import sql-ledger 2.4.4
[freeside.git] / sql-ledger / sql-ledger / SL / IR.pm
diff --git a/sql-ledger/sql-ledger/SL/IR.pm b/sql-ledger/sql-ledger/SL/IR.pm
new file mode 100644 (file)
index 0000000..79a619b
--- /dev/null
@@ -0,0 +1,1243 @@
+#=====================================================================
+# SQL-Ledger Accounting
+# Copyright (C) 2000
+#
+#  Author: Dieter Simader
+#   Email: dsimader@sql-ledger.org
+#     Web: http://www.sql-ledger.org
+#
+#  Contributors: Jim Rawlings <jim@your-dba.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, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#======================================================================
+#
+# Inventory received module
+#
+#======================================================================
+
+package IR;
+
+
+sub post_invoice {
+  my ($self, $myconfig, $form) = @_;
+  
+  # connect to database, turn off autocommit
+  my $dbh = $form->dbconnect_noauto($myconfig);
+
+  my $query;
+  my $sth;
+  my $null;
+  my $project_id;
+  my $exchangerate = 0;
+  my $allocated;
+  my $taxrate;
+  my $taxamount;
+  my $taxdiff;
+  my $item;
+
+  if ($form->{id}) {
+
+    &reverse_invoice($dbh, $form);
+
+  } else {
+    my $uid = time;
+    $uid .= $form->{login};
+
+    $query = qq|INSERT INTO ap (invnumber, employee_id)
+                VALUES ('$uid', (SELECT id FROM employee
+                                WHERE login = '$form->{login}'))|;
+    $dbh->do($query) || $form->dberror($query);
+    
+    $query = qq|SELECT id FROM ap
+                WHERE invnumber = '$uid'|;
+    $sth = $dbh->prepare($query);
+    $sth->execute || $form->dberror($query);
+
+    ($form->{id}) = $sth->fetchrow_array;
+    $sth->finish;
+
+  }
+
+  my ($amount, $linetotal, $lastinventoryaccno, $lastexpenseaccno);
+  my ($netamount, $invoicediff, $expensediff) = (0, 0, 0);
+
+  if ($form->{currency} eq $form->{defaultcurrency}) {
+    $form->{exchangerate} = 1;
+  } else {
+    $exchangerate = $form->check_exchangerate($myconfig, $form->{currency}, $form->{transdate}, 'sell');
+  }
+  
+  $form->{exchangerate} = ($exchangerate) ? $exchangerate : $form->parse_amount($myconfig, $form->{exchangerate});
+
+  
+  for my $i (1 .. $form->{rowcount}) {
+    $form->{"qty_$i"} = $form->parse_amount($myconfig, $form->{"qty_$i"});
+    
+    if ($form->{"qty_$i"} != 0) {
+
+      # project
+      $project_id = 'NULL';
+      if ($form->{"projectnumber_$i"}) {
+       ($null, $project_id) = split /--/, $form->{"projectnumber_$i"};
+      }
+      # undo discount formatting
+      $form->{"discount_$i"} = $form->parse_amount($myconfig, $form->{"discount_$i"}) / 100;
+      
+      @taxaccounts = split / /, $form->{"taxaccounts_$i"};
+      $taxdiff = 0;
+      $allocated = 0;
+      $taxrate = 0;
+      
+      # keep entered selling price
+      my $fxsellprice = $form->parse_amount($myconfig, $form->{"sellprice_$i"});
+          
+      my ($dec) = ($fxsellprice =~ /\.(\d+)/);
+      $dec = length $dec;
+      my $decimalplaces = ($dec > 2) ? $dec : 2;
+      
+      # deduct discount
+      my $discount = $form->round_amount($fxsellprice * $form->{"discount_$i"}, $decimalplaces);
+      $form->{"sellprice_$i"} = $fxsellprice - $discount;
+      
+      map { $taxrate += $form->{"${_}_rate"} } @taxaccounts;
+
+      if ($form->{"inventory_accno_$i"}) {
+
+       $linetotal = $form->round_amount($form->{"sellprice_$i"} * $form->{"qty_$i"}, 2);
+       
+       if ($form->{taxincluded}) {
+         $taxamount = $linetotal * ($taxrate / (1 + $taxrate));
+         $form->{"sellprice_$i"} = $form->{"sellprice_$i"} * (1 / (1 + $taxrate));
+       } else {
+         $taxamount = $linetotal * $taxrate;
+       }
+
+       $netamount += $linetotal;
+
+       if (@taxaccounts && $form->round_amount($taxamount, 2) == 0) {
+         if ($form->{taxincluded}) {
+           foreach $item (@taxaccounts) {
+             $taxamount = $form->round_amount($linetotal * $form->{"${item}_rate"} / (1 + abs($form->{"${item}_rate"})), 2);
+             $taxdiff += $taxamount;
+             $form->{amount}{$form->{id}}{$item} -= $taxamount;
+           }
+           $form->{amount}{$form->{id}}{$taxaccounts[0]} += $taxdiff;
+         } else {
+           map { $form->{amount}{$form->{id}}{$_} -= $linetotal * $form->{"${_}_rate"} } @taxaccounts;
+         }
+       } else {
+           map { $form->{amount}{$form->{id}}{$_} -= $taxamount * $form->{"${_}_rate"} / $taxrate } @taxaccounts;
+       }
+       
+
+       # add purchase to inventory, this one is without the tax!
