activerecord-hackery--ransack/lib/ransack/predicate.rb

57 lines
1.4 KiB
Ruby

module Ransack
class Predicate
attr_reader :name, :arel_predicate, :type, :formatter, :validator, :compound
class << self
def named(name)
Configuration.predicates[name.to_s]
end
def for_attribute_name(attribute_name)
self.named(Configuration.predicate_keys.detect {|p| attribute_name.to_s.match(/_#{p}$/)})
end
def collection
Configuration.predicates.map {|k, v| [k, Translate.predicate(k)]}
end
end
def initialize(opts = {})
@name = opts[:name]
@arel_predicate = opts[:arel_predicate]
@type = opts[:type]
@formatter = opts[:formatter]
@validator = opts[:validator]
@compound = opts[:compound]
end
def format(vals)
if formatter
vals.select {|v| validator ? validator.call(v.value_before_cast) : !v.blank?}.
map {|v| formatter.call(v.value)}
else
vals.select {|v| validator ? validator.call(v.value_before_cast) : !v.blank?}.
map {|v| v.value}
end
end
def eql?(other)
self.class == other.class &&
self.name == other.name
end
alias :== :eql?
def hash
name.hash
end
def validate(vals)
if validator
vals.select {|v| validator.call(v.value_before_cast)}.any?
else
vals.select {|v| !v.blank?}.any?
end
end
end
end