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package SL::DB::Order;

use utf8;
use strict;

use Carp;
use DateTime;
use List::Util qw(max);
use List::MoreUtils qw(any);

use SL::DB::MetaSetup::Order;
use SL::DB::Manager::Order;
use SL::DB::Helper::AttrHTML;
use SL::DB::Helper::AttrSorted;
use SL::DB::Helper::FlattenToForm;
use SL::DB::Helper::LinkedRecords;
use SL::DB::Helper::PriceTaxCalculator;
use SL::DB::Helper::PriceUpdater;
use SL::DB::Helper::TransNumberGenerator;
use SL::RecordLinks;
use Rose::DB::Object::Helpers qw(as_tree);

__PACKAGE__->meta->add_relationship(
orderitems => {
type => 'one to many',
class => 'SL::DB::OrderItem',
column_map => { id => 'trans_id' },
manager_args => {
with_objects => [ 'part' ]
}
},
periodic_invoices_config => {
type => 'one to one',
class => 'SL::DB::PeriodicInvoicesConfig',
column_map => { id => 'oe_id' },
},
custom_shipto => {
type => 'one to one',
class => 'SL::DB::Shipto',
column_map => { id => 'trans_id' },
query_args => [ module => 'OE' ],
},
);

__PACKAGE__->meta->initialize;

__PACKAGE__->attr_html('notes');
__PACKAGE__->attr_sorted('items');

__PACKAGE__->before_save('_before_save_set_ord_quo_number');

# hooks

sub _before_save_set_ord_quo_number {
my ($self) = @_;

# ordnumber is 'NOT NULL'. Therefore make sure it's always set to at
# least an empty string, even if we're saving a quotation.
$self->ordnumber('') if !$self->ordnumber;

my $field = $self->quotation ? 'quonumber' : 'ordnumber';
$self->create_trans_number if !$self->$field;

return 1;
}

# methods

sub items { goto &orderitems; }
sub add_items { goto &add_orderitems; }
sub record_number { goto &number; }

sub type {
my $self = shift;

return 'sales_order' if $self->customer_id && ! $self->quotation;
return 'purchase_order' if $self->vendor_id && ! $self->quotation;
return 'sales_quotation' if $self->customer_id && $self->quotation;
return 'request_quotation' if $self->vendor_id && $self->quotation;

return;
}

sub is_type {
return shift->type eq shift;
}

sub deliverydate {
# oe doesn't have deliverydate, but PTC checks for deliverydate or transdate to determine tax
# oe can't deal with deviating tax rates, but at least make sure PTC doesn't barf
return shift->transdate;
}

sub displayable_type {
my $type = shift->type;

return $::locale->text('Sales quotation') if $type eq 'sales_quotation';
return $::locale->text('Request quotation') if $type eq 'request_quotation';
return $::locale->text('Sales Order') if $type eq 'sales_order';
return $::locale->text('Purchase Order') if $type eq 'purchase_order';

die 'invalid type';
}

sub displayable_name {
join ' ', grep $_, map $_[0]->$_, qw(displayable_type record_number);
};

sub is_sales {
croak 'not an accessor' if @_ > 1;
return !!shift->customer_id;
}

sub invoices {
my $self = shift;
my %params = @_;

if ($self->quotation) {
return [];
} else {
require SL::DB::Invoice;
return SL::DB::Manager::Invoice->get_all(
query => [
ordnumber => $self->ordnumber,
@{ $params{query} || [] },
]
);
}
}

sub displayable_state {
my ($self) = @_;

return $self->closed ? $::locale->text('closed') : $::locale->text('open');
}

sub abschlag_invoices {
return shift()->invoices(query => [ abschlag => 1 ]);
}

sub end_invoice {
return shift()->invoices(query => [ abschlag => 0 ]);
}

sub convert_to_invoice {
my ($self, %params) = @_;

croak("Conversion to invoices is only supported for sales records") unless $self->customer_id;

my $invoice;
if (!$self->db->with_transaction(sub {
require SL::DB::Invoice;
$invoice = SL::DB::Invoice->new_from($self)->post(%params) || die;
$self->link_to_record($invoice);
$self->update_attributes(closed => 1);
1;
})) {
return undef;
}

return $invoice;
}

sub convert_to_delivery_order {
my ($self, @args) = @_;

