Type example about actor HOT 6 CLOSED

Hi there!

When using type:, it ensures that the arguments you give to the actor inherit from the classes that you give.

For example:

class UpdateUser < Actor
  input :user, type: "User"
  input :age, type: ["Integer", "Float"]

  # …
end

class User < ApplicationRecord
  # …
end

This would accept:

UpdateUser.call(user: User.new, age: 12)

but raise an error when calling:

UpdateUser.call(user: 1, age: "12")

from actor.

Yep, just like that 👍🏻

Here’s a full example with a custom class:

class GreetUser < Actor
  input :user, type: "User"

  def call
    puts "Hello #{user.name}!"
  end
end

class User
  def initialize(name:, email:, password:)
    @name = name
    @email = email
    @password = password
  end

  attr_reader :name, :email, :password
end

user = User.new(name: "Kylo", email: "[email protected]", password: "upsilon1%25")

GreetUser.call(user: "wrong")
# => ServiceActor::ArgumentError: Input user on GreetUser must be of type User but was String

GreetUser.call(user: user)
# => Hello Kylo!

from actor.

Ha ok, dont it's a deep validator.

You can't tell inside User which name has a specific type or which age is of type integer.

Validation is at the highest level only.

This has resolved my doubts.

Thanks.

from actor.

So it has to be a class that inherits from ApplicationRecord?

Doesn't work like graphql-ruby that you can create types even without inheriting from ApplicationRecord?

from actor.

No, it can be any class, in the example I’m also using Integer, Float which don’t inherit from ApplicationRecord.

from actor.

How would you do a class UserNotApplicationRecord that has name string, email string, and password string?

...
input :user, type: 'UserNotApplicationRecord'
...

from actor.