render the book description as HTML

database_test.go

@@ -52,9 +52,10 @@ func testEbook() *Book {
 	return &Book{
 		Id: NewID(),
 		Metadata: &Metadata{
-			Title:   "20,000 Leagues under the sea",
-			Creator: []string{"Jules Verne"},
-			ISBN:    []string{"1234"},
+			Title:       "20,000 Leagues under the sea",
+			Creator:     []string{"Jules Verne"},
+			ISBN:        []string{"1234"},
+			Description: "A pretty cool book.",
 		},
 	}
 }

htdocs/templates/book.html

@@ -28,8 +28,8 @@
     </p>
     {{end}}
 
-    {{if .Book.Metadata.Description}}
-    <p>{{.Book.Metadata.Description}}</p>
+    {{if .Description}}
+    <p>{{.Description}}</p>
     {{end}}
 
     {{range $i, $f := .Files}}

web.go

@@ -149,11 +149,18 @@ func (s *uiServer) handleShowBook(book *Book, w http.ResponseWriter, req *http.R
 		return
 	}
 
+	// The book's Description, if present, should be rendered
+	// directly as HTML. So we deal with it separately.
 	ctx := struct {
-		Query string
-		Book  *Book
-		Files []*File
-	}{Book: book, Files: files}
+		Query       string
+		Book        *Book
+		Files       []*File
+		Description template.HTML
+	}{
+		Book:        book,
+		Files:       files,
+		Description: template.HTML(book.Metadata.Description),
+	}
 	render("book.html", w, &ctx)
 }