+       $amount = $form->{"sellprice_$i"} * $form->{"qty_$i"} * $form->{exchangerate};
+       $linetotal = $form->round_amount($form->{"sellprice_$i"} * $form->{"qty_$i"}, 2) * $form->{exchangerate};
+       $linetotal = $form->round_amount($linetotal, 2);
+
+        # this is the difference for the inventory
+       $invoicediff += ($amount - $linetotal);
+       
+       $form->{amount}{$form->{id}}{$form->{"inventory_accno_$i"}} -= $linetotal;
+
+        # adjust and round sellprice
+       $form->{"sellprice_$i"} = $form->round_amount($form->{"sellprice_$i"} * $form->{exchangerate}, $decimalplaces);
+
+       
+       # update parts table
+       $form->update_balance($dbh,
+                             "parts",
+                             "onhand",
+                             qq|id = $form->{"id_$i"}|,
+                             $form->{"qty_$i"}) unless $form->{shipped};
+
+
+        # check if we sold the item already and
+        # make an entry for the expense and inventory
+       $query = qq|SELECT i.id, i.qty, i.allocated, i.trans_id,
+                   p.inventory_accno_id, p.expense_accno_id, a.transdate
+                   FROM invoice i, ar a, parts p
+                   WHERE i.parts_id = p.id
+                   AND i.parts_id = $form->{"id_$i"}
+                   AND (i.qty + i.allocated) > 0
+                   AND i.trans_id = a.id
+                   ORDER BY transdate|;
+       $sth = $dbh->prepare($query);
+       $sth->execute || $form->dberror($query);
+
+
+        my $totalqty = $form->{"qty_$i"};
+       
+       while (my $ref = $sth->fetchrow_hashref(NAME_lc)) {
+         
+         my $qty = $ref->{qty} + $ref->{allocated};
+         
+         if (($qty - $totalqty) > 0) {
+           $qty = $totalqty;
+         }
+
+
+          $linetotal = $form->round_amount($form->{"sellprice_$i"} * $qty, 2);
+
+         if ($ref->{allocated} < 0) {
+           # we have an entry for it already, adjust amount
+           $form->update_balance($dbh,
+                                 "acc_trans",
+                                 "amount",
+                                 qq|trans_id = $ref->{trans_id} AND chart_id = $ref->{inventory_accno_id} AND transdate = '$ref->{transdate}'|,
+                                 $linetotal);
+
+           $form->update_balance($dbh,
+                                 "acc_trans",
+                                 "amount",
+                                 qq|trans_id = $ref->{trans_id} AND chart_id = $ref->{expense_accno_id} AND transdate = '$ref->{transdate}'|,
+                                 $linetotal * -1);
+
+         } else {
+           # add entry for inventory, this one is for the sold item
+           if ($linetotal != 0) {
+             $query = qq|INSERT INTO acc_trans (trans_id, chart_id, amount, 
+                         transdate)
+                         VALUES ($ref->{trans_id}, $ref->{inventory_accno_id},
+                         $linetotal, '$ref->{transdate}')|;
+             $dbh->do($query) || $form->dberror($query);
+
+             # add expense
+             $query = qq|INSERT INTO acc_trans (trans_id, chart_id, amount, 
+                         transdate)
+                         VALUES ($ref->{trans_id}, $ref->{expense_accno_id},
+                         |. ($linetotal * -1) .qq|, '$ref->{transdate}')|;
+             $dbh->do($query) || $form->dberror($query);
+           }
+         }
+       
+         # update allocated for sold item
+         $form->update_balance($dbh,
+                               "invoice",
+                               "allocated",
+                               qq|id = $ref->{id}|,
+                               $qty * -1);
+       
+         $allocated += $qty;
+
+         last if (($totalqty -= $qty) <= 0);
+       }
+
+       $sth->finish;
+
+        $lastinventoryaccno = $form->{"inventory_accno_$i"};
+       
+      } else {
+       
+       $linetotal = $form->round_amount($form->{"sellprice_$i"} * $form->{"qty_$i"}, 2);
+       
+        if ($form->{taxincluded}) {
+         $taxamount = $linetotal * ($taxrate / (1 + $taxrate));
+         
+         $form->{"sellprice_$i"} = $form->{"sellprice_$i"} * (1 / (1 + $taxrate));
+       } else {
+         $taxamount = $linetotal * $taxrate;
+       }
+       
+       $netamount += $linetotal;
+       
+       if (@taxaccounts && $form->round_amount($taxamount, 2) == 0) {
+         if ($form->{taxincluded}) {
+           foreach $item (@taxaccounts) {
+             $taxamount = $form->round_amount($linetotal * $form->{"${item}_rate"} / (1 + abs($form->{"${item}_rate"})), 2);
+             $totaltax += $taxamount;
+             $taxdiff += $taxamount;
+             $form->{amount}{$form->{id}}{$item} -= $taxamount;
