mirror of
https://github.com/simonmichael/hledger.git
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45401e538e
* Changed behavior of `readJournalFiles` to be identical to `readJournalFile` for singleton lists
* Balance Assertions have to be simple Amounts
* Add 'isAssignment' and 'assignmentPostings' to Hledger.Data.Posting and Transaction
* Implemented 'balanceTransactionUpdate', a more general version of 'balanceTransaction' that takes an update function
* Fixed test cases.
* Implemented balance assignment ("resetting a balance")
* Add assertions to show function
* updated the comments
* numbering is not needed in journalCheckBalanceAssertions
* remove prices before balance checks
* rename functions
641 lines
28 KiB
Haskell
641 lines
28 KiB
Haskell
{-# LANGUAGE FlexibleContexts #-}
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{-|
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A 'Transaction' represents a movement of some commodity(ies) between two
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or more accounts. It consists of multiple account 'Posting's which balance
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to zero, a date, and optional extras like description, cleared status, and
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tags.
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-}
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{-# LANGUAGE OverloadedStrings #-}
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module Hledger.Data.Transaction (
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-- * Transaction
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nullsourcepos,
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nulltransaction,
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txnTieKnot,
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txnUntieKnot,
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-- * operations
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showAccountName,
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hasRealPostings,
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realPostings,
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assignmentPostings,
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virtualPostings,
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balancedVirtualPostings,
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transactionsPostings,
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isTransactionBalanced,
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-- nonzerobalanceerror,
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-- * date operations
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transactionDate2,
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-- * arithmetic
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transactionPostingBalances,
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balanceTransaction,
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balanceTransactionUpdate,
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-- * rendering
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showTransaction,
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showTransactionUnelided,
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showTransactionUnelidedOneLineAmounts,
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showPostingLine,
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-- * misc.
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tests_Hledger_Data_Transaction
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)
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where
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import Data.List
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import Control.Monad.Except
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import Control.Monad.Identity
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import Data.Maybe
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import Data.Text (Text)
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import qualified Data.Text as T
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import Data.Time.Calendar
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import Test.HUnit
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import Text.Printf
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import qualified Data.Map as Map
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import Hledger.Utils
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import Hledger.Data.Types
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import Hledger.Data.Dates
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import Hledger.Data.Posting
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import Hledger.Data.Amount
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instance Show Transaction where show = showTransactionUnelided
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instance Show ModifierTransaction where
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show t = "= " ++ T.unpack (mtvalueexpr t) ++ "\n" ++ unlines (map show (mtpostings t))
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instance Show PeriodicTransaction where
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show t = "~ " ++ T.unpack (ptperiodicexpr t) ++ "\n" ++ unlines (map show (ptpostings t))
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nullsourcepos :: GenericSourcePos
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nullsourcepos = GenericSourcePos "" 1 1
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nulltransaction :: Transaction
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nulltransaction = Transaction {
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tindex=0,
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tsourcepos=nullsourcepos,
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tdate=nulldate,
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tdate2=Nothing,
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tstatus=Uncleared,
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tcode="",
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tdescription="",
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tcomment="",
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ttags=[],
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tpostings=[],
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tpreceding_comment_lines=""
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}
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{-|
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Show a journal transaction, formatted for the print command. ledger 2.x's
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standard format looks like this:
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@
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yyyy/mm/dd[ *][ CODE] description......... [ ; comment...............]
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account name 1..................... ...$amount1[ ; comment...............]
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account name 2..................... ..$-amount1[ ; comment...............]
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pcodewidth = no limit -- 10 -- mimicking ledger layout.
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pdescwidth = no limit -- 20 -- I don't remember what these mean,
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pacctwidth = 35 minimum, no maximum -- they were important at the time.
