Module: SearchObject::Helper

Defined in:
lib/search_object/helper.rb

Class Method Summary collapse

Class Method Details

.camelize(text) ⇒ Object 



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# File 'lib/search_object/helper.rb', line 15

def camelize(text)
  text.to_s.gsub(/(?:^|_)(.)/) { Regexp.last_match[1].upcase }
end

.deep_copy(object) ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/search_object/helper.rb', line 43

def deep_copy(object) # rubocop:disable Metrics/MethodLength
  case object
  when Array
    object.map { |element| deep_copy(element) }
  when Hash
    object.inject({}) do |result, (key, value)|
      result[key] = deep_copy(value)
      result
    end
  when NilClass, FalseClass, TrueClass, Symbol, Method, Numeric
    object
  else
    object.dup
  end
end

.define_module(&block) ⇒ Object 



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# File 'lib/search_object/helper.rb', line 27

def define_module(&block)
  Module.new do
    define_singleton_method :included do |base|
      base.class_eval(&block)
    end
  end
end

.ensure_included(item, collection) ⇒ Object 



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# File 'lib/search_object/helper.rb', line 19

def ensure_included(item, collection)
  if collection.include? item
    item
  else
    collection.first
  end
end

.normalize_search_handler(handler, name) ⇒ Object 



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# File 'lib/search_object/helper.rb', line 35

def normalize_search_handler(handler, name)
  case handler
  when Symbol then ->(scope, value) { method(handler).call scope, value }
  when Proc then handler
  else ->(scope, value) { scope.where name => value unless value.blank? }
  end
end

.select_keys(hash, keys) ⇒ Object 



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# File 'lib/search_object/helper.rb', line 8

def select_keys(hash, keys)
  keys.inject({}) do |memo, key|
    memo[key] = hash[key] if hash.key? key
    memo
  end
end

.stringify_keys(hash) ⇒ Object 



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# File 'lib/search_object/helper.rb', line 4

def stringify_keys(hash)
  Hash[(hash || {}).map { |k, v| [k.to_s, v] }]
end