+           }
+           $form->{amount}{$form->{id}}{$taxaccounts[0]} += $taxdiff;
+         } else {
+           map { $form->{amount}{$form->{id}}{$_} -= $linetotal * $form->{"${_}_rate"} } @taxaccounts;
+         }
+       } else {
+           map { $form->{amount}{$form->{id}}{$_} -= $taxamount * $form->{"${_}_rate"} / $taxrate } @taxaccounts;
+       }
+       
+
+        $amount = $form->{"sellprice_$i"} * $form->{"qty_$i"} * $form->{exchangerate};
+       $linetotal = $form->round_amount($form->{"sellprice_$i"} * $form->{"qty_$i"}, 2) * $form->{exchangerate};
+       $linetotal = $form->round_amount($linetotal, 2);
+
+        # this is the difference for expense
+       $expensediff += ($amount - $linetotal);
+       
+       # add amount to expense
+       $form->{amount}{$form->{id}}{$form->{"expense_accno_$i"}} -= $linetotal;
+
+       $lastexpenseaccno = $form->{"expense_accno_$i"};
+
+        # adjust and round sellprice
+        $form->{"sellprice_$i"} = $form->round_amount($form->{"sellprice_$i"} * $form->{exchangerate}, $decimalplaces);
+       
+      }
+
+     
+      # save detail record in invoice table
+      $query = qq|INSERT INTO invoice (trans_id, parts_id, description, qty,
+                  sellprice, fxsellprice, discount, allocated,
+                 unit, deliverydate, project_id, serialnumber)
+                 VALUES ($form->{id}, $form->{"id_$i"}, |
+                 .$dbh->quote($form->{"description_$i"}).qq|, |
+                 .($form->{"qty_$i"} * -1) .qq|,
+                 $form->{"sellprice_$i"}, $fxsellprice,
+                 $form->{"discount_$i"}, $allocated, |
+                 .$dbh->quote($form->{"unit_$i"}).qq|, |
+                 .$form->dbquote($form->{"deliverydate_$i"}, SQL_DATE).qq|,
+                 $project_id, |
+                 .$dbh->quote($form->{"serialnumber_$i"}).qq|)|;
+      $dbh->do($query) || $form->dberror($query);
+
+    }
+  }
+
+
+  $form->{datepaid} = $form->{transdate};
+
+  # all amounts are in natural state, netamount includes the taxes
+  # if tax is included, netamount is rounded to 2 decimal places,
+  
+  # total payments
+  for my $i (1 .. $form->{paidaccounts}) {
+    $form->{"paid_$i"} = $form->parse_amount($myconfig, $form->{"paid_$i"});
+    $form->{paid} += $form->{"paid_$i"};
+    $form->{datepaid} = $form->{"datepaid_$i"} if ($form->{"datepaid_$i"}); 
+  }
+
+  my ($tax, $paiddiff) = (0, 0);
+
+  $netamount = $form->round_amount($netamount, 2);
+  
+  # figure out rounding errors for amount paid and total amount
+  if ($form->{taxincluded}) {
+
+    $amount = $form->round_amount($netamount * $form->{exchangerate}, 2);
+    $paiddiff = $amount - $netamount * $form->{exchangerate};
+    $netamount = $amount;
+
+    foreach $item (split / /, $form->{taxaccounts}) {
+      $amount = $form->{amount}{$form->{id}}{$item} * $form->{exchangerate};
+      $form->{amount}{$form->{id}}{$item} = $form->round_amount($amount, 2);
+      $amount = $form->{amount}{$form->{id}}{$item} * -1;
+      $tax += $amount;
+      $netamount -= $amount;
+    }
+
+    $invoicediff += $paiddiff;
+    $expensediff += $paiddiff;
+
+    ######## this only applies to tax included
+    if ($lastinventoryaccno) {
+      $form->{amount}{$form->{id}}{$lastinventoryaccno} -= $invoicediff;
+    }
+    if ($lastexpenseaccno) {
+      $form->{amount}{$form->{id}}{$lastexpenseaccno} -= $expensediff;
+    }
+
+  } else {
+    $amount = $form->round_amount($netamount * $form->{exchangerate}, 2);
+    $paiddiff = $amount - $netamount * $form->{exchangerate};
+    $netamount = $amount;
+    foreach my $item (split / /, $form->{taxaccounts}) {
+      $form->{amount}{$form->{id}}{$item} = $form->round_amount($form->{amount}{$form->{id}}{$item}, 2);
+      $amount = $form->round_amount($form->{amount}{$form->{id}}{$item} * $form->{exchangerate} * -1, 2);
+      $paiddiff += $amount - $form->{amount}{$form->{id}}{$item} * $form->{exchangerate} * -1;
+      $form->{amount}{$form->{id}}{$item} = $form->round_amount($amount * -1, 2);
+      $amount = $form->{amount}{$form->{id}}{$item} * -1;
+      $tax += $amount;
+    }
+  }
+
+
+  $form->{amount}{$form->{id}}{$form->{AP}} = $netamount + $tax;
+
+  if ($form->{paid} != 0) {
+    $form->{paid} = $form->round_amount($form->{paid} * $form->{exchangerate} + $paiddiff, 2);
+  }
+
+
+  # update exchangerate
+  if (($form->{currency} ne $form->{defaultcurrency}) && !$exchangerate) {
+    $form->update_exchangerate($dbh, $form->{currency}, $form->{transdate}, 0, $form->{exchangerate});
+  }
+  
+  # record acc_trans transactions
+  foreach my $trans_id (keys %{$form->{amount}}) {
+    foreach my $accno (keys %{ $form->{amount}{$trans_id} }) {
