Added address class and errors

ref #1

src/errors/AddressErrors.ts

@@ -0,0 +1,57 @@
+import { IsString } from 'class-validator';
+import { BadRequestError } from 'routing-controllers';
+
+/**
+ * Error to throw when an address's postal code fails validation.
+ */
+export class AddressPostalCodeInvalidError extends BadRequestError {
+	@IsString()
+	name = "AddressPostalCodeInvalidError"
+
+	@IsString()
+	message = "The postal code you provided is invalid. \n Please check if your postal code follows the postal code validation guidelines."
+}
+
+/**
+ * Error to throw when an non-empty address's first line isn't set.
+ */
+export class AddressFirstLineEmptyError extends BadRequestError {
+	@IsString()
+	name = "AddressFirstLineEmptyError"
+
+	@IsString()
+	message = "You provided a empty first address line. \n If you want an empty address please set all propertys to null. \n For non-empty addresses the following fields have to be set: address1, postalcode, city, country"
+}
+
+/**
+ * Error to throw when an non-empty address's postal code isn't set.
+ */
+export class AddressPostalCodeEmptyError extends BadRequestError {
+	@IsString()
+	name = "AddressPostalCodeEmptyError"
+
+	@IsString()
+	message = "You provided a empty postal code. \n If you want an empty address please set all propertys to null. \n For non-empty addresses the following fields have to be set: address1, postalcode, city, country"
+}
+
+/**
+ * Error to throw when an non-empty address's city isn't set.
+ */
+export class AddressCityEmptyError extends BadRequestError {
+	@IsString()
+	name = "AddressCityEmptyError"
+
+	@IsString()
+	message = "You provided a empty city. \n If you want an empty address please set all propertys to null. \n For non-empty addresses the following fields have to be set: address1, postalcode, city, country"
+}
+
+/**
+ * Error to throw when an non-empty address's country isn't set.
+ */
+export class AddressCountryEmptyError extends BadRequestError {
+	@IsString()
+	name = "AddressCountryEmptyError"
+
+	@IsString()
+	message = "You provided a empty country. \n If you want an empty address please set all propertys to null. \n For non-empty addresses the following fields have to be set: address1, postalcode, city, country"
+}