76 lines
1.6 KiB
Ruby
76 lines
1.6 KiB
Ruby
module Ransack
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class Predicate
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attr_reader :name, :arel_predicate, :type, :formatter, :validator,
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:compound, :wants_array, :case_insensitive
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class << self
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def names
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Ransack.predicates.keys
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end
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def named(name)
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Ransack.predicates[name.to_s]
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end
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def detect_and_strip_from_string!(str)
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detect_from_string str, chomp: true
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end
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def detect_from_string(str, chomp: false)
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return unless str
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Ransack.predicates.sorted_names_with_underscores.each do |predicate, underscored|
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if str.end_with? underscored
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str.chomp! underscored if chomp
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return predicate
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end
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end
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nil
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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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lambda { |v| v.respond_to?(:empty?) ? !v.empty? : !v.nil? }
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@compound = opts[:compound]
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@wants_array = opts.fetch(:wants_array,
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@compound || Constants::IN_NOT_IN.include?(@arel_predicate))
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@case_insensitive = opts[:case_insensitive]
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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 format(val)
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if formatter
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formatter.call(val)
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else
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val
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end
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end
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def validate(vals, type = @type)
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vals.any? { |v| validator.call(type ? v.cast(type) : v.value) }
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end
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def negative?
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@name.include?("not_".freeze)
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end
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end
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end
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