CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-3
Hopstream
Hopstream

Reputation: 6451

Rails validation required numericality even though presence is not set to true

I'm trying to save a record which doesn't have one field set -- which has a validate numericality in the models. Even though the presence is not required in the validation, it's still throwing an error that the field is not a number.

Validation:

validates :network_id,    :numericality => true

Code to that is saving model:

networks.each do |network|
  network.url = network.raw_data.link
  network.save!
end

Error:

Validation failed: Network is not a number

Upvotes: 76

Views: 42825

Answers (5)

thedanotto
thedanotto

Reputation: 7307

You can also write like this...

validates_numericality_of :network_id, allow_nil: true

Upvotes: 2

apneadiving
apneadiving

Reputation: 115511

You should use allow_blank

validates :network_id,    :numericality => true, :allow_blank => true

Upvotes: 16

sergserg
sergserg

Reputation: 22224

In Rails 4 (Ruby 2), you can write:

validates :network_id, numericality: { greater_than_or_equal_to: 0, allow_nil: true }

Upvotes: 13

p.matsinopoulos
p.matsinopoulos

Reputation: 7810

    validates :network_id, :numericality => {:allow_blank => true}

Upvotes: 43

Unixmonkey
Unixmonkey

Reputation: 18784

validates :network_id, :numericality => true, :allow_nil => true

Upvotes: 140

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