sequelize/lib/errors/validation/unique-constraint-error.ts

Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift and Snowflake’s Data Cloud. It features solid transaction support, relations, eager and lazy loading, read replication and more.

import { CommonErrorProperties, ErrorOptions } from '../base-error';
import ValidationError, { ValidationErrorItem } from '../validation-error';

interface UniqueConstraintErrorParent
  extends Error,
    Pick<CommonErrorProperties, 'sql'> {}

interface UniqueConstraintErrorOptions extends ErrorOptions {
  parent?: UniqueConstraintErrorParent;
  original?: UniqueConstraintErrorParent;
  errors?: ValidationErrorItem[];
  fields?: Record<string, unknown>;
  message?: string;
}

/**
 * Thrown when a unique constraint is violated in the database
 */
class UniqueConstraintError
  extends ValidationError
  implements CommonErrorProperties
{
  parent: UniqueConstraintErrorParent;
  original: UniqueConstraintErrorParent;
  fields: Record<string, unknown>;
  sql: string;

  constructor(options: UniqueConstraintErrorOptions) {
    options = options ?? {};
    options.parent = options.parent ?? { sql: '', name: '', message: '' };
    options.message =
      options.message || options.parent.message || 'Validation Error';
    options.errors = options.errors ?? [];
    super(options.message, options.errors, { stack: options.stack });

    this.name = 'SequelizeUniqueConstraintError';
    this.errors = options.errors;
    this.fields = options.fields ?? {};
    this.parent = options.parent;
    this.original = options.parent;
    this.sql = options.parent.sql;
  }
}

export default UniqueConstraintError;