Feature: implement new validators

[syphax-bouazzouni]

Prerequisites

• Refactor: resources validators #138

Context

See agroportal/project-management#393

Changes

• Add instance proc validators (8b14505)

Now we can call, model-specific validators.

For example, if a model defines an instance method called equal_to_10 that tests if a value is equal to 10.

Then we can reference it as a validator for an attribute, like so attribute :age, enforce: [:equal_to_10], this will enforce the attribute age to be 10 (as implemented in the method equal_to_10)

• Add distinct_of validator (0be7925)

p1 distinct_of p2 enforce: A p1 B ^ A p2 C -> B <> C

• Add superior_equla_to validator (deed329)

p1 superior_equla_to p2 enforce: A p1 B ^ A p2 C -> C <= B

• Add email validator , that enforce the string to be a valid email

• Add symmetric validator (5164723)

p is symmetric enforce: A p B -> B p A

• Add inverse_of validator (d57a719)

p1 inverse_of p2 enforce: A p1 B  -> B p2 A

[mdorf]

We are getting this error when running ncbo/ontologies_linked_data unit tests:

	 2: from /Users/mdorf/dev/ncbo/goo/lib/goo/validators/validator.rb:94:in `empty_to_s?'
	 1: from /Users/mdorf/dev/ncbo/ontologies_linked_data/lib/ontologies_linked_data/models/users/user.rb:93:in `to_s'
/Users/mdorf/dev/ncbo/goo/lib/goo/base/settings/settings.rb:272:in `block in shape_attribute': Attribute `username` is not loaded for http://data.bioontology.org/users/tim. Loaded attributes: #<Set: {}>. (Goo::Base::AttributeNotLoaded)
rake aborted!

Is there another pull request inside ontologies_linked_data that we are missing?

[mdorf]

With the new validators in place, it appears that the "username" of the User object is automatically assumed to have been loaded, which is not always the case, hence these errors. This errors out in multiple places in our test code.

[mdorf]

These types of errors would be almost impossible to detect unit after the code is merged and deployed. We should be more diligent about submitting pull requests that are not fully self contained (or at least without having the additional dependencies clearly documented in the PR).

[mdorf]

@syphax-bouazzouni, just wanted to check if you saw my original error report. The code errors out at:

      def to_s
        self.username.to_s
      end

Adding this code fixes many of these errors, but not all:

      def to_s
        self.bring(:username) if self.bring?(:username)
        self.username.to_s
      end

Do you have a different fix to this? This issue prevents us from proceeding.

[syphax-bouazzouni]

Hi @mdorf ,

I just did this PR, that fixed the failing test in ontologies-linked-data (https://github.com/ontoportal-lirmm/ontologies_linked_data/actions/runs/6042678133), sorry I fixed this locally but forgot to do a PR for NCBO.

A better solution (i think) would be also to update the function empty_to_s?(object), like so

   def empty_to_s?(object)
        begin 
           object && object.to_s&.strip.empty?
       rescue 
         return true
       end
  end