gnucash/libgnucash/app-utils/business-options.scm
2019-07-12 21:08:15 +08:00

514 lines
16 KiB
Scheme

;; Scheme code for supporting options for the business modules
;;
;; Created by: Derek Atkins <derek@ihtfp.com>
;;
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 2 of
;; the License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, contact:
;;
;; Free Software Foundation Voice: +1-617-542-5942
;; 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652
;; Boston, MA 02110-1301, USA gnu@gnu.org
;; Internally, values are always a guid. Externally, both guids and
;; invoice pointers may be used to set the value of the option. The
;; option always returns a single invoice pointer.
(use-modules (gnucash utilities))
(define (gnc:make-invoice-option
section
name
sort-tag
documentation-string
default-getter
value-validator)
(define (convert-to-guid item)
(if (string? item)
item
(gncInvoiceReturnGUID item)))
(define (convert-to-invoice item)
(if (string? item)
(gncInvoiceLookupFlip item (gnc-get-current-book))
item))
(let* ((option (convert-to-guid (default-getter)))
(option-set #f)
(getter (lambda () (convert-to-invoice
(if option-set
option
(default-getter)))))
(value->string (lambda ()
(string-append
"'" (gnc:value->string (if option-set option #f)))))
(validator
(if (not value-validator)
(lambda (invoice) (list #t invoice))
(lambda (invoice)
(value-validator (convert-to-invoice invoice))))))
(gnc:make-option
section name sort-tag 'invoice documentation-string getter
(lambda (invoice) ;; setter
(if (null? invoice) (set! invoice (default-getter)))
(set! invoice (convert-to-invoice invoice))
(let* ((result (validator invoice))
(valid (car result))
(value (cadr result)))
(if valid
(begin
(set! option (convert-to-guid value))
(set! option-set #t))
(gnc:error "Illegal invoice value set"))))
(lambda () (convert-to-invoice (default-getter)))
(gnc:restore-form-generator value->string)
(lambda (b p) (qof-book-set-option b option p))
(lambda (b p)
(let ((v (qof-book-get-option b p)))
(if (and v (string? v))
(begin
(set! option v)
(set! option-set #t)))))
validator
#f #f #f #f)))
;; Internally, values are always a guid. Externally, both guids and
;; customer pointers may be used to set the value of the option. The
;; option always returns a single customer pointer.
(define (gnc:make-customer-option
section
name
sort-tag
documentation-string
default-getter
value-validator)
(define (convert-to-guid item)
(if (string? item)
item
(gncCustomerReturnGUID item)))
(define (convert-to-customer item)
(if (string? item)
(gncCustomerLookupFlip item (gnc-get-current-book))
item))
(issue-deprecation-warning
"gnc:make-customer-option is unused.")
(let* ((option (convert-to-guid (default-getter)))
(option-set #f)
(getter (lambda () (convert-to-customer
(if option-set
option
(default-getter)))))
(value->string (lambda ()
(string-append
"'" (gnc:value->string (if option-set option #f)))))
(validator
(if (not value-validator)
(lambda (customer) (list #t customer))
(lambda (customer)
(value-validator (convert-to-customer customer))))))
(gnc:make-option
section name sort-tag 'customer documentation-string getter
(lambda (customer)
(if (null? customer) (set! customer (default-getter)))
(set! customer (convert-to-customer customer))
(let* ((result (validator customer))
(valid (car result))
(value (cadr result)))
(if valid
(begin
(set! option (convert-to-guid value))
(set! option-set #t))
(gnc:error "Illegal customer value set"))))
(lambda () (convert-to-customer (default-getter)))
(gnc:restore-form-generator value->string)
(lambda (b p) (qof-book-set-option b option p))
(lambda (b p)
(let ((v (qof-book-get-option b p)))
(if (and v (string? v))
(begin
(set! option v)
(set! option-set #t)))))
validator
#f #f #f #f)))
;; Internally, values are always a guid. Externally, both guids and
;; vendor pointers may be used to set the value of the option. The
;; option always returns a single vendor pointer.
(define (gnc:make-vendor-option
section
name
sort-tag
documentation-string
default-getter
value-validator)
(define (convert-to-guid item)
(if (string? item)
item
(gncVendorReturnGUID item)))
(define (convert-to-vendor item)
(if (string? item)
(gncVendorLookupFlip item (gnc-get-current-book))
item))
(issue-deprecation-warning
"gnc:make-vendor-option is unused.")
