From e846761e54ebf71c70b561586a94adf7b80b8652 Mon Sep 17 00:00:00 2001
From: Gaetan Craig-Riou <gaetan.riou@gmail.com>
Date: Fri, 1 Dec 2023 14:26:09 +1100
Subject: [PATCH 1/8] WIP Patch DFC connector to fix SKOS Concept parsing

This is to let us use intermediary SKOS Concept.
Upstream PR for more details: https://github.com/datafoodconsortium/connector-codegen/pull/10/files
---
 .../connector/connector.rb                    |   3 +
 .../connector/skos_concept.rb                 |  11 ++
 .../connector/skos_helper.rb                  |  14 ++
 .../connector/skos_parser.rb                  | 121 +++++++++++++++++-
 .../connector/skos_parser_element.rb          |  45 +++++++
 5 files changed, 190 insertions(+), 4 deletions(-)
 create mode 100644 engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
 create mode 100644 engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
 create mode 100644 engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb

diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/connector.rb b/engines/dfc_provider/lib/data_food_consortium/connector/connector.rb
index 2d657a33bc6..7c1d22e6e36 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/connector.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/connector.rb
@@ -6,6 +6,9 @@
 # Then our tools for monky-patching:
 require_relative "importer"
 require_relative "context"
+require_relative "skos_parser_element"
+require_relative "skos_concept"
+require_relative "skos_parser"
 
 module DataFoodConsortium
   module Connector
diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
new file mode 100644
index 00000000000..5672e12e6b7
--- /dev/null
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+require_relative 'skos_helper'
+
+module DataFoodConsortium
+  module Connector
+    class SKOSConcept
+	    include DataFoodConsortium::Connector::SKOSHelper
+    end
+  end
+end
diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
new file mode 100644
index 00000000000..1d4a7e456ce
--- /dev/null
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+module DataFoodConsortium::Connector::SKOSHelper
+  def addAttribute(name, value)
+    self.instance_variable_set("@#{name}", value)
+    self.define_singleton_method(name) do
+      instance_variable_get("@#{name}")
+    end
+  end
+
+  def hasAttribute(name)
+    self.methods.include?(:"#{name}")
+  end
+end
diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
index 2cda5b95534..bdb6b23911d 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
@@ -1,11 +1,75 @@
 # frozen_string_literal: true
 
+require_relative 'skos_helper'
+
+module DataFoodConsortium
+  module Connector
+    class SKOSInstance
+      include DataFoodConsortium::Connector::SKOSHelper
+
+      # Return a list of singelton methods, ie the list of Concept available
+      def topConcepts
+        self.methods(false).sort
+      end
+    end
+  end
+end
+
 # Overriding the current implementation to store all parsed concepts for
 # lookup later. Otherwise the importer can't associate these.
 # This is just a workaround and needs to be solved upstream.
 module DataFoodConsortium
   module Connector
     class SKOSParser
+      CONCEPT_SCHEMES = ["Facet", "productTypes"].freeze
+
+      def initialize
+        @results = DataFoodConsortium::Connector::SKOSInstance.new
+        @skosConcepts = {}
+        @rootElements = []
+        @broaders = {}
+        # Flag used to tell the parser to use SkosConcept object when parsing data from Concept Scheme
+        # defined in CONCEPT_SCHEMES
+        @useSkosConcept = false
+      end
+
+      def parse(data)
+        init
+
+        data.each do |element|
+          current = DataFoodConsortium::Connector::SKOSParserElement.new(element)
+
+          setSkosConceptFlag(current)
+
+          if current.isConcept? || current.isCollection?
+            if !@skosConcepts.has_key?(current.id)
+              concept = createSKOSConcept(current)
+              @skosConcepts[current.id] = concept
+            end
+
+            if current.hasBroader
+              current.broader.each do |broaderId|
+                if !@broaders.has_key?(broaderId)
+                  @broaders[broaderId] = []
+                end
+
+                @broaders[broaderId].push(current.id)
+              end
+            # No broader, save the concept to the root
+            else
+              @rootElements.push(current.id)
+            end
+          end
+        end
+
+        @rootElements.each do |rootElementId|
+          setResults(@results, rootElementId)
+        end
+
+        @results
+      end
+
+      # TODO check if this is still needed
       def self.concepts
         @concepts ||= {}
       end
@@ -13,10 +77,59 @@ def self.concepts
       protected
 
