Added lookup one single book

Signed-off-by: kolaente <konrad@kola-entertainments.de>

models/book.go

@@ -1,5 +1,7 @@
 package models
 
+import "fmt"
+
 type Book struct {
 	ID int64 `xorm:"int(11) autoincr not null unique pk"`
 	Title string `xorm:"varchar(250) not null"`
@@ -17,4 +19,33 @@ type Book struct {
 
 func (Book) TableName() string{
 	return "books"
+}
+
+func GetBookById(ID string) (book Book, err error)  {
+	_, err = x.ID(ID).Get(&book)
+
+
+	// Get publisher
+	publisher := Publisher{ID: book.Publisher}
+	_, err = x.Get(&publisher)
+	if err != nil {
+		fmt.Println("Error getting publisher:", err)
+	}
+	book.PublisherFull = publisher
+
+	// Get all authors
+	var authors []Author
+	err = x.
+	Table("authors_books").
+		Join("INNER", "authors", "authors_books.author_id = authors.id").
+		Where("book_id = ?", book.ID).
+		Find(&authors)
+
+	if err != nil {
+		fmt.Println("Error getting authors:", err)
+	}
+
+	book.Authors = authors
+
+	return book, err
 }

routes/api/v1/book_show.go

@@ -0,0 +1,24 @@
+package v1
+
+import (
+	"github.com/labstack/echo"
+	"net/http"
+	"git.mowie.cc/konrad/Library/models"
+)
+
+func BookShow(c echo.Context) error {
+	bookID := c.Param("id")
+
+	if bookID == "" {
+		return c.JSON(http.StatusBadRequest, models.Message{"Book id cannot be empty."})
+	}
+
+	// Get book infos
+	book, err := models.GetBookById(bookID)
+
+	if err != nil {
+		return c.JSON(http.StatusInternalServerError, models.Message{"Could not get book infos"})
+	}
+
+	return c.JSON(http.StatusOK, book)
+}

routes/api/v1/books_list.go

@@ -7,7 +7,7 @@ import (
 	"git.mowie.cc/konrad/Library/models"
 )
 
-func List(c echo.Context) error {
+func BookList(c echo.Context) error {
 
 	list, err := models.ListBooks()
 

routes/routes.go

@@ -27,7 +27,8 @@ func RegisterRoutes(e *echo.Echo) {
 	// API Routes
 	a := e.Group("/api/v1")
 	// Lookup Books
-	a.GET("/books/list", apiv1.List)
+	a.GET("/books/list", apiv1.BookList)
+	a.GET("/books/:id", apiv1.BookShow)
 
 	// Lookup Authors
 
@@ -61,6 +62,7 @@ func RegisterRoutes(e *echo.Echo) {
 	/login 				   - Einloggen
 	/logout				   - ausloggen
 
+	/books/:id			   - Buch anzeigen
 	/books/:id/edit        - |Buch bearbeiten (inkl mengen)
 	/books/:id/delete	   - |Buch löschen
 	/books/search?s=se     - Suchen