my $delivery_order;
if (!$self->db->with_transaction(sub {
require SL::DB::DeliveryOrder;
$delivery_order = SL::DB::DeliveryOrder->new_from($self, @args);
$delivery_order->save;
$self->link_to_record($delivery_order);
# TODO extend link_to_record for items, otherwise long-term no d.r.y.
foreach my $item (@{ $delivery_order->items }) {
foreach (qw(orderitems)) { # expand if needed (delivery_order_items)
if ($item->{"converted_from_${_}_id"}) {
die unless $item->{id};
RecordLinks->create_links('dbh' => $self->db->dbh,
'mode' => 'ids',
'from_table' => $_,
'from_ids' => $item->{"converted_from_${_}_id"},
'to_table' => 'delivery_order_items',
'to_id' => $item->{id},
) || die;
delete $item->{"converted_from_${_}_id"};
}
}
}

$self->update_attributes(delivered => 1);
1;
})) {
return undef;
}

return $delivery_order;
}

sub _clone_orderitem_cvar {
my ($cvar) = @_;

my $cloned = $_->clone_and_reset;
$cloned->sub_module('orderitems');

return $cloned;
}

sub new_from {
my ($class, $source, %params) = @_;

croak("Unsupported source object type '" . ref($source) . "'") unless ref($source) eq 'SL::DB::Order';
croak("A destination type must be given as parameter") unless $params{destination_type};

my $destination_type = delete $params{destination_type};

my @from_tos = (
{ from => 'sales_quotation', to => 'sales_order', abbr => 'sqso' },
{ from => 'request_quotation', to => 'purchase_order', abbr => 'rqpo' },
{ from => 'sales_quotation', to => 'sales_quotation', abbr => 'sqsq' },
{ from => 'sales_order', to => 'sales_order', abbr => 'soso' },
{ from => 'request_quotation', to => 'request_quotation', abbr => 'rqrq' },
{ from => 'purchase_order', to => 'purchase_order', abbr => 'popo' },
{ from => 'sales_order', to => 'purchase_order', abbr => 'sopo' },
{ from => 'purchase_order', to => 'sales_order', abbr => 'poso' },
);
my $from_to = (grep { $_->{from} eq $source->type && $_->{to} eq $destination_type} @from_tos)[0];
croak("Cannot convert from '" . $source->type . "' to '" . $destination_type . "'") if !$from_to;

my $is_abbr_any = sub {
# foreach my $abbr (@_) {
# croak "no such abbreviation: '$abbr'" if !grep { $_->{abbr} eq $abbr } @from_tos;
# }
any { $from_to->{abbr} eq $_ } @_;
};

my ($item_parent_id_column, $item_parent_column);

if (ref($source) eq 'SL::DB::Order') {
$item_parent_id_column = 'trans_id';
$item_parent_column = 'order';
}

my %args = ( map({ ( $_ => $source->$_ ) } qw(amount cp_id currency_id cusordnumber customer_id delivery_customer_id delivery_term_id delivery_vendor_id
department_id employee_id globalproject_id intnotes marge_percent marge_total language_id netamount notes
ordnumber payment_id quonumber reqdate salesman_id shippingpoint shipvia taxincluded taxzone_id
transaction_description vendor_id
)),
quotation => !!($destination_type =~ m{quotation$}),
closed => 0,
delivered => 0,
transdate => DateTime->today_local,
);

if ( $is_abbr_any->(qw(sopo poso)) ) {
$args{ordnumber} = undef;
$args{reqdate} = DateTime->today_local->next_workday();
$args{employee} = SL::DB::Manager::Employee->current;
}
if ( $is_abbr_any->(qw(sopo)) ) {
$args{customer_id} = undef;
$args{salesman_id} = undef;
$args{payment_id} = undef;
$args{delivery_term_id} = undef;
}
if ( $is_abbr_any->(qw(poso)) ) {
$args{vendor_id} = undef;
}
if ( $is_abbr_any->(qw(soso)) ) {
$args{periodic_invoices_config} = $source->periodic_invoices_config->clone_and_reset if $source->periodic_invoices_config;
}

# Custom shipto addresses (the ones specific to the sales/purchase
# record and not to the customer/vendor) are only linked from
# shipto → order. Meaning order.shipto_id
# will not be filled in that case.
if (!$source->shipto_id && $source->id) {
$args{custom_shipto} = $source->custom_shipto->clone($class) if $source->can('custom_shipto') && $source->custom_shipto;

