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  • Dec 10 23:46
    johnmaxwell commented #116
  • Dec 10 21:54

    flash-gordon on master

    Halt with mutable backtrace Ex… Merge pull request #116 from jo… (compare)

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    flash-gordon commented #375
Igor
@svilenkov
When using dry-initializer how can you add some code to the initialize() method without affecting gems behavior?
Piotr Solnica
@solnic
@blelump I think you should talk to @timriley as I’m almost sure he’d be interested in seeing how hot-reloading of a container could be implemented properly. I won’t have time for this during this week. Way too much mojowork + dry-logic/validation. Sorry ¯_(⊙ʖ⊙)
for rails we probably need to integrate with their AS::Dependencies so it knows about constants loaded by the system
Andrew Kozin
@nepalez
@keeperhood you can just reload the initializer
class MyClass
  extend Dry::Initializer::Mixin

  param :foo

  private

  def initialize(foo, bar)
    @bar = bar
    super(foo)
  end
end
Definitely you have to know a signature of the method to call super properly if you're going to change the signature
Michał Pietrus
@blelump
@solnic , sure! Re AS::Dependencies, my thoughts was similar, however I'm already late due to various issues with hot reloading so I'm going to postpone this task for a while.
Igor
@svilenkov
@nepalez I was thinking the same but what is the signature, it's defined by param values ?
Not sure if super without () would forward arguments if defined as *args
Igor
@svilenkov
I think that will work actually
Just tried in irb
class MyClass
  extend Dry::Initializer::Mixin

  param :foo
  param :bar

  def initialize(*args)
    # do some custom initialization stuff here
    super # calling super without () will forward all arguments
  end
end
Andy Holland
@AMHOL
@solnic is there anything in dry-v to pass through attributes that aren't defined in the validator and just apply validations for the ones that are, use-case being separation of schema/domain validation
Piotr Solnica
@solnic
@AMHOL nope, it rejects unspeced keys
Andy Holland
@AMHOL
Ahh OK, think supporting something like that could be beneficial?
I don't want to duplicate schema validations in domain validators
Andrew Kozin
@nepalez

@keeperhood yes it would. My example displays that you principally can add new arguments of the initializer that does not defined by dry-initializer. But this time you should know what arguments to send to super explicitly.

What Dry::Initializer::Mixin does is provides a module with #initialize method defined, and then includes the module to the class. If you wish not to pollute your class scope with helpers (like param and option), you can make this inclusion explicitly:

class MyClass
  include Dry::Initializer.define -> do
    param :foo
    param :bar
  end
end

In any case what you get is the module with initialize method in a sequence of class ancestors. Then you can work with it via super in a common ruby way.

Piotr Solnica
@solnic
@AMHOL not sure why would that be needed?
Andy Holland
@AMHOL
You're right, was just getting mixed up thinking that if you didn't run predicates on the values it would fail
BTW for at the boundary schema validations do you think they should validate that values are filled and such, or just type validations?
I'm leaning towards just type validations
Piotr Solnica
@solnic
@AMHOL yes at the boundary you simply needs coercions/type-checking but I haven't experimented with separating this yet
Andy Holland
@AMHOL
Cool, give me a shout if you do :+1:
Piotr Solnica
@solnic
my concern is duplication, not sure how to do it without duplication tbf
I duplicated the word duplication
Andy Holland
@AMHOL
lol
Yeah same with me, but thinking about it more, I don't think it's an issue
Don Morrison
@elskwid
duduplication
Andy Holland
@AMHOL
i.e. schemas and validators should both work stand-alone, just that the validator would assume input of the correct type, but should still make assertions on required keys
i.e. with something like:
module Web
  module Blog
    module Schemas
      module Posts
        Update = Dry::Validation.Form do
          required(:id, :int).value(:int?)

          required(:post).schema do
            required(:title, :str).value(:str?)
            required(:content, :str).value(:str?)
          end
        end
      end
    end
  end
end

module Blog
  module Validators
    module Posts
      Update = Dry::Validation.Schema do
        required(:id)
        required(:title).filled(min_size?: 3)
        required(:content).filled(min_size?: 100)
      end
    end
  end
end
Although in the second case, messages doesn't report on the missing id
require 'dry-validation'

module Blog
  module Validators
    module Posts
      Update = Dry::Validation.Schema do
        required(:id)
      end
    end
  end
end

Blog::Validators::Posts::Update.({})
# => #<Dry::Validation::Result output={} messages={}>
Take it that's a bug?
Tim Riley
@timriley
Or a not-yet-built-for use case, I think
There was some chat about it in here within the last couple of days IIRC
having a dry-v schema with a rule about the key but not the value
Andy Holland
@AMHOL
Yeah, I would think it would assert that the key was present
Although in this case adding .filled is valid
Tim Riley
@timriley
yeah, the problem is that rn I don’t think it does that
That's where the earlier discussion was
My uneasy feeling about the code you've posted is that I feel like I'd probably want my type specs to be inside my domain validation too
otherwise it feels... incomplete
Tim Riley
@timriley
I would just want it to hard-fail if the type specs weren't met, instead of trying to coerce first, which is what you might do on the boundary schemas
Michał Pietrus
@blelump
morning @solnic , I've recently bumped dry-v to the newest version (0.9.5) and there's one thing that used to work in 0.7, but it seems it doesnt in 0.9.5. In particular, you were able to configure configure { config.messages = :i18n } globally
uhm, perhaps I assumed it worked because of this one I18n backend is no longer required and set by default (solnic). Might be related?
Piotr Solnica
@solnic
@blelump yes probably. You can still set it in a single place
Michał Pietrus
@blelump
@solnic , oh, how should I do that ?
Piotr Solnica
@solnic
Define a base schema class and inherit from it
Michał Pietrus
@blelump
I see. Since I'm with Reform, there's some work to do to make it possible
Piotr Solnica
@solnic
Reform should handle it then somehow