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#====================================================================
# LX-Office ERP
# Copyright (C) 2004
# Based on SQL-Ledger Version 2.1.9
# Web http://www.lx-office.org
#
#=====================================================================
# SQL-Ledger Accounting
# Copyright (C) 1999-2003
#
# Author: Dieter Simader
# Email: dsimader@sql-ledger.org
# Web: http://www.sql-ledger.org
#
# Contributors:
#
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1335, USA.
#======================================================================
#
# Warehouse module
#
#======================================================================

package WH;

use Carp qw(croak);
use List::MoreUtils qw(any);

use SL::AM;
use SL::DBUtils;
use SL::DB::Inventory;
use SL::Form;
use SL::Locale::String qw(t8);
use SL::Util qw(trim);

use warnings;
use strict;

sub transfer {
$::lxdebug->enter_sub;

my ($self, @args) = @_;

if (!@args) {
$::lxdebug->leave_sub;
return;
}

require SL::DB::TransferType;
require SL::DB::Part;
require SL::DB::Employee;

my $employee = SL::DB::Manager::Employee->current;
my ($now) = selectrow_query($::form, $::form->get_standard_dbh, qq|SELECT current_date|);
my @directions = (undef, qw(out in transfer));

my $objectify = sub {
my ($transfer, $field, $class, @find_by) = @_;

@find_by = (description => $transfer->{$field}) unless @find_by;

if ($transfer->{$field} || $transfer->{"${field}_id"}) {
return ref $transfer->{$field} && $transfer->{$field}->isa($class) ? $transfer->{$field}
: $transfer->{$field} ? $class->_get_manager_class->find_by(@find_by)
: $class->_get_manager_class->find_by(id => $transfer->{"${field}_id"});
}
return;
};

my @trans_ids;

my $db = SL::DB::Inventory->new->db;
$db->with_transaction(sub{
while (my $transfer = shift @args) {
my $trans_id;
($trans_id) = selectrow_query($::form, $::form->get_standard_dbh, qq|SELECT nextval('id')|) if $transfer->{qty};

my $part = $objectify->($transfer, 'parts', 'SL::DB::Part');
my $unit = $objectify->($transfer, 'unit', 'SL::DB::Unit', name => $transfer->{unit});
my $qty = $transfer->{qty};
my $src_bin = $objectify->($transfer, 'src_bin', 'SL::DB::Bin');
my $dst_bin = $objectify->($transfer, 'dst_bin', 'SL::DB::Bin');
my $src_wh = $objectify->($transfer, 'src_warehouse', 'SL::DB::Warehouse');
my $dst_wh = $objectify->($transfer, 'dst_warehouse', 'SL::DB::Warehouse');
my $project = $objectify->($transfer, 'project', 'SL::DB::Project');

$src_wh ||= $src_bin->warehouse if $src_bin;
$dst_wh ||= $dst_bin->warehouse if $dst_bin;

my $direction = 0; # bit mask
$direction |= 1 if $src_bin;
$direction |= 2 if $dst_bin;

my $transfer_type_id;
if ($transfer->{transfer_type_id}) {
$transfer_type_id = $transfer->{transfer_type_id};
} else {
my $transfer_type = $objectify->($transfer, 'transfer_type', 'SL::DB::TransferType', direction => $directions[$direction],
description => $transfer->{transfer_type});
$transfer_type_id = $transfer_type->id;
}

my $stocktaking_qty = $transfer->{stocktaking_qty};

my %params = (
part => $part,
employee => $employee,
trans_type_id => $transfer_type_id,
project => $project,
trans_id => $trans_id,
shippingdate => !$transfer->{shippingdate} || $transfer->{shippingdate} eq 'current_date'
? $now : $transfer->{shippingdate},
map { $_ => $transfer->{$_} } qw(chargenumber bestbefore oe_id delivery_order_items_stock_id invoice_id comment),
);

if ($unit) {
$qty = $unit->convert_to($qty, $part->unit_obj);
$stocktaking_qty = $unit->convert_to($stocktaking_qty, $part->unit_obj);
}

$params{chargenumber} ||= '';

my @inventories;
if ($qty && $direction & 1) {
push @inventories, SL::DB::Inventory->new(
%params,
warehouse => $src_wh,
bin => $src_bin,
qty => $qty * -1,
)->save;
}

if ($qty && $direction & 2) {
push @inventories, SL::DB::Inventory->new(
%params,
warehouse => $dst_wh->id,
bin => $dst_bin->id,
qty => $qty,
)->save;
# Standardlagerplatz in Stammdaten gleich mitverschieben
if (defined($transfer->{change_default_bin})){
$part->update_attributes(warehouse_id => $dst_wh->id, bin_id => $dst_bin->id);
}
}

# Record stocktaking if requested.
# This is only possible if transfer was a stock in or stock out,
# but not both (transfer).
if ($transfer->{record_stocktaking}) {
die 'Stocktaking can only be recorded for stock in or stock out, but not on a transfer.' if scalar @inventories > 1;

my $inventory_id;
$inventory_id = $inventories[0]->id if $inventories[0];

SL::DB::Stocktaking->new(
inventory_id => $inventory_id,
warehouse => $src_wh || $dst_wh,
bin => $src_bin || $dst_bin,
parts_id => $part->id,
employee_id => $employee->id,
qty => $stocktaking_qty,
comment => $transfer->{comment},
cutoff_date => $transfer->{stocktaking_cutoff_date},
chargenumber => $transfer->{chargenumber},
bestbefore => $transfer->{bestbefore},
)->save;

