2011-03-31 00:31:39 +00:00
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module Ransack
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class Predicate
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attr_reader :name, :arel_predicate, :type, :formatter, :validator, :compound
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class << self
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def named(name)
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2011-06-05 18:29:54 +00:00
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Ransack.predicates[name.to_s]
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2011-03-31 00:31:39 +00:00
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end
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def for_attribute_name(attribute_name)
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2011-06-05 18:29:54 +00:00
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self.named(Ransack.predicate_keys.detect {|p| attribute_name.to_s.match(/_#{p}$/)})
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2011-03-31 00:31:39 +00:00
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end
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end
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def initialize(opts = {})
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@name = opts[:name]
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@arel_predicate = opts[:arel_predicate]
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@type = opts[:type]
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@formatter = opts[:formatter]
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@validator = opts[:validator]
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@compound = opts[:compound]
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end
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def eql?(other)
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self.class == other.class &&
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self.name == other.name
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end
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alias :== :eql?
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def hash
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name.hash
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end
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def validate(vals)
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if validator
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2011-04-11 01:11:28 +00:00
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vals.select {|v| validator.call(v.value)}.any?
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2011-03-31 00:31:39 +00:00
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else
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vals.select {|v| !v.blank?}.any?
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end
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end
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end
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end
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