Arel::Where

    # File lib/arel/algebra/relations/operations/where.rb, line 5
 5:     def initialize(relation, predicates)
 6:       super(relation)
 7:       @predicates = predicates.respond_to?(:map) ?
 8:         predicates.map { |p| p.bind(relation) } : [predicates.bind(relation)]
 9:       @wheres = nil
10:     end

    # File lib/arel/algebra/relations/operations/where.rb, line 16
16:     def eval
17:       unoperated_rows.select { |row| predicates.all? { |p| p.eval(row) } }
18:     end

    # File lib/arel/algebra/relations/operations/where.rb, line 20
20:     def to_sql(formatter = nil)
21:       compiler.select_sql
22:     end

    # File lib/arel/algebra/relations/operations/where.rb, line 12
12:     def wheres
13:       @wheres ||= relation.wheres + predicates
14:     end