1 package SL::Helper::Inventory;
6 use Exporter qw(import);
7 use List::Util qw(min sum);
8 use List::UtilsBy qw(sort_by);
9 use List::MoreUtils qw(any);
12 use SL::Locale::String qw(t8);
13 use SL::MoreCommon qw(listify);
14 use SL::DBUtils qw(selectall_hashref_query selectrow_query);
15 use SL::DB::TransferType;
16 use SL::Helper::Number qw(_round_qty _qty);
19 our @EXPORT_OK = qw(get_stock get_onhand allocate allocate_for_assembly produce_assembly check_constraints);
20 our %EXPORT_TAGS = (ALL => \@EXPORT_OK);
22 sub _get_stock_onhand {
25 my $onhand_mode = !!$params{onhand};
27 my @selects = ('SUM(qty) as qty');
33 my @ids = map { ref $_ ? $_->id : $_ } listify($params{part});
34 push @where, sprintf "parts_id IN (%s)", join ', ', ("?") x @ids;
39 my @ids = map { ref $_ ? $_->id : $_ } listify($params{bin});
40 push @where, sprintf "bin_id IN (%s)", join ', ', ("?") x @ids;
44 if ($params{warehouse}) {
45 my @ids = map { ref $_ ? $_->id : $_ } listify($params{warehouse});
46 push @where, sprintf "warehouse.id IN (%s)", join ', ', ("?") x @ids;
50 if ($params{chargenumber}) {
51 my @ids = listify($params{chargenumber});
52 push @where, sprintf "chargenumber IN (%s)", join ', ', ("?") x @ids;
57 push @where, sprintf "shippingdate <= ?";
58 push @values, $params{date};
61 if ($params{bestbefore}) {
62 push @where, sprintf "bestbefore >= ?";
63 push @values, $params{bestbefore};
67 if ($params{onhand} && !$params{warehouse}) {
68 push @where, 'NOT warehouse.forreserve';
72 if ($params{onhand} && !$params{reserve_for}) {
73 push @where, 'reserve_for_id IS NULL AND reserve_for_table IS NULL';
76 if ($params{reserve_for}) {
77 my @objects = listify($params{chargenumber});
79 push @tokens, ( "(reserve_for_id = ? AND reserve_for_table = ?)") x @objects;
80 push @values, map { ($_->id, $_->meta->table) } @objects;
81 push @where, '(' . join(' OR ', @tokens) . ')';
86 part => [ qw(parts_id) ],
87 bin => [ qw(bin_id inventory.warehouse_id warehouse.forreserve)],
88 warehouse => [ qw(inventory.warehouse_id warehouse.forreserve) ],
89 chargenumber => [ qw(chargenumber) ],
90 bestbefore => [ qw(bestbefore) ],
91 reserve_for => [ qw(reserve_for_id reserve_for_table) ],
92 for_allocate => [ qw(parts_id bin_id inventory.warehouse_id warehouse.forreserve chargenumber bestbefore reserve_for_id reserve_for_table) ],
96 for (listify($params{by})) {
97 my $selects = $allowed_by{$_} or Carp::croak("unknown option for by: $_");
98 push @selects, @$selects;
99 push @groups, @$selects;
103 my $select = join ',', @selects;
104 my $where = @where ? 'WHERE ' . join ' AND ', @where : '';
105 my $group_by = @groups ? 'GROUP BY ' . join ', ', @groups : '';
108 SELECT $select FROM inventory
109 LEFT JOIN bin ON bin_id = bin.id
110 LEFT JOIN warehouse ON bin.warehouse_id = warehouse.id
115 my $results = selectall_hashref_query($::form, SL::DB->client->dbh, $query, @values);
118 part => 'SL::DB::Manager::Part',
119 bin => 'SL::DB::Manager::Bin',
120 warehouse => 'SL::DB::Manager::Warehouse',
121 reserve_for => undef,
127 warehouse => 'warehouse_id',
130 if ($params{by} && $params{with_objects}) {
131 for my $with_object (listify($params{with_objects})) {
132 Carp::croak("unknown with_object $with_object") if !exists $with_objects{$with_object};
134 if (my $manager = $with_objects{$with_object}) {
135 my $slot = $slots{$with_object};
136 next if !(my @ids = map { $_->{$slot} } @$results);
137 my $objects = $manager->get_all(query => [ id => \@ids ]);
138 my %objects_by_id = map { $_->id => $_ } @$objects;
140 $_->{$with_object} = $objects_by_id{$_->{$slot}} for @$results;
142 # need to fetch all reserve_for_table partitions
150 return $results->[0]{qty};
155 _get_stock_onhand(@_, onhand => 0);
159 _get_stock_onhand(@_, onhand => 1);
165 my $part = $params{part} or Carp::croak('allocate needs a part');
