added bookstruct checking when arriving

models/books_add_update.go

@@ -1,5 +1,7 @@
 package models
 
+import "fmt"
+
 /**
 ::USAGE::
 
@@ -18,6 +20,11 @@ sie in die Datenbank eingetragen und mit dem Buch verknüpft.
 // AddOrUpdateBook adds a new book or updates an existing one, it takes a book struct with author and publisher. Inserts them if they don't already exist
 func AddOrUpdateBook(book Book) (newBook Book, err error) {
 
+	// Check if we have at least a booktitle
+	if book.Title == "" {
+		return Book{}, fmt.Errorf("the book should at least have a title")
+	}
+
 	// Take Publisher, check if it exists. If not, insert it
 	exists := false
 	publisherid := book.Publisher
@@ -28,8 +35,6 @@ func AddOrUpdateBook(book Book) (newBook Book, err error) {
 		}
 	}
 
-	// TODO: Check for empty values, should have at least a title. If no publisher is given (aka ID=0 & Name=""), don't insert an empty one.
-
 	_, exists, err = GetPublisherByID(publisherid)
 	if err != nil {
 		return Book{}, err