Implemented permission updateing

ref #6

src/errors/PermissionErrors.ts

@@ -22,4 +22,15 @@ export class PermissionIdsNotMatchingError extends NotAcceptableError {
 
 	@IsString()
 	message = "The id's don't match!! \n And if you wanted to change a permission's id: This isn't allowed"
+}
+
+/**
+ * Error to throw when a permission get's provided without a principal.
+ */
+export class PermissionNeedsPrincipalError extends NotAcceptableError {
+	@IsString()
+	name = "PermissionNeedsPrincipalError"
+
+	@IsString()
+	message = "You provided no principal for this permission."
 }

src/errors/PrincipalErrors.ts

@@ -0,0 +1,24 @@
+import { IsString } from 'class-validator';
+import { NotAcceptableError, NotFoundError } from 'routing-controllers';
+
+/**
+ * Error to throw when a user couldn't be found.
+ */
+export class PrincipalNotFoundError extends NotFoundError {
+	@IsString()
+	name = "PrincipalNotFoundError"
+
+	@IsString()
+	message = "Principal not found!"
+}
+
+/**
+ * Error to throw, when a provided runnerOrganisation doesn't belong to the accepted types.
+ */
+export class PrincipalWrongTypeError extends NotAcceptableError {
+	@IsString()
+	name = "PrincipalWrongTypeError"
+
+	@IsString()
+	message = "The princial must have an existing principal's id. \n You provided a object of another type."
+}

src/errors/PrincipalsErrors.ts

@@ -1,13 +0,0 @@
-import { IsString } from 'class-validator';
-import { NotFoundError } from 'routing-controllers';
-
-/**
- * Error to throw when a user couldn't be found.
- */
-export class PrincipalNotFoundError extends NotFoundError {
-	@IsString()
-	name = "PrincipalNotFoundError"
-
-	@IsString()
-	message = "Principal not found!"
-}