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36 lines
1.1 KiB
Haskell
36 lines
1.1 KiB
Haskell
{-|
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A 'Transaction' is a 'RawTransaction' with its parent 'Entry' \'s date and
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description attached. These are what we actually query when doing reports.
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-}
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module Ledger.Transaction
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where
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import Ledger.Utils
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import Ledger.Types
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import Ledger.Entry
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import Ledger.RawTransaction
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import Ledger.Amount
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instance Show Transaction where show=showTransaction
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showTransaction :: Transaction -> String
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showTransaction (Transaction eno d desc a amt ttype) = unwords [d,desc,a,show amt,show ttype]
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-- | Convert a 'Entry' to two or more 'Transaction's. An id number
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-- is attached to the transactions to preserve their grouping - it should
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-- be unique per entry.
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flattenEntry :: (Entry, Int) -> [Transaction]
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flattenEntry (Entry d _ _ desc _ ts _, e) =
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[Transaction e d desc (taccount t) (tamount t) (rttype t) | t <- ts]
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accountNamesFromTransactions :: [Transaction] -> [AccountName]
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accountNamesFromTransactions ts = nub $ map account ts
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sumTransactions :: [Transaction] -> MixedAmount
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sumTransactions = sum . map amount
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nulltxn = Transaction 0 "" "" "" nullamt RegularTransaction
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