Check if user has provided image?

Question

I am using these gem's to handle my image uploader:

gem 'carrierwave'
gem 'mini_magick'
gem 'fog'

However I can't seem to find out whether or not the image is nil or empty, as it can't be because it returns this when I call @user.picture:

"********@hotmail.co.uk", encrypted_password:

"************************************", reset_password_token: nil, reset_password_sent_at: nil, remember_created_at: nil, sign_in_count: 6, current_sign_in_at: "2016-03-18 11:23:00", last_sign_in_at: "2016-03-18 11:18:16", current_sign_in_ip: "127.0.0.1", last_sign_in_ip: "127.0.0.1", created_at: "2016-03-17 15:00:46", updated_at: "2016-03-18 11:24:13", provider: nil, uid: nil, username: "StormViper", login: nil, cart_id: 1, admin: true, picture: "download.jpg", brand_id: 1, is_brand?: true>, @mounted_as=:picture, @storage=#>, @file=#, @versions={}>

This is my user controller:

if @user.save
  p "USER SAVED LOGIN: #{@user.username}"
  @cart = Cart.create(:user_id => @user.id, :cart_count => 0)
  @cart.save
  @user.cart_id = @cart.id
  @user.save

  @slot = Slot.create(:cart_id => @cart.id)
  @slot.save
  @cart.slot_id = @slot.id
  @cart.save
  redirect_to root_path
else
  p "USER FAILED LOGIN: #{@user.username}"
  render 'new'
end

How would I solve this issue? I can't directly change the picture.url as it returns:

*** NoMethodError Exception: undefined method `url=' for

PictureUploader:0x007f73e6135e78>

My user model contains:

class User < ActiveRecord::Base
  has_one :cart
  has_many :slots, through: :carts
  belongs_to :brand
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  attr_accessor :login
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable,
         :authentication_keys => [:login]
  validates :username, presence: true, uniqueness: true
    def self.find_for_database_authentication(warden_conditions)
      conditions = warden_conditions.dup
      if login = conditions.delete(:login)
        where(conditions.to_hash).where(["lower(username) = :value OR lower(email) = :value", { :value => login.downcase }]).first
      elsif conditions.has_key?(:username) || conditions.has_key?(:email)
        where(conditions.to_hash).first
      end
    end
    mount_uploader :picture, PictureUploader
end

What's in your User model? Can you update your post with that info? — flanger001

flanger001 flanger001 · Accepted Answer · 2016-03-18T12:02:08

It looks like you do have something saved to the picture column on your user. If you're looking for a boolean, I'd try @user.picture.present?, and if you're looking for the actual file, @user.picture.url.

Edit: #url, not #file on the Carrierwave upload models. I was confusing work with home for a second!

Check if user has provided image?

"********@hotmail.co.uk", encrypted_password:

PictureUploader:0x007f73e6135e78>

2 Answers