}

push @trans_ids, $trans_id;
}

1;
}) or do {
$::form->error("Warehouse transfer error: " . join("\n", (split(/\n/, $db->error))[0..2]));
};

$::lxdebug->leave_sub;

return @trans_ids;
}

sub get_warehouse_journal {
$main::lxdebug->enter_sub();

my $self = shift;
my %filter = @_;

my $myconfig = \%main::myconfig;
my $form = $main::form;

my $all_units = AM->retrieve_units($myconfig, $form);

# connect to database
my $dbh = $form->get_standard_dbh($myconfig);

# filters
my (@filter_ary, @filter_vars, $joins, %select_tokens, %select);

if ($filter{warehouse_id}) {
push @filter_ary, "w1.id = ? OR w2.id = ?";
push @filter_vars, $filter{warehouse_id}, $filter{warehouse_id};
}

if ($filter{bin_id}) {
push @filter_ary, "b1.id = ? OR b2.id = ?";
push @filter_vars, $filter{bin_id}, $filter{bin_id};
}

if ($filter{partnumber}) {
push @filter_ary, "p.partnumber ILIKE ?";
push @filter_vars, like($filter{partnumber});
}

if ($filter{description}) {
push @filter_ary, "(p.description ILIKE ?)";
push @filter_vars, like($filter{description});
}

if ($filter{classification_id}) {
push @filter_ary, "p.classification_id = ?";
push @filter_vars, $filter{classification_id};
}

if ($filter{chargenumber}) {
push @filter_ary, "i1.chargenumber ILIKE ?";
push @filter_vars, like($filter{chargenumber});
}

if (trim($form->{bestbefore})) {
push @filter_ary, "?::DATE = i1.bestbefore::DATE";
push @filter_vars, trim($form->{bestbefore});
}

if (trim($form->{fromdate})) {
push @filter_ary, "? <= i1.shippingdate";
push @filter_vars, trim($form->{fromdate});
}

if (trim($form->{todate})) {
push @filter_ary, "? >= i1.shippingdate";
push @filter_vars, trim($form->{todate});
}

if ($form->{l_employee}) {
$joins .= "";
}

# prepare qty comparison for later filtering
my ($f_qty_op, $f_qty, $f_qty_base_unit);
if ($filter{qty_op} && defined($filter{qty}) && $filter{qty_unit} && $all_units->{$filter{qty_unit}}) {
$f_qty_op = $filter{qty_op};
$f_qty = $filter{qty} * $all_units->{$filter{qty_unit}}->{factor};
$f_qty_base_unit = $all_units->{$filter{qty_unit}}->{base_unit};
}

map { $_ = "(${_})"; } @filter_ary;

# if of a property number or description is requested,
# automatically check the matching id too.
map { $form->{"l_${_}id"} = "Y" if ($form->{"l_${_}"} || $form->{"l_${_}number"}); } qw(warehouse bin);

# customize shown entry for not available fields.
$filter{na} = '-' unless $filter{na};

# make order, search in $filter and $form
my $sort_col = $form->{sort};
my $sort_order = $form->{order};

$sort_col = $filter{sort} unless $sort_col;
$sort_col = 'shippingdate' if $sort_col eq 'date';
$sort_order = ($sort_col = 'shippingdate') unless $sort_col;

my %orderspecs = (
'shippingdate' => ['shippingdate', 'r_itime', 'r_parts_id'],
'bin_to' => ['bin_to', 'r_itime', 'r_parts_id'],
'bin_from' => ['bin_from', 'r_itime', 'r_parts_id'],
'warehouse_to' => ['warehouse_to, r_itime, r_parts_id'],
'warehouse_from' => ['warehouse_from, r_itime, r_parts_id'],
'partnumber' => ['partnumber'],
'partdescription'=> ['partdescription'],
'partunit' => ['partunit, r_itime, r_parts_id'],
'qty' => ['qty, r_itime, r_parts_id'],
'oe_id' => ['oe_id'],
'comment' => ['comment'],
'trans_type' => ['trans_type'],
'employee' => ['employee'],
'projectnumber' => ['projectnumber'],
'chargenumber' => ['chargenumber'],
);

$sort_order = $filter{order} unless $sort_order;
my $ASC = ($sort_order ? " DESC" : " ASC");
my $sort_spec = join("$ASC , ", @{$orderspecs{$sort_col}}). " $ASC";

my $where_clause = @filter_ary ? join(" AND ", @filter_ary) . " AND " : '';

my ($cvar_where, @cvar_values) = CVar->build_filter_query(
module => 'IC',
trans_id_field => 'p.id',
filter => $form,
sub_module => undef,
);

if ($cvar_where) {
$where_clause .= qq| ($cvar_where) AND |;
push @filter_vars, @cvar_values;
}

