storing values into a integer variable

Question

I have a question about storing a value into a integer variable. Is it possible to store different id into the same variable ? This is my problem, I would like to use a collection_select to save many id's. My code is actually working for one variable, like this :

My code :

User model :

has_many :pins
  scope :artist, -> { where(artist: true) }

Pin model :

belongs_to :user

Pin controller:

 def new
   @pin = Pin.new
   @users = User.all.artist
  end

  def create 
    @pin = current_user.pins.build(pin_params)
    if @pin.save 
      redirect_to @pin, notice: "successfully created!"
    else 
      render 'new'
    end
  end

Pin/new(views):

<div class="form-group">
    <%= f.collection_select(:pin_maker, @users, :id, :pseudo) %>
  </div>

I would like something like that for my new views :

<div class="form-group">
    <%= f.collection_select(:pin_maker, @users, :id, :pseudo, { }, {:multiple => true}) %>
  </div>

But the variables are not saving in my sql table. So my question is : That's possible to store many id in the same variable (:pin_maker) which is an integer ? Or should I create a new table for that ?

That's possible to store many id in the same variable (:pin_maker) which is an integer ? => no — 孙悟空
– 孙悟空, Commented Oct 6, 2016 at 15:30

larz · Accepted Answer · 2016-10-06 17:27:58Z

2

pin_maker is user ? if so: (IMO): you need a n-to-n associations and a table users_pins.

Logic:
One user has many pins
One pin may be made by many users

On Rails:

Model User:

has_many pins, :through => :users_pins

Model Pin:

has_many users, :through => :users_pins

edited Oct 6, 2016 at 17:27

larz

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answered Oct 6, 2016 at 15:40

孙悟空

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Comments

lili pupu · Accepted Answer · 2016-10-06 15:16:44Z

0

Try has_many :users to involve your associations

answered Oct 6, 2016 at 15:16

lili pupu

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