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German's questions

Martin Hope
German
Asked: 2020-12-08 12:59:30 +0800 CST
  • 5

I am trying to prove that a foreign key is unique, since only one relationship can exist on that table per user.

My doubt is that I don't know if I have to put a restriction on the table indicating that the foreign field is also unique, or just placing the uniqueness validation in the ActiveRecord works.

My ActiveRecord:

class Balance < ActiveRecord::Base
  #association macros
  belongs_to :user
  belongs_to :wallet

  #validation macros
  validates :user_id, presence: true, uniqueness: true
  validates :wallet_id, presence: true
end

My Factory:

FactoryGirl.define do
  factory :balance do
    user
    wallet
    amount 2000
  end
end

My quiz:

RSpec.describe Balance, type: :model do

  let(:balance) { FactoryGirl.create :balance }

  it "when is valid" do
    expect(balance).to be_valid
  end

  it "when is presence user_id" do
    expect(balance).to validate_presence_of :user_id
  end

  it "when is presence wallet_id" do
    expect(balance).to validate_presence_of :wallet_id
  end

  it "when is uniqueness user_id" do
    expect(balance).to validate_uniqueness_of :user_id #falla
  end


  it "when is belongs_to :user" do
    should belong_to(:user)
  end

  it "when is belongs_to :wallet" do
    should belong_to(:wallet)
  end

end

Mistake

Balance when is uniqueness user_id
     Failure/Error: let(:balance) { FactoryGirl.create :balance }
     ActiveRecord::RecordInvalid:
       Validation failed: User has already been taken
     # ./spec/models/balance_spec.rb:5:in `block (2 levels) in <top (required)>'
     # ./spec/models/balance_spec.rb:20:in `block (2 levels) in <top (required)>
ruby-on-rails
Martin Hope
German
Asked: 2020-12-03 18:15:45 +0800 CST
  • 8

I am testing for a API en RoR. I want to validate the structure of a response to a request from my API. I want to make sure that a particular field exists in that response and if it doesn't exist indicate that the test fails.

let(:user) { FactoryGirl.create(:user) }

describe "POST #create" do

    context "when logged in with identifier" do

        before(:each) do
            @user_attributes = { identifier: user[:email], password: '12345678' } 
            post :create, { session: @user_attributes }
        end

        it"when is valid token" do
            #como valido que en la respuesta exista el token
        end
    end
end

The responsepetition is as follows:

{"user": 
  {
   "id":9005,
   "email":"[email protected]",
   "first_name":"Serenity",
   "middle_name":"Keagan",
   "last_name":"O'Kon",
   "birthday":"2014-07 -01T04:30:00.000Z"
  },
 "token":"....."
 }

I am using RSpec 3.3.0andRails 4.2.3

ruby-on-rails
Martin Hope
German
Asked: 2020-12-03 17:41:39 +0800 CST
  • 4

I am trying to install a module nodejson an Amazon EC2 instance when I run ppm install markdown-pdfI get the following error:

> [email protected] install /home/ubuntu/fermat-org/api-server/node_modules/markdown-pdf/node_modules/phantomjs
> node install.js

PhantomJS not found on PATH
Download already available at /home/ubuntu/tmp/phantomjs/phantomjs-1.9.8-linux-x86_64.tar.bz2
FATAL ERROR: CALL_AND_RETRY_2 Allocation failed - process out of memory
Aborted (core dumped)
npm WARN This failure might be due to the use of legacy binary "node"
npm WARN For further explanations, please read
/usr/share/doc/nodejs/README.Debian

npm ERR! weird error 134
npm ERR! not ok code 0

I have node v0.12.25andnpm 1.3.10

ubuntu