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pamtwidth = 11
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pcommentwidth = no limit -- 22
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@
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-}
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showTransaction :: Transaction -> String
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showTransaction = showTransactionHelper True False
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showTransactionUnelided :: Transaction -> String
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showTransactionUnelided = showTransactionHelper False False
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tests_showTransactionUnelided = [
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"showTransactionUnelided" ~: do
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let t `gives` s = assertEqual "" s (showTransactionUnelided t)
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nulltransaction `gives` "0000/01/01\n\n"
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nulltransaction{
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tdate=parsedate "2012/05/14",
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tdate2=Just $ parsedate "2012/05/15",
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tstatus=Uncleared,
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tcode="code",
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tdescription="desc",
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tcomment="tcomment1\ntcomment2\n",
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ttags=[("ttag1","val1")],
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tpostings=[
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nullposting{
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pstatus=Cleared,
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paccount="a",
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pamount=Mixed [usd 1, hrs 2],
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pcomment="\npcomment2\n",
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ptype=RegularPosting,
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ptags=[("ptag1","val1"),("ptag2","val2")]
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}
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]
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}
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`gives` unlines [
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"2012/05/14=2012/05/15 (code) desc ; tcomment1",
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" ; tcomment2",
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" $1.00",
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" * a 2.00h",
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" ; pcomment2",
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""
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]
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]
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showTransactionUnelidedOneLineAmounts :: Transaction -> String
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showTransactionUnelidedOneLineAmounts = showTransactionHelper False True
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-- cf showPosting
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showTransactionHelper :: Bool -> Bool -> Transaction -> String
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showTransactionHelper elide onelineamounts t =
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unlines $ [descriptionline]
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++ newlinecomments
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++ (postingsAsLines elide onelineamounts t (tpostings t))
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++ [""]
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where
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descriptionline = rstrip $ concat [date, status, code, desc, samelinecomment]
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date = showDate (tdate t) ++ maybe "" (("="++) . showDate) (tdate2 t)
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status | tstatus t == Cleared = " *"
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| tstatus t == Pending = " !"
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| otherwise = ""
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code = if T.length (tcode t) > 0 then printf " (%s)" $ T.unpack $ tcode t else ""
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desc = if null d then "" else " " ++ d where d = T.unpack $ tdescription t
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(samelinecomment, newlinecomments) =
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case renderCommentLines (tcomment t) of [] -> ("",[])
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c:cs -> (c,cs)
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-- Render a transaction or posting's comment as indented, semicolon-prefixed comment lines.
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renderCommentLines :: Text -> [String]
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renderCommentLines t = case lines $ T.unpack t of ("":ls) -> "":map commentprefix ls
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ls -> map commentprefix ls
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where
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commentprefix = indent . ("; "++)
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-- -- Render a transaction or posting's comment as semicolon-prefixed comment lines -
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-- -- an inline (same-line) comment if it's a single line, otherwise multiple indented lines.
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-- commentLines' :: String -> (String, [String])
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-- commentLines' s
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-- | null s = ("", [])
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-- | length ls == 1 = (prefix $ head ls, [])
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-- | otherwise = ("", (prefix $ head ls):(map prefix $ tail ls))
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-- where
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-- ls = lines s
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-- prefix = indent . (";"++)
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postingsAsLines :: Bool -> Bool -> Transaction -> [Posting] -> [String]
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postingsAsLines elide onelineamounts t ps
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| elide && length ps > 1 && isTransactionBalanced Nothing t -- imprecise balanced check
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= (concatMap (postingAsLines False onelineamounts ps) $ init ps) ++ postingAsLines True onelineamounts ps (last ps)
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| otherwise = concatMap (postingAsLines False onelineamounts ps) ps
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postingAsLines :: Bool -> Bool -> [Posting] -> Posting -> [String]
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postingAsLines elideamount onelineamounts ps p =
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postinglines
