From d73692451ea1eaa7de9ed4e8bd3160b1e88cd7e9 Mon Sep 17 00:00:00 2001
From: Moritz Bunkus <m.bunkus@linet-services.de>
Date: Wed, 29 Dec 2010 10:50:53 +0100
Subject: [PATCH] Eine Klasse zum Check und zur Erzeugung von eindeutigen
 Belegnummern

---
 SL/TransNumber.pm | 148 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 SL/TransNumber.pm

diff --git a/SL/TransNumber.pm b/SL/TransNumber.pm
new file mode 100644
index 000000000..14795e4f7
--- /dev/null
+++ b/SL/TransNumber.pm
@@ -0,0 +1,148 @@
+package SL::TransNumber;
+
+use strict;
+
+use parent qw(Rose::Object);
+
+use Carp;
+use List::MoreUtils qw(any none);
+use Readonly;
+use SL::DBUtils;
+
+use Rose::Object::MakeMethods::Generic
+(
+ scalar => [ qw(type id number save dbh dbh_provided) ],
+);
+
+# has 'type'         => ( is => 'rw', required => 1 );
+# has 'id'           => ( is => 'rw' );
+# has 'number'       => ( is => 'rw' );
+# has 'save'         => ( is => 'rw', default  => 1 );
+# has 'dbh'          => ( is => 'rw' );
+# has 'dbh_provided' => ( is => 'rw' );
+
+Readonly my @SUPPORTED_TYPES => qw(invoice credit_note customer vendor sales_delivery_order purchase_delivery_order sales_order purchase_order sales_quotation request_quotation);
+
+sub new {
+  my $class = shift;
+  my $self  = $class->SUPER::new(@_);
+
+  croak "Invalid type " . $self->type if none { $_ eq $self->type } @SUPPORTED_TYPES;
+
+  $self->dbh_provided($self->dbh);
+  $self->dbh($::form->get_standard_dbh) if !$self->dbh;
+  $self->save(1) unless defined $self->save;
+
+  return $self;
+}
+
+sub _get_filters {
+  my $self    = shift;
+
+  my $type    = $self->type;
+  my %filters = ( where => '' );
+
+  if (any { $_ eq $type } qw(invoice credit_note)) {
+    $filters{trans_number}  = "invnumber";
+    $filters{numberfield}   = $type eq 'credit_note' ? "cnnumber" : "invnumber";
+    $filters{table}         = "ar";
+
+  } elsif (any { $_ eq $type } qw(customer vendor)) {
+    $filters{trans_number}  = "${type}number";
+    $filters{numberfield}   = "${type}number";
+    $filters{table}         = $type;
+
+  } elsif ($type =~ /_delivery_order$/) {
+    $filters{trans_number}  = "donumber";
+    $filters{numberfield}   = $type eq 'sales_delivery_order' ? "sdonumber" : "pdonumber";
+    $filters{table}         = "delivery_orders";
+    $filters{where}         = $type =~ /^sales/ ? '(customer_id IS NOT NULL)' : '(vendor_id IS NOT NULL)';
+
+  } elsif ($type =~ /_order$/) {
+    $filters{trans_number}  = "ordnumber";
+    $filters{numberfield}   = $type eq 'sales_order' ? "sonumber" : "ponumber";
+    $filters{table}         = "oe";
+    $filters{where}         = 'NOT COALESCE(quotation, FALSE)';
+    $filters{where}        .= $type =~ /^sales/ ? ' AND (customer_id IS NOT NULL)' : ' AND (vendor_id IS NOT NULL)';
+
+  } else {
+    $filters{trans_number}  = "quonumber";
+    $filters{numberfield}   = $type eq 'sales_quotation' ? "sqnumber" : "rfqnumber";
+    $filters{table}         = "oe";
+    $filters{where}         = 'COALESCE(quotation, FALSE)';
+    $filters{where}        .= $type =~ /^sales/ ? ' AND (customer_id IS NOT NULL)' : ' AND (vendor_id IS NOT NULL)';
+  }
+
+  return %filters;
+}
+
+sub is_unique {
+  my $self = shift;
+
+  return undef if !$self->number;
+
+  my %filters = $self->_get_filters();
+
+  my @where;
+  my @values = ($self->number);
+
+  push @where, $filters{where} if $filters{where};
+
+  if ($self->id) {
+    push @where,  qq|id <> ?|;
+    push @values, conv_i($self->id);
+  }
+
+  my $where_str = @where ? join(' AND ', map { "($_)" } @where) : '';
+  my $query     = <<SQL;
+    SELECT $filters{trans_number}
+    FROM $filters{table}
+    WHERE ($filters{trans_number} = ?)
+      $where_str
+    LIMIT 1
+SQL
+  my ($existing_number) = selectfirst_array_query($main::form, $self->dbh, $query, @values);
+
+  return $existing_number ? 0 : 1;
+}
+
+sub create_unique {
+  my $self    = shift;
+
+  my $form    = $main::form;
+  my %filters = $self->_get_filters();
+
+  do_query($form, $self->dbh, qq|LOCK TABLE defaults|);
+
+  my $where = $filters{where} ? ' WHERE ' . $filters{where} : '';
+  my $query = <<SQL;
+    SELECT DISTINCT $filters{trans_number}, 1 AS in_use
+    FROM $filters{table}
+    $where
+SQL
+
+  my %numbers_in_use = selectall_as_map($form, $self->dbh, $query, $filters{trans_number}, 'in_use');
+
+  my ($number)   = selectfirst_array_query($form, $self->dbh, qq|SELECT $filters{numberfield} FROM defaults|);
+  $number      ||= '';
+
+  do {
+    if ($number =~ m/\d+$/) {
+      my $new_number = substr($number, $-[0]) * 1 + 1;
+      my $len_diff   = length($number) - $-[0] - length($new_number);
+      $number        = substr($number, 0, $-[0]) . ($len_diff > 0 ? '0' x $len_diff : '') . $new_number;
+
+    } else {
+      $number = $number . '1';
+    }
+  } while ($numbers_in_use{$number});
+
+  if ($self->save) {
+    do_query($form, $self->dbh, qq|UPDATE defaults SET $filters{numberfield} = ?|, $number);
+    $self->dbh->commit if !$self->dbh_provided;
+  }
+
+  return $number;
+}
+
+1;
-- 
2.20.1