# File lib/arel/nodes/window.rb, line 19 def frame(expr) raise ArgumentError, "Window frame cannot be set more than once" if @frame @framing = expr end
# File lib/arel/nodes/window.rb, line 32 def initialize_copy other super @orders = @orders.map { |x| x.clone } end
# File lib/arel/nodes/window.rb, line 11 def order *expr # FIXME: We SHOULD NOT be converting these to SqlLiteral automatically @orders.concat expr.map { |x| String === x || Symbol === x ? Nodes::SqlLiteral.new(x.to_s) : x } self end
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