Simple Kysely Plugins to prefix table name

kysely-table-prefixed.ts

import {
  type KyselyPlugin,
  type PluginTransformQueryArgs,
  type RootOperationNode,
  type PluginTransformResultArgs,
  type QueryResult,
  type UnknownRow,
  OperationNodeTransformer,
  TableNode,
} from "kysely";

export class KyselyTablePrefixed implements KyselyPlugin {
  #transformer: TablePrefixedTransformers;
  constructor(prefix: string) {
    this.#transformer = new TablePrefixedTransformers(prefix);
  }
  transformQuery(args: PluginTransformQueryArgs): RootOperationNode {
    return this.#transformer.transformNode(args.node);
  }
  async transformResult(
    args: PluginTransformResultArgs
  ): Promise<QueryResult<UnknownRow>> {
    return args.result;
  }
}

class TablePrefixedTransformers extends OperationNodeTransformer {
  #prefix: string;
  constructor(prefix: string) {
    super();
    this.#prefix = prefix;
  }
  protected transformTable(node: TableNode): TableNode {
    return {
      ...node,
      table: {
        ...node.table,
        identifier: {
          ...node.table.identifier,
          name: this.#prefix + node.table.identifier.name,
        },
      },
    };
  }
}