78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
package main
|
|
|
|
import (
|
|
"labix.org/v2/mgo"
|
|
"labix.org/v2/mgo/bson"
|
|
"net/http"
|
|
"strconv"
|
|
"strings"
|
|
)
|
|
|
|
const (
|
|
ITEMS_PAGE = 10
|
|
)
|
|
|
|
func buildQuery(q string) bson.M {
|
|
var reg []bson.RegEx
|
|
query := bson.M{}
|
|
words := strings.Split(q, " ")
|
|
for _, w := range words {
|
|
tag := strings.SplitN(w, ":", 2)
|
|
if len(tag) > 1 {
|
|
query[tag[0]] = bson.RegEx{tag[1], "i"}
|
|
} else {
|
|
reg = append(reg, bson.RegEx{w, "i"})
|
|
}
|
|
}
|
|
if len(reg) > 0 {
|
|
query["keywords"] = bson.M{"$all": reg}
|
|
}
|
|
return query
|
|
}
|
|
|
|
type searchData struct {
|
|
S Status
|
|
Found int
|
|
Books []Book
|
|
Page int
|
|
Next string
|
|
Prev string
|
|
}
|
|
|
|
func searchHandler(coll *mgo.Collection) func(http.ResponseWriter, *http.Request) {
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
err := r.ParseForm()
|
|
if err != nil {
|
|
http.Error(w, err.Error(), http.StatusInternalServerError)
|
|
return
|
|
}
|
|
req := strings.Join(r.Form["q"], " ")
|
|
res, _ := GetBook(coll, buildQuery(req))
|
|
|
|
page := 0
|
|
if len(r.Form["p"]) != 0 {
|
|
page, err = strconv.Atoi(r.Form["p"][0])
|
|
if err != nil || len(res) < ITEMS_PAGE*page {
|
|
page = 0
|
|
}
|
|
}
|
|
|
|
var data searchData
|
|
data.S = GetStatus(w, r)
|
|
data.S.Search = req
|
|
data.Found = len(res)
|
|
if len(res) > ITEMS_PAGE*(page+1) {
|
|
data.Books = res[ITEMS_PAGE*page : ITEMS_PAGE*(page+1)]
|
|
} else {
|
|
data.Books = res[ITEMS_PAGE*page:]
|
|
}
|
|
data.Page = page + 1
|
|
if len(res) > (page+1)*ITEMS_PAGE {
|
|
data.Next = "/search/?q=" + req + "&p=" + strconv.Itoa(page+1)
|
|
}
|
|
if page > 0 {
|
|
data.Prev = "/search/?q=" + req + "&p=" + strconv.Itoa(page-1)
|
|
}
|
|
loadTemplate(w, "search", data)
|
|
}
|
|
}
|