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use ARel rather than generate SQL strings

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This commit is contained in:
Aaron Patterson 2010-11-24 13:40:23 -08:00
parent afe51afcc6
commit cdf6cf01cb
2 changed files with 4 additions and 3 deletions
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5
activerecord/lib/active_record/associations/class_methods/join_dependency.rb
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@ -33,10 +33,11 @@ module ActiveRecord
join_parts.first join_parts.first
end end
def columns(connection) def columns
join_parts.collect { |join_part| join_parts.collect { |join_part|
table = Arel::Nodes::TableAlias.new join_part.aliased_table_name, nil
join_part.column_names_with_alias.collect{ |column_name, aliased_name| join_part.column_names_with_alias.collect{ |column_name, aliased_name|
"#{connection.quote_table_name join_part.aliased_table_name}.#{connection.quote_column_name column_name} AS #{aliased_name}" table[column_name].as aliased_name
} }
}.flatten }.flatten
end end

2
activerecord/lib/active_record/relation/finder_methods.rb
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@ -202,7 +202,7 @@ module ActiveRecord
end end
def construct_relation_for_association_find(join_dependency) def construct_relation_for_association_find(join_dependency)
relation = except(:includes, :eager_load, :preload, :select).select(join_dependency.columns(connection)) relation = except(:includes, :eager_load, :preload, :select).select(join_dependency.columns)
apply_join_dependency(relation, join_dependency) apply_join_dependency(relation, join_dependency)
end end