+      if (($form->{amount}{$trans_id}{$accno} = $form->round_amount($form->{amount}{$trans_id}{$accno}, 2)) != 0) {
+       $query = qq|INSERT INTO acc_trans (trans_id, chart_id, amount, 
+                   transdate)
+                   VALUES ($trans_id, (SELECT id FROM chart
+                                        WHERE accno = '$accno'),
+                   $form->{amount}{$trans_id}{$accno},
+                   '$form->{transdate}')|;
+       $dbh->do($query) || $form->dberror($query);
+      }
+    }
+  }
+
+  # deduct payment differences from paiddiff
+  for my $i (1 .. $form->{paidaccounts}) {
+    if ($form->{"paid_$i"} != 0) {
+      $amount = $form->round_amount($form->{"paid_$i"} * $form->{exchangerate}, 2);
+      $paiddiff -= $amount - $form->{"paid_$i"} * $form->{exchangerate};
+    }
+  }
+
+  # force AP entry if 0
+  $form->{amount}{$form->{id}}{$form->{AP}} = $form->{paid} if ($form->{amount}{$form->{id}}{$form->{AP}} == 0);
+  
+  # record payments and offsetting AP
+  for my $i (1 .. $form->{paidaccounts}) {
+
+    if ($form->{"paid_$i"} != 0) {
+      my ($accno) = split /--/, $form->{"AP_paid_$i"};
+      $form->{"datepaid_$i"} = $form->{transdate} unless ($form->{"datepaid_$i"});
+      $form->{datepaid} = $form->{"datepaid_$i"};
+      
+      $amount = ($form->round_amount($form->{"paid_$i"} * $form->{exchangerate} + $paiddiff, 2)) * -1;
+      
+      # record AP
+      
+      if ($form->{amount}{$form->{id}}{$form->{AP}} != 0) {
+       $query = qq|INSERT INTO acc_trans (trans_id, chart_id, amount,
+                   transdate)
+                   VALUES ($form->{id}, (SELECT id FROM chart
+                                       WHERE accno = '$form->{AP}'),
+                   $amount, '$form->{"datepaid_$i"}')|;
+       $dbh->do($query) || $form->dberror($query);
+      }
+
+      # record payment
+      
+      $query = qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate,
+                  source, memo)
+                  VALUES ($form->{id}, (SELECT id FROM chart
+                                     WHERE accno = '$accno'),
+                  $form->{"paid_$i"}, '$form->{"datepaid_$i"}', |
+                 .$dbh->quote($form->{"source_$i"}).qq|, |
+                 .$dbh->quote($form->{"memo_$i"}).qq|)|;
+      $dbh->do($query) || $form->dberror($query);
+
+
+      $exchangerate = 0;
+
+      if ($form->{currency} eq $form->{defaultcurrency}) {
+       $form->{"exchangerate_$i"} = 1;
+      } else {
+       $exchangerate = $form->check_exchangerate($myconfig, $form->{currency}, $form->{"datepaid_$i"}, 'sell');
+
+       $form->{"exchangerate_$i"} = ($exchangerate) ? $exchangerate : $form->parse_amount($myconfig, $form->{"exchangerate_$i"});
+      }
+      
+
+      # exchangerate difference
+      $form->{fx}{$accno}{$form->{"datepaid_$i"}} += $form->{"paid_$i"} * ($form->{"exchangerate_$i"} - 1) + $paiddiff;
+      
+
+      # gain/loss
+      $amount = $form->round_amount($form->{"paid_$i"} * $form->{exchangerate},2) - $form->round_amount($form->{"paid_$i"} * $form->{"exchangerate_$i"},2);
+      if ($amount > 0) {
+       $form->{fx}{$form->{fxgain_accno}}{$form->{"datepaid_$i"}} += $amount;
+      } else {
+       $form->{fx}{$form->{fxloss_accno}}{$form->{"datepaid_$i"}} += $amount;
+      }
+      
+      $paiddiff = 0;
+
+      # update exchange rate
+      if (($form->{currency} ne $form->{defaultcurrency}) && !$exchangerate) {
+       $form->update_exchangerate($dbh, $form->{currency}, $form->{"datepaid_$i"}, 0, $form->{"exchangerate_$i"});
+      }
+    }
+  }
+
+  # record exchange rate differences and gains/losses
+  foreach my $accno (keys %{$form->{fx}}) {
+    foreach my $transdate (keys %{ $form->{fx}{$accno} }) {
+      if (($form->{fx}{$accno}{$transdate} = $form->round_amount($form->{fx}{$accno}{$transdate}, 2)) != 0) {
+
+       $query = qq|INSERT INTO acc_trans (trans_id, chart_id, amount,
+                   transdate, cleared, fx_transaction)
+                   VALUES ($form->{id}, (SELECT id FROM chart
+                                       WHERE accno = '$accno'),
+                    $form->{fx}{$accno}{$transdate}, '$transdate', '0', '1')|;
+        $dbh->do($query) || $form->dberror($query);
+      }
+    }
+  }
+
+
+  $amount = $netamount + $tax;
+
+  # set values which could be empty
+  $form->{taxincluded} *= 1;
+  
+  ($null, $form->{department_id}) = split(/--/, $form->{department});
+  $form->{department_id} *= 1;
+
+  # save AP record
+  $query = qq|UPDATE ap set
+              invnumber = |.$dbh->quote($form->{invnumber}).qq|,
+             ordnumber = |.$dbh->quote($form->{ordnumber}).qq|,
+             quonumber = |.$dbh->quote($form->{quonumber}).qq|,
+              transdate = '$form->{transdate}',
