class Dis::Validations::DataPresence
Dis
Data Presence Validation¶ ↑
Public Class Methods
empty_hash()
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# File lib/dis/validations/data_presence.rb, line 17 def empty_hash @empty_hash ||= Dis::Storage.file_digest("") end
Public Instance Methods
validate(record)
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Validates that a record has data, either freshly assigned or persisted in the storage. Adds a ‘:blank` error on `:data`if not.
# File lib/dis/validations/data_presence.rb, line 10 def validate(record) return if record.data? && record.content_hash != self.class.empty_hash record.errors.add(:data, :blank) end