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++ newlinecomments
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where
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postinglines = map rstrip $ lines $ concatTopPadded [account, " ", amount, assertion, samelinecomment]
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assertion = maybe "" ((" = " ++) . showAmount) $ pbalanceassertion p
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account =
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indent $
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showstatus p ++ fitString (Just acctwidth) Nothing False True (showAccountName Nothing (ptype p) (paccount p))
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where
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showstatus p = if pstatus p == Cleared then "* " else ""
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acctwidth = maximum $ map (textWidth . paccount) ps
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-- currently prices are considered part of the amount string when right-aligning amounts
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amount
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| elideamount = ""
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| onelineamounts = fitString (Just amtwidth) Nothing False False $ showMixedAmountOneLine $ pamount p
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| otherwise = fitStringMulti (Just amtwidth) Nothing False False $ showMixedAmount $ pamount p
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where
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amtwidth = maximum $ 12 : map (strWidth . showMixedAmount . pamount) ps -- min. 12 for backwards compatibility
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(samelinecomment, newlinecomments) =
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case renderCommentLines (pcomment p) of [] -> ("",[])
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c:cs -> (c,cs)
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-- used in balance assertion error
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showPostingLine p =
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indent $
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if pstatus p == Cleared then "* " else "" ++
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showAccountName Nothing (ptype p) (paccount p) ++
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" " ++
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showMixedAmountOneLine (pamount p)
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tests_postingAsLines = [
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"postingAsLines" ~: do
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let p `gives` ls = assertEqual "" ls (postingAsLines False False [p] p)
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posting `gives` [" 0"]
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posting{
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pstatus=Cleared,
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paccount="a",
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pamount=Mixed [usd 1, hrs 2],
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pcomment="pcomment1\npcomment2\n tag3: val3 \n",
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ptype=RegularPosting,
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ptags=[("ptag1","val1"),("ptag2","val2")]
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}
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`gives` [
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" $1.00",
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" * a 2.00h ; pcomment1",
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" ; pcomment2",
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" ; tag3: val3 "
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]
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]
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indent :: String -> String
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indent = (" "++)
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-- | Show an account name, clipped to the given width if any, and
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-- appropriately bracketed/parenthesised for the given posting type.
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showAccountName :: Maybe Int -> PostingType -> AccountName -> String
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showAccountName w = fmt
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where
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fmt RegularPosting = take w' . T.unpack
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fmt VirtualPosting = parenthesise . reverse . take (w'-2) . reverse . T.unpack
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fmt BalancedVirtualPosting = bracket . reverse . take (w'-2) . reverse . T.unpack
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w' = fromMaybe 999999 w
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parenthesise :: String -> String
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parenthesise s = "("++s++")"
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bracket :: String -> String
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bracket s = "["++s++"]"
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hasRealPostings :: Transaction -> Bool
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hasRealPostings = not . null . realPostings
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realPostings :: Transaction -> [Posting]
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realPostings = filter isReal . tpostings
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assignmentPostings :: Transaction -> [Posting]
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assignmentPostings = filter isAssignment . tpostings
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virtualPostings :: Transaction -> [Posting]
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virtualPostings = filter isVirtual . tpostings
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balancedVirtualPostings :: Transaction -> [Posting]
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balancedVirtualPostings = filter isBalancedVirtual . tpostings
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transactionsPostings :: [Transaction] -> [Posting]
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transactionsPostings = concat . map tpostings
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-- | Get the sums of a transaction's real, virtual, and balanced virtual postings.
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transactionPostingBalances :: Transaction -> (MixedAmount,MixedAmount,MixedAmount)
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transactionPostingBalances t = (sumPostings $ realPostings t
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,sumPostings $ virtualPostings t
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,sumPostings $ balancedVirtualPostings t)
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-- | Is this transaction balanced ? A balanced transaction's real
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-- (non-virtual) postings sum to 0, and any balanced virtual postings
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-- also sum to 0.