       def createSKOSConcept(element) # rubocop:disable Naming/MethodName
-        concept = DataFoodConsortium::Connector::SKOSConcept.new(element.id)
-        concept.semanticType = element.type
-        self.class.concepts[element.id] = concept
-        concept
+        skosConcept = DataFoodConsortium::Connector::SKOSConcept.new(
+          element.id, broaders: element.broader, narrowers: element.narrower
+        )
+        skosConcept.semanticType = element.type
+        # TODO check if this is still needed
+        # original patch by Maikel
+        self.class.concepts[element.id] = skosConcept
+
+        skosConcept
+      end
+
+      private
+
+      def init
+        @results = DataFoodConsortium::Connector::SKOSInstance.new
+        @skosConcepts = {}
+        @rootElements = []
+        @broaders = {}
+        @useSkosConcept = false
+      end
+
+      def setResults(parent, id)
+        name = getValueWithoutPrefix(id)
+
+        if !parent.hasAttribute(name)
+          if @useSkosConcept && !@skosConcepts[id].nil?
+            parent.addAttribute(name, @skosConcepts[id])
+          else
+            parent.addAttribute(name, DataFoodConsortium::Connector::SKOSInstance.new)
+          end
+        end
+
+        # Leaf concepts, stop the process
+        if !@broaders.has_key?(id)
+          parent.instance_variable_set("@#{name}", @skosConcepts[id])
+          return
+        end
+
+        @broaders[id].each do |narrower|
+          parentSkosInstance = parent.instance_variable_get("@#{name}")
+
+          setResults(parentSkosInstance, narrower) # recursive call
+        end
+      end
+
+      def setSkosConceptFlag(current)
+        @useSkosConcept = true if current.isConceptScheme? && matchingConceptSchemes(current)
+      end
+
+      def matchingConceptSchemes(current)
+        regex = /#{CONCEPT_SCHEMES.join("|")}/
+
+        current.id =~ regex
       end
     end
   end
diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
new file mode 100644
index 00000000000..9328833c0dd
--- /dev/null
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+module DataFoodConsortium
+  module Connector
+    class SKOSParserElement
+      attr_reader :narrower
+
+      def initialize(element)
+        @broader = []
+        @narrower = []
+
+        if element
+          @id = element["@id"]
+
+          if element["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"]
+            @type = extractId(element["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"])
+          elsif element["@type"]
+            @type = extractId(element["@type"])
+          else
+            @type = "undefined"
+          end
+
+          if element["http://www.w3.org/2004/02/skos/core#broader"]
+            element["http://www.w3.org/2004/02/skos/core#broader"].each do |broader|
+              @broader.push(broader["@id"])
+            end
+          end
+
+          if element["http://www.w3.org/2004/02/skos/core#narrower"]
+            element["http://www.w3.org/2004/02/skos/core#narrower"].each do |narrower|
+              @narrower.push(narrower["@id"])
+            end
+          end
+        else
+          @id = ""
+          @type = ""
+        end
+      end
+
+      def isConceptScheme?
+        @type == "http://www.w3.org/2004/02/skos/core#ConceptScheme"
+      end
+    end
+  end
+end

From c61e982a76181a278f4b82f8b3f81f914a87303f Mon Sep 17 00:00:00 2001
From: Gaetan Craig-Riou <gaetan.riou@gmail.com>
Date: Mon, 4 Dec 2023 12:00:18 +1100
Subject: [PATCH 2/8] Fix rubocop warning

---
 .../connector/skos_helper.rb                  | 22 +++++++++++--------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
index 1d4a7e456ce..4426fbf4f8d 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
@@ -1,14 +1,18 @@
 # frozen_string_literal: true
 
-module DataFoodConsortium::Connector::SKOSHelper
-  def addAttribute(name, value)
-    self.instance_variable_set("@#{name}", value)
-    self.define_singleton_method(name) do
-      instance_variable_get("@#{name}")
-    end
-  end
+module DataFoodConsortium
+  module Connector
+    module SKOSHelper
+      def addAttribute(name, value) # rubocop:disable Naming/MethodName
+        instance_variable_set("@#{name}", value)
+        define_singleton_method(name) do
+          instance_variable_get("@#{name}")
+        end
+      end
 
