trailblazer reform gem, how to handle this type of input validation?

Question

We are looking at use the reform gem for validating input.

One of the issues we are facing is that we accept input in this format:

params = {
  records: {
    "record-id-23423424": {
      name:       'Joe Smith'
    }
    "record-id-43234233": {
      name:       'Jane Doe'
    }
    "record-id-345234555": {
      name:       'Fox trot'
    }
    "record-id-34234234": {
      name:       'Alex'
    }
  }
}

so if we were to create reform class

class RecordForm < Reform::Form
  property :records
  validates :records, presence: true

  # ?????????
end

How do we validate the contents of the records to make sure each one has a name? The record-id-values are not known ahead of time.

Are you stuck with the present schema? It would be easier to create the validation if the schema would be something like `{ records: [{ id: "record-id-23423424", name: 'Joe Smith'}, ...] }` — Laura Paakkinen, Dec 21 '17 at 06:28

score 0 · Answer 1 · answered Dec 21 '17 at 09:16

Reform currently doesn't allow dynamic properties, and actually, it's not planned since Reform is supposed to be a UI-specific form object.

The solution would be to pre-parse your input into something what Laura suggests. You could then have nested properties for each field.

collection :records do
  property :id # manually parsed
  property :name
end

trailblazer reform gem, how to handle this type of input validation?

1 Answers1