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21 lines
470 B
Ruby
21 lines
470 B
Ruby
module Arel
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module Nodes
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class TableAlias
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attr_reader :name, :relation, :columns
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alias :table_alias :name
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def initialize name, relation
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@name = name
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@relation = relation
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@columns = relation.columns.map { |column|
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column.dup.tap { |col| col.relation = self }
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}
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end
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def [] name
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name = name.to_sym
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columns.find { |column| column.name == name }
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end
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end
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end
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end
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