(let* ((option (convert-to-guid (default-getter)))
(option-set #f)
(getter (lambda () (convert-to-vendor
(if option-set
option
(default-getter)))))
(value->string (lambda ()
(string-append
"'" (gnc:value->string (if option-set option #f)))))
(validator
(if (not value-validator)
(lambda (vendor) (list #t vendor))
(lambda (vendor)
(value-validator (convert-to-vendor vendor))))))
(gnc:make-option
section name sort-tag 'vendor documentation-string getter
(lambda (vendor)
(if (null? vendor) (set! vendor (default-getter)))
(set! vendor (convert-to-vendor vendor))
(let* ((result (validator vendor))
(valid (car result))
(value (cadr result)))
(if valid
(begin
(set! option (convert-to-guid value))
(set! option-set #t))
(gnc:error "Illegal vendor value set"))))
(lambda () (convert-to-vendor (default-getter)))
(gnc:restore-form-generator value->string)
(lambda (b p) (qof-book-set-option b option p))
(lambda (b p)
(let ((v (qof-book-get-option b p)))
(if (and v (string? v))
(begin
(set! option v)
(set! option-set #t)))))
validator
#f #f #f #f)))
;; Internally, values are always a guid. Externally, both guids and
;; employee pointers may be used to set the value of the option. The
;; option always returns a single employee pointer.
(define (gnc:make-employee-option
section
name
sort-tag
documentation-string
default-getter
value-validator)
(define (convert-to-guid item)
(if (string? item)
item
(gncEmployeeReturnGUID item)))
(define (convert-to-employee item)
(if (string? item)
(gncEmployeeLookupFlip item (gnc-get-current-book))
item))
(issue-deprecation-warning
"gnc:make-employee-option is unused.")
(let* ((option (convert-to-guid (default-getter)))
(option-set #f)
(getter (lambda () (convert-to-employee
(if option-set
option
(default-getter)))))
(value->string (lambda ()
(string-append
"'" (gnc:value->string (if option-set option #f)))))
(validator
(if (not value-validator)
(lambda (employee) (list #t employee))
(lambda (employee)
(value-validator (convert-to-employee employee))))))
(gnc:make-option
section name sort-tag 'employee documentation-string getter
(lambda (employee)
(if (null? employee) (set! employee (default-getter)))
(set! employee (convert-to-employee employee))
(let* ((result (validator employee))
(valid (car result))
(value (cadr result)))
(if valid
(begin
(set! option (convert-to-guid value))
(set! option-set #t))
(gnc:error "Illegal employee value set"))))
(lambda () (convert-to-employee (default-getter)))
(gnc:restore-form-generator value->string)
(lambda (b p) (qof-book-set-option b option p))
(lambda (b p)
(let ((v (qof-book-get-option b p)))
(if (and v (string? v))
(begin
(set! option v)
(set! option-set #t)))))
validator
#f #f #f #f)))
;; Internally, values are always a type/guid pair. Externally, both
;; type/guid pairs and owner pointers may be used to set the value of
;; the option. The option always returns a single owner pointer.
(define (gnc:make-owner-option
section
name
sort-tag
documentation-string
default-getter
value-validator
owner-type)
(let ((option-value (gncOwnerNew)))
(define (convert-to-pair item)
(if (pair? item)
item
(cons (gncOwnerGetType item)
(gncOwnerReturnGUID item))))
(define (convert-to-owner pair)
(if (pair? pair)
(let ((type (car pair)))
(cond
((eqv? type GNC-OWNER-CUSTOMER)
(gncOwnerInitCustomer
option-value
(gncCustomerLookupFlip (cdr pair) (gnc-get-current-book)))
option-value)
((eqv? type GNC-OWNER-VENDOR)
(gncOwnerInitVendor
option-value
(gncVendorLookupFlip (cdr pair) (gnc-get-current-book)))
option-value)
((eqv? type GNC-OWNER-EMPLOYEE)
(gncOwnerInitEmployee
option-value
(gncEmployeeLookupFlip (cdr pair) (gnc-get-current-book)))
option-value)
((eqv? type GNC-OWNER-JOB)
(gncOwnerInitJob
option-value
(gncJobLookupFlip (cdr pair) (gnc-get-current-book)))
option-value)
(else '())))
pair))
(let* ((option (convert-to-pair (default-getter)))
(option-set #f)
(getter (lambda () (convert-to-owner
(if option-set
option
(default-getter)))))
(value->string (lambda ()
(string-append
"'" (gnc:value->string
(if option-set option #f)))))
(validator
(if (not value-validator)
(lambda (owner)
(let ((type (if (pair? owner)
(car owner)
(gncOwnerGetType owner))))
(if (equal? type owner-type)
(list #t owner)
(list #f "Owner-Type Mismatch"))))
(lambda (owner)
(value-validator (convert-to-owner owner))))))
(gnc:make-option
section name sort-tag 'owner documentation-string getter
(lambda (owner)
(if (null? owner) (set! owner (default-getter)))
(set! owner (convert-to-owner owner))
(let* ((result (validator owner))
(valid (car result))
(value (cadr result)))
(if valid
(begin
(set! option (convert-to-pair value))
(set! option-set #t))
(gnc:error "Illegal owner value set"))))
(lambda () (convert-to-owner (default-getter)))
(gnc:restore-form-generator value->string)
(lambda (b p)
(qof-book-set-option b (symbol->string (car option))
(append p '("type")))
(qof-book-set-option b (cdr option)
(append p '("value"))))
(lambda (b p)
(let ((t (qof-book-get-option b (append p '("type"))))
(v (qof-book-get-option b (append p '("value")))))
(if (and t v (string? t) (string? v))
(begin
(set! option (cons (string->symbol t) v))
(set! option-set #t)))))
validator
owner-type #f #f #f))))
;; Internally, values are always a guid. Externally, both guids and
;; taxtable pointers may be used to set the value of the option. The
;; option always returns a single taxtable pointer.
