Class: TwoWaySQL::ParenBindVariableNode

Inherits:
Node
  • Object
show all
Defined in:
lib/twowaysql/node.rb

Instance Method Summary collapse

Constructor Details

#initialize(exp) ⇒ ParenBindVariableNode

Returns a new instance of ParenBindVariableNode.



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# File 'lib/twowaysql/node.rb', line 168

def initialize(exp)
  @exp = exp
end

Instance Method Details

#accept(ctx) ⇒ Object 



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# File 'lib/twowaysql/node.rb', line 171

def accept(ctx)
  result = do_eval(ctx, @exp)
  return if result.nil?
  ##TODO: is there any better way to handle array-like structure?
  if result.respond_to?('to_ary')
    bind_values(ctx, result.to_ary)
  else
    ctx.add_value(result)
  end
end

#bind_values(ctx, ary) ⇒ Object 



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# File 'lib/twowaysql/node.rb', line 181

def bind_values(ctx, ary)
  return if ary.empty?
  ctx.add_sql("(")
  ctx.add_values(ary)
  ctx.add_sql(")")
end