89 lines
1.8 KiB
Go
89 lines
1.8 KiB
Go
package database
|
|
|
|
import (
|
|
"errors"
|
|
"labix.org/v2/mgo"
|
|
"labix.org/v2/mgo/bson"
|
|
)
|
|
|
|
const (
|
|
books_coll = "books"
|
|
)
|
|
|
|
type Book struct {
|
|
Id string `bson:"_id"`
|
|
Title string
|
|
Author []string
|
|
Contributor string
|
|
Publisher string
|
|
Description string
|
|
Subject []string
|
|
Date string
|
|
Lang []string
|
|
Isbn string
|
|
Type string
|
|
Format string
|
|
Source string
|
|
Relation string
|
|
Coverage string
|
|
Rights string
|
|
Meta string
|
|
File bson.ObjectId
|
|
FileSize int
|
|
Cover bson.ObjectId
|
|
CoverSmall bson.ObjectId
|
|
Active bool
|
|
Keywords []string
|
|
}
|
|
|
|
func addBook(coll *mgo.Collection, book interface{}) error {
|
|
return coll.Insert(book)
|
|
}
|
|
|
|
func getBooks(coll *mgo.Collection, query bson.M, length int, start int) (books []Book, num int, err error) {
|
|
q := coll.Find(query).Sort("-_id")
|
|
num, err = q.Count()
|
|
if err != nil {
|
|
return
|
|
}
|
|
if start != 0 {
|
|
q = q.Skip(start)
|
|
}
|
|
if length != 0 {
|
|
q = q.Limit(length)
|
|
}
|
|
|
|
err = q.All(&books)
|
|
for i, b := range books {
|
|
books[i].Id = bson.ObjectId(b.Id).Hex()
|
|
}
|
|
return
|
|
}
|
|
|
|
func getBookId(coll *mgo.Collection, id string) (Book, error) {
|
|
var book Book
|
|
if !bson.IsObjectIdHex(id) {
|
|
return book, errors.New("Not valid book id")
|
|
}
|
|
|
|
err := coll.FindId(bson.ObjectIdHex(id)).One(&book)
|
|
book.Id = bson.ObjectId(book.Id).Hex()
|
|
return book, err
|
|
}
|
|
|
|
func deleteBook(coll *mgo.Collection, id bson.ObjectId) error {
|
|
return coll.Remove(bson.M{"_id": id})
|
|
}
|
|
|
|
func updateBook(coll *mgo.Collection, id bson.ObjectId, data interface{}) error {
|
|
return coll.Update(bson.M{"_id": id}, bson.M{"$set": data})
|
|
}
|
|
|
|
func bookActive(coll *mgo.Collection, id bson.ObjectId) bool {
|
|
var book Book
|
|
err := coll.Find(bson.M{"_id": id}).One(&book)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
return book.Active
|
|
}
|