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CX_TRANSACTION::LogicalOrToTop

CX_TRANSACTION::LogicalOrToTop

Description:

This function examines the contents of the transaction slot and all parent transactions.

"Slot = 2" txn Call(LogicalOrToTop) - returns TRUE.
"Slot = 0" txn Call(LogicalOrToTop) - returns FALSE

Code example: 
Define(AddVatSum)
    tmpItem Copy(transaction.LogicalOrToTop("subTransactions[0]!=0 & has(orderItemTypeEnum) & orderItemTypeEnum=0")) ifnot
    {
        tmpItem Get(salesItem.tax) Dup if
        {
        // Find present VAT
            0 -> sum
            vatVector iterate
        {
        -> tmp
        0 tmp GetElement Over @ if { 1 tmp GetElement -> sum }
    }
;
Stack
Stack Position Object type Brief description
Stack(In) Top CX_TRANSACTION One transaction
Top 1 STRING Condition
Stack(Out) Top CX_BOOLEAN Truth value
Function call: Call(LogicalOrToTop)