+              vendor_id = $form->{vendor_id},
+              amount = $amount,
+              netamount = $netamount,
+              paid = $form->{paid},
+             datepaid = |.$form->dbquote($form->{datepaid}, SQL_DATE).qq|,
+             duedate = |.$form->dbquote($form->{duedate}, SQL_DATE).qq|,
+             invoice = '1',
+             taxincluded = '$form->{taxincluded}',
+             notes = |.$dbh->quote($form->{notes}).qq|,
+             intnotes = |.$dbh->quote($form->{intnotes}).qq|,
+             curr = '$form->{currency}',
+             department_id = $form->{department_id},
+             language_code = '$form->{language_code}'
+              WHERE id = $form->{id}|;
+  $dbh->do($query) || $form->dberror($query);
+
+  # add shipto
+  $form->{name} = $form->{vendor};
+  $form->{name} =~ s/--$form->{vendor_id}//;
+  $form->add_shipto($dbh, $form->{id});
+  
+  my %audittrail = ( tablename  => 'ap',
+                     reference  => $form->{invnumber},
+                    formname   => $form->{type},
+                    action     => 'posted',
+                    id         => $form->{id} );
+  $form->audittrail($dbh, "", \%audittrail);
+  my $rc = $dbh->commit;
+  $dbh->disconnect;
+  $rc;
+  
+}
+
+
+
+sub reverse_invoice {
+  my ($dbh, $form) = @_;
+  
+  # reverse inventory items
+  my $query = qq|SELECT i.parts_id, p.inventory_accno_id, p.expense_accno_id,
+                 i.qty, i.allocated, i.sellprice
+                 FROM invoice i, parts p
+                WHERE i.parts_id = p.id
+                 AND i.trans_id = $form->{id}|;
+  my $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  my $netamount = 0;
+  
+  while (my $ref = $sth->fetchrow_hashref(NAME_lc)) {
+    $netamount += $form->round_amount($ref->{sellprice} * $ref->{qty} * -1, 2);
+
+    if ($ref->{inventory_accno_id}) {
+      # update onhand
+      $form->update_balance($dbh,
+                           "parts",
+                           "onhand",
+                           qq|id = $ref->{parts_id}|,
+                           $ref->{qty});
+      # if $ref->{allocated} > 0 than we sold that many items
+      if ($ref->{allocated} > 0) {
+
+       # get references for sold items
+       $query = qq|SELECT i.id, i.trans_id, i.allocated, a.transdate
+                   FROM invoice i, ar a
+                   WHERE i.parts_id = $ref->{parts_id}
+                   AND i.allocated < 0
+                   AND i.trans_id = a.id
+                   ORDER BY transdate DESC|;
+       my $sth = $dbh->prepare($query);
+       $sth->execute || $form->dberror($query);
+
+       while (my $pthref = $sth->fetchrow_hashref(NAME_lc)) {
+         my $qty = $ref->{allocated};
+         
+         if (($ref->{allocated} + $pthref->{allocated}) > 0) {
+           $qty = $pthref->{allocated} * -1;
+         }
+
+         my $amount = $form->round_amount($ref->{sellprice} * $qty, 2);
+
+         #adjust allocated
+         $form->update_balance($dbh,
+                               "invoice",
+                               "allocated",
+                               qq|id = $pthref->{id}|,
+                               $qty);
+         
+         $form->update_balance($dbh,
+                               "acc_trans",
+                               "amount",
+                               qq|trans_id = $pthref->{trans_id} AND chart_id = $ref->{expense_accno_id} AND transdate = '$pthref->{transdate}'|,
+                               $amount);
+                     
+         $form->update_balance($dbh,
+                               "acc_trans",
+                               "amount",
+                               qq|trans_id = $pthref->{trans_id} AND chart_id = $ref->{inventory_accno_id} AND transdate = '$pthref->{transdate}'|,
+                               $amount * -1);
+
+          $query = qq|DELETE FROM acc_trans
+                     WHERE trans_id = $pthref->{trans_id}
+                     AND amount = 0|;
+         $dbh->do($query) || $form->dberror($query);
+         
+         last if (($ref->{allocated} -= $qty) <= 0);
+       }
+       $sth->finish;
+      }
+    }
+  }
+  $sth->finish;
+  
+  # delete acc_trans
+  $query = qq|DELETE FROM acc_trans
+              WHERE trans_id = $form->{id}|;
+  $dbh->do($query) || $form->dberror($query);
+
+  # delete invoice entries
+  $query = qq|DELETE FROM invoice
+              WHERE trans_id = $form->{id}|;
+  $dbh->do($query) || $form->dberror($query);
+
+  $query = qq|DELETE FROM shipto
+              WHERE trans_id = $form->{id}|;
+  $dbh->do($query) || $form->dberror($query);
+  
+} 
+
+
+
+sub delete_invoice {
+  my ($self, $myconfig, $form) = @_;
+
+  # connect to database
+  my $dbh = $form->dbconnect_noauto($myconfig);