} else {
$args{shipto_id} = $source->shipto_id;
}

my $order = $class->new(%args);
$order->assign_attributes(%{ $params{attributes} }) if $params{attributes};
my $items = delete($params{items}) || $source->items_sorted;

my %item_parents;

my @items = map {
my $source_item = $_;
my $source_item_id = $_->$item_parent_id_column;
my @custom_variables = map { _clone_orderitem_cvar($_) } @{ $source_item->custom_variables };

$item_parents{$source_item_id} ||= $source_item->$item_parent_column;
my $item_parent = $item_parents{$source_item_id};

my $current_oe_item = SL::DB::OrderItem->new(map({ ( $_ => $source_item->$_ ) }
qw(active_discount_source active_price_source base_qty cusordnumber
description discount lastcost longdescription
marge_percent marge_price_factor marge_total
ordnumber parts_id price_factor price_factor_id pricegroup_id
project_id qty reqdate sellprice serialnumber ship subtotal transdate unit
)),
custom_variables => \@custom_variables,
);
if ( $is_abbr_any->(qw(sopo)) ) {
$current_oe_item->sellprice($source_item->lastcost);
$current_oe_item->discount(0);
}
if ( $is_abbr_any->(qw(poso)) ) {
$current_oe_item->lastcost($source_item->sellprice);
}
$current_oe_item->{"converted_from_orderitems_id"} = $_->{id} if ref($item_parent) eq 'SL::DB::Order';
$current_oe_item;
} @{ $items };

@items = grep { $params{item_filter}->($_) } @items if $params{item_filter};
@items = grep { $_->qty * 1 } @items if $params{skip_items_zero_qty};
@items = grep { $_->qty >=0 } @items if $params{skip_items_negative_qty};

$order->items(\@items);

return $order;
}

sub new_from_multi {
my ($class, $sources, %params) = @_;

croak("Unsupported object type in sources") if any { ref($_) !~ m{SL::DB::Order} } @$sources;
croak("Cannot create order for purchase records") if any { !$_->is_sales } @$sources;
croak("Cannot create order from source records of different customers") if any { $_->customer_id != $sources->[0]->customer_id } @$sources;

# bb: todo: check shipto: is it enough to check the ids or do we have to compare the entries?
if (delete $params{check_same_shipto}) {
die "check same shipto address is not implemented yet";
die "Source records do not have the same shipto" if 1;
}

# sort sources
if (defined $params{sort_sources_by}) {
my $sort_by = delete $params{sort_sources_by};
if ($sources->[0]->can($sort_by)) {
$sources = [ sort { $a->$sort_by cmp $b->$sort_by } @$sources ];
} else {
die "Cannot sort source records by $sort_by";
}
}

# set this entries to undef that yield different information
my %attributes;
foreach my $attr (qw(ordnumber transdate reqdate taxincluded shippingpoint
shipvia notes closed delivered reqdate quonumber
cusordnumber proforma transaction_description
order_probability expected_billing_date)) {
$attributes{$attr} = undef if any { ($sources->[0]->$attr//'') ne ($_->$attr//'') } @$sources;
}
foreach my $attr (qw(cp_id currency_id employee_id salesman_id department_id
delivery_customer_id delivery_vendor_id shipto_id
globalproject_id)) {
$attributes{$attr} = undef if any { ($sources->[0]->$attr||0) != ($_->$attr||0) } @$sources;
}

# set this entries from customer that yield different information
foreach my $attr (qw(language_id taxzone_id payment_id delivery_term_id)) {
$attributes{$attr} = $sources->[0]->customervendor->$attr if any { ($sources->[0]->$attr||0) != ($_->$attr||0) } @$sources;
}
$attributes{intnotes} = $sources->[0]->customervendor->notes if any { ($sources->[0]->intnotes//'') ne ($_->intnotes//'') } @$sources;

# no periodic invoice config for new order
$attributes{periodic_invoices_config} = undef;

# copy global ordnumber, transdate, cusordnumber into item scope
# unless already present there
foreach my $attr (qw(ordnumber transdate cusordnumber)) {
foreach my $src (@$sources) {
foreach my $item (@{ $src->items_sorted }) {
$item->$attr($src->$attr) if !$item->$attr;
}
}
}