$select_tokens{'trans'} = {
"parts_id" => "i1.parts_id",
"qty" => "ABS(SUM(i1.qty))",
"partnumber" => "p.partnumber",
"partdescription" => "p.description",
"classification_id" => "p.classification_id",
"part_type" => "p.part_type",
"bin" => "b.description",
"chargenumber" => "i1.chargenumber",
"bestbefore" => "i1.bestbefore",
"warehouse" => "w.description",
"partunit" => "p.unit",
"bin_from" => "b1.description",
"bin_to" => "b2.description",
"warehouse_from" => "w1.description",
"warehouse_to" => "w2.description",
"comment" => "i1.comment",
"trans_type" => "tt.description",
"trans_id" => "i1.trans_id",
"id" => "i1.id",
"oe_id" => "COALESCE(i1.oe_id, i2.oe_id)",
"invoice_id" => "COALESCE(i1.invoice_id, i2.invoice_id)",
"date" => "i1.shippingdate",
"itime" => "i1.itime",
"shippingdate" => "i1.shippingdate",
"employee" => "e.name",
"projectnumber" => "COALESCE(pr.projectnumber, '$filter{na}')",
};

$select_tokens{'out'} = {
"bin_to" => "'$filter{na}'",
"warehouse_to" => "'$filter{na}'",
};

$select_tokens{'in'} = {
"bin_from" => "'$filter{na}'",
"warehouse_from" => "'$filter{na}'",
};

$form->{l_classification_id} = 'Y';
$form->{l_trans_id} = 'Y';
$form->{l_part_type} = 'Y';
$form->{l_itime} = 'Y';
$form->{l_invoice_id} = $form->{l_oe_id} if $form->{l_oe_id};

# build the select clauses.
# take all the requested ones from the first hash and overwrite them from the out/in hashes if present.
for my $i ('trans', 'out', 'in') {
$select{$i} = join ', ', map { +/^l_/; ($select_tokens{$i}{"$'"} || $select_tokens{'trans'}{"$'"}) . " AS r_$'" }
( grep( { !/qty$/ and !/^l_cvar/ and /^l_/ and $form->{$_} eq 'Y' } keys %$form), qw(l_parts_id l_qty l_partunit l_shippingdate) );
}

my $group_clause = join ", ", map { +/^l_/; "r_$'" }
( grep( { !/qty$/ and !/^l_cvar/ and /^l_/ and $form->{$_} eq 'Y' } keys %$form), qw(l_parts_id l_partunit l_shippingdate l_itime) );

$where_clause = defined($where_clause) ? $where_clause : '';

my $query =
qq|SELECT * FROM (
SELECT DISTINCT $select{out}
FROM inventory i1
LEFT JOIN inventory i2 ON i1.trans_id = i2.trans_id AND i1.id = i2.id
LEFT JOIN parts p ON i1.parts_id = p.id
LEFT JOIN bin b1 ON i1.bin_id = b1.id
LEFT JOIN bin b2 ON i2.bin_id = b2.id
LEFT JOIN warehouse w1 ON i1.warehouse_id = w1.id
LEFT JOIN warehouse w2 ON i2.warehouse_id = w2.id
LEFT JOIN transfer_type tt ON i1.trans_type_id = tt.id
LEFT JOIN project pr ON i1.project_id = pr.id
LEFT JOIN employee e ON i1.employee_id = e.id
WHERE $where_clause i1.qty != 0 AND tt.direction = 'out' AND
i1.trans_id IN ( SELECT i.trans_id FROM inventory i GROUP BY i.trans_id HAVING COUNT(i.trans_id) >= 1 )
GROUP BY $group_clause

UNION

SELECT DISTINCT $select{in}
FROM inventory i1
LEFT JOIN inventory i2 ON i1.trans_id = i2.trans_id AND i1.id = i2.id
LEFT JOIN parts p ON i1.parts_id = p.id
LEFT JOIN bin b1 ON i1.bin_id = b1.id
LEFT JOIN bin b2 ON i2.bin_id = b2.id
LEFT JOIN warehouse w1 ON i1.warehouse_id = w1.id
LEFT JOIN warehouse w2 ON i2.warehouse_id = w2.id
LEFT JOIN transfer_type tt ON i1.trans_type_id = tt.id
LEFT JOIN project pr ON i1.project_id = pr.id
LEFT JOIN employee e ON i1.employee_id = e.id
WHERE $where_clause i1.qty != 0 AND tt.direction = 'in' AND
i1.trans_id IN ( SELECT i.trans_id FROM inventory i GROUP BY i.trans_id HAVING COUNT(i.trans_id) >= 1 )
GROUP BY $group_clause
ORDER BY r_${sort_spec}) AS lines WHERE r_qty != 0|;

my @all_vars = (@filter_vars,@filter_vars);

if ($filter{limit}) {
$query .= " LIMIT ?";
push @all_vars,$filter{limit};
}
if ($filter{offset}) {
$query .= " OFFSET ?";
push @all_vars, $filter{offset};
}

my $sth = prepare_execute_query($form, $dbh, $query, @all_vars);

my ($h_oe_id, $q_oe_id);
if ($form->{l_oe_id}) {
$q_oe_id = <<SQL;
SELECT dord.id AS id, dord.donumber AS number,
dord.record_type::text AS type
FROM delivery_orders dord
WHERE dord.id = ?

UNION

SELECT ar.id AS id, ar.invnumber AS number, 'sales_invoice' AS type
FROM ar
WHERE ar.id = (SELECT trans_id FROM invoice WHERE id = ?)