(define (gnc:make-taxtable-option
section
name
sort-tag
documentation-string
default-getter
value-validator)
(define (convert-to-guid item)
(if (string? item)
item
(gncTaxTableReturnGUID item)))
(define (convert-to-taxtable item)
(if (string? item)
(gncTaxTableLookupFlip item (gnc-get-current-book))
item))
(let* ((option (convert-to-guid (default-getter)))
(option-set #f)
(getter (lambda () (convert-to-taxtable
(if option-set
option
(default-getter)))))
(value->string (lambda ()
(string-append
"'" (gnc:value->string (if option-set option #f)))))
(validator
(if (not value-validator)
(lambda (taxtable) (list #t taxtable))
(lambda (taxtable)
(value-validator (convert-to-taxtable taxtable))))))
(gnc:make-option
section name sort-tag 'taxtable documentation-string getter
(lambda (taxtable)
(if (null? taxtable) (set! taxtable (default-getter)))
(set! taxtable (convert-to-taxtable taxtable))
(let* ((result (validator taxtable))
(valid (car result))
(value (cadr result)))
(if valid
(begin
(set! option (convert-to-guid value))
(set! option-set #t))
(gnc:error "Illegal taxtable value set"))))
(lambda () (convert-to-taxtable (default-getter)))
(gnc:restore-form-generator value->string)
(lambda (b p) (qof-book-set-option b option p))
(lambda (b p)
(let ((v (qof-book-get-option b p)))
(if (and v (string? v))
(begin
(set! option v)
(set! option-set #t)))))
validator
#f #f #f #f)))
;; This defines an option to set a counter value. This is a slightly
;; different kind of option: Unlike all other options, the values edited
;; by this option are not saved in the "options"/<section> kvm slot, but
;; in the "counters" slot. This is mostly due to backwards compatibility
;; and partly because counters are a bit different from other options
;; anyway.
;;
;; This is implemented by overriding the scm->kvp and kvp->scm methods
;; to ignore the kvp path passed and replace it with a hardcoded
;; "counters".
(define (gnc:make-counter-option
section
name
key
sort-tag
documentation-string
default-value)
(let ((option (gnc:make-number-range-option
section name sort-tag documentation-string
default-value 0 999999999 0 1)))
(gnc:set-option-scm->kvp
option
(lambda (b p)
(qof-book-set-option
b (inexact->exact ((gnc:option-getter option)))
(list "counters" key))))
(gnc:set-option-kvp->scm
option
(lambda (b p)
(let ((v (qof-book-get-option b (list "counters" key))))
(if (and v (integer? v))
((gnc:option-setter option) v)))))
option))
;; This defines an option to set a counter format, which has the same
;; exception as gnc:make-counter-option above.
;; Note this function uses a hack to make sure there never is a default value
;; (default-value is set to #f and value subsequently set to whatever was passed as default-value)
;; This hack was introduced to fix https://bugs.gnucash.org/show_bug.cgi?id=687504
(define (gnc:make-counter-format-option
section
name
key
sort-tag
documentation-string
default-value)
(let ((option (gnc:make-string-option
section name sort-tag documentation-string #f)))
(gnc:option-set-value option default-value)
(gnc:set-option-scm->kvp
option
(lambda (b p)
(let ((value ((gnc:option-getter option)))
(path (string-concatenate (list "counter_formats/" key))))
(qof-book-set-string-option b path value))))
(gnc:set-option-kvp->scm
option
(lambda (b p)
(let* ((path (string-concatenate (list "counter_formats/" key)))
(v (qof-book-get-string-option b path)))
(if (and v (string? v))
((gnc:option-setter option) v)))))
option))
(export gnc:make-invoice-option)
(export gnc:make-customer-option)
(export gnc:make-vendor-option)
(export gnc:make-employee-option)
(export gnc:make-owner-option)
(export gnc:make-taxtable-option)
(export gnc:make-counter-option)
(export gnc:make-counter-format-option)