@tsed/schema/lib/esm/utils/withErrorMsg.js

JsonSchema module for Ts.ED Framework

import { deepMerge, useDecorators } from "@tsed/core";
import { JsonEntityFn } from "../decorators/common/jsonEntityFn.js";
export function withErrorMsg(errorKey, originalDecorator) {
    const schema = {};
    return ((...decoratorOptions) => {
        const decorator = useDecorators(originalDecorator(...decoratorOptions));
        decorator.Error = (message) => {
            schema.message = message;
            return useDecorators(decorator, schema.message &&
                JsonEntityFn((store) => {
                    // since errorMessage is a custom key, it is prefixed with a # to avoid conflict with JSON Schema keywords
                    const errorMessage = store.parentSchema.get("#errorMessage") || {};
                    if (errorKey === "required") {
                        store.parentSchema.customKey("errorMessage", deepMerge(errorMessage, {
                            [errorKey]: {
                                [store.propertyName]: message
                            }
                        }));
                    }
                    else {
                        store.itemSchema.customKey("errorMessage", deepMerge(errorMessage, {
                            [errorKey]: message
                        }));
                    }
                }));
        };
        return decorator;
    });
}