If I do a query using a sortBy: ; then i can check if sortComplete. Using a query without sortBy:, I can know the total number of items by calling lastKnownSize. If I do a sortBy: query, the lastKnownSize returns the max number already sorted (which is not ok in my gui; I need the total of that query). However I noticed that u can also use fractionSorted to know how much items already have been sorted, and derived from that how much items there are in total.

For instance:

Last known size: 2249
Fraction Sorted:(2249/6065)

So I wrote code like this to already know and show the total numbers of the search, even if the search is still going on on the server, like this I can then already show the first page with the result, while the server is still creating further pages

totalNumberOfElements
^(magmaCollectionReader sortComplete)
ifTrue: [magmaCollectionReader lastKnownSize]
ifFalse: [|fractionSorted|
fractionSorted := magmaCollectionReader fractionSorted.
(fractionSorted = 0)
ifTrue: [self totalNumberOfElements].
(fractionSorted isFraction)
ifTrue: [fractionSorted denominator]
ifFalse: [magmaCollectionReader lastKnownSize]]].

This works mostly. If the fraction gets reduced however, the denominator returns a too low number off course. Is there any other way to know the total number of items in the search, even if it is still going on the server?

If I follow the code into
MaQueryExecutor>>fractionComplete
^ trunkPosition
ifNil: [ 0 ]
ifNotNil:
[ | trunkSize |
trunkSize _ self trunk trunkSize.
trunkSize = 0
ifTrue: [ 1 ]
ifFalse: [ trunkPosition / self trunk trunkSize ] ]

I understand where the 0 can come from & where the reduction comes from. Integer/anotherInteger automatically does a reduce.

If I on the server Image change
MaQueryExecutor>>fractionComplete
^ trunkPosition
ifNil: [ 0 ]
ifNotNil:
[ | trunkSize |
trunkSize _ self trunk trunkSize.
trunkSize = 0
ifTrue: [ 1 ]
ifFalse: [ Fraction numerator: trunkPosition denominator: self trunk trunkSize ] ]

It works because the reduce is then not done. This is a bit of hack off course.

Is there any other way of doing this?

Thanks for any help.