_LIT>" ) ) . filter ( Voting . id == VotingOption . voting_id ) . filter ( VotingOption . id == Vote . option_id ) . filter ( Voting . id == voting_id ) . group_by ( Voting . id , VotingOption . id ) . all ( ) <EOL> result = [ ] <EOL> for row in queryset : <EOL> result . append ( dict ( zip ( row . keys ( ) , row ) ) ) <EOL> return result </s>
