Why is the record not being added to the table?

Question

Ruby on Rails

I'm trying to add a record to a table.
First, I create a request:

result = model.build(
  # Тут поля...
)

Next I do:

if result.save
  puts 'Да'
else
  puts 'Нет'
end

Before I savewrote:
puts result.to_json
And this brought out a line in which it is clear that all required (NOT NULL) fields are filled in, ID is still null. All right.
But when it comes to save, it prints "No".
What could be the problem? Is there any way to get the text of the error?

Answer 1

Is there any way to get the text of the error?
Usually the error texts are inresult.errors.messages

Answer 2

Firstly

puts 'Нет'
puts result.errors.messages

Secondly, write tests, it's simple and you will have heavenly happiness on earth

valid_attributes = {foo: 1, bar: 2}
object = Object.create(valid_attributes)
expect(object).to be_valid