Hello all,
I have data stored in a collection. There is no field within the
collection that is suitable for use as a sorting parameter. Externally,
I can generate this sorting index, but I need a means for adding this
index into my collection.
I know how to scan through records, obtain the correct ones, and insert
them into a new collection. I also know how I can generate the value of
the required index. However, I don't know how to associate the index
with the appropriate record in the new collection.
Below is my current code for scanning, choosing the valid records and
including them into the new collection. Any help on how to include the
index value would be appreciated
#set ($newcollection = [])
#foreach ($rec in $data.collection)
#if($rec.name == "valid") ## choose on valid
records
#set ($index = ???) ## calculate index
value
#set ($n = $newcollection.add($rec)) ## add record and
index to new collection
#end
#end
Then, I would like to be able to retrieve the records as follows:
#foreach ($newrec in $SortTool.sort($newcollection, "index") ## choose
records from new collection, sorted by "index"
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