Module: ActiveRecordToHash

Defined in:
lib/active_record_to_hash.rb,
lib/active_record_to_hash/version.rb,
lib/active_record_to_hash/utilities.rb,
lib/active_record_to_hash/active_record.rb

Defined Under Namespace

Modules: ActiveRecord Classes: Railtie

Constant Summary collapse

VERSION = 
'1.5.1'

Class Method Summary collapse

Class Method Details

.call_scope(relation, scope) ⇒ Object 



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# File 'lib/active_record_to_hash/utilities.rb', line 6

def call_scope(relation, scope)
  if scope.is_a? Proc
    ret = relation.instance_exec(&scope)
    return ret || relation
  end

  relation.public_send(scope)
end

.handle_alter(result, options) ⇒ Object 



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# File 'lib/active_record_to_hash/utilities.rb', line 63

def handle_alter(result, options)
  return result if options[:alter].nil?

  res = options[:alter].call(result)
  return result if res.nil?

  res
end

.handle_with_options(options) ⇒ Object 



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# File 'lib/active_record_to_hash/utilities.rb', line 72

def handle_with_options(options)
  options.each_key do |key|
    next unless key.to_s.start_with?('with_')
    next if options[key] == false

    attr_name = key[5..-1].to_sym # 5 is 'with_'.length
    hash_key = !options[key].is_a?(Hash) || options[key][:key].nil? ? attr_name : options[key][:key]
    child_options = ActiveRecordToHash.normalize_child_options(options[key])
    yield(hash_key, attr_name, child_options)
  end
end

.normalize_child_options(options) ⇒ Object 



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# File 'lib/active_record_to_hash/utilities.rb', line 84

def normalize_child_options(options)
  return {} if options == true
  return { exists: true } if options == :exists

  options
end

.retrieve_child_attribute(record, attr_name, options, callee) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/PerceivedComplexity, Metrics/LineLength



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# File 'lib/active_record_to_hash/utilities.rb', line 22

def retrieve_child_attribute(record, attr_name, options, callee) # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/PerceivedComplexity, Metrics/LineLength
  if options.key?(:value)
    return options[:value].call(record) if options[:value].is_a? Proc

    return options[:value]
  end

  if options.key?(:delegate)
    key = options[:delegate].keys.first
    value = options[:delegate].values.first

    delegator = record.public_send(key)
    return nil if delegator.nil?

    return delegator.public_send(value)
  end

  args = options[:args] || []
  value = record.public_send(attr_name, *args)
  if options[:exists]
    raise 'You can use `exists` option only with ActiveRecord::Relation' unless value.is_a? ::ActiveRecord::Relation

    return value.exists?
  end

  ActiveRecordToHash.to_a(options[:scope]).each do |scope|
    value = ActiveRecordToHash.call_scope(value, scope)
  end
  return value.public_send(callee, options.except(:alter)) if value.is_a? ::ActiveRecordToHash::ActiveRecord

  if value.is_a?(Array) || value.is_a?(::ActiveRecord::Relation)
    return value.map do |obj|
      next obj.public_send(callee, options.except(:alter)) if obj.is_a? ::ActiveRecordToHash::ActiveRecord

      obj
    end
  end

  value
end

.to_a(value) ⇒ Object 



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# File 'lib/active_record_to_hash/utilities.rb', line 15

def to_a(value)
  return value if value.is_a? Array
  return [] if value.nil?

  [value]
end