UNION

SELECT ap.id AS id, ap.invnumber AS number, 'purchase_invoice' AS type
FROM ap
WHERE ap.id = (SELECT trans_id FROM invoice WHERE id = ?)
SQL
$h_oe_id = prepare_query($form, $dbh, $q_oe_id);
}

my @contents = ();
while (my $ref = $sth->fetchrow_hashref("NAME_lc")) {
map { /^r_/; $ref->{"$'"} = $ref->{$_} } keys %$ref;
my $qty = $ref->{"qty"} * 1;

next unless ($qty > 0);

if ($f_qty_op) {
my $part_unit = $all_units->{$ref->{"partunit"}};
next unless ($part_unit && ($part_unit->{"base_unit"} eq $f_qty_base_unit));
$qty *= $part_unit->{"factor"};
next if (('=' eq $f_qty_op) && ($qty != $f_qty));
next if (('>=' eq $f_qty_op) && ($qty < $f_qty));
next if (('<=' eq $f_qty_op) && ($qty > $f_qty));
}

if ($h_oe_id && ($ref->{oe_id} || $ref->{invoice_id})) {
do_statement($form, $h_oe_id, $q_oe_id, $ref->{oe_id}, ($ref->{invoice_id}) x 2);
$ref->{oe_id_info} = $h_oe_id->fetchrow_hashref() || {};
}

push @contents, $ref;
}

$sth->finish();
$h_oe_id->finish() if $h_oe_id;

$main::lxdebug->leave_sub();

return @contents;
}

#
# This sub is the primary function to retrieve information about items in warehouses.
# $filter is a hashref and supports the following keys:
# - warehouse_id - will return matches with this warehouse_id only
# - partnumber - will return only matches where the given string is a substring of the partnumber
# - partsid - will return matches with this parts_id only
# - classification_id - will return matches with this parts with this classification only
# - description - will return only matches where the given string is a substring of the description
# - chargenumber - will return only matches where the given string is a substring of the chargenumber
# - bestbefore - will return only matches with this bestbefore date
# - ean - will return only matches where the given string is a substring of the ean as stored in the table parts (article)
# - charge_ids - must be an arrayref. will return contents with these ids only
# - expires_in - will only return matches that expire within the given number of days
# will also add a column named 'has_expired' containing if the match has already expired or not
# - hazardous - will return matches with the flag hazardous only
# - oil - will return matches with the flag oil only
# - qty, qty_op - quantity filter (more info to come)
# - sort, order_by - sorting (more to come)
# - reservation - will provide an extra column containing the amount reserved of this match
# note: reservation flag turns off warehouse_* or bin_* information. both together don't make sense, since reserved info is stored separately
#
sub get_warehouse_report {
$main::lxdebug->enter_sub();

my $self = shift;
my %filter = @_;

my $myconfig = \%main::myconfig;
my $form = $main::form;

my $all_units = AM->retrieve_units($myconfig, $form);

# connect to database
my $dbh = $form->get_standard_dbh($myconfig);

# filters
my (@filter_ary, @filter_vars, @wh_bin_filter_ary, @wh_bin_filter_vars);

delete $form->{include_empty_bins} unless ($form->{l_warehouse} || $form->{l_bin});

if ($filter{warehouse_id}) {
push @wh_bin_filter_ary, "w.id = ?";
push @wh_bin_filter_vars, $filter{warehouse_id};
}

if ($filter{bin_id}) {
push @wh_bin_filter_ary, "b.id = ?";
push @wh_bin_filter_vars, $filter{bin_id};
}

push @filter_ary, @wh_bin_filter_ary;
push @filter_vars, @wh_bin_filter_vars;

if ($filter{partnumber}) {
push @filter_ary, "p.partnumber ILIKE ?";
push @filter_vars, like($filter{partnumber});
}

if ($filter{classification_id}) {
push @filter_ary, "p.classification_id = ?";
push @filter_vars, $filter{classification_id};
}

if ($filter{description}) {
push @filter_ary, "p.description ILIKE ?";
push @filter_vars, like($filter{description});
}

if ($filter{partsid}) {
push @filter_ary, "p.id = ?";
push @filter_vars, $filter{partsid};
}

if ($filter{partsgroup_id}) {
push @filter_ary, "p.partsgroup_id = ?";
push @filter_vars, $filter{partsgroup_id};
}

if ($filter{chargenumber}) {
push @filter_ary, "i.chargenumber ILIKE ?";
push @filter_vars, like($filter{chargenumber});
}

if (trim($form->{bestbefore})) {
push @filter_ary, "?::DATE = i.bestbefore::DATE";
push @filter_vars, trim($form->{bestbefore});
}

if ($filter{classification_id}) {
push @filter_ary, "p.classification_id = ?";
push @filter_vars, $filter{classification_id};
}

if ($filter{ean}) {
push @filter_ary, "p.ean ILIKE ?";
push @filter_vars, like($filter{ean});
}

if (trim($filter{date})) {
push @filter_ary, "i.shippingdate <= ?";
push @filter_vars, trim($filter{date});
}
if (!$filter{include_invalid_warehouses}){
push @filter_ary, "NOT (w.invalid)";
}

# prepare qty comparison for later filtering
my ($f_qty_op, $f_qty, $f_qty_base_unit);

if ($filter{qty_op} && defined $filter{qty} && $filter{qty_unit} && $all_units->{$filter{qty_unit}}) {
$f_qty_op = $filter{qty_op};
$f_qty = $filter{qty} * $all_units->{$filter{qty_unit}}->{factor};
$f_qty_base_unit = $all_units->{$filter{qty_unit}}->{base_unit};
}

map { $_ = "(${_})"; } @filter_ary;

