Rails trying to join a table. Column not found?

I am trying to return a json response with a game and a game_image from a search result.

I have the following code:

Controller:

  def search
    @games = Game.search(params[:query]).order("created_at DESC").joins(:game_image).where( game_image: { primary: true })
    respond_to do |format|
      format.html
      format.json { render :json => {:message => "Success", :results => @games}}
    end
  end

the search function works and is just a simple LIKE query in sql. Now I am trying to join the game_image table which should only pick the primary image.

Models:

class GameImage < ActiveRecord::Base
  attr_accessible :game_id, :image, :primary , :title
  belongs_to :game
  mount_uploader :image, GameImageUploader
end

class Game < ActiveRecord::Base
  attr_accessible :activated, :description, :metascore, :metascore_url, :name, :pegi_rating, :youtube_url, :release_date , :game_link_attributes , :game_platform_attributes , :edition_attributes , :game_edition_attributes, :game_image_attributes
  validates :name, presence: true

  has_many :game_link
  has_many :shop , through: :game_link
  has_many :game_platform
  has_many :game_genre
  has_many :game_edition
  has_many :edition , through: :game_edition
  has_many :game_image

  accepts_nested_attributes_for :game_image, allow_destroy: true
  accepts_nested_attributes_for :game_link, allow_destroy: true
  accepts_nested_attributes_for :game_platform, allow_destroy: true
  accepts_nested_attributes_for :edition, allow_destroy: true
  accepts_nested_attributes_for :game_edition, allow_destroy: true

  def self.search(query)
    where("name like ?", "%#{query}%")
  end
end

db migrate file for game_image:

class CreateGameImages < ActiveRecord::Migration
  def change
    create_table :game_images do |t|
      t.integer :game_id
      t.string :image
      t.string :title
      t.boolean :primary

      t.timestamps
    end
  end
end

Problem:

Saying no such column altough this column exists. Can someone help me? Thanks

SQLite3::SQLException: no such column: game_image.primary: SELECT "games".* FROM "games" INNER JOIN "game_images" ON "game_images"."game_id" = "games"."id" WHERE "game_image"."primary" = 't' AND (name like '%di%') ORDER BY created_at DESC