Add a way to get the identifier name of a model.

README.md

@@ -19,7 +19,7 @@
 </p>
 
 <p align="center">
-	<img alt="Version 3.1.0" src="https://img.shields.io/badge/version-3.1.0-blue" />
+	<img alt="Version 3.2.0" src="https://img.shields.io/badge/version-3.2.0-blue" />
 </p>
 
 ## Introduction

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@sharkitek/core",
-	"version": "3.1.0",
+	"version": "3.2.0",
 	"description": "TypeScript library for well-designed model architectures.",
 	"keywords": [
 		"deserialization",

src/Model/Model.ts

@@ -54,6 +54,11 @@ export type ModelClass<ModelType extends Model<Shape, IdentifierType<Shape, Iden
  */
 export type IdentifierType<Shape extends ModelShape, K extends keyof Shape> = Shape[K]["_sharkitek"];
 
+/**
+ * Identifier name type.
+ */
+export type IdentifierNameType<Shape> = Shape extends ModelShape ? keyof Shape : unknown;
+
 /**
  * Interface of a Sharkitek model definition.
  */
@@ -64,6 +69,11 @@ export interface ModelDefinition<Shape extends ModelShape, IdentifierType, Model
 	 */
 	getIdentifier(): IdentifierType;
 
+	/**
+	 * Get model identifier name.
+	 */
+	getIdentifierName(): IdentifierNameType<Shape>;
+
 	/**
 	 * Serialize the model.
 	 */
@@ -103,7 +113,7 @@ export interface ModelDefinition<Shape extends ModelShape, IdentifierType, Model
  * @param shape Model shape definition.
  * @param identifier Identifier property name.
  */
-export function model<ModelType extends Model<Shape, IdentifierType<Shape, Identifier>>, Shape extends ModelShape, Identifier extends keyof Shape = any>(
+export function model<ModelType extends Model<Shape, IdentifierType<Shape, Identifier>>, Shape extends ModelShape, Identifier extends IdentifierNameType<Shape> = any>(
 	shape: Shape,
 	identifier?: Identifier,
 ): ModelClass<ModelType, Shape, Identifier>
@@ -160,6 +170,11 @@ export function model<ModelType extends Model<Shape, IdentifierType<Shape, Ident
 				return (this as PropertiesModel<Shape>)?.[identifier];
 			}
 
+			getIdentifierName(): IdentifierNameType<Shape>
+			{
+				return identifier;
+			}
+
 			serialize(): SerializedModel<Shape>
 			{
 				// Creating an empty (=> partial) serialized object.