# if of a property number or description is requested,
# automatically check the matching id too.
map { $form->{"l_${_}id"} = "Y" if ($form->{"l_${_}"} || $form->{"l_${_}number"}); } qw(warehouse bin);

# make order, search in $filter and $form
my $sort_col = $form->{sort};
my $sort_order = $form->{order};

$sort_col = $filter{sort} unless $sort_col;
# falls $sort_col gar nicht in dem Bericht aufgenommen werden soll,
# führt ein entsprechenes order by $sort_col zu einem SQL-Fehler
# entsprechend parts_id als default lassen, wenn $sort_col UND l_$sort_col
# vorhanden sind (bpsw. l_partnumber = 'Y', für in Bericht aufnehmen).
# S.a. Bug 1597 jb 12.5.2011
$sort_col = "parts_id" unless ($sort_col && $form->{"l_$sort_col"});
$sort_order = $filter{order} unless $sort_order;
$sort_col =~ s/ASC|DESC//; # kill stuff left in from previous queries
my $orderby = $sort_col;
my $sort_spec = "${sort_col} " . ($sort_order ? " DESC" : " ASC");

my $where_clause = join " AND ", ("1=1", @filter_ary);

my %select_tokens = (
"parts_id" => "i.parts_id",
"qty" => "SUM(i.qty)",
"warehouseid" => "i.warehouse_id",
"partnumber" => "p.partnumber",
"partdescription" => "p.description",
"classification_id" => "p.classification_id",
"part_type" => "p.part_type",
"bin" => "b.description",
"binid" => "b.id",
"chargenumber" => "i.chargenumber",
"bestbefore" => "i.bestbefore",
"ean" => "p.ean",
"chargeid" => "c.id",
"warehouse" => "w.description",
"partunit" => "p.unit",
"stock_value" => ($form->{stock_value_basis} // '') eq 'list_price' ? "p.listprice / COALESCE(pfac.factor, 1)" : "p.lastcost / COALESCE(pfac.factor, 1)",
"purchase_price" => "p.lastcost",
"list_price" => "p.listprice",
"price_factor" => ($form->{l_purchase_price} || $form->{l_list_price}) ? "pfac.description" : undef,
);
$form->{l_classification_id} = 'Y';
$form->{l_part_type} = 'Y';
$form->{l_price_factor} = 'Y' if $form->{l_purchase_price} || $form->{l_list_price};

my $select_clause = join ', ', map { +/^l_/; "$select_tokens{$'} AS $'" }
( grep( { !/qty/ and !/^l_cvar/ and /^l_/ and $form->{$_} eq 'Y' } keys %$form),
qw(l_parts_id l_qty l_partunit) );

my $group_clause = join ", ", map { +/^l_/; "$'" }
( grep( { !/qty/ and !/^l_cvar/ and /^l_/ and $form->{$_} eq 'Y' } keys %$form),
qw(l_parts_id l_partunit) );

my @join_values = ();
my %join_tokens = (
"stock_value" => "LEFT JOIN price_factors pfac ON (p.price_factor_id = pfac.id)",
);
$join_tokens{price_factor} = "LEFT JOIN price_factors pfac ON (p.price_factor_id = pfac.id)" if !$form->{l_stock_value};

my $joins = join ' ', grep { $_ } map { +/^l_/; $join_tokens{"$'"} }
( grep( { !/qty/ and !/^l_cvar/ and /^l_/ and $form->{$_} eq 'Y' } keys %$form),
qw(l_parts_id l_qty l_partunit) );

# add cvar for sorting
if (($form->{sort} // '') =~ /^cvar_/) {
my $sort_name = $form->{sort};
my $cvar_name = $sort_name;
$cvar_name =~ s/^cvar_//;
my $cvar_configs = CVar->get_configs('module' => 'IC');
my @allowed_cvar_names =
map {$_->{name}}
grep {$_->{type} =~ m/text|textfield|htmlfield/}
@$cvar_configs;
unless (any {$sort_name eq 'cvar_' . $_} @allowed_cvar_names) {
die "unsupported sort on cvar field";
}

$select_clause .= ", cvar_fields.$sort_name";
$group_clause .= ", cvar_fields.$sort_name";
$joins .= qq|
LEFT JOIN (
SELECT text_value as $sort_name, trans_id
FROM custom_variable_configs cvar_cfg
LEFT JOIN custom_variables cvar
ON (cvar_cfg.module = 'IC' AND cvar_cfg.name = ?
AND cvar_cfg.id = cvar.config_id)
) cvar_fields ON (cvar_fields.trans_id = p.id)
|;
push @join_values, $cvar_name
}
@filter_vars = (@join_values, @filter_vars);

my ($cvar_where, @cvar_values) = CVar->build_filter_query(
module => 'IC',
trans_id_field => 'p.id',
filter => $form,
sub_module => undef,
);

if ($cvar_where) {
$where_clause .= qq| AND ($cvar_where)|;
push @filter_vars, @cvar_values;
}

my $query =
qq|SELECT * FROM ( SELECT $select_clause
FROM inventory i
LEFT JOIN parts p ON i.parts_id = p.id
LEFT JOIN bin b ON i.bin_id = b.id
LEFT JOIN warehouse w ON i.warehouse_id = w.id
$joins
WHERE $where_clause
GROUP BY $group_clause
ORDER BY $sort_spec ) AS lines WHERE qty<>0|;

