Go lang increment number - postgresql

Question

I can't make increment number of rows on my table..
I used revel framework, and try make simple crud.
The question is: "How to show increment number with Golang.?".
This my code of controller book.go
This controller to show data from postgresql database.
func allBooks() ([]models.Book, error) {
//Retrieve
books := []models.Book{}
rows, err := db.Query("SELECT id, name, author, pages, publication_date FROM books order by id")
defer rows.Close()
if err == nil {
for rows.Next() {
var id int
var name string
var author string
var pages int
var publicationDate pq.NullTime
err = rows.Scan(&id, &name, &author, &pages, &publicationDate)
if err == nil {
currentBook := models.Book{ID: id, Name: name, Author: author, Pages: pages}
if publicationDate.Valid {
currentBook.PublicationDate = publicationDate.Time
}
books = append(books, currentBook)
} else {
return books, err
}
}
} else {
return books, err
}
return books, err
}
And this html on my views index.html:
<table class="table table-striped">
<thead>
<tr>
<th>No</th>
<th>ID</th>
<th>Name</th>
<th>Author</th>
<th>Pages</th>
<th>Publication Date</th>
<th>Action</th>
</tr>
</thead>
<tbody>
{{range .books}}
<tr>
<td>{{.Nomor}}</td>
<td>{{.ID}}</td>
<td>{{.Name}}</td>
<td>{{.Author}}</td>
<td>{{.Pages}}</td>
<td>{{.PublicationDateStr}}</td>
</tr>
{{end}}
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>New book</td>
</tr>
</tbody>
</table>
hope result like this
|No.|ID |Name |Author | Pages | Publication Date |
|1 |2 |Jack |Holly | 255 | 2017-10-15 |
|2 |4 |hans |Holly | 255 | 2017-10-15 |
|3 |6 |Juri |Holly | 255 | 2017-10-15 |
|4 |7 |Hank |Holly | 255 | 2017-10-15 |
but what I get is
|No.|ID |Name |Author | Pages | Publication Date |
|0 |2 |Jack |Holly | 255 | 2017-10-15 |
|0 |4 |hans |Holly | 255 | 2017-10-15 |
|0 |6 |Juri |Holly | 255 | 2017-10-15 |
|0 |7 |Hank |Holly | 255 | 2017-10-15 |

Answer 1

I do not see the property Nomor populated anywhere.
You should keep a counter and do something like
...
currentBook := models.Book{Nomor: count, ID: id, Name: name, Author: author, Pages: pages}
count = count + 1
...

Answer 2

You could try assinging the values of slice index to a variable and try printing it, something like
{{range $index, _ := .books}}
and use the index instead of Nomor