From 887653c208f6552ff959d0319101835cd61f1421 Mon Sep 17 00:00:00 2001
From: Syphax Bouazzouni <gs_bouazzouni@esi.dz>
Date: Tue, 28 Feb 2023 02:51:50 +0100
Subject: [PATCH] implement object_type validator with the new DSL

---
 .../validators/implementations/object_type.rb | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 lib/goo/validators/implementations/object_type.rb

diff --git a/lib/goo/validators/implementations/object_type.rb b/lib/goo/validators/implementations/object_type.rb
new file mode 100644
index 00000000..41f0349c
--- /dev/null
+++ b/lib/goo/validators/implementations/object_type.rb
@@ -0,0 +1,46 @@
+module Goo
+  module Validators
+    class ObjectType < ValidatorBase
+      include Validator
+
+      key :object_type
+
+      error_message ->(obj) {
+        if @error.eql?(:persistence)
+          "`#{@attr}` contains non persistent models. It will not save."
+        else
+          "`#{@attr}` contains values that are not instance of `#{@model_range.model_name}`"
+        end
+      }
+
+      validity_check -> (obj) do
+        values = Array(@value)
+
+        unless values.select { |v| !self.class.is_a_model?(v, @model_range) }.empty?
+          @error = :no_range
+          return false
+        end
+
+        unless values.select { |v| !self.class.persistent?(v) }.empty?
+          @error = :persistence
+          return false
+        end
+
+        return true
+      end
+
+      def initialize(inst, attr, value, model_range)
+        super(inst, attr, value)
+        @model_range = model_range
+      end
+
+      def self.is_a_model?(value, model_range)
+        value.is_a?(model_range) || (value.respond_to?(:klass) && value[:klass] == model_range)
+      end
+
+      def self.persistent?(value)
+        value.respond_to?(:klass) || value.persistent?
+      end
+    end
+  end
+end