Implemented the getter for loading the postalcodelocale from env

ref #43

src/config.ts

@@ -1,10 +1,13 @@
 import { config as configDotenv } from 'dotenv';
+import ValidatorJS from 'validator';
+
 configDotenv();
 export const config = {
     internal_port: parseInt(process.env.APP_PORT) || 4010,
     development: process.env.NODE_ENV === "production",
     jwt_secret: process.env.JWT_SECRET || "secretjwtsecret",
-    phone_validation_countrycode: process.env.PHONE_COUNTRYCODE || "ZZ"
+    phone_validation_countrycode: process.env.PHONE_COUNTRYCODE || "ZZ",
+    postalcode_validation_countrycode: getPostalCodeLocale()
 }
 let errors = 0
 if (typeof config.internal_port !== "number") {
@@ -19,4 +22,13 @@ if (config.phone_validation_countrycode.length !== 2) {
 if (typeof config.development !== "boolean") {
     errors++
 }
+function getPostalCodeLocale(): any {
+    try {
+        const stringArray: String[] = ValidatorJS.isPostalCodeLocales;
+        let index = stringArray.indexOf(process.env.POSTALCODE_COUNTRYCODE);
+        return ValidatorJS.isPostalCodeLocales[index];
+    } catch (error) {
+        return null;
+    }
+}
 export let e = errors

src/models/actions/CreateAddress.ts

@@ -1,4 +1,5 @@
 import { IsNotEmpty, IsOptional, IsPostalCode, IsString } from 'class-validator';
+import { config } from '../../config';
 import { Address } from '../entities/Address';
 
 /**
@@ -35,7 +36,7 @@ export class CreateAddress {
      */
     @IsString()
     @IsNotEmpty()
-    @IsPostalCode("DE")
+    @IsPostalCode(config.postalcode_validation_countrycode)
     postalcode: string;
 
     /**

src/models/entities/Address.ts

@@ -6,6 +6,7 @@ import {
   IsString
 } from "class-validator";
 import { Column, Entity, OneToMany, PrimaryGeneratedColumn } from "typeorm";
+import { config } from '../../config';
 import { Participant } from "./Participant";
 import { RunnerOrganisation } from "./RunnerOrganisation";
 
@@ -52,12 +53,11 @@ export class Address {
   /**
    * The address's postal code.
    * This will get checked against the postal code syntax for the configured country.
-   * TODO: Implement the config option. 
    */
   @Column()
   @IsString()
   @IsNotEmpty()
-  @IsPostalCode("DE")
+  @IsPostalCode(config.postalcode_validation_countrycode)
   postalcode: string;
 
   /**