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# File 'lib/volt/models/validators/unique_validator.rb', line 3
def self.validate(model, field_name, args)
if RUBY_PLATFORM != 'opal'
if args
value = model.get(field_name)
query = {}
query[field_name.to_s] = value
query['id'] = { '$ne' => model.id }
return Volt.current_app.store.get(model.path[-2]).where(query).first.then do |item|
if item
message = (args.is_a?(Hash) && args[:message]) || 'is already taken'
next { field_name => [message] }
end
end
end
end
{}
end
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