166 my $qty = $params{qty} or Carp::croak('allocate needs a qty');
168 return () if $qty <= 0;
170 my $results = get_stock(part => $part, by => 'for_allocate');
171 my %bin_whitelist = map { (ref $_ ? $_->id : $_) => 1 } listify($params{bin});
172 my %wh_whitelist = map { (ref $_ ? $_->id : $_) => 1 } listify($params{warehouse});
173 my %chargenumbers = map { (ref $_ ? $_->id : $_) => 1 } listify($params{chargenumber});
174 my %reserve_whitelist;
175 if ($params{reserve_for}) {
176 $reserve_whitelist{ $_->meta->table }{ $_->id } = 1 for listify($params{reserve_for});
179 # filter the results. we don't want:
181 # - bins that are reserve but not in the white-list of warehouses or bins
182 # - reservations that are not white-listed
184 my @filtered_results = grep {
185 (!$_->{forreserve} || $bin_whitelist{$_->{bin_id}} || $wh_whitelist{$_->{warehouse_id}})
186 && (!$_->{reserve_for_id} || $reserve_whitelist{ $_->{reserve_for_table} }{ $_->{reserve_for_id} })
189 # sort results so that reserve_for is first, then chargenumbers, then wanted bins, then wanted warehouses
190 my @sorted_results = sort {
191 (!!$b->{reserve_for_id}) <=> (!!$a->{reserve_for_id}) # sort by existing reserve_for_id first.
192 || exists $chargenumbers{$b->{chargenumber}} <=> exists $chargenumbers{$a->{chargenumber}} # then prefer wanted chargenumbers
193 || exists $bin_whitelist{$b->{bin_id}} <=> exists $bin_whitelist{$a->{bin_id}} # then prefer wanted bins
194 || exists $wh_whitelist{$b->{warehouse_id}} <=> exists $wh_whitelist{$a->{warehouse_id}} # then prefer wanted bins
199 for my $chunk (@sorted_results) {
200 my $qty = min($chunk->{qty}, $rest_qty);
202 push @allocations, SL::Helper::Inventory::Allocation->new(
203 parts_id => $chunk->{parts_id},
205 comment => $params{comment},
206 bin_id => $chunk->{bin_id},
207 warehouse_id => $chunk->{warehouse_id},
208 chargenumber => $chunk->{chargenumber},
209 bestbefore => $chunk->{bestbefore},
210 reserve_for_id => $chunk->{reserve_for_id},
211 reserve_for_table => $chunk->{reserve_for_table},
214 $rest_qty -= _round_qty($qty);
216 $rest_qty = _round_qty($rest_qty);
217 last if $rest_qty == 0;
220 die SL::X::Inventory::Allocation->new(
221 error => 'not enough to allocate',
222 msg => t8("can not allocate #1 units of #2, missing #3 units", _qty($qty), $part->displayable_name, _qty($rest_qty)),
225 if ($params{constraints}) {
226 check_constraints($params{constraints},\@allocations);
232 sub allocate_for_assembly {
235 my $part = $params{part} or Carp::croak('allocate needs a part');
236 my $qty = $params{qty} or Carp::croak('allocate needs a qty');
238 Carp::croak('not an assembly') unless $part->is_assembly;
240 my %parts_to_allocate;
242 for my $assembly ($part->assemblies) {
243 next if $assembly->part->dispotype eq 'no_stock';
245 my $tmpqty = $assembly->assembly_part->is_recipe ? $assembly->qty * $qty / $assembly->assembly_part->scalebasis
246 : $assembly->part->unit eq 'Stck' ? ceil($assembly->qty * $qty)
247 : $assembly->qty * $qty;
248 $parts_to_allocate{ $assembly->part->id } //= 0;
249 $parts_to_allocate{ $assembly->part->id } += $tmpqty;
254 for my $part_id (keys %parts_to_allocate) {
255 my $part = SL::DB::Part->load_cached($part_id);
256 push @allocations, allocate(%params, part => $part, qty => $parts_to_allocate{$part_id});
262 sub check_constraints {
263 my ($constraints, $allocations) = @_;
264 if ('CODE' eq ref $constraints) {
265 if (!$constraints->(@$allocations)) {
266 die SL::X::Inventory::Allocation->new(
267 error => 'allocation constraints failure',
268 msg => t8("Allocations didn't pass constraints"),
272 croak 'constraints needs to be a hashref' unless 'HASH' eq ref $constraints;
274 my %supported_constraints = (
276 warehouse_id => 'warehouse_id',
277 chargenumber => 'chargenumber',
280 for (keys %$constraints ) {
