dry-rb/chat

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Piotr Solnica

@solnic

if you think that’s crazy, I can assure you this kind of requirements exist :joy: I’ve got a ton of this stuff in my current client project

Andy Holland

@AMHOL

@solnic I don't get what group is doing differently? Is it that it's calling an existing predicate with the values from two keys?

Group seems a bit of a strange name for that

Hannes Nevalainen

@kwando

I not sure about the name, but the functionality :thumbsup:

Piotr Solnica

@solnic

@AMHOL it groups rules so...

I mean I’m open to other names of course

the rule is called Rule::Group and is identified as :group because it is a…group :)

Andy Holland

@AMHOL

Just looks like an eql predicate in the spec

Piotr Solnica

@solnic

it accepts multiple args as input, so it’s different

we could just use rule(eql?: [:pass, :confirm]) maybe

Tim Riley

@timriley

That one reads better to me.

Piotr Solnica

@solnic

cool, I think I like it more

Tim Riley

@timriley

If I saw the word “group” used in a validation schema, I’d expect it to allow a disparate set of predicates (on multiple keys, even) that would all need to pass together, or something.

Andy Holland

@AMHOL

Yeah, rule works nicely IMO, much less confusing

Piotr Solnica

@solnic

Class.new(Dry::Validation::Schema) do
  confirmation(:password)
end

cannot be more concise than this :joy:

Andy Holland

@AMHOL

Piotr Solnica

@solnic

@AMHOL btw, uniqueness validation backed by a db should be very simple to achieve now

Andy Holland

@AMHOL

Nice, guess it will still need a global connection?

Piotr Solnica

@solnic

basically include App::Import(‘persistence.relations.users’) and def unique?(key, value); users.unique?(key => value);end

injected from container

Andy Holland

@AMHOL

Ahh OK, so we need to make a new predicate for each unique constraint, makes sense :+1:

Piotr Solnica

@solnic

@AMHOL well, it’s just a key rule

Andy Holland

@AMHOL

Could probably do some hocus pocus to make a generic one, but would probably be a bad idea

Piotr Solnica

@solnic

key(:email, &:unique?) will partially apply :email to the predicate

then value will be passed

so it’s gonna Just Work™

@AMHOL I will do the hocus pocus in rom-model for that

Andy Holland

@AMHOL

Yeah, I was more meaning say if you wanted a constraint on users#email and then another on credential#token for example

Piotr Solnica

@solnic

but a generic orm-agnostic/db-lib-agnostic predicate would be insane IMO

Andy Holland

@AMHOL

Ahh, cool

Yep, v.bad idea

Nice work BTW, looking awesome

Piotr Solnica

@solnic

@AMHOL thanks man, I’m close to cover all the use cases :)

but I’m gonna stop now, I feel confident enough that this is a good direction that more advanced stuff can be done later

Andy Holland

@AMHOL

Cool, I wish I could see a before and after on your million line validators lol

Piotr Solnica

@solnic

I gotta focus on rodakase and the book now

Andy Holland

@AMHOL

You written any of the book yet?

Piotr Solnica

@solnic

@AMHOL ain’t gonna happen, which is unfortunate, I’m leaving the project this month

Andy Holland

@AMHOL

Ahh, that's a shame

Piotr Solnica

@solnic

@AMHOL I’m about to start. first pages will be written on Friday

Andy Holland

@AMHOL

Nice :)

Piotr Solnica

@solnic

I need to come up with a rough plan first, but I have “intro” in my head so that’d be a start

I also need to figure out leanpub :)

90 stars on dry-validation btw :sparkles:

Andy Holland

@AMHOL

Piotr Solnica

@solnic

it’s been a trending repo on github since last week, every day, I actually check it daily for whatever reason :joy:

Andy Holland

@AMHOL

lol to see if any of your repos are there ;)

Piotr Solnica

@solnic

that’s very likely

Andy Holland

@AMHOL

It is cool tho

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