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isTransactionBalanced :: Maybe (Map.Map CommoditySymbol AmountStyle) -> Transaction -> Bool
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isTransactionBalanced styles t =
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-- isReallyZeroMixedAmountCost rsum && isReallyZeroMixedAmountCost bvsum
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isZeroMixedAmount rsum' && isZeroMixedAmount bvsum'
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where
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(rsum, _, bvsum) = transactionPostingBalances t
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rsum' = canonicalise $ costOfMixedAmount rsum
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bvsum' = canonicalise $ costOfMixedAmount bvsum
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canonicalise = maybe id canonicaliseMixedAmount styles
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-- | Ensure this transaction is balanced, possibly inferring a missing
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-- amount or conversion price(s), or return an error message.
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-- Balancing is affected by commodity display precisions, so those can
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-- (optionally) be provided.
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--
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-- this fails for example, if there are several missing amounts
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-- (possibly with balance assignments)
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balanceTransaction :: Maybe (Map.Map CommoditySymbol AmountStyle)
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-> Transaction -> Either String Transaction
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balanceTransaction stylemap = runIdentity . runExceptT
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. balanceTransactionUpdate (\_ _ -> return ()) stylemap
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-- | More general version of 'balanceTransaction' that takes an update
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-- function
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balanceTransactionUpdate :: MonadError String m
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=> (AccountName -> MixedAmount -> m ())
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-- ^ update function
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-> Maybe (Map.Map CommoditySymbol AmountStyle)
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-> Transaction -> m Transaction
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balanceTransactionUpdate update styles t =
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finalize =<< inferBalancingAmount update t
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where
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finalize t' = let t'' = inferBalancingPrices t'
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in if isTransactionBalanced styles t''
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then return $ txnTieKnot t''
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else throwError $ printerr $ nonzerobalanceerror t''
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printerr s = intercalate "\n" [s, showTransactionUnelided t]
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nonzerobalanceerror :: Transaction -> String
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nonzerobalanceerror t = printf "could not balance this transaction (%s%s%s)" rmsg sep bvmsg
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where
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(rsum, _, bvsum) = transactionPostingBalances t
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rmsg | isReallyZeroMixedAmountCost rsum = ""
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| otherwise = "real postings are off by "
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++ showMixedAmount (costOfMixedAmount rsum)
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bvmsg | isReallyZeroMixedAmountCost bvsum = ""
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| otherwise = "balanced virtual postings are off by "
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++ showMixedAmount (costOfMixedAmount bvsum)
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sep = if not (null rmsg) && not (null bvmsg) then "; " else "" :: String
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-- | Infer up to one missing amount for this transactions's real postings, and
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-- likewise for its balanced virtual postings, if needed; or return an error
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-- message if we can't.
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--
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-- We can infer a missing amount when there are multiple postings and exactly
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-- one of them is amountless. If the amounts had price(s) the inferred amount
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-- have the same price(s), and will be converted to the price commodity.
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inferBalancingAmount :: MonadError String m
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=> (AccountName -> MixedAmount -> m ())
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-- ^ update function
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-> Transaction -> m Transaction
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inferBalancingAmount update t@Transaction{tpostings=ps}
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| length amountlessrealps > 1
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= throwError $ printerr "could not balance this transaction - can't have more than one real posting with no amount (remember to put 2 or more spaces before amounts)"
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| length amountlessbvps > 1
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= throwError $ printerr "could not balance this transaction - can't have more than one balanced virtual posting with no amount (remember to put 2 or more spaces before amounts)"
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| otherwise
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= do postings <- mapM inferamount ps
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return t{tpostings=postings}
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where
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printerr s = intercalate "\n" [s, showTransactionUnelided t]
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((amountfulrealps, amountlessrealps), realsum) =
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(partition hasAmount (realPostings t), sum $ map pamount amountfulrealps)
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((amountfulbvps, amountlessbvps), bvsum) =
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(partition hasAmount (balancedVirtualPostings t), sum $ map pamount amountfulbvps)
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inferamount p@Posting{ptype=RegularPosting}
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| not (hasAmount p) = updateAmount p realsum
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inferamount p@Posting{ptype=BalancedVirtualPosting}
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| not (hasAmount p) = updateAmount p bvsum
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inferamount p = return p
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updateAmount p amt = update (paccount p) amt' >> return p { pamount=amt' }
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where amt' = costOfMixedAmount (-amt)
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-- | Infer prices for this transaction's posting amounts, if needed to make
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-- the postings balance, and if possible. This is done once for the real
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-- postings and again (separately) for the balanced virtual postings. When
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-- it's not possible, the transaction is left unchanged.