281 croak "unsupported constraint '$_'" unless $supported_constraints{$_};
283 my %whitelist = map { (ref $_ ? $_->id : $_) => 1 } listify($constraints->{$_});
284 my $accessor = $supported_constraints{$_};
286 if (any { !$whitelist{$_->$accessor} } @$allocations) {
287 my %error_constraints = (
288 bin_id => t8('Bins'),
289 warehouse_id => t8('Warehouses'),
290 chargenumber => t8('Chargenumbers'),
292 my @allocs = grep { $whitelist{$_->$accessor} } @$allocations;
293 my $needed = sum map { $_->qty } grep { !$whitelist{$_->$accessor} } @$allocations;
294 my $err = t8("Cannot allocate parts.");
295 $err .= ' '.t8('part \'#\'1 in bin \'#2\' only with qty #3 (need additional #4) and chargenumber \'#5\'.',
296 SL::DB::Part->load_cached($_->parts_id)->description,
297 SL::DB::Bin->load_cached($_->bin_id)->full_description,
298 _qty($_->qty), _qty($needed), $_->chargenumber ? $_->chargenumber : '--') for @allocs;
299 die SL::X::Inventory::Allocation->new(
300 error => 'allocation constraints failure',
308 sub produce_assembly {
311 my $part = $params{part} or Carp::croak('produce_assembly needs a part');
312 my $qty = $params{qty} or Carp::croak('produce_assembly needs a qty');
314 my $allocations = $params{allocations};
315 if ($params{auto_allocate}) {
316 Carp::croak("produce_assembly: can't have both allocations and auto_allocate") if $params{allocations};
317 $allocations = [ allocate_for_assembly(part => $part, qty => $qty) ];
319 Carp::croak("produce_assembly: need allocations or auto_allocate to produce something") if !$params{allocations};
320 $allocations = $params{allocations};
323 my $bin = $params{bin} or Carp::croak("need target bin");
324 my $chargenumber = $params{chargenumber};
325 my $bestbefore = $params{bestbefore};
326 my $oe_id = $params{oe_id};
327 my $comment = $params{comment} // '';
329 my $production_order_item = $params{production_order_item};
330 my $invoice = $params{invoice};
331 my $project = $params{project};
332 my $reserve_for = $params{reserve_for};
334 my $reserve_for_id = $reserve_for ? $reserve_for->id : undef;
335 my $reserve_for_table = $reserve_for ? $reserve_for->meta->table : undef;
337 my $shippingdate = $params{shippingsdate} // DateTime->now_local;
339 my $trans_id = $params{trans_id};
340 ($trans_id) = selectrow_query($::form, SL::DB->client->dbh, qq|SELECT nextval('id')| ) unless $trans_id;
342 my $trans_type_out = SL::DB::Manager::TransferType->find_by(direction => 'out', description => 'used');
343 my $trans_type_in = SL::DB::Manager::TransferType->find_by(direction => 'in', description => 'assembled');
345 # check whether allocations are sane
346 if (!$params{no_check_allocations} && !$params{auto_allocate}) {
347 my %allocations_by_part = map { $_->parts_id => $_->qty } @$allocations;
348 for my $assembly ($part->assemblies) {
349 $allocations_by_part{ $assembly->parts_id } -= $assembly->qty * $qty; # TODO recipe factor
352 die "allocations are insufficient for production" if any { $_ < 0 } values %allocations_by_part;
356 for my $allocation (@$allocations) {
357 push @transfers, SL::DB::Inventory->new(
358 trans_id => $trans_id,
360 qty => -$allocation->qty,
361 trans_type => $trans_type_out,
362 shippingdate => $shippingdate,
363 employee => SL::DB::Manager::Employee->current,
364 oe_id => $allocation->oe_id,
368 push @transfers, SL::DB::Inventory->new(
369 trans_id => $trans_id,
370 trans_type => $trans_type_in,
374 warehouse => $bin->warehouse_id,
375 chargenumber => $chargenumber,
376 bestbefore => $bestbefore,
377 reserve_for_id => $reserve_for_id,
378 reserve_for_table => $reserve_for_table,
379 shippingdate => $shippingdate,
383 prod => $production_order_item,
384 employee => SL::DB::Manager::Employee->current,
388 SL::DB->client->with_transaction(sub {
389 $_->save for @transfers;
392 die SL::DB->client->error;
398 package SL::Helper::Inventory::Allocation {
