i try to pass a model class as parameter, but typescript doesn't see methods, properties.
import type { Model } from 'sequelize';
const isExistsValidator = (model: typeof Model, field: string) => {
return async (value): boolean => {
const result = await model.findOne({ where: { [field]: value } }); // No overload matches this call.
// ...
};
};
I have tried some variants:
import type { Model, ModelStatic } from 'sequelize';
const isExistsValidator = <M extends Model>(model: ModelStatic<M>, field: string) {
// ...
const result = await model.findOne({ where: { [field]: value } });// Property 'findOne' does not exist on type
}
import type { Model } from 'sequelize';
const isExistsValidator = (model: Model, field: string) {
// ...
const result = await model.findOne({ where: { [field]: value } });// Property 'findOne' is a static member of type 'Model<any, any>'
How it will be use (something like this):
const isExistsName = isExistsValidator(UserModel, 'name');
// ...
if(await isExistsName('alex4answer')) {
throw new Error('Name already in use');
}
What am i doing wrong? i'm new in typescript