Reports - getting numeric value from commodity collector

Derek Atkins warlord at MIT.EDU
Fri Nov 25 23:20:28 EST 2005


Try:

(gnc:double-to-gnc-numeric tax-rate)

-derek

Quoting Darryl Cousins <darryl at darrylcousins.net.nz>:

> Hi Derek,
>
> That's very nice. Thank you for the advice. Now it works as I'd like:
>
> Problem though that I used options make-number-range which returns a
> figure like 33.0 which gnc:numeric-create doesn't like. After some
> struggle I gave up.
>
> <error>
> 306: 27*  [gnc:numeric-create 32.0 100]
> /usr/share/gnucash/guile-modules/gnucash/report/statement-performance.scm:306:31: In procedure gnc:numeric-create in expression (gnc:numeric-create tax-rate 
> 100):
> /usr/share/gnucash/guile-modules/gnucash/report/statement-performance.scm:306:31: Wrong type argument in position 1: 
> 32.0
> </error>
>
>    (if show-taxes?
>        (begin
>
>     ;; collect total profit - procedure taken from html-utilities.scm
>     (set! myprofit (gnc:accounts-get-comm-total-profit (filter 
> use-acct? accounts) my-get-balance))
>     (set! myprofit (gnc:sum-collector-commodity myprofit 
> report-currency exchange-fn))
>
>     ;; collect the numeric bit
>     (set! num (gnc:gnc-monetary-amount myprofit))
>
>     ;; check for zero or negative profit
>     (cond ((gnc:numeric-zero-p num)
>             (set! mytaxes (gnc:numeric-create 0 100)))
>           ((gnc:numeric-negative-p num)
>             (set! mytaxes (gnc:numeric-create 0 100)))
>           (else
>             ;; calculate taxes
>             (set! mytaxes (gnc:numeric-mul num
>                              ;(gnc:double-to-gnc-numeric tax-rate 100 
> GNC-DENOM-REDUCE)
>                              ;; always getting a figure 100 times the 
> actual. Tried different denom but to no avail
>                              (gnc:numeric-create 33 100)
>                              100 GNC-DENOM-REDUCE))
>             ))
>
>     ;; reconstruct monetary for printing
>     (set! mytaxes (gnc:make-gnc-monetary report-currency mytaxes))
>
>     ;; tab it to the table
>     (gnc:html-acct-table-row-helper!
>       table tree-depth
>       1 (_ "Taxes Payable")
>       mytaxes
>       #f "primary-subheading" #t #f)
>      ))
>
>          ;; add the table
>          (gnc:html-document-add-object! doc table)
>
>
> On Fri, 2005-11-25 at 09:24 -0500, Derek Atkins wrote:
>> Try using gnc-numeric math functions:
>>
>> (set! mytaxes (gnc:gnc-numeric-mul myprofit (gnc:gnc-numeric-create 
>> 33 100)))
>>
>> You need to use gnc-numeric mathematics -- you cannot convert from
>> a gnc-numeric to a scheme number and then back again like you're trying.
>>
>> -derek
>>
>> Quoting Darryl Cousins <darryl at darrylcousins.net.nz>:
>>
>> > Hi Everyone,
>> >
>> > I appear to have made some progress with my problem, I have been able to
>> > extract the number from the profit total (returned as a
>> > commodity-collector). Now I want to reconstruct that number for printing
>> > in the report as follows. Any suggestions? I'll back to it tomorrow.
>> >
>> >    (if show-taxes?
>> >        (begin
>> >
>> >     ;; collect total profit - procedure taken from html-utilities.scm
>> >     (set! myprofit (gnc:accounts-get-comm-total-profit (filter
>> > use-acct? accounts) my-get-balance))
>> >     (set! myprofit (gnc:sum-collector-commodity myprofit
>> > report-currency exchange-fn))
>> >
>> >     ;; collect the bits
>> >     (set! num (gnc:gnc-monetary-amount myprofit))
>> >     (set! denom (gnc:gnc-numeric-denom num))
>> >
>> >     ;; make a number I can compute with
>> >     (set! myprofit (gnc:gnc-numeric-num num))
>> >
>> >     ;; calculate taxes - TODO check for zero or negative profit
>> >     ;; TODO add tax percentage to options
>> >     ;; this will print no problem but lacks the currency prefix
>> >     ;; and hasn't been reconfigured with numeric-denom
>> >     (set! mytaxes (* myprofit 33 0.01))
>> >
>> >     ;; now try to reconstruct with denominator and currency
>> >
>> >     ;; reconstruct numeric
>> >     ;; this won't print (error #1 below)