if ($filter{limit}) {
$query .= " LIMIT ?";
push @filter_vars,$filter{limit};
}
if ($filter{offset}) {
$query .= " OFFSET ?";
push @filter_vars, $filter{offset};
}
my $sth = prepare_execute_query($form, $dbh, $query, @filter_vars );

my (%non_empty_bins, @all_fields, @contents);

while (my $ref = $sth->fetchrow_hashref("NAME_lc")) {
$ref->{qty} *= 1;
my $qty = $ref->{qty};

next unless ($qty != 0);

if ($f_qty_op) {
my $part_unit = $all_units->{$ref->{partunit}};
next if (!$part_unit || ($part_unit->{base_unit} ne $f_qty_base_unit));
$qty *= $part_unit->{factor};
next if (('=' eq $f_qty_op) && ($qty != $f_qty));
next if (('>=' eq $f_qty_op) && ($qty < $f_qty));
next if (('<=' eq $f_qty_op) && ($qty > $f_qty));
}

if ($form->{include_empty_bins}) {
$non_empty_bins{$ref->{binid}} = 1;
@all_fields = keys %{ $ref } unless (@all_fields);
}

$ref->{stock_value} = ($ref->{stock_value} || 0) * $ref->{qty};

push @contents, $ref;
}

$sth->finish();

if ($form->{include_empty_bins}) {
$query =
qq|SELECT
w.id AS warehouseid, w.description AS warehouse,
b.id AS binid, b.description AS bin
FROM bin b
LEFT JOIN warehouse w ON (b.warehouse_id = w.id)|;

@filter_ary = @wh_bin_filter_ary;
@filter_vars = @wh_bin_filter_vars;

my @non_empty_bin_ids = keys %non_empty_bins;
if (@non_empty_bin_ids) {
push @filter_ary, qq|NOT b.id IN (| . join(', ', map { '?' } @non_empty_bin_ids) . qq|)|;
push @filter_vars, @non_empty_bin_ids;
}

$query .= qq| WHERE | . join(' AND ', map { "($_)" } @filter_ary) if (@filter_ary);

$sth = prepare_execute_query($form, $dbh, $query, @filter_vars);

while (my $ref = $sth->fetchrow_hashref()) {
map { $ref->{$_} ||= "" } @all_fields;
push @contents, $ref;
}
$sth->finish();

if (grep { $orderby eq $_ } qw(bin warehouse)) {
@contents = sort { ($a->{$orderby} cmp $b->{$orderby}) * (($form->{order}) ? 1 : -1) } @contents;
}
}

$main::lxdebug->leave_sub();

return @contents;
}

sub convert_qty_op {
$main::lxdebug->enter_sub();

my ($self, $qty_op) = @_;

if (!$qty_op || ($qty_op eq "dontcare")) {
$main::lxdebug->leave_sub();
return undef;
}

if ($qty_op eq "atleast") {
$qty_op = '>=';
} elsif ($qty_op eq "atmost") {
$qty_op = '<=';
} else {
$qty_op = '=';
}

$main::lxdebug->leave_sub();

return $qty_op;
}

sub retrieve_transfer_types {
$main::lxdebug->enter_sub();

my $self = shift;
my $direction = shift;

my $myconfig = \%main::myconfig;
my $form = $main::form;

my $dbh = $form->get_standard_dbh($myconfig);

my $types = selectall_hashref_query($form, $dbh, qq|SELECT * FROM transfer_type WHERE direction = ? ORDER BY sortkey|, $direction);

$main::lxdebug->leave_sub();

return $types;
}

sub get_basic_bin_info {
$main::lxdebug->enter_sub();

my $self = shift;
my %params = @_;

Common::check_params(\%params, qw(id));

my $myconfig = \%main::myconfig;
my $form = $main::form;

my $dbh = $params{dbh} || $form->get_standard_dbh();

my @ids = 'ARRAY' eq ref $params{id} ? @{ $params{id} } : ($params{id});

my $query =
qq|SELECT b.id AS bin_id, b.description AS bin_description,
w.id AS warehouse_id, w.description AS warehouse_description
FROM bin b
LEFT JOIN warehouse w ON (b.warehouse_id = w.id)
WHERE b.id IN (| . join(', ', ('?') x scalar(@ids)) . qq|)|;

my $result = selectall_hashref_query($form, $dbh, $query, map { conv_i($_) } @ids);

if ('' eq ref $params{id}) {
$result = $result->[0] || { };
$main::lxdebug->leave_sub();

return $result;
}

$main::lxdebug->leave_sub();

return map { $_->{bin_id} => $_ } @{ $result };
}

sub get_basic_warehouse_info {
$main::lxdebug->enter_sub();

my $self = shift;
my %params = @_;

Common::check_params(\%params, qw(id));

my $myconfig = \%main::myconfig;
my $form = $main::form;

my $dbh = $params{dbh} || $form->get_standard_dbh();

my @ids = 'ARRAY' eq ref $params{id} ? @{ $params{id} } : ($params{id});

my $query =
qq|SELECT w.id AS warehouse_id, w.description AS warehouse_description
FROM warehouse w
WHERE w.id IN (| . join(', ', ('?') x scalar(@ids)) . qq|)|;

my $result = selectall_hashref_query($form, $dbh, $query, map { conv_i($_) } @ids);

if ('' eq ref $params{id}) {
$result = $result->[0] || { };
$main::lxdebug->leave_sub();

return $result;
}

$main::lxdebug->leave_sub();

return map { $_->{warehouse_id} => $_ } @{ $result };
}
#
# Eingabe: Teilenummer, Lagernummer (warehouse)
# Ausgabe: Die maximale Anzahl der Teile in diesem Lager
#
sub get_max_qty_parts {
$main::lxdebug->enter_sub();

my $self = shift;
my %params = @_;