# collect items
my @items;
push @items, @{$_->items_sorted} for @$sources;
# make order from first source and all items
my $order = $class->new_from($sources->[0],
destination_type => 'sales_order',
attributes => \%attributes,
items => \@items,
%params);

return $order;
}

sub number {
my $self = shift;

return if !$self->type;

my %number_method = (
sales_order => 'ordnumber',
sales_quotation => 'quonumber',
purchase_order => 'ordnumber',
request_quotation => 'quonumber',
);

return $self->${ \ $number_method{$self->type} }(@_);
}

sub customervendor {
$_[0]->is_sales ? $_[0]->customer : $_[0]->vendor;
}

sub date {
goto &transdate;
}

sub digest {
my ($self) = @_;

sprintf "%s %s %s (%s)",
$self->number,
$self->customervendor->name,
$self->amount_as_number,
$self->date->to_kivitendo;
}

1;

__END__

=pod

=encoding utf8

=head1 NAME

SL::DB::Order - Order Datenbank Objekt.

=head1 FUNCTIONS

=head2 C<type>

Returns one of the following string types:

=over 4

=item sales_order

=item purchase_order

=item sales_quotation

=item request_quotation

=back

=head2 C<is_type TYPE>

Returns true if the order is of the given type.

=head2 C<convert_to_delivery_order %params>

Creates a new delivery order with C<$self> as the basis by calling
L<SL::DB::DeliveryOrder::new_from>. That delivery order is saved, and
C<$self> is linked to the new invoice via
L<SL::DB::RecordLink>. C<$self>'s C<delivered> attribute is set to
C<true>, and C<$self> is saved.

The arguments in C<%params> are passed to
L<SL::DB::DeliveryOrder::new_from>.

Returns C<undef> on failure. Otherwise the new delivery order will be
returned.

=head2 C<convert_to_invoice %params>

Creates a new invoice with C<$self> as the basis by calling
L<SL::DB::Invoice::new_from>. That invoice is posted, and C<$self> is
linked to the new invoice via L<SL::DB::RecordLink>. C<$self>'s
C<closed> attribute is set to C<true>, and C<$self> is saved.

The arguments in C<%params> are passed to L<SL::DB::Invoice::post>.

Returns the new invoice instance on success and C<undef> on
failure. The whole process is run inside a transaction. On failure
nothing is created or changed in the database.

At the moment only sales quotations and sales orders can be converted.

=head2 C<new_from $source, %params>

Creates a new C<SL::DB::Order> instance and copies as much
information from C<$source> as possible. At the moment only records with the
same destination type as the source type and sales orders from
sales quotations and purchase orders from requests for quotations can be
created.

The C<transdate> field will be set to the current date.

The conversion copies the order items as well.

Returns the new order instance. The object returned is not
saved.

C<%params> can include the following options
(C<destination_type> is mandatory):

=over 4

=item C<destination_type>

(mandatory)
The type of the newly created object. Can be C<sales_quotation>,
C<sales_order>, C<purchase_quotation> or C<purchase_order> for now.

=item C<items>

An optional array reference of RDBO instances for the items to use. If
missing then the method C<items_sorted> will be called on
C<$source>. This option can be used to override the sorting, to
exclude certain positions or to add additional ones.

=item C<skip_items_negative_qty>

If trueish then items with a negative quantity are skipped. Items with
a quantity of 0 are not affected by this option.

=item C<skip_items_zero_qty>

If trueish then items with a quantity of 0 are skipped.

=item C<item_filter>

An optional code reference that is called for each item with the item
as its sole parameter. Items for which the code reference returns a
falsish value will be skipped.

=item C<attributes>

An optional hash reference. If it exists then it is passed to C<new>
allowing the caller to set certain attributes for the new delivery
order.

=back

=head2 C<new_from_multi $sources, %params>

Creates a new C<SL::DB::Order> instance from multiple sources and copies as
much information from C<$sources> as possible.
At the moment only sales orders can be combined and they must be of the same
customer.

The new order is created from the first one using C<new_from> and the positions
of all orders are added to the new order. The orders can be sorted with the
parameter C<sort_sources_by>.

The orders attributes are kept if they contain the same information for all
source orders an will be set to empty if they contain different information.

Returns the new order instance. The object returned is not
saved.

C<params> other then C<sort_sources_by> are passed to C<new_from>.

=head1 BUGS

Nothing here yet.

=head1 AUTHOR

Sven Schöling <s.schoeling@linet-services.de>

=cut
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