Cursor for running through big datasets.

[trading-peter]

Hi,

I'm trying out clover for an easy and portable way of storing stock market price data. And it works good enough for my usecase in general. The only thing I was wondering is if there is support for cursors? Right now I'm doing a FindAll() which takes pretty long and obv. causes the whole chunk of data to be stored in memory.

It would be awesome if something like this was possible

cond := clover.Field("openTime").GtEq(tw.Start).And(clover.Field("openTime").LtEq(tw.End))
cursor, err := s.db.Query("candles").Where(cond).Sort(clover.SortOption{"openTime", 1}).Cursor()

for cursor.Next() {
  cursor.Unmarshal(&myStruct)

  // do something with myStruct
}

[ostafen]

Hi, @trading-peter. You can use the ForEach() method for this purpose, which calls a supplied function for each document

[trading-peter]

Ooooh so nice! How did I miss that hahaha. Thanks you!