/**
* データストアから指定された単語を削除する
* API
*/
func delete(w http.ResponseWriter, r *http.Request) {
var c appengine.Context
var u *user.User
var query *datastore.Query
var word string
var iterator *datastore.Iterator
var key *datastore.Key
var err error
var entity Entity
word = r.FormValue("word")
if word == "" {
return
}
c = appengine.NewContext(r)
u = user.Current(c)
query = datastore.NewQuery("words").Filter("UserID =", u.ID).Filter("Word =", word)
iterator = query.Run(c)
for {
key, err = iterator.Next(&entity)
if err != nil {
break
}
err = datastore.Delete(c, key)
Check(c, err)
}
}
// Finds the first matching hot bid in the list, and deletes it. Then, returns
// the corresponding "real" bid.
func findValidBid(c appengine.Context, iter *datastore.Iterator, now time.Time) (*datastore.Key, *Bid, error) {
for {
var hot hotBid
key, e := iter.Next(hotBidCodec{&hot})
if e == datastore.Done {
break
} else if e != nil {
// Error case
return nil, nil, e
}
if now.Before(hot.Expires) {
if err := datastore.Delete(c, key); err != nil {
return nil, nil, err
}
var bid Bid
if err := datastore.Get(c, hot.BidKey, bidCodec{&bid}); err != nil {
return nil, nil, err
}
return hot.BidKey, &bid, nil
}
}
return nil, nil, nil
}
/**
* すべての単語リストを取得する
*/
func get(c appengine.Context, u *user.User) []Entity {
var result []Entity
var query *datastore.Query
var err error
var iterator *datastore.Iterator
var entity *Entity
query = datastore.NewQuery("words").Filter("UserID =", u.ID)
Check(c, err)
err = nil
result = make([]Entity, 0)
entity = new(Entity)
for iterator = query.Run(c); ; {
_, err = iterator.Next(entity)
if err != nil {
break
}
result = append(result, *entity)
}
return result
}