Class: FriendlyId::Candidates

Inherits:

Object

• Object
• FriendlyId::Candidates

show all

Includes:

Enumerable

Defined in:

lib/friendly_id/candidates.rb

Overview

Instance Method Summary (collapse)

• - (Object) each(*args, &block)

  Visits each candidate, calls it, passes it to normalize_friendly_id and yields any wanted and unreserved slug candidates.

• - (Candidates) initialize(object, *array) constructor

  A new instance of Candidates.

• - (Boolean) reserved?(slug) private
• - (Object) to_candidate_array(object, array) private
• - (Boolean) wanted?(slug) private

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# File 'lib/friendly_id/candidates.rb', line 11

def initialize(object, *array)
  @object = object
  @candidates = to_candidate_array(object, array.flatten(1))
end

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# File 'lib/friendly_id/candidates.rb', line 18

def each(*args, &block)
  pre_candidates = @candidates.map do |candidate|
    @object.normalize_friendly_id(candidate.map(&:call).join(' '))
  end.select {|x| wanted?(x)}

  unless pre_candidates.all? {|x| reserved?(x)}
    pre_candidates.reject! {|x| reserved?(x)}
  end
  pre_candidates.each {|x| yield x}
end

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# File 'lib/friendly_id/candidates.rb', line 56

def reserved?(slug)
  config = @object.friendly_id_config
  return false unless config.uses? ::FriendlyId::Reserved
  return false unless config.reserved_words
  config.reserved_words.include?(slug)
end

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# File 'lib/friendly_id/candidates.rb', line 31

def to_candidate_array(object, array)
  array.map do |candidate|
    case candidate
    when String
      [->{candidate}]
    when Array
      to_candidate_array(object, candidate).flatten
    when Symbol
      [object.method(candidate)]
    else
      if candidate.respond_to?(:call)
        [candidate]
      else
        [->{candidate.to_s}]
      end
    end
  end
end

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# File 'lib/friendly_id/candidates.rb', line 50

def wanted?(slug)
  slug.present?
end