// 技术晨读
// uri: /readings/recent.json
func RecentReadingHandler(rw http.ResponseWriter, req *http.Request) {
limit := req.FormValue("limit")
if limit == "" {
limit = "7"
}
readings := service.FindReadings("0", limit, model.RtypeGo)
buf, err := json.Marshal(readings)
if err != nil {
logger.Errorln("[RecentReadingHandler] json.marshal error:", err)
fmt.Fprint(rw, `{"ok": 0, "error":"解析json出错"}`)
return
}
fmt.Fprint(rw, `{"ok": 1, "data":`+string(buf)+`}`)
}
// 晨读列表页
// uri: /readings
func ReadingsHandler(rw http.ResponseWriter, req *http.Request) {
limit := 20
lastId := req.FormValue("lastid")
if lastId == "" {
lastId = "0"
}
rtype, err := strconv.Atoi(req.FormValue("rtype"))
if err != nil {
rtype = model.RtypeGo
}
readings := service.FindReadings(lastId, "25", rtype)
if readings == nil {
// TODO:服务暂时不可用？
}
num := len(readings)
if num == 0 {
if lastId == "0" {
util.Redirect(rw, req, "/")
} else {
util.Redirect(rw, req, "/readings")
}
return
}
var (
hasPrev, hasNext bool
prevId, nextId int
)
if lastId != "0" {
prevId, _ = strconv.Atoi(lastId)
// 避免因为项目下线，导致判断错误（所以 > 5）
if prevId-readings[0].Id > 5 {
hasPrev = false
} else {
prevId += limit
hasPrev = true
}
}
if num > limit {
hasNext = true
readings = readings[:limit]
nextId = readings[limit-1].Id
} else {
nextId = readings[num-1].Id
}
pageInfo := map[string]interface{}{
"has_prev": hasPrev,
"prev_id": prevId,
"has_next": hasNext,
"next_id": nextId,
}
req.Form.Set(filter.CONTENT_TPL_KEY, "/template/readings/list.html")
// 设置模板数据
filter.SetData(req, map[string]interface{}{"activeReadings": "active", "readings": readings, "page": pageInfo, "rtype": rtype})
}