-  def hasAttribute(name)
-    self.methods.include?(:"#{name}")
+      def hasAttribute(name) # rubocop:disable Naming/MethodName
+        methods.include?(:"#{name}")
+      end
+    end
   end
 end

From 633d0eadfe91da10f09c0d3cdafd4d90f12c45ef Mon Sep 17 00:00:00 2001
From: Gaetan Craig-Riou <gaetan.riou@gmail.com>
Date: Mon, 4 Dec 2023 13:53:26 +1100
Subject: [PATCH 3/8] Parser element, add label

---
 .../data_food_consortium/connector/skos_parser_element.rb   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
index 9328833c0dd..5b2b4955606 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
@@ -3,11 +3,12 @@
 module DataFoodConsortium
   module Connector
     class SKOSParserElement
-      attr_reader :narrower
+      attr_reader :narrower, :label
 
       def initialize(element)
         @broader = []
         @narrower = []
+        @label = {}
 
         if element
           @id = element["@id"]
@@ -31,6 +32,9 @@ def initialize(element)
               @narrower.push(narrower["@id"])
             end
           end
+          element["http://www.w3.org/2004/02/skos/core#prefLabel"]&.each do |label|
+            @label[label["@language"].to_sym] = label["@value"]
+          end
         else
           @id = ""
           @type = ""

From 9f209cac14f2bade363ee0f5752fb264199a6a7a Mon Sep 17 00:00:00 2001
From: Gaetan Craig-Riou <gaetan.riou@gmail.com>
Date: Mon, 4 Dec 2023 13:53:51 +1100
Subject: [PATCH 4/8] Fix rubocop warning

---
 .../connector/skos_parser_element.rb          | 31 +++++++++----------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
index 5b2b4955606..a44cec51e57 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
@@ -5,7 +5,7 @@ module Connector
     class SKOSParserElement
       attr_reader :narrower, :label
 
-      def initialize(element)
+      def initialize(element) # rubocop:disable Metrics/CyclomaticComplexity
         @broader = []
         @narrower = []
         @label = {}
@@ -13,25 +13,22 @@ def initialize(element)
         if element
           @id = element["@id"]
 
-          if element["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"]
-            @type = extractId(element["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"])
-          elsif element["@type"]
-            @type = extractId(element["@type"])
-          else
-            @type = "undefined"
-          end
+          @type = if element["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"]
+                    extractId(element["http://www.w3.org/1999/02/22-rdf-syntax-ns#type"])
+                  elsif element["@type"]
+                    extractId(element["@type"])
+                  else
+                    "undefined"
+                  end
 
-          if element["http://www.w3.org/2004/02/skos/core#broader"]
-            element["http://www.w3.org/2004/02/skos/core#broader"].each do |broader|
-              @broader.push(broader["@id"])
-            end
+          element["http://www.w3.org/2004/02/skos/core#broader"]&.each do |broader|
+            @broader.push(broader["@id"])
           end
 
-          if element["http://www.w3.org/2004/02/skos/core#narrower"]
-            element["http://www.w3.org/2004/02/skos/core#narrower"].each do |narrower|
-              @narrower.push(narrower["@id"])
-            end
+          element["http://www.w3.org/2004/02/skos/core#narrower"]&.each do |narrower|
+            @narrower.push(narrower["@id"])
           end
+
           element["http://www.w3.org/2004/02/skos/core#prefLabel"]&.each do |label|
             @label[label["@language"].to_sym] = label["@value"]
           end
@@ -41,7 +38,7 @@ def initialize(element)
         end
       end
 
-      def isConceptScheme?
+      def isConceptScheme? # rubocop:disable Naming/MethodName
         @type == "http://www.w3.org/2004/02/skos/core#ConceptScheme"
       end
     end

From 0392806018117c1e3a0f76f9fc6a963b9c6740ff Mon Sep 17 00:00:00 2001
From: Gaetan Craig-Riou <gaetan.riou@gmail.com>
Date: Mon, 4 Dec 2023 13:37:48 +1100
Subject: [PATCH 5/8] Parser, populate SKOSConcept label

