lib/active_relation/relations/insertion.rb


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module ActiveRelation
  class Insertion < Compound
    attr_reader :record

    def initialize(relation, record)
      @relation, @record = relation, record
    end

    def to_sql(strategy = nil)
      [
        "INSERT",
        "INTO #{table_sql}",
        "(#{record.keys.collect(&:to_sql).join(', ')})",
        "VALUES #{inserts.collect(&:to_sql).join(', ')}"
      ].join("\n")
    end  

    protected
    def inserts
      relation.inserts + [record]
    end
  end
end