The DateAdd class represents the addition of an interval to a date/timestamp expression.
Supports two types of intervals:
Used directly, but values cannot be plain strings. | |
ActiveSupport::Duration |
Converted to a hash using the interval's parts. |
# File lib/sequel/extensions/date_arithmetic.rb, line 164 def initialize(expr, interval) @expr = expr @interval = if interval.is_a?(Hash) interval.each_value do |v| # Attempt to prevent SQL injection by users who pass untrusted strings # as interval values. if v.is_a?(String) && !v.is_a?(LiteralString) raise Sequel::InvalidValue, "cannot provide String value as interval part: #{v.inspect}" end end interval else h = Hash.new(0) interval.parts.each{|unit, value| h[unit] += value} {}.merge(h) end end
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