399 my @attributes = qw(parts_id qty bin_id warehouse_id chargenumber bestbefore comment reserve_for_id reserve_for_table oe_id);
400 my %attributes = map { $_ => 1 } @attributes;
402 for my $name (@attributes) {
404 *{"SL::Helper::Inventory::Allocation::$name"} = sub { $_[0]{$name} };
408 my ($class, %params) = @_;
410 Carp::croak("missing attribute $_") for grep { !exists $params{$_} } @attributes;
411 Carp::croak("unknown attribute $_") for grep { !exists $attributes{$_} } keys %params;
412 Carp::croak("$_ must be set") for grep { !$params{$_} } qw(parts_id qty bin_id);
413 Carp::croak("$_ must be positive") for grep { !($params{$_} > 0) } qw(parts_id qty bin_id);
415 bless { %params }, $class;
425 SL::WH - Warehouse and Inventory API
429 # See description for an intro to the concepts used here.
431 use SL::Helper::Inventory;
433 # stock, get "what's there" for a part with various conditions:
434 my $qty = SL::Helper::Inventory->get_stock(part => $part); # how much is on stock?
435 my $qty = SL::Helper::Inventory->get_stock(part => $part, date => $date); # how much was on stock at a specific time?
436 my $qty = SL::Helper::Inventory->get_stock(part => $part, bin => $bin); # how is on stock in a specific bin?
437 my $qty = SL::Helper::Inventory->get_stock(part => $part, warehouse => $warehouse); # how is on stock in a specific warehouse?
438 my $qty = SL::Helper::Inventory->get_stock(part => $part, chargenumber => $chargenumber); # how is on stock of a specific chargenumber?
440 # onhand, get "what's available" for a part with various conditions:
441 my $qty = SL::Helper::Inventory->get_onhand(part => $part); # how much is available?
442 my $qty = SL::Helper::Inventory->get_onhand(part => $part, date => $date); # how much was available at a specific time?
443 my $qty = SL::Helper::Inventory->get_onhand(part => $part, bin => $bin); # how much is available in a specific bin?
444 my $qty = SL::Helper::Inventory->get_onhand(part => $part, warehouse => $warehouse); # how much is available in a specific warehouse?
445 my $qty = SL::Helper::Inventory->get_onhand(part => $part, chargenumber => $chargenumber); # how much is availbale of a specific chargenumber?
446 my $qty = SL::Helper::Inventory->get_onhand(part => $part, reserve_for => $order); # how much is available if you include this reservation?
449 my $data = SL::Helper::Inventory->get_onhand(
450 warehouse => $warehouse,
451 by => [ qw(bin part chargenumber reserve_for) ],
452 with_objects => [ qw(bin part) ],
456 my @allocations, SL::Helper::Inventory->allocate(
457 part => $part, # part_id works too
458 qty => $qty, # must be positive
459 chargenumber => $chargenumber, # optional, may be arrayref. if provided these charges will be used first
460 bestbefore => $datetime, # optional, defaults to today. items with bestbefore prior to that date wont be used
461 reserve_for => $object, # optional, may be arrayref. if provided the qtys reserved for these objects will be used first
462 bin => $bin, # optional, may be arrayref. if provided
465 # shortcut to allocate all that is needed for producing an assembly, will use chargenumbers as appropriate
466 my @allocations, SL::Helper::Inventory->allocate_for_assembly(
467 part => $assembly, # part_id works too
468 qty => $qty, # must be positive
471 # create allocation manually, bypassing checks, all of these need to be passed, even undefs
472 my $allocation = SL::Helper::Inventory::Allocation->new(
473 part_id => $part->id,
475 bin_id => $bin_obj->id,
476 warehouse_id => $bin_obj->warehouse_id,
477 chargenumber => '1823772365',
479 reserve_for_id => undef,
480 reserve_for_table => undef,
481 oe_id => $my_document,
485 SL::Helper::Inventory->produce_assembly(
486 part => $part, # target assembly
488 allocations => \@allocations, # allocations to use. alternatively use "auto_allocate => 1,"
