// devices is the logic implementation of the Devices page.
func devices(p *page.Params) {
c := p.AppCtx
fv := p.Request.PostFormValue
// Initial values:
p.Custom["SearchPrecision"] = 1000
p.Custom["LogsRetention"] = 60
// Detect form submits:
switch {
case fv("submitAdd") != "":
// Add New Device form submitted!
// Checks:
switch {
case !checkName(p, fv("name")):
case !checkSearchPrecision(p, fv("searchPrecision")):
case !checkLogsRetention(p, fv("logsRetention")):
}
if p.ErrorMsg == nil {
// All data OK, save new Device
searchPrecision, _ := strconv.ParseInt(fv("searchPrecision"), 10, 64)
logsRetention, _ := strconv.Atoi(fv("logsRetention"))
dev := ds.Device{fv("name"), 0, logsRetention, "", time.Now(), 0}
dev.SetSearchPrecision(searchPrecision)
genNewRandID(p, &dev)
if p.Err != nil {
return
}
if _, p.Err = datastore.Put(c, datastore.NewIncompleteKey(c, ds.ENameDevice, p.Account.GetKey(c)), &dev); p.Err != nil {
return // Datastore error
}
p.InfoMsg = "New Device saved successfully."
// Clear from memcache:
cache.ClearDevListForAccKey(c, p.Account.GetKey(c))
} else {
// Submitted values
p.Custom["Name"] = fv("name")
p.Custom["SearchPrecision"] = fv("searchPrecision")
p.Custom["LogsRetention"] = fv("logsRetention")
}
case fv("submitRename") != "":
// Rename Device form submitted!
if !checkName(p, fv("name")) {
break
}
if devID, err := strconv.ParseInt(string(fv("devID")), 10, 64); err != nil {
p.ErrorMsg = "Invalid Device!"
} else {
devKey := datastore.NewKey(c, ds.ENameDevice, "", devID, p.Account.GetKey(c))
var dev ds.Device
if err = datastore.Get(c, devKey, &dev); err != nil {
if err == datastore.ErrNoSuchEntity {
p.ErrorMsg = "You do not have access to the specified Device!"
} else {
// Real datastore error
p.Err = err
return
}
} else {
// Proceed to rename
dev.Name = fv("name")
if _, p.Err = datastore.Put(c, devKey, &dev); p.Err != nil {
return // Datastore error
}
p.InfoMsg = "Device renamed successfully."
// Clear from memcache:
cache.ClearDevListForAccKey(c, p.Account.GetKey(c))
cache.ClearDeviceForRandID(c, dev.RandID)
dev.KeyID = devID // This is important (device is loaded freshly and not yet set)!
cache.CacheDevice(c, &dev)
}
}
case fv("submitGenNewKey") != "":
// Generate New Key form submitted!
if devID, err := strconv.ParseInt(string(fv("devID")), 10, 64); err != nil {
p.ErrorMsg = "Invalid Device!"
} else {
devKey := datastore.NewKey(c, ds.ENameDevice, "", devID, p.Account.GetKey(c))
var dev ds.Device
if err = datastore.Get(c, devKey, &dev); err != nil {
if err == datastore.ErrNoSuchEntity {
p.ErrorMsg = "You do not have access to the specified Device!"
} else {
// Real datastore error
p.Err = err
return
}
} else {
// Proceed to generate new key
// Store old RandID to remove it from cache if saving succeeds
oldRandID := dev.RandID
genNewRandID(p, &dev)
if p.Err != nil {
return
}
if _, p.Err = datastore.Put(c, devKey, &dev); p.Err != nil {
return // Datastore error
}
p.InfoMsg = template.HTML("New Key generated successfully.")
p.ImportantMsg = template.HTML("<b>Important!</b> You have to update the URL in the client application else further GPS tracking calls will be discarded!")
cache.ClearDeviceForRandID(c, oldRandID)
dev.KeyID = devID // This is important (device is loaded freshly and not yet set)!
cache.CacheDevice(c, &dev)
}
}
}
q := datastore.NewQuery(ds.ENameDevice).Ancestor(p.Account.GetKey(c)).Order(ds.PNameName)
var devices []*ds.Device
var devKeys []*datastore.Key
if devKeys, p.Err = q.GetAll(c, &devices); p.Err != nil {
return
}
for i := range devices {
devices[i].KeyID = devKeys[i].IntID()
}
p.Custom["Devices"] = devices
}
