Add ArrayHasLessThanOrEqualToOneObject

Author: JeremyB1298

ValueTransformers.xcodeproj/project.pbxproj

@@ -26,6 +26,7 @@
 		05D3737220ED96D6007FE14A /* ValueTransformersTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 05D3737120ED96D6007FE14A /* ValueTransformersTests.m */; };
 		05D3737420ED96D6007FE14A /* ValueTransformers.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 05CD4ABA20ED7CD100DBDE99 /* ValueTransformers.framework */; };
 		05E4C883271F142600A07D92 /* BytesToString.swift in Sources */ = {isa = PBXBuildFile; fileRef = 05E4C882271F142600A07D92 /* BytesToString.swift */; };
+		36BF01EF2E2536ED005C1DFD /* ArrayHasLessThanOrEqualToOneObject.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36BF01EE2E2536E6005C1DFD /* ArrayHasLessThanOrEqualToOneObject.swift */; };
 		E295FBA32A65426C003C5F68 /* DateToString.swift in Sources */ = {isa = PBXBuildFile; fileRef = E295FBA22A65426C003C5F68 /* DateToString.swift */; };
 		EF0F53592715DB6100BE981A /* SetIsEmpty.swift in Sources */ = {isa = PBXBuildFile; fileRef = EF0F53582715DB6100BE981A /* SetIsEmpty.swift */; };
 		EF0F535B2715DD1A00BE981A /* SetIsNotEmpty.swift in Sources */ = {isa = PBXBuildFile; fileRef = EF0F535A2715DD1900BE981A /* SetIsNotEmpty.swift */; };
@@ -110,6 +111,7 @@
 		05E4C880271F141400A07D92 /* LICENSE */ = {isa = PBXFileReference; lastKnownFileType = text; path = LICENSE; sourceTree = "<group>"; };
 		05E4C881271F141400A07D92 /* CODE_OF_CONDUCT.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = CODE_OF_CONDUCT.md; sourceTree = "<group>"; };
 		05E4C882271F142600A07D92 /* BytesToString.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BytesToString.swift; sourceTree = "<group>"; };
+		36BF01EE2E2536E6005C1DFD /* ArrayHasLessThanOrEqualToOneObject.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ArrayHasLessThanOrEqualToOneObject.swift; sourceTree = "<group>"; };
 		E295FBA22A65426C003C5F68 /* DateToString.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DateToString.swift; sourceTree = "<group>"; };
 		EF0F53582715DB6100BE981A /* SetIsEmpty.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SetIsEmpty.swift; sourceTree = "<group>"; };
 		EF0F535A2715DD1900BE981A /* SetIsNotEmpty.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SetIsNotEmpty.swift; sourceTree = "<group>"; };
@@ -259,6 +261,7 @@
 		0509122720E55CB5009EF90C /* ValueTransformers */ = {
 			isa = PBXGroup;
 			children = (
+				36BF01EE2E2536E6005C1DFD /* ArrayHasLessThanOrEqualToOneObject.swift */,
 				05D3734920ED91E5007FE14A /* ArrayHasMoreThanOneObject.swift */,
 				05D3734820ED91E5007FE14A /* ArrayHasOnlyOneObject.swift */,
 				05D3734420ED91E5007FE14A /* ArrayIsEmpty.swift */,
@@ -446,6 +449,7 @@
 				05D3736320ED91E5007FE14A /* ArrayHasOnlyOneObject.swift in Sources */,
 				05D3736020ED91E5007FE14A /* StringIsEmpty.swift in Sources */,
 				E295FBA32A65426C003C5F68 /* DateToString.swift in Sources */,
+				36BF01EF2E2536ED005C1DFD /* ArrayHasLessThanOrEqualToOneObject.swift in Sources */,
 				05E4C883271F142600A07D92 /* BytesToString.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

ValueTransformers/ArrayHasLessThanOrEqualToOneObject.swift

@@ -0,0 +1,38 @@
+/*******************************************************************************
+ * Copyright (c) 2025, DigiDNA
+ * All rights reserved
+ *
+ * Unauthorised copying of this copyrighted work, via any medium is strictly
+ * prohibited.
+ * Proprietary and confidential.
+ ******************************************************************************/
+
+import Foundation
+
+@objc( VTArrayHasLessThanOrEqualToOneObject )
+public class ArrayHasLessThanOrEqualToOneObject: ValueTransformer
+{
+    @objc
+    public override class func transformedValueClass() -> AnyClass
+    {
+        return NSNumber.self
+    }
+
+    @objc
+    public override class func allowsReverseTransformation() -> Bool
+    {
+        return false
+    }
+
+    @objc
+    public override func transformedValue( _ value: Any? ) -> Any?
+    {
+        guard let array = value as? NSArray
+        else
+        {
+            return NSNumber( booleanLiteral: false )
+        }
+
+        return array.count <= 1 ? NSNumber( booleanLiteral: true ) : NSNumber( booleanLiteral: false )
+    }
+}