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--
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-- The simplest example is a transaction with two postings, each in a
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-- different commodity, with no prices specified. In this case we'll add a
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-- price to the first posting such that it can be converted to the commodity
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-- of the second posting (with -B), and such that the postings balance.
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--
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-- In general, we can infer a conversion price when the sum of posting amounts
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-- contains exactly two different commodities and no explicit prices. Also
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-- all postings are expected to contain an explicit amount (no missing
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-- amounts) in a single commodity. Otherwise no price inferring is attempted.
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--
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-- The transaction itself could contain more than two commodities, and/or
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-- prices, if they cancel out; what matters is that the sum of posting amounts
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-- contains exactly two commodities and zero prices.
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--
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-- There can also be more than two postings in either of the commodities.
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--
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-- We want to avoid excessive display of digits when the calculated price is
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-- an irrational number, while hopefully also ensuring the displayed numbers
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-- make sense if the user does a manual calculation. This is (mostly) achieved
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-- in two ways:
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--
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-- - when there is only one posting in the "from" commodity, a total price
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-- (@@) is used, and all available decimal digits are shown
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--
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-- - otherwise, a suitable averaged unit price (@) is applied to the relevant
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-- postings, with display precision equal to the summed display precisions
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-- of the two commodities being converted between, or 2, whichever is larger.
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--
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-- (We don't always calculate a good-looking display precision for unit prices
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-- when the commodity display precisions are low, eg when a journal doesn't
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-- use any decimal places. The minimum of 2 helps make the prices shown by the
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-- print command a bit less surprising in this case. Could do better.)
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--
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inferBalancingPrices :: Transaction -> Transaction
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inferBalancingPrices t@Transaction{tpostings=ps} = t{tpostings=ps'}
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where
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ps' = map (priceInferrerFor t BalancedVirtualPosting) $
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map (priceInferrerFor t RegularPosting) $
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ps
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-- | Generate a posting update function which assigns a suitable balancing
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-- price to the posting, if and as appropriate for the given transaction and
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-- posting type (real or balanced virtual).
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priceInferrerFor :: Transaction -> PostingType -> (Posting -> Posting)
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priceInferrerFor t pt = inferprice
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where
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postings = filter ((==pt).ptype) $ tpostings t
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pmixedamounts = map pamount postings
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pamounts = concatMap amounts pmixedamounts
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pcommodities = map acommodity pamounts
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sumamounts = amounts $ sum pmixedamounts -- sum normalises to one amount per commodity & price
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sumcommodities = map acommodity sumamounts
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sumprices = filter (/=NoPrice) $ map aprice sumamounts
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caninferprices = length sumcommodities == 2 && null sumprices
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inferprice p@Posting{pamount=Mixed [a]}
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| caninferprices && ptype p == pt && acommodity a == fromcommodity
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= p{pamount=Mixed [a{aprice=conversionprice}]}
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where
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fromcommodity = head $ filter (`elem` sumcommodities) pcommodities -- these heads are ugly but should be safe
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conversionprice
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| fromcount==1 = TotalPrice $ abs toamount `withPrecision` maxprecision
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| otherwise = UnitPrice $ abs unitprice `withPrecision` unitprecision
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where
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fromcount = length $ filter ((==fromcommodity).acommodity) pamounts
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fromamount = head $ filter ((==fromcommodity).acommodity) sumamounts
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tocommodity = head $ filter (/=fromcommodity) sumcommodities
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toamount = head $ filter ((==tocommodity).acommodity) sumamounts
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unitprice = toamount `divideAmount` (aquantity fromamount)
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unitprecision = max 2 ((asprecision $ astyle $ toamount) + (asprecision $ astyle $ fromamount))
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inferprice p = p
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-- Get a transaction's secondary date, defaulting to the primary date.
