refactor amount filtering helpers

hledger-lib/Hledger/Data/Journal.hs

@@ -22,7 +22,8 @@ module Hledger.Data.Journal (
   -- * Filtering
   filterJournalTransactions,
   filterJournalPostings,
-  filterJournalPostingAmounts,
+  filterJournalAmounts,
+  filterTransactionAmounts,
   filterPostingAmount,
   -- * Querying
   journalAccountNames,
@@ -231,6 +232,10 @@ journalCashAccountQuery j = And [journalAssetAccountQuery j, Not $ Acct "(receiv
 -------------------------------------------------------------------------------
 -- filtering V2
 
+-- | Keep only transactions matching the query expression.
+filterJournalTransactions :: Query -> Journal -> Journal
+filterJournalTransactions q j@Journal{jtxns=ts} = j{jtxns=filter (q `matchesTransaction`) ts}
+
 -- | Keep only postings matching the query expression.
 -- This can leave unbalanced transactions.
 filterJournalPostings :: Query -> Journal -> Journal
@@ -238,21 +243,20 @@ filterJournalPostings q j@Journal{jtxns=ts} = j{jtxns=map filtertransactionposti
     where
       filtertransactionpostings t@Transaction{tpostings=ps} = t{tpostings=filter (q `matchesPosting`) ps}
 
--- Within each posting's amount, keep only the parts matching the query.
+-- | Within each posting's amount, keep only the parts matching the query.
 -- This can leave unbalanced transactions.
-filterJournalPostingAmounts :: Query -> Journal -> Journal
-filterJournalPostingAmounts q j@Journal{jtxns=ts} = j{jtxns=map filtertransactionpostings ts}
-    where
-      filtertransactionpostings t@Transaction{tpostings=ps} = t{tpostings=map (filterPostingAmount q) ps}
+filterJournalAmounts :: Query -> Journal -> Journal
+filterJournalAmounts q j@Journal{jtxns=ts} = j{jtxns=map (filterTransactionAmounts q) ts}
+
+-- | Filter out all parts of this transaction's amounts which do not match the query.
+-- This can leave the transaction unbalanced.
+filterTransactionAmounts :: Query -> Transaction -> Transaction
+filterTransactionAmounts q t@Transaction{tpostings=ps} = t{tpostings=map (filterPostingAmount q) ps}
 
 -- | Filter out all parts of this posting's amount which do not match the query.
 filterPostingAmount :: Query -> Posting -> Posting
 filterPostingAmount q p@Posting{pamount=Mixed as} = p{pamount=Mixed $ filter (q `matchesAmount`) as}
 
--- | Keep only transactions matching the query expression.
-filterJournalTransactions :: Query -> Journal -> Journal
-filterJournalTransactions q j@Journal{jtxns=ts} = j{jtxns=filter (q `matchesTransaction`) ts}
-
 {-
 -------------------------------------------------------------------------------
 -- filtering V1

hledger-lib/Hledger/Data/Ledger.hs

@@ -43,7 +43,7 @@ ledgerFromJournal :: Query -> Journal -> Ledger
 ledgerFromJournal q j = nullledger{ljournal=j'', laccounts=as}
   where
     (q',depthq)  = (filterQuery (not . queryIsDepth) q, filterQuery queryIsDepth q)
-    j'  = filterJournalPostingAmounts (filterQuery queryIsSym q) $ -- remove amount parts which the query's sym: terms would exclude
+    j'  = filterJournalAmounts (filterQuery queryIsSym q) $ -- remove amount parts which the query's sym: terms would exclude
           filterJournalPostings q' j
     as  = accountsFromPostings $ journalPostings j'
     j'' = filterJournalPostings depthq j'

hledger-lib/Hledger/Reports/MultiBalanceReports.hs

@@ -85,7 +85,7 @@ multiBalanceReport opts q j = MultiBalanceReport (displayspans, items, totals)
       ps :: [Posting] =
           dbg "ps" $
           journalPostings $
-          filterJournalPostingAmounts symq $     -- remove amount parts excluded by cur:
+          filterJournalAmounts symq $     -- remove amount parts excluded by cur:
           filterJournalPostings reportq $        -- remove postings not matched by (adjusted) query
           journalSelectingAmountFromOpts opts j