Common::check_params(\%params, qw(parts_id warehouse_id)); #die brauchen wir

my $myconfig = \%main::myconfig;
my $form = $main::form;

my $dbh = $params{dbh} || $form->get_standard_dbh();

my $query = qq| SELECT SUM(qty), bin_id, chargenumber, bestbefore FROM inventory where parts_id = ? AND warehouse_id = ? GROUP BY bin_id, chargenumber, bestbefore|;
my $sth_QTY = prepare_execute_query($form, $dbh, $query, ,$params{parts_id}, $params{warehouse_id}); #info: aufruf an DBUtils.pm


my $max_qty_parts = 0; #Initialisierung mit 0
while (my $ref = $sth_QTY->fetchrow_hashref()) { # wir laufen über alle Haltbarkeiten, chargen und Lagerorte (s.a. SQL-Query oben)
$max_qty_parts += $ref->{sum};
}

$main::lxdebug->leave_sub();

return $max_qty_parts;
}

#
# Eingabe: Teilenummer, Lagernummer (warehouse)
# Ausgabe: Die Beschreibung der Ware bzw. Erzeugnis
#
sub get_part_description {
$main::lxdebug->enter_sub();

my $self = shift;
my %params = @_;

Common::check_params(\%params, qw(parts_id)); #die brauchen wir

my $myconfig = \%main::myconfig;
my $form = $main::form;

my $dbh = $params{dbh} || $form->get_standard_dbh();

my $query = qq| SELECT partnumber, description FROM parts where id = ? |;

my $sth = prepare_execute_query($form, $dbh, $query, ,$params{parts_id}); #info: aufruf zu DBUtils.pm

my $ref = $sth->fetchrow_hashref();
my $part_description = $ref->{partnumber} . " " . $ref->{description};

$main::lxdebug->leave_sub();

return $part_description;
}
#
# Eingabe: Teilenummer, Lagerplatz_Id (bin_id)
# Ausgabe: Die maximale Anzahl der Teile in diesem Lagerplatz
# Bzw. Fehler, falls Chargen oder bestbefore
# bei eingelagerten Teilen definiert sind.
#
sub get_max_qty_parts_bin {
$main::lxdebug->enter_sub();

my $self = shift;
my %params = @_;

Common::check_params(\%params, qw(parts_id bin_id)); #die brauchen wir

my $myconfig = \%main::myconfig;
my $form = $main::form;

my $dbh = $params{dbh} || $form->get_standard_dbh();

my $query = qq| SELECT SUM(qty), chargenumber, bestbefore FROM inventory where parts_id = ?
AND bin_id = ? GROUP BY chargenumber, bestbefore|;

my $sth_QTY = prepare_execute_query($form, $dbh, $query, ,$params{parts_id}, $params{bin_id}); #info: aufruf an DBUtils.pm

my $max_qty_parts = 0; #Initialisierung mit 0
# falls derselbe artikel mehrmals eingelagert ist
# chargennummer, muss entsprechend händisch agiert werden
my $i = 0;
my $error;
while (my $ref = $sth_QTY->fetchrow_hashref()) { # wir laufen über alle Haltbarkeiten und Chargen(s.a. SQL-Query oben)
$max_qty_parts += $ref->{sum};
$i++;
if (($ref->{chargenumber} || $ref->{bestbefore}) && $ref->{sum} != 0){
$error = 1;
}
}
$main::lxdebug->leave_sub();

return ($max_qty_parts, $error);
}

sub get_wh_and_bin_for_charge {
$main::lxdebug->enter_sub();

my $self = shift;
my %params = @_;
my %bin_qty;

croak t8('Need charge number!') unless $params{chargenumber};

my $inv_items = SL::DB::Manager::Inventory->get_all(where => [chargenumber => $params{chargenumber} ]);

croak t8("Invalid charge number: #1", $params{chargenumber}) unless (ref @{$inv_items}[0] eq 'SL::DB::Inventory');
# add all qty for one bin and add wh_id
($bin_qty{$_->bin_id}{qty}, $bin_qty{$_->bin_id}{wh}) = ($bin_qty{$_->bin_id}{qty} + $_->qty, $_->warehouse_id) for @{ $inv_items };

while (my ($bin, $value) = each (%bin_qty)) {
if ($value->{qty} > 0) {
$main::lxdebug->leave_sub();
return ($value->{qty}, $value->{wh}, $bin, $params{chargenumber});
}
}

$main::lxdebug->leave_sub();
return undef;
}
1;

__END__

=head1 NAME

SL::WH - Warehouse backend

=head1 SYNOPSIS

use SL::WH;
WH->transfer(\%params);

=head1 DESCRIPTION

Backend for kivitendo warehousing functions.