+  
+  my %audittrail = ( tablename  => 'ap',
+                     reference  => $form->{invnumber},
+                    formname   => $form->{type},
+                    action     => 'deleted',
+                    id         => $form->{id} );
+  $form->audittrail($dbh, "", \%audittrail);
+
+  &reverse_invoice($dbh, $form);
+  
+  # delete AP record
+  my $query = qq|DELETE FROM ap
+                 WHERE id = $form->{id}|;
+  $dbh->do($query) || $form->dberror($query);
+
+  my $rc = $dbh->commit;
+  $dbh->disconnect;
+
+  $rc;
+  
+}
+
+
+
+sub retrieve_invoice {
+  my ($self, $myconfig, $form) = @_;
+  
+  # connect to database
+  my $dbh = $form->dbconnect_noauto($myconfig);
+
+  my $query;
+
+  if ($form->{id}) {
+    # get default accounts and last invoice number
+    $query = qq|SELECT (SELECT c.accno FROM chart c
+                        WHERE d.inventory_accno_id = c.id) AS inventory_accno,
+                       (SELECT c.accno FROM chart c
+                       WHERE d.income_accno_id = c.id) AS income_accno,
+                       (SELECT c.accno FROM chart c
+                       WHERE d.expense_accno_id = c.id) AS expense_accno,
+                      (SELECT c.accno FROM chart c
+                       WHERE d.fxgain_accno_id = c.id) AS fxgain_accno,
+                      (SELECT c.accno FROM chart c
+                       WHERE d.fxloss_accno_id = c.id) AS fxloss_accno,
+                d.curr AS currencies
+               FROM defaults d|;
+  } else {
+    $query = qq|SELECT (SELECT c.accno FROM chart c
+                        WHERE d.inventory_accno_id = c.id) AS inventory_accno,
+                       (SELECT c.accno FROM chart c
+                       WHERE d.income_accno_id = c.id) AS income_accno,
+                       (SELECT c.accno FROM chart c
+                       WHERE d.expense_accno_id = c.id) AS expense_accno,
+                      (SELECT c.accno FROM chart c
+                       WHERE d.fxgain_accno_id = c.id) AS fxgain_accno,
+                      (SELECT c.accno FROM chart c
+                       WHERE d.fxloss_accno_id = c.id) AS fxloss_accno,
+                d.curr AS currencies,
+               current_date AS transdate
+               FROM defaults d|;
+  }
+  my $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  my $ref = $sth->fetchrow_hashref(NAME_lc);
+  map { $form->{$_} = $ref->{$_} } keys %$ref;
+  $sth->finish;
+
+
+  if ($form->{id}) {
+    
+    # retrieve invoice
+    $query = qq|SELECT a.invnumber, a.transdate, a.duedate,
+                a.ordnumber, a.quonumber, a.paid, a.taxincluded, a.notes,
+               a.intnotes, a.curr AS currency, a.vendor_id, a.language_code
+               FROM ap a
+               WHERE id = $form->{id}|;
+    $sth = $dbh->prepare($query);
+    $sth->execute || $form->dberror($query);
+
+    $ref = $sth->fetchrow_hashref(NAME_lc);
+    map { $form->{$_} = $ref->{$_} } keys %$ref;
+    $sth->finish;
+
+    # get shipto
+    $query = qq|SELECT * FROM shipto
+                WHERE trans_id = $form->{id}|;
+    $sth = $dbh->prepare($query);
+    $sth->execute || $form->dberror($query);
+
+    $ref = $sth->fetchrow_hashref(NAME_lc);
+    map { $form->{$_} = $ref->{$_} } keys %$ref;
+    $sth->finish;
+    
+    # retrieve individual items
+    $query = qq|SELECT c1.accno AS inventory_accno,
+                       c2.accno AS income_accno,
+                      c3.accno AS expense_accno,
+               p.partnumber, i.description, i.qty, i.fxsellprice, i.sellprice,
+               i.parts_id AS id, i.unit, p.bin, i.deliverydate,
+               pr.projectnumber,
+                i.project_id, i.serialnumber, i.discount,
+               pg.partsgroup, p.partsgroup_id, p.partnumber AS sku,
+               t.description AS partsgrouptranslation
+               FROM invoice i
+               JOIN parts p ON (i.parts_id = p.id)
+               LEFT JOIN chart c1 ON (p.inventory_accno_id = c1.id)
+               LEFT JOIN chart c2 ON (p.income_accno_id = c2.id)
+               LEFT JOIN chart c3 ON (p.expense_accno_id = c3.id)
+               LEFT JOIN project pr ON (i.project_id = pr.id)
+               LEFT JOIN partsgroup pg ON (pg.id = p.partsgroup_id)
+               LEFT JOIN translation t ON (t.trans_id = p.partsgroup_id AND t.language_code = '$form->{language_code}')
+               WHERE i.trans_id = $form->{id}
+               ORDER BY i.id|;
+    $sth = $dbh->prepare($query);
+    $sth->execute || $form->dberror($query);
+
+    # exchangerate defaults
+    &exchangerate_defaults($dbh, $form);
+
+    # price matrix and vendor partnumber
+    $query = qq|SELECT partnumber
+                FROM partsvendor
+               WHERE parts_id = ?
