CODEWITHSUNDEEP
ruby-on-rails
Martyn
Martyn

Reputation: 6383

Rails models: Validates a number attribute is not eq to zero

I have a column that can be either positive or negative, but never zero. I'm doing the following which doesn't seem to work:

class Transaction < ActiveRecord::Base
  validates :amount, presence: true
  validates :amount, :numericality => { :not_equal_to => 0 }
  .
  .
  .

This is my test

let(:transaction) { FactoryGirl.build(:transaction) }

it "is invalid if amount is zero" do
  transaction.amount = 0
  expect(transaction).to have(1).error_on(:amount)
end

This is my factory:

FactoryGirl.define do
  factory :transaction do
    sequence(:description) { |n| "Transaction #{n}" }
    category_id nil
    amount -100
    notes nil
    fund_id 1
  end
end

What's the way to check number is either positive or negative? Is there something else I'm doing wrong?

Thanks

Upvotes: 0

Views: 921

Answers (1)

Dylan Markow
Dylan Markow

Reputation: 124419

You want :other_than, not :not_equal_to

validates :amount, :numericality => { :other_than => 0 }

See the documentation on validates_numericality_of for all the options.

Upvotes: 4

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