=head1 FUNCTIONS

=head2 transfer \%PARAMS, [ \%PARAMS, ... ]

This is the main function to manipulate warehouse contents. A typical transfer
is called like this:

WH->transfer->({
parts_id => 6342,
qty => 12.45,
transfer_type => 'transfer',
src_warehouse_id => 12,
src_bin_id => 23,
dst_warehouse_id => 25,
dst_bin_id => 167,
});

It will generate an entry in inventory representing the transfer. Note that
parts_id, qty, and transfer_type are mandatory. Depending on the transfer_type
a destination or a src is mandatory.

transfer accepts more than one transaction parameter, each being a hash ref. If
more than one is supplied, it is guaranteed, that all are processed in the same
transaction.

It is possible to record stocktakings within this transaction as well.
This is useful if the transfer is the result of stocktaking (see also
C<SL::Controller::Inventory>). To do so the parameters C<record_stocktaking>,
C<stocktaking_qty> and C<stocktaking_cutoff_date> hava to be given.
If stocktaking should be saved, then the transfer quantity can be zero. In this
case no entry in inventory will be made, but only the stocktaking entry.

Here is a full list of parameters. All "_id" parameters except oe and
orderitems can be called without id with RDB objects as well.

=over 4

=item parts_id

The id of the article transferred. Does not check if the article is a service.
Mandatory.

=item qty

Quantity of the transaction. Mandatory.

=item unit

Unit of the transaction. Optional.

=item transfer_type

=item transfer_type_id

The type of transaction. The first version is a string describing the
transaction (the types 'transfer' 'in' 'out' and a few others are present on
every system), the id is the hard id of a transfer_type from the database.

Depending of the direction of the transfer_type, source and/or destination must
be specified.

One of transfer_type or transfer_type_id is mandatory.

=item src_warehouse_id

=item src_bin_id

Warehouse and bin from which to transfer. Mandatory in transfer and out
directions. Ignored in in directions.

=item dst_warehouse_id

=item dst_bin_id

Warehouse and bin to which to transfer. Mandatory in transfer and in
directions. Ignored in out directions.

=item chargenumber

If given, the transfer will transfer only articles with this chargenumber.
Optional.

=item orderitem_id

Reference to an orderitem for which this transfer happened. Optional

=item oe_id

Reference to an order for which this transfer happened. Optional

=item comment

An optional comment.

=item best_before

An expiration date. Note that this is not by default used by C<warehouse_report>.

=item record_stocktaking

A boolean flag to indicate that a stocktaking entry should be saved.

=item stocktaking_qty

The quantity for the stocktaking entry.

=item stocktaking_cutoff_date

The cutoff date for the stocktaking entry.

=back

=head2 create_assembly \%PARAMS, [ \%PARAMS, ... ]

Creates an assembly if all defined items are available.

Assembly item(s) will be stocked out and the assembly will be stocked in,
taking into account the qty and units which can be defined for each
assembly item separately.

The calling params originate from C<transfer> but only parts_id with the
attribute assembly are processed.

The typical params would be:

my %TRANSFER = (
'login' => $::myconfig{login},
'dst_warehouse_id' => $form->{warehouse_id},
'dst_bin_id' => $form->{bin_id},
'chargenumber' => $form->{chargenumber},
'bestbefore' => $form->{bestbefore},
'assembly_id' => $form->{parts_id},
'qty' => $form->{qty},
'comment' => $form->{comment}
);


=head2 get_wh_and_bin_for_charge C<$params{chargenumber}>

Gets the current qty from the inventory entries with the mandatory chargenumber: C<$params{chargenumber}>.
Croaks if the chargenumber is missing or no entry currently exists.
If there is one bin and warehouse with a positive qty, this fields are returned:
C<qty> C<warehouse_id>, C<bin_id>, C<chargenumber>.
Otherwise returns undef.


=head3 Prerequisites

All of these prerequisites have to be trueish, otherwise the function will exit
unsuccessfully with a return value of undef.

=over 4

=item Mandantory params

assembly_id, qty, login, dst_warehouse_id and dst_bin_id are mandatory.

=item Subset named 'Assembly' of data set 'Part'

assembly_id has to be an id in the table parts with the valid subset assembly.

=item Assembly is composed of assembly item(s)

There has to be at least one data set in the table assembly referenced to this assembly_id.

=item Assembly can be disassembled

Assemblies are like cakes. You cannot disassemble it. NEVER.
But if your assembly is a mechanical cake you may unscrew it.
Assemblies are created in one transaction therefore you can
safely rely on the trans_id in inventory to disassemble the
created assemblies (see action disassemble_assembly in wh.pl).

=item The assembly item(s) have to be in the same warehouse

inventory.warehouse_id equals dst_warehouse_id (client configurable).

=item The assembly item(s) have to be in stock with the qty needed

I can only make a cake by receipt if I have ALL ingredients and
in the needed stock amount.
The qty of stocked in assembly item(s) has to fit into the
number of the qty of the assemblies, which are going to be created (client configurable).

=item assembly item(s) with the parts set 'service' are ignored

The subset 'Services' of part will not transferred for assembly item(s).

=back

Client configurable prerequisites can be changed with different
prerequisites as described in client_config (s.a. next chapter).


=head2 default creation of assembly

The valid state of the assembly item(s) used for the assembly process are
'out' for the general direction and 'used' as the specific reason.
The valid state of the assembly is 'in' for the direction and 'assembled'
as the specific reason.

The method is transaction safe, in case of errors not a single entry will be made
in inventory.


=head1 BUGS

None yet.

=head1 AUTHOR

=cut

1;
(79-79/85)