+               AND vendor_id = $form->{vendor_id}|;
+    my $pmh = $dbh->prepare($query) || $form->dberror($query);
+
+    # tax rates for part
+    $query = qq|SELECT c.accno
+               FROM chart c
+               JOIN partstax pt ON (pt.chart_id = c.id)
+               WHERE pt.parts_id = ?|;
+    my $tth = $dbh->prepare($query);
+
+    my $ptref;
+    my $taxrate;
+
+    while ($ref = $sth->fetchrow_hashref(NAME_lc)) {
+
+      ($decimalplaces) = ($ref->{fxsellprice} =~ /\.(\d+)/);
+      $decimalplaces = length $decimalplaces;
+      $decimalplaces = 2 unless $decimalplaces;
+
+      $tth->execute($ref->{id});
+      $ref->{taxaccounts} = "";
+      $taxrate = 0;
+      
+      while ($ptref = $tth->fetchrow_hashref(NAME_lc)) {
+        $ref->{taxaccounts} .= "$ptref->{accno} ";
+        $taxrate += $form->{"$ptref->{accno}_rate"};
+      }
+      
+      $tth->finish;
+      chop $ref->{taxaccounts};
+
+      # price matrix
+      $ref->{sellprice} = $form->round_amount($ref->{fxsellprice} * $form->{$form->{currency}}, 2);
+      &price_matrix($pmh, $ref, $decimalplaces, $form);
+
+      $ref->{sellprice} = $ref->{fxsellprice};
+      $ref->{qty} *= -1;
+
+      $ref->{partsgroup} = $ref->{partsgrouptranslation} if $ref->{partsgrouptranslation};
+      
+      push @{ $form->{invoice_details} }, $ref;
+      
+    }
+    
+    $sth->finish;
+    
+  }
+  
+  
+  my $rc = $dbh->commit;
+  $dbh->disconnect;
+  
+  $rc;
+  
+}
+
+
+
+sub get_vendor {
+  my ($self, $myconfig, $form) = @_;
+  
+  # connect to database
+  my $dbh = $form->dbconnect($myconfig);
+  
+  my $dateformat = $myconfig->{dateformat};
+  if ($myconfig->{dateformat} !~ /^y/) {
+    my @a = split /\W/, $form->{transdate};
+    $dateformat .= "yy" if (length $a[2] > 2);
+  }
+
+  if ($form->{transdate} !~ /\W/) {
+    $dateformat = 'yyyymmdd';
+  }
+
+  my $duedate;
+  
+  if ($myconfig->{dbdriver} eq 'DB2') {
+    $duedate = ($form->{transdate}) ? "date('$form->{transdate}') + v.terms DAYS" : "current_date + v.terms DAYS";
+  } else {
+    $duedate = ($form->{transdate}) ? "to_date('$form->{transdate}', '$dateformat') + v.terms" : "current_date + v.terms";
+  }
+
+  $form->{vendor_id} *= 1;
+  # get vendor
+  my $query = qq|SELECT v.name AS vendor, v.creditlimit, v.terms,
+                 v.email, v.cc, v.bcc, v.taxincluded,
+                v.address1, v.address2, v.city, v.state,
+                v.zipcode, v.country, v.curr AS currency, v.language_code,
+                 $duedate AS duedate, v.notes AS intnotes,
+                e.name AS employee, e.id AS employee_id
+                 FROM vendor v
+                LEFT JOIN employee e ON (e.id = v.employee_id)
+                WHERE v.id = $form->{vendor_id}|;
+  my $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  $ref = $sth->fetchrow_hashref(NAME_lc);
+  
+  if ($form->{id}) {
+    map { delete $ref->{$_} } qw(currency taxincluded employee employee_id intnotes);
+  }
+  
+  map { $form->{$_} = $ref->{$_} } keys %$ref;
+  $sth->finish;
+
+  # if no currency use defaultcurrency
+  $form->{currency} = ($form->{currency}) ? $form->{currency} : $form->{defaultcurrency};
+  
+  $form->{exchangerate} = 0 if $form->{currency} eq $form->{defaultcurrency};
+  if ($form->{transdate} && ($form->{currency} ne $form->{defaultcurrency})) {
+    $form->{exchangerate} = $form->get_exchangerate($dbh, $form->{currency}, $form->{transdate}, "sell"); 
+  }
+  $form->{forex} = $form->{exchangerate};
+
+  # if no employee, default to login
+  ($form->{employee}, $form->{employee_id}) = $form->get_employee($dbh) unless $form->{employee_id};
+  
+  $form->{creditremaining} = $form->{creditlimit};
+  $query = qq|SELECT SUM(amount - paid)
+              FROM ap
+             WHERE vendor_id = $form->{vendor_id}|;
+  $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  ($form->{creditremaining}) -= $sth->fetchrow_array;
+
+  $sth->finish;
+  
+  $query = qq|SELECT o.amount,
+                (SELECT e.sell FROM exchangerate e
+                WHERE e.curr = o.curr
+                AND e.transdate = o.transdate)
+             FROM oe o
+             WHERE o.vendor_id = $form->{vendor_id}
+             AND o.quotation = '0'
+             AND o.closed = '0'|;
+  $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  while (my ($amount, $exch) = $sth->fetchrow_array) {
+    $exch = 1 unless $exch;
+    $form->{creditremaining} -= $amount * $exch;
+  }
+  $sth->finish;
+    
+               
+  # get shipto if we do not convert an order or invoice
+  if (!$form->{shipto}) {
+    map { delete $form->{$_} } qw(shiptoname shiptoaddress1 shiptoaddress2 shiptocity shiptostate shiptozipcode shiptocountry shiptocontact shiptophone shiptofax shiptoemail);
