feat: add decorator name to validation metadata

src/metadata/ValidationMetadata.ts

@@ -14,6 +14,11 @@ export class ValidationMetadata {
    */
   type: string;
 
+  /**
+   * Validator name.
+   */
+  name?: string;
+
   /**
    * Target class to which this validation is applied.
    */
@@ -70,6 +75,7 @@ export class ValidationMetadata {
 
   constructor(args: ValidationMetadataArgs) {
     this.type = args.type;
+    this.name = args.name;
     this.target = args.target;
     this.propertyName = args.propertyName;
     this.constraints = args?.constraints;

src/metadata/ValidationMetadataArgs.ts

@@ -9,6 +9,11 @@ export interface ValidationMetadataArgs {
    */
   type: string;
 
+  /**
+   * Validator name.
+   */
+  name?: string;
+
   /**
    * Object that is used to be validated.
    */

src/register-decorator.ts

@@ -76,6 +76,7 @@ export function registerDecorator(options: ValidationDecoratorOptions): void {
 
   const validationMetadataArgs: ValidationMetadataArgs = {
     type: options.name && ValidationTypes.isValid(options.name) ? options.name : ValidationTypes.CUSTOM_VALIDATION,
+    name: options.name,
     target: options.target,
     propertyName: options.propertyName,
     validationOptions: options.options,

src/validation-schema/ValidationSchema.ts

@@ -21,6 +21,11 @@ export interface ValidationSchema {
        */
       type: string;
 
+      /**
+       * Validator name.
+       */
+      name?: string;
+
       /**
        * Constraints set by validation type.
        */

src/validation-schema/ValidationSchemaToMetadataTransformer.ts

@@ -19,6 +19,7 @@ export class ValidationSchemaToMetadataTransformer {
         };
         const args: ValidationMetadataArgs = {
           type: validation.type,
+          name: validation.name,
           target: schema.name,
           propertyName: property,
           constraints: validation.constraints,