---
 .../lib/data_food_consortium/connector/skos_parser.rb        | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
index bdb6b23911d..79a152b7449 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
@@ -78,7 +78,10 @@ def self.concepts
 
       def createSKOSConcept(element) # rubocop:disable Naming/MethodName
         skosConcept = DataFoodConsortium::Connector::SKOSConcept.new(
-          element.id, broaders: element.broader, narrowers: element.narrower
+          element.id,
+          broaders: element.broader,
+          narrowers: element.narrower,
+          prefLabels: element.label
         )
         skosConcept.semanticType = element.type
         # TODO check if this is still needed

From a06e7c1d9e38b587e4bc1e236ad0ba0a2c0f218c Mon Sep 17 00:00:00 2001
From: Gaetan Craig-Riou <gaetan.riou@gmail.com>
Date: Mon, 4 Dec 2023 13:38:22 +1100
Subject: [PATCH 6/8] Fix rubocop issue

---
 .../connector/skos_parser.rb                  | 71 ++++++++++---------
 1 file changed, 38 insertions(+), 33 deletions(-)

diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
index 79a152b7449..dda1422ac2f 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser.rb
@@ -1,5 +1,12 @@
 # frozen_string_literal: true
 
+# patches :
+# - Maikel: Overriding the current implementation to store all parsed concepts for
+#           lookup later. Otherwise the importer can't associate these.
+#           This is just a workaround and needs to be solved upstream.
+
+# - Gaetan: Improve parsing of SKOS Concept. Will be fixed upstream
+
 require_relative 'skos_helper'
 
 module DataFoodConsortium
@@ -8,16 +15,14 @@ class SKOSInstance
       include DataFoodConsortium::Connector::SKOSHelper
 
       # Return a list of singelton methods, ie the list of Concept available
-      def topConcepts
-        self.methods(false).sort
+      def topConcepts # rubocop:disable Naming/MethodName
+        methods(false).sort
       end
     end
   end
 end
 
-# Overriding the current implementation to store all parsed concepts for
-# lookup later. Otherwise the importer can't associate these.
-# This is just a workaround and needs to be solved upstream.
+# rubocop:disable Naming/VariableName
 module DataFoodConsortium
   module Connector
     class SKOSParser
@@ -28,12 +33,13 @@ def initialize
         @skosConcepts = {}
         @rootElements = []
         @broaders = {}
-        # Flag used to tell the parser to use SkosConcept object when parsing data from Concept Scheme
+        # Flag used to tell the parser to use SkosConcept object when parsing data from
+        # Concept Scheme.
         # defined in CONCEPT_SCHEMES
         @useSkosConcept = false
       end
 
-      def parse(data)
+      def parse(data) # rubocop:disable Metrics/CyclomaticComplexity
         init
 
         data.each do |element|
@@ -41,35 +47,35 @@ def parse(data)
 
           setSkosConceptFlag(current)
 
-          if current.isConcept? || current.isCollection?
-            if !@skosConcepts.has_key?(current.id)
-              concept = createSKOSConcept(current)
-              @skosConcepts[current.id] = concept
-            end
+          next unless current.isConcept? || current.isCollection?
 
-            if current.hasBroader
-              current.broader.each do |broaderId|
-                if !@broaders.has_key?(broaderId)
-                  @broaders[broaderId] = []
-                end
+          if !@skosConcepts.key?(current.id)
+            concept = createSKOSConcept(current)
+            @skosConcepts[current.id] = concept
+          end
 
-                @broaders[broaderId].push(current.id)
+          if current.hasBroader
+            current.broader.each do |broader_id|
+              if !@broaders.key?(broader_id)
+                @broaders[broader_id] = []
               end
-            # No broader, save the concept to the root
-            else
-              @rootElements.push(current.id)
+
+              @broaders[broader_id].push(current.id)
             end
+          # No broader, save the concept to the root
+          else
+            @rootElements.push(current.id)
           end
         end
 
-        @rootElements.each do |rootElementId|
-          setResults(@results, rootElementId)
+        @rootElements.each do |root_element_id|
+          setResults(@results, root_element_id)
         end
 