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transactionDate2 :: Transaction -> Day
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transactionDate2 t = fromMaybe (tdate t) $ tdate2 t
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-- | Ensure a transaction's postings refer back to it, so that eg
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-- relatedPostings works right.
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txnTieKnot :: Transaction -> Transaction
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txnTieKnot t@Transaction{tpostings=ps} = t{tpostings=map (postingSetTransaction t) ps}
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-- | Ensure a transaction's postings do not refer back to it, so that eg
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-- recursiveSize and GHCI's :sprint work right.
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txnUntieKnot :: Transaction -> Transaction
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txnUntieKnot t@Transaction{tpostings=ps} = t{tpostings=map (\p -> p{ptransaction=Nothing}) ps}
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-- | Set a posting's parent transaction.
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postingSetTransaction :: Transaction -> Posting -> Posting
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postingSetTransaction t p = p{ptransaction=Just t}
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tests_Hledger_Data_Transaction = TestList $ concat [
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tests_postingAsLines,
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tests_showTransactionUnelided,
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[
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"showTransaction" ~: do
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assertEqual "show a balanced transaction, eliding last amount"
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(unlines
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["2007/01/28 coopportunity"
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," expenses:food:groceries $47.18"
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," assets:checking"
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,""
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])
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(let t = Transaction 0 nullsourcepos (parsedate "2007/01/28") Nothing Uncleared "" "coopportunity" "" []
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[posting{paccount="expenses:food:groceries", pamount=Mixed [usd 47.18], ptransaction=Just t}
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,posting{paccount="assets:checking", pamount=Mixed [usd (-47.18)], ptransaction=Just t}
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] ""
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in showTransaction t)
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|
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,"showTransaction" ~: do
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assertEqual "show a balanced transaction, no eliding"
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(unlines
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["2007/01/28 coopportunity"
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," expenses:food:groceries $47.18"
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," assets:checking $-47.18"
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,""
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])
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(let t = Transaction 0 nullsourcepos (parsedate "2007/01/28") Nothing Uncleared "" "coopportunity" "" []
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[posting{paccount="expenses:food:groceries", pamount=Mixed [usd 47.18], ptransaction=Just t}
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,posting{paccount="assets:checking", pamount=Mixed [usd (-47.18)], ptransaction=Just t}
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] ""
