Is it possible to pass outside variables into the serializer?

[dmastylo]

I have a collection that, in order to save db trips, uses a second collection that has some data associated to the records in the first collection. In RABL I could simply reference the global variable @data inside the view template and be done. Is this doable with AMS?

[beauby]

Could you be more specific?

[dmastylo]

Removing some code for brevity but this is the gist of it. I can't do the method call within the serializer because I'd be doing multiple DB hits for it, so I collect all the results and call the hash within the serializer.

Controller

def index
    @games = Game.games

    # returns a hash
    @temp_players = GameQueue.players(params[:input])

    render json: @games, include: [:perimeters, :start_zones]
  end

Serializer

class GameSerializer < ActiveModel::Serializer
  attributes :id, :name, :max_players, :description, :level, :best_finish

  attribute :buy_in_price, key: :buy_in_price_dollars

  has_many :perimeters, serializer: PerimeterSerializer
  has_many :start_zones, serializer: StartZoneSerializer

  def best_finish
    if @players
      @players[object.id]
    end
  end
end

[bf4]

what's the variable you're trying to pass in? Check out
#1252

In the past, I've created an attr_accessor on my model and used that to
pass in info

On Mon, Oct 19, 2015 at 8:09 PM, Damian Mastylo [email protected]
wrote:

Controller

def index
@games = Game.games

# returns a hash
@temp_players = GameQueue.players(params[:input])

render json: @games, include: [:perimeters, :start_zones]

end

Serializer

class GameSerializer < ActiveModel::Serializer
attributes :id, :name, :max_players, :description, :level, :best_finish

attribute :buy_in_price, key: :buy_in_price_dollars

has_many :perimeters, serializer: PerimeterSerializer
has_many :start_zones, serializer: StartZoneSerializer

def best_finish
if @mongo_players
@mongo_players[object.id]
end
endend

—
Reply to this email directly or view it on GitHub
#1278 (comment)
.

[dmastylo]

@bf4 @beauby I want to pass in that @players variable from the controller.

[beauby]

@dmastylo You could add attr_accessor :best_finish to your Game model, then in the controller you could do @games.each { |g| g.best_finish = @temp_players[g.id] }.

[dmastylo]

Thanks that works! @beauby