Error message TS2693: Trying to use 'T' as a value although it is only meant to be a type

Experiencing an issue where I need to create an abstract class that can connect to the appropriate repository based on the initialization type T. However, there is a challenge in calling the value of T instead of the type as a parameter for the getRepository method from the typeorm package.

import {getDataSource} from "../utils/data-source";
import {Category} from "../model/category";
import {EntityTarget, ObjectLiteral} from "typeorm";

export abstract class Controller<T> {
    protected repository;

    public init = async () => {
        this.repository = (await getDataSource()).getRepository(T);
    };
}

The line 'getRepository(T);' presents the mentioned problem in the title.

Answer №1

If there is no superior alternative, this method is the most straightforward approach to achieving it

import {fetchData} from "../utils/data-fetcher";

export abstract class Manager {
    protected database;

    public initialize = async (category) => {
        this.database = (await fetchData()).getDatabase(category);
    };
}

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