491 bin => $bin, # needed unless a global standard target is configured
492 chargenumber => $chargenumber, # optional
493 bestbefore => $datetime, # optional
494 comment => $comment, # optional
496 # links, all optional
497 production_order_item => $item,
498 reserve_for => $object,
503 New functions for the warehouse and inventory api.
505 The WH api currently has three large shortcomings. It is very hard to just get
506 the current stock for an item, it's extremely complicated to use it to produce
507 assemblies while ensuring that no stock ends up negative, and it's very hard to
508 use it to get an overview over the actual contents of the inventory.
510 The first problem has spawned several dozen small functions in the program that
511 try to implement that, and those usually miss some details. They may ignore
512 reservations, or reserve warehouses, or bestbefore times.
514 To get this cleaned up a bit this code introduces two concepts: stock and onhand.
516 Stock is defined as the actual contents of the inventory, everything that is
517 there. Onhand is what is available, which means things that are stocked and not
518 reserved and not expired.
520 The two new functions C<get_stock> and C<get_onhand> encapsulate these principles and
521 allow simple access with some optional filters for chargenumbers or warehouses.
522 Both of them have a batch mode that can be used to get these information to
523 supllement smiple reports.
525 To address the safe assembly creation a new function has been added.
526 C<allocate> will try to find the requested quantity of a part in the inventory
527 and will return allocations of it which can then be used to create the
528 assembly. Allocation will happen with the C<onhand> semantics defined above,
529 meaning that by default no reservations or expired goods will be used. The
530 caller can supply hints of what shold be used and in those cases chargenumber
531 and reservations will be used up as much as possible first. C<allocate> will
532 always try to fulfil the request even beyond those. Should the required amount
533 not be stocked, allocate will throw an exception.
535 C<produce_assembly> has been rewritten to only accept parameters about the
536 target of the production, and requires allocations to complete the request. The
537 allocations can be supplied manually, or can be generated automatically.
538 C<produce_assembly> will check whether enough allocations are given to create
539 the recipe, but will not check whether the allocations are backed. If the
540 allocations are not sufficient or if the auto-allocation fails an exception
541 is returned. If you need to produce something that is not in the inventory, you
542 can bypass those checks by creating the allocations yourself (see
543 L</"ALLOCATION DATA STRUCTURE">).
545 Note: this is only intended to cover the scenarios described above. For other cases:
551 If you need the reserved amount for an order use C<SL::DB::Helper::Reservation>
556 If you need actual inventory objects because of record links, prod_id links or
557 something like that load them directly. And strongly consider redesigning that,
558 because it's really fragile.
562 You need weight or accounting information you're on your own. The inventory api
563 only concerns itself with the raw quantities.
567 If you need the first stock date of parts, or anything related to a specific
568 transfer type or direction, this is not covered yet.
576 =item * get_stock PARAMS
578 Returns for single parts how much actually exists in the inventory.
586 The part. Must be present without C<by>. May be arrayref with C<by>. Can be object or id.
590 If given, will only return stock on these bins. Optional. May be array, May be object or id.
594 If given, will only return stock on these warehouses. Optional. May be array, May be object or id.
598 If given, will return stock as it were on this timestamp. Optional. Must be L<DateTime> object.
602 If given, will only show stock with this chargenumber. Optional. May be array.
606 See L</"STOCK/ONHAND REPORT MODE">
610 See L</"STOCK/ONHAND REPORT MODE">
614 Will return a single qty normally, see L</"STOCK/ONHAND REPORT MODE"> for batch
615 mode when C<by> is given.
617 =item * get_onhand PARAMS
619 Returns for single parts how much is available in the inventory. That excludes:
620 reserved quantities, reserved warehouses and stock with expired bestbefore.
622 It takes all options of L</get_stock> but treats some of the differently and has some additional ones:
628 Usually C<onhand> will not include results from warehouses with the C<reserve>
629 flag. However giving an explicit list of warehouses will include there in the
630 search, as well as all others.