         @results
       end
 
-      # TODO check if this is still needed
+      # Maikel's patch
       def self.concepts
         @concepts ||= {}
       end
@@ -84,10 +90,8 @@ def createSKOSConcept(element) # rubocop:disable Naming/MethodName
           prefLabels: element.label
         )
         skosConcept.semanticType = element.type
-        # TODO check if this is still needed
-        # original patch by Maikel
+        # Maikel's patch
         self.class.concepts[element.id] = skosConcept
-
         skosConcept
       end
 
@@ -101,11 +105,11 @@ def init
         @useSkosConcept = false
       end
 
-      def setResults(parent, id)
+      def setResults(parent, id) # rubocop:disable Naming/MethodName
         name = getValueWithoutPrefix(id)
 
         if !parent.hasAttribute(name)
-          if @useSkosConcept && !@skosConcepts[id].nil?
+          if @useSkosConcept && @skosConcepts[id]
             parent.addAttribute(name, @skosConcepts[id])
           else
             parent.addAttribute(name, DataFoodConsortium::Connector::SKOSInstance.new)
@@ -113,7 +117,7 @@ def setResults(parent, id)
         end
 
         # Leaf concepts, stop the process
-        if !@broaders.has_key?(id)
+        if !@broaders.key?(id)
           parent.instance_variable_set("@#{name}", @skosConcepts[id])
           return
         end
@@ -125,15 +129,16 @@ def setResults(parent, id)
         end
       end
 
-      def setSkosConceptFlag(current)
+      def setSkosConceptFlag(current) # rubocop:disable Naming/MethodName
         @useSkosConcept = true if current.isConceptScheme? && matchingConceptSchemes(current)
       end
 
-      def matchingConceptSchemes(current)
-        regex = /#{CONCEPT_SCHEMES.join("|")}/
+      def matchingConceptSchemes(current) # rubocop:disable Naming/MethodName
+        regex = /#{CONCEPT_SCHEMES.join('|')}/
 
         current.id =~ regex
       end
     end
   end
 end
+# rubocop:enable Naming/VariableName

From 9628045e1c3d249a35962300f53d0dd5dd514881 Mon Sep 17 00:00:00 2001
From: Gaetan Craig-Riou <gaetan.riou@gmail.com>
Date: Mon, 4 Dec 2023 12:15:23 +1100
Subject: [PATCH 7/8] Fix indentation

---
 .../lib/data_food_consortium/connector/skos_concept.rb          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
index 5672e12e6b7..f6880214c28 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
@@ -5,7 +5,7 @@
 module DataFoodConsortium
   module Connector
     class SKOSConcept
-	    include DataFoodConsortium::Connector::SKOSHelper
+      include DataFoodConsortium::Connector::SKOSHelper
     end
   end
 end

From 021e292190e1d58c878614d8aeb7363a33ed8e33 Mon Sep 17 00:00:00 2001
From: Gaetan Craig-Riou <gaetan.riou@gmail.com>
Date: Mon, 4 Dec 2023 12:19:30 +1100
Subject: [PATCH 8/8] Add a quick patch description

---
 .../lib/data_food_consortium/connector/skos_concept.rb           | 1 +
 .../lib/data_food_consortium/connector/skos_helper.rb            | 1 +
 .../lib/data_food_consortium/connector/skos_parser_element.rb    | 1 +
 3 files changed, 3 insertions(+)

diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
index f6880214c28..ad8bbe266d9 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_concept.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+# Patch: Improve parsing of SKOS Concept. Will be fixed upstream
 require_relative 'skos_helper'
 
 module DataFoodConsortium
diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
index 4426fbf4f8d..e8b814678f9 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_helper.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+# Patch: Improve parsing of SKOS Concept. Will be fixed upstream
 module DataFoodConsortium
   module Connector
     module SKOSHelper
diff --git a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
index a44cec51e57..c8c684b8e48 100644
--- a/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
+++ b/engines/dfc_provider/lib/data_food_consortium/connector/skos_parser_element.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+# Patch: Improve parsing of SKOS Concept. Will be fixed upstream
 module DataFoodConsortium
   module Connector
     class SKOSParserElement