>> >     ;(set! mytaxes (gnc:make-gnc-numeric mytaxes denom))
>> >
>> >     ;; reconstruct monetary for printing
>> >     ;; this won't print (error #2 below)
>> >     ;(set! mytaxes (gnc:make-gnc-monetary report-currency mytaxes))
>> >
>> >
>> >     (gnc:html-acct-table-row-helper!
>> >       table tree-depth
>> >       1 (_ "Taxes Payable")
>> >       mytaxes
>> >       #f "primary-subheading" #t #f)
>> >      ))
>> >
>> >          ;; add the table
>> >          (gnc:html-document-add-object! doc table)
>> >
>> >
>> > Error #1 tail
>> >
>> > In /usr/share/gnucash/scm/html-style-info.scm:
>> >      ...
>> > 284: 97    [gnc:amount->string # #]
>> > /usr/share/gnucash/scm/html-style-info.scm:284:3: In procedure
>> > gnc_scm_to_gint64 in expression (gnc:amount->string datum
>> > (gnc:default-print-info #f)):
>> > /usr/share/gnucash/scm/html-style-info.scm:284:3: Wrong type
>> > (inexact) argument in position 1: 107.72
>> >
>> > Error #2 tail
>> >
>> > In unknown file:
>> >      ...
>> >   ?: 97    [gnc:default-html-gnc-monetary-renderer # #f]
>> > In /usr/share/gnucash/scm/html-style-info.scm:
>> > 287: 98    (let* ((result #) (ind #)) (if ind (string-append #
>> > "&euro;" #) result))
>> > 287: 99*   [gnc:amount->string # #]
>> > /usr/share/gnucash/scm/html-style-info.scm:287:18: In procedure
>> > gnc_scm_to_gint64 in expression (gnc:amount->string
>> > (gnc:gnc-monetary-amount datum) (gnc:commodity-print-info # #t)):
>> > /usr/share/gnucash/scm/html-style-info.scm:287:18: Wrong type
>> > (inexact) argument in position 1: 107.72
>> >
>> > On Fri, 2005-11-25 at 15:53 +1300, Darryl Cousins wrote:
>> >> Hi Everyone,
>> >>
>> >> I'm rather new to GnuCash and guile/schema however I've made some
>> >> progress in creating my own 'Statement of Financial Performance using
>> >> reports/pnl.scm as a starting point. All well and good.
>> >>
>> >> My problem is in adding a final row to the report after Profit which
>> >> calculates the income tax owing on the profit (company tax at 33% here
>> >> in NZ).
>> >>
>> >> I've managed thus:
>> >>
>> >>     (if show-taxes?
>> >>         (begin
>> >>      (set! myprofit (gnc:accounts-get-comm-total-profit (filter
>> >> use-acct? accounts) my-get-balance))
>> >>      (set! myprofit (gnc:sum-collector-commodity myprofit
>> >> report-currency exchange-fn))
>> >>      (set! myprofit (gnc:gnc-monetary-amount myprofit))
>> >>      (gnc:html-acct-table-row-helper!
>> >>        table tree-depth
>> >>        1 (_ "Taxes Payable")
>> >>        myprofit
>> >>        #f "primary-subheading" #t #f)
>> >>       ))
>> >>
>> >> Which so far just gives the total profit figure. My dilemma is to
>> >> extract the number alone from the commodity collector (as returned from
>> >> gncsum-collector-commodity OR extract the number from the gnc-numeric
>> >> construct. Once I have the number itself then I can (* myprofit 0.33).
>> >> Probably then I'll be in trouble turning that back into a commodity
>> >> object.
>> >>
>> >> Any help would be appreciated.
>> >>
>> >> Best regards,
>> >> Darryl Cousins
>> >>
>> >> _______________________________________________
>> >> gnucash-user mailing list
>> >> gnucash-user at gnucash.org
>> >> https://lists.gnucash.org/mailman/listinfo/gnucash-user
>> > --
>> > Darryl Cousins
>> > Tree Fern Web Services (NZ) Ltd
>> > 106 Sandes St
>> > Thames 2801
>> > New Zealand
>> > +64 7 868 3139
>> > darryl.cousins at treefernwebservices.co.nz
>> > http://www.treefernwebservices.co.nz/
>> >
>> > _______________________________________________
>> > gnucash-user mailing list
>> > gnucash-user at gnucash.org
>> > https://lists.gnucash.org/mailman/listinfo/gnucash-user
>> >
>>
>>
>>
> --
> Darryl Cousins
> Tree Fern Web Services (NZ) Ltd
> 106 Sandes St
> Thames 2801
> New Zealand
> +64 7 868 3139
> darryl.cousins at treefernwebservices.co.nz
> http://www.treefernwebservices.co.nz/
>
>



-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
       warlord at MIT.EDU                        PGP key available



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