634 =item * reserve_warehouse
640 =item * allocate PARAMS
652 Bin object. Optional.
656 Warehouse object. Optional.
668 Needs to be a rose object, where id and table can be extracted. Optional.
672 Tries to allocate the required quantity using what is currently onhand. If
673 given any of C<bin>, C<warehouse>, C<chargenumber>, C<reserve_for>
676 =item * allocate_for_assembly PARAMS
678 Shortcut to allocate everything for an assembly. Takes the same arguments. Will
679 compute the required amount for each assembly part and allocate all of them.
681 =item * produce_assembly
686 =head1 STOCK/ONHAND REPORT MODE
688 If the special option C<by> is given with an arrayref, the result will instead
689 be an arrayref of partitioned stocks by those fields. Valid partitions are:
695 If this is given, part is optional in the parameters
709 Note: If you want to use the returned data to create allocations you I<need> to
710 enable all of these. To make this easier a special shortcut exists
712 In this mode, C<with_objects> can be used to load C<warehouse>, C<bin>,
713 C<parts>, and the C<reserve_for> objects in one go, just like with Rose. They
714 need to be present in C<by> before that though.
716 =head1 ALLOCATION ALGORITHM
718 When calling allocate, the current onhand (== available stock) of the item will
719 be used to decide which bins/chargenumbers/bestbefore can be used.
721 In general allocate will try to make the request happen, and will use the
722 provided charges up first, and then tap everything else. If you need to only
723 I<exactly> use the provided charges, you'll need to craft the allocations
724 yourself. See L</"ALLOCATION DATA STRUCTURE"> for that.
726 If C<reserve_for> is given, those will be used up first too.
728 If C<reserved_warehouse> is given, those will be used up second.
730 If C<chargenumber> is given, those will be used up next.
732 After that normal quantities will be used.
734 These are tiebreakers and expected to rarely matter in reality. If you need
735 finegrained control over which allocation is used, you may want to get the
736 onhands yourself and select the appropriate ones.
738 Only quantities with C<bestbefore> unset or after the given date will be
739 considered. If more than one charge is eligible, the earlier C<bestbefore>
742 Allocations do NOT have an internal memory and can't react to other allocations
743 of the same part earlier. Never double allocate the same part within a
746 =head1 ALLOCATION DATA STRUCTURE
748 Allocations are instances of the helper class C<SL::Helper::Inventory::Allocation>. They require
749 each of the following attributes to be set at creation time:
765 =item * reserve_for_id
767 =item * reserve_for_table
771 Must be explicit set if the allocation needs also an (other) document.
775 C<chargenumber>, C<bestbefore>, C<reserve_for_id>, C<reserve_for_table> and oe_id may
776 be C<undef> (but must still be present at creation time). Instances are
777 considered immutable.
782 # whitelist constraints
786 bin_id => \@allowed_bins,
787 chargenumber => \@allowed_chargenumbers,
794 # only allow chargenumbers with specific format
795 all { $_->chargenumber =~ /^ C \d{8} - \a{d2} $/x } @_
798 # and must be all reservations
799 all { $_->reserve_for_id } @_;
803 C<allocation> is "best effort" in nature. It will take the C<bin>,
804 C<chargenumber> etc hints from the parameters, but will try it's bvest to
805 fulfil the request anyway and only bail out if it is absolutely not possible.
807 Sometimes you need to restrict allocations though. For this you can pass
808 additional constraints to C<allocate>. A constraint serves as a whitelist.
809 Every allocation must fulfil every constraint by having that attribute be one
812 In case even that is not enough, you may supply a custom check by passing a
813 function that will be given the allocation objects.
815 Note that both whitelists and constraints do not influence the order of
816 allocations, which is done purely from the initial parameters. They only serve
817 to reject allocations made in good faith which do fulfil required assertions.
819 =head1 ERROR HANDLING
821 C<allocate> and C<produce_assembly> will throw exceptions if the request can
822 not be completed. The usual reason will be insufficient onhand to allocate, or
823 insufficient allocations to process the request.
827 * define and describe error classes
828 * define wrapper classes for stock/onhand batch mode return values
829 * handle extra arguments in produce: shippingdate, project, oe
830 * clean up allocation helper class
831 * with objects for reservations
841 Sven Schöling E<lt>sven.schoeling@opendynamic.deE<gt>