fix(types): fix `ValidationErrorItem` types (#13108)

Co-authored-by: papb <papb1996@gmail.com>

lib/errors/validation-error.js

@@ -55,18 +55,18 @@ class ValidationError extends BaseError {
  */
 class ValidationErrorItem {
   /**
-   * Creates new validation error item
-   *
-   * @param {string} message An error message
-   * @param {string} type The type/origin of the validation error
-   * @param {string} path The field that triggered the validation error
-   * @param {string} value The value that generated the error
-   * @param {object} [inst] the DAO instance that caused the validation error
-   * @param {object} [validatorKey] a validation "key", used for identification
+   * Creates a new ValidationError item. Instances of this class are included in the `ValidationError.errors` property.
+   *
+   * @param {string} [message] An error message
+   * @param {string} [type] The type/origin of the validation error
+   * @param {string} [path] The field that triggered the validation error
+   * @param {string} [value] The value that generated the error
+   * @param {Model} [instance] the DAO instance that caused the validation error
+   * @param {string} [validatorKey] a validation "key", used for identification
    * @param {string} [fnName] property name of the BUILT-IN validator function that caused the validation error (e.g. "in" or "len"), if applicable
-   * @param {string} [fnArgs] parameters used with the BUILT-IN validator function, if applicable
+   * @param {Array} [fnArgs] parameters used with the BUILT-IN validator function, if applicable
    */
-  constructor(message, type, path, value, inst, validatorKey, fnName, fnArgs) {
+  constructor(message, type, path, value, instance, validatorKey, fnName, fnArgs) {
     /**
      * An error message
      *
@@ -77,21 +77,21 @@ class ValidationErrorItem {
     /**
      * The type/origin of the validation error
      *
-     * @type {string}
+     * @type {string | null}
      */
     this.type = null;
 
     /**
      * The field that triggered the validation error
      *
-     * @type {string}
+     * @type {string | null}
      */
     this.path = path || null;
 
     /**
      * The value that generated the error
      *
-     * @type {string}
+     * @type {string | null}
      */
     this.value = value !== undefined ? value : null;
 
@@ -100,28 +100,28 @@ class ValidationErrorItem {
     /**
      * The DAO instance that caused the validation error
      *
-     * @type {Model}
+     * @type {Model | null}
      */
-    this.instance = inst || null;
+    this.instance = instance || null;
 
     /**
      * A validation "key", used for identification
      *
-     * @type {string}
+     * @type {string | null}
      */
     this.validatorKey = validatorKey || null;
 
     /**
      * Property name of the BUILT-IN validator function that caused the validation error (e.g. "in" or "len"), if applicable
      *
-     * @type {string}
+     * @type {string | null}
      */
     this.validatorName = fnName || null;
 
     /**
      * Parameters used with the BUILT-IN validator function, if applicable
      *
-     * @type {string}
+     * @type {Array}
      */
     this.validatorArgs = fnArgs || [];
 

types/lib/errors.d.ts

+import Model from "./model";
+
 /**
  * The Base Error all Sequelize Errors inherit from.
  */
@@ -35,27 +37,51 @@ export class ValidationErrorItem {
   /** An error message */
   public readonly message: string;
 
-  /** The type of the validation error */
-  public readonly  type: string;
+  /** The type/origin of the validation error */
+  public readonly type: string | null;
 
   /** The field that triggered the validation error */
-  public readonly  path: string;
+  public readonly path: string | null;
 
   /** The value that generated the error */
-  public readonly  value: string;
+  public readonly value: string | null;
+
+  /** The DAO instance that caused the validation error */
+  public readonly instance: Model | null;
+
+  /** A validation "key", used for identification */
+  public readonly validatorKey: string | null;
+
+  /** Property name of the BUILT-IN validator function that caused the validation error (e.g. "in" or "len"), if applicable */
+  public readonly validatorName: string | null;
+
+  /** Parameters used with the BUILT-IN validator function, if applicable */
+  public readonly validatorArgs: unknown[];
 
   public readonly original: Error;
 
   /**
-   * Validation Error Item
-   * Instances of this class are included in the `ValidationError.errors` property.
+   * Creates a new ValidationError item. Instances of this class are included in the `ValidationError.errors` property.
    *
    * @param message An error message
-   * @param type The type of the validation error
+   * @param type The type/origin of the validation error
    * @param path The field that triggered the validation error
    * @param value The value that generated the error
-   */
-  constructor(message?: string, type?: string, path?: string, value?: string);
+   * @param instance the DAO instance that caused the validation error
+   * @param validatorKey a validation "key", used for identification
+   * @param fnName property name of the BUILT-IN validator function that caused the validation error (e.g. "in" or "len"), if applicable
+   * @param fnArgs parameters used with the BUILT-IN validator function, if applicable
+   */
+  constructor(
+    message?: string,
+    type?: string,
+    path?: string,
+    value?: string,
+    instance?: object,
+    validatorKey?: string,
+    fnName?: string,
+    fnArgs?: unknown[]
+  );
 }
 
 export interface CommonErrorProperties {