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37 lines
724 B
Ruby
37 lines
724 B
Ruby
# frozen_string_literal: true
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module Arel
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class TreeManager
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include Arel::FactoryMethods
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attr_reader :ast
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def initialize
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@ctx = nil
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end
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def to_dot
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collector = Arel::Collectors::PlainString.new
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collector = Visitors::Dot.new.accept @ast, collector
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collector.value
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end
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def to_sql engine = Table.engine
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collector = Arel::Collectors::SQLString.new
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collector = engine.connection.visitor.accept @ast, collector
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collector.value
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end
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def initialize_copy other
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super
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@ast = @ast.clone
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end
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def where expr
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if Arel::TreeManager === expr
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expr = expr.ast
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end
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@ctx.wheres << expr
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self
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end
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end
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end
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