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in showTransactionUnelided t)
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|
|
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-- document some cases that arise in debug/testing:
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,"showTransaction" ~: do
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assertEqual "show an unbalanced transaction, should not elide"
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|
(unlines
|
|
["2007/01/28 coopportunity"
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|
," expenses:food:groceries $47.18"
|
|
," assets:checking $-47.19"
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|
,""
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|
])
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(showTransaction
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(txnTieKnot $ Transaction 0 nullsourcepos (parsedate "2007/01/28") Nothing Uncleared "" "coopportunity" "" []
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[posting{paccount="expenses:food:groceries", pamount=Mixed [usd 47.18]}
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,posting{paccount="assets:checking", pamount=Mixed [usd (-47.19)]}
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] ""))
|
|
|
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,"showTransaction" ~: do
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|
assertEqual "show an unbalanced transaction with one posting, should not elide"
|
|
(unlines
|
|
["2007/01/28 coopportunity"
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|
," expenses:food:groceries $47.18"
|
|
,""
|
|
])
|
|
(showTransaction
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|
(txnTieKnot $ Transaction 0 nullsourcepos (parsedate "2007/01/28") Nothing Uncleared "" "coopportunity" "" []
|
|
[posting{paccount="expenses:food:groceries", pamount=Mixed [usd 47.18]}
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] ""))
|
|
|
|
,"showTransaction" ~: do
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|
assertEqual "show a transaction with one posting and a missing amount"
|
|
(unlines
|
|
["2007/01/28 coopportunity"
|
|
," expenses:food:groceries"
|
|
,""
|
|
])
|
|
(showTransaction
|
|
(txnTieKnot $ Transaction 0 nullsourcepos (parsedate "2007/01/28") Nothing Uncleared "" "coopportunity" "" []
|
|
[posting{paccount="expenses:food:groceries", pamount=missingmixedamt}
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|
] ""))
|
|
|
|
,"showTransaction" ~: do
|
|
assertEqual "show a transaction with a priced commodityless amount"
|
|
(unlines
|
|
["2010/01/01 x"
|
|
," a 1 @ $2"
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|
," b"
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|
,""
|
|
])
|
|
(showTransaction
|
|
(txnTieKnot $ Transaction 0 nullsourcepos (parsedate "2010/01/01") Nothing Uncleared "" "x" "" []
|
|
[posting{paccount="a", pamount=Mixed [num 1 `at` (usd 2 `withPrecision` 0)]}
|
|
,posting{paccount="b", pamount= missingmixedamt}
|
|
] ""))
|
|
|
|
,"balanceTransaction" ~: do
|
|
assertBool "detect unbalanced entry, sign error"
|
|
(isLeft $ balanceTransaction Nothing
|
|
(Transaction 0 nullsourcepos (parsedate "2007/01/28") Nothing Uncleared "" "test" "" []
|
|
[posting{paccount="a", pamount=Mixed [usd 1]}
|
|
,posting{paccount="b", pamount=Mixed [usd 1]}
|
|
] ""))
|
|
|
|
assertBool "detect unbalanced entry, multiple missing amounts"
|
|
(isLeft $ balanceTransaction Nothing
|
|
(Transaction 0 nullsourcepos (parsedate "2007/01/28") Nothing Uncleared "" "test" "" []
|
|
[posting{paccount="a", pamount=missingmixedamt}
|
|
,posting{paccount="b", pamount=missingmixedamt}
|
|
] ""))
|
|
|
|
let e = balanceTransaction Nothing (Transaction 0 nullsourcepos (parsedate "2007/01/28") Nothing Uncleared "" "" "" []
|
|
[posting{paccount="a", pamount=Mixed [usd 1]}
|
|
,posting{paccount="b", pamount=missingmixedamt}
|
|
] "")
|
|
assertBool "balanceTransaction allows one missing amount" (isRight e)
|
|
assertEqual "balancing amount is inferred"
|
|
(Mixed [usd (-1)])
