Module: StandardAPI::Orders

Defined in:
lib/standard_api/orders.rb

Class Method Summary collapse

Class Method Details

.normalize(orderings) ⇒ Object

# :size => [:size] # { :size => :asc } => [=> :asc] # { :size => :desc } => [=> :desc] # => {:desc => :nulls_first} => [=> {:desc => :nulls_first}] # [:size, :id] => [:size, :id] # { :size => :asc, :id => :desc } => [{ :size => :asc, :id => :desc }] # ‘listings.size’ => [=> [:size]] # { ‘listings.size’ => :asc } => [=> [{:size => :asc]}] # { ‘listings.size’ => :desc } => [=> [{:size => :desc]}] # [‘listings.size’, ‘property.id’] => [=> [:size], => [:id]] # { ‘size’ => :asc, ‘property.id’ => :desc } => [=> :asc, => [{:id => :desc]}] # { :size => => :nulls_first, ‘property.id’ => => :null_last } => [=> {:asc => :nulls_first}, => [{:id => {:desc => :nulls_first}]}]



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# File 'lib/standard_api/orders.rb', line 16

def self.normalize(orderings)
  return nil if orderings.nil?
  orderings = orderings.is_a?(Array) ? orderings : [orderings]

  orderings.map! do |order|
    case order
    when Hash
      normalized = ActiveSupport::HashWithIndifferentAccess.new
      order.each do |key, value|
        key = key.to_s
        if key.index(".")
          relation, column = key.split('.').map(&:to_sym)
          normalized[relation] ||= []
          normalized[relation] << { column => value }
        elsif value.is_a?(Hash) && value.keys.first.to_s != 'desc' && value.keys.first.to_s != 'asc'
          normalized[key.to_sym] ||= []
          normalized[key.to_sym] << value
        else
          normalized[key.to_sym] = value
        end
      end
      normalized
    else
      order = order.to_s
      if order.index(".")
        relation, column = order.split('.').map(&:to_sym)
        { relation => [column] }
      else
        order.to_sym
      end
    end
  end
end

.sanitize(orders, permit, normalized = false) ⇒ Object 



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# File 'lib/standard_api/orders.rb', line 50

def self.sanitize(orders, permit, normalized=false)
  return nil if orders.nil?
  orders = StandardAPI::Orders.normalize(orders) if !normalized

  permit = [permit] if !permit.is_a?(Array)
  permit = permit.flatten.map { |x| x.is_a?(Hash) ? x.with_indifferent_access : x.to_s }
  permitted = []

  case orders
  when Hash
    orders.each do |key, value|
      if permit.include?(key.to_s)
        value = value.symbolize_keys if value.is_a?(Hash)
        permitted = { key.to_sym => value }
      elsif permit.find { |x| x.is_a?(Hash) && x.has_key?(key.to_s) }
        subpermit = permit.find { |x| x.is_a?(Hash) && x.has_key?(key.to_s) }[key.to_s]
        sanitized_value = sanitize(value, subpermit, true)
        permitted = { key.to_sym => sanitized_value }
      else
        raise(ActionDispatch::ParamsParser::ParseError.new("Invalid Ordering #{orders.inspect}", nil))
      end
    end
  when Array
    orders.each { |order| permitted << sanitize(order, permit, true); }
  else
    if permit.include?(orders.to_s)
      permitted = orders
    # elsif permit.split('.').size == 2
    #   sanitize({permit.split('.')[0] => permit.split('.')[1]}, permit)
    else
      raise(ActionDispatch::ParamsParser::ParseError.new("Invalid Ordering #{orders.inspect}", nil))
    end
  end

  permitted
end