|
|
(case e of
|
|
Right e' -> (pamount $ last $ tpostings e')
|
|
Left _ -> error' "should not happen")
|
|
|
|
let e = balanceTransaction Nothing (Transaction 0 nullsourcepos (parsedate "2011/01/01") Nothing Uncleared "" "" "" []
|
|
[posting{paccount="a", pamount=Mixed [usd 1.35]}
|
|
,posting{paccount="b", pamount=Mixed [eur (-1)]}
|
|
] "")
|
|
assertBool "balanceTransaction can infer conversion price" (isRight e)
|
|
assertEqual "balancing conversion price is inferred"
|
|
(Mixed [usd 1.35 @@ (eur 1 `withPrecision` maxprecision)])
|
|
(case e of
|
|
Right e' -> (pamount $ head $ tpostings e')
|
|
Left _ -> error' "should not happen")
|
|
|
|
assertBool "balanceTransaction balances based on cost if there are unit prices" (isRight $
|
|
balanceTransaction Nothing (Transaction 0 nullsourcepos (parsedate "2011/01/01") Nothing Uncleared "" "" "" []
|
|
[posting{paccount="a", pamount=Mixed [usd 1 `at` eur 2]}
|
|
,posting{paccount="a", pamount=Mixed [usd (-2) `at` eur 1]}
|
|
] ""))
|
|
|
|
assertBool "balanceTransaction balances based on cost if there are total prices" (isRight $
|
|
balanceTransaction Nothing (Transaction 0 nullsourcepos (parsedate "2011/01/01") Nothing Uncleared "" "" "" []
|
|
[posting{paccount="a", pamount=Mixed [usd 1 @@ eur 1]}
|
|
,posting{paccount="a", pamount=Mixed [usd (-2) @@ eur 1]}
|
|
] ""))
|
|
|
|
,"isTransactionBalanced" ~: do
|
|
let t = Transaction 0 nullsourcepos (parsedate "2009/01/01") Nothing Uncleared "" "a" "" []
|
|
[posting{paccount="b", pamount=Mixed [usd 1.00], ptransaction=Just t}
|
|
,posting{paccount="c", pamount=Mixed [usd (-1.00)], ptransaction=Just t}
|
|
] ""
|
|
assertBool "detect balanced" (isTransactionBalanced Nothing t)
|
|
let t = Transaction 0 nullsourcepos (parsedate "2009/01/01") Nothing Uncleared "" "a" "" []
|
|
[posting{paccount="b", pamount=Mixed [usd 1.00], ptransaction=Just t}
|
|
,posting{paccount="c", pamount=Mixed [usd (-1.01)], ptransaction=Just t}
|
|
] ""
|
|
assertBool "detect unbalanced" (not $ isTransactionBalanced Nothing t)
|
|
let t = Transaction 0 nullsourcepos (parsedate "2009/01/01") Nothing Uncleared "" "a" "" []
|
|
[posting{paccount="b", pamount=Mixed [usd 1.00], ptransaction=Just t}
|
|
] ""
|
|
assertBool "detect unbalanced, one posting" (not $ isTransactionBalanced Nothing t)
|
|
let t = Transaction 0 nullsourcepos (parsedate "2009/01/01") Nothing Uncleared "" "a" "" []
|
|
[posting{paccount="b", pamount=Mixed [usd 0], ptransaction=Just t}
|
|
] ""
|
|
assertBool "one zero posting is considered balanced for now" (isTransactionBalanced Nothing t)
|
|
let t = Transaction 0 nullsourcepos (parsedate "2009/01/01") Nothing Uncleared "" "a" "" []
|
|
[posting{paccount="b", pamount=Mixed [usd 1.00], ptransaction=Just t}
|
|
,posting{paccount="c", pamount=Mixed [usd (-1.00)], ptransaction=Just t}
|
|
,posting{paccount="d", pamount=Mixed [usd 100], ptype=VirtualPosting, ptransaction=Just t}
|
|
] ""
|
|
assertBool "virtual postings don't need to balance" (isTransactionBalanced Nothing t)
|
|
let t = Transaction 0 nullsourcepos (parsedate "2009/01/01") Nothing Uncleared "" "a" "" []
|
|
[posting{paccount="b", pamount=Mixed [usd 1.00], ptransaction=Just t}
|
|
,posting{paccount="c", pamount=Mixed [usd (-1.00)], ptransaction=Just t}
|
|
,posting{paccount="d", pamount=Mixed [usd 100], ptype=BalancedVirtualPosting, ptransaction=Just t}
|
|
] ""
|
|
assertBool "balanced virtual postings need to balance among themselves" (not $ isTransactionBalanced Nothing t)
|
|
let t = Transaction 0 nullsourcepos (parsedate "2009/01/01") Nothing Uncleared "" "a" "" []
|
|
[posting{paccount="b", pamount=Mixed [usd 1.00], ptransaction=Just t}
|
|
,posting{paccount="c", pamount=Mixed [usd (-1.00)], ptransaction=Just t}
|
|
,posting{paccount="d", pamount=Mixed [usd 100], ptype=BalancedVirtualPosting, ptransaction=Just t}
|
|
,posting{paccount="3", pamount=Mixed [usd (-100)], ptype=BalancedVirtualPosting, ptransaction=Just t}
|
|
] ""
|
|
assertBool "balanced virtual postings need to balance among themselves (2)" (isTransactionBalanced Nothing t)
|
|
|
|
]]
|