+
+    $query = qq|SELECT * FROM shipto
+                WHERE trans_id = $form->{vendor_id}|;
+    $sth = $dbh->prepare($query);
+    $sth->execute || $form->dberror($query);
+
+    $ref = $sth->fetchrow_hashref(NAME_lc);
+    map { $form->{$_} = $ref->{$_} } keys %$ref;
+    $sth->finish;
+  }
+  
+  # get taxes for vendor
+  $query = qq|SELECT c.accno
+              FROM chart c
+             JOIN vendortax v ON (v.chart_id = c.id)
+             WHERE v.vendor_id = $form->{vendor_id}|;
+  $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  my $vendortax = ();
+  while ($ref = $sth->fetchrow_hashref(NAME_lc)) {
+    $vendortax{$ref->{accno}} = 1;
+  }
+  $sth->finish;
+
+
+  # get tax rates and description
+  $query = qq|SELECT c.accno, c.description, c.link, t.rate, t.taxnumber
+              FROM chart c
+             JOIN tax t ON (c.id = t.chart_id)
+             WHERE c.link LIKE '%CT_tax%'
+             ORDER BY accno|;
+  $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  $form->{taxaccounts} = "";
+  $form->{taxpart} = "";
+  $form->{taxservice} = "";
+  while ($ref = $sth->fetchrow_hashref(NAME_lc)) {
+    if ($vendortax{$ref->{accno}}) {
+      $form->{"$ref->{accno}_rate"} = $ref->{rate};
+      $form->{"$ref->{accno}_description"} = $ref->{description};
+      $form->{"$ref->{accno}_taxnumber"} = $ref->{taxnumber};
+      $form->{taxaccounts} .= "$ref->{accno} ";
+    }
+    
+    foreach my $item (split /:/, $ref->{link}) {
+      if ($item =~ /IC_taxpart/) {
+       $form->{taxpart} .= "$ref->{accno} ";
+      }
+      
+      if ($item =~ /IC_taxservice/) {
+       $form->{taxservice} .= "$ref->{accno} ";
+      }
+    }
+  }
+  $sth->finish;
+  chop $form->{taxaccounts};
+  chop $form->{taxpart};
+  chop $form->{taxservice};
+
+
+  if (!$form->{id} && $form->{type} !~ /_(order|quotation)/) {
+    # setup last accounts used
+    $query = qq|SELECT c.accno, c.description, c.link, c.category,
+                ac.project_id, p.projectnumber, a.department_id,
+               d.description AS department
+               FROM chart c
+               JOIN acc_trans ac ON (ac.chart_id = c.id)
+               JOIN ap a ON (a.id = ac.trans_id)
+               LEFT JOIN project p ON (ac.project_id = p.id)
+               LEFT JOIN department d ON (a.department_id = d.id)
+               WHERE a.vendor_id = $form->{vendor_id}
+               AND a.id IN (SELECT max(id) FROM ap
+                            WHERE vendor_id = $form->{vendor_id})|;
+    $sth = $dbh->prepare($query);
+    $sth->execute || $form->dberror($query);
+    
+    my $i = 0;
+    while ($ref = $sth->fetchrow_hashref(NAME_lc)) {
+      $form->{department} = $ref->{department};
+      $form->{department_id} = $ref->{department_id};
+
+      if ($ref->{link} =~ /_amount/) {
+       $i++;
+       $form->{"AP_amount_$i"} = "$ref->{accno}--$ref->{description}";
+       $form->{"projectnumber_$i"} = "$ref->{projectnumber}--$ref->{project_id}";
+      }
+      if ($ref->{category} eq 'L') {
+       $form->{AP} = $form->{AP_1} = "$ref->{accno}--$ref->{description}";
+      }
+    }
+    $sth->finish;
+    $form->{rowcount} = $i if ($i && !$form->{type});
+  }
+
+  $dbh->disconnect;
+  
+}
+
+
+sub retrieve_item {
+  my ($self, $myconfig, $form) = @_;
+
+  my $i = $form->{rowcount};
+  my $null;
+  my $var;
+  
+  # don't include assemblies or obsolete parts
+  my $where = "WHERE p.assembly = '0' AND p.obsolete = '0'";
+  
+  if ($form->{"partnumber_$i"}) {
+    $var = $form->like(lc $form->{"partnumber_$i"});
+    $where .= " AND lower(p.partnumber) LIKE '$var'";
+  }
+  
+  if ($form->{"description_$i"}) {
+    $var = $form->like(lc $form->{"description_$i"});
+    if ($form->{language_code}) {
+      $where .= " AND lower(t1.description) LIKE '$var'";
+    } else {
+      $where .= " AND lower(p.description) LIKE '$var'";
+    }
+  }
+
+  if ($form->{"partsgroup_$i"}) {
+    ($null, $var) = split /--/, $form->{"partsgroup_$i"};
+    $where .= qq| AND p.partsgroup_id = $var|;
+  }
+  
+  if ($form->{"description_$i"}) {
+    $where .= " ORDER BY 3";
+  } else {
+    $where .= " ORDER BY 2";
+  }
+
+  # connect to database
+  my $dbh = $form->dbconnect($myconfig);
+
+  my $query = qq|SELECT p.id, p.partnumber, p.description,
+                 c1.accno AS inventory_accno,
+                c2.accno AS income_accno,
+                c3.accno AS expense_accno,
+                pg.partsgroup, p.partsgroup_id,
+                 p.lastcost AS sellprice, p.unit, p.bin, p.onhand,
+                p.partnumber AS sku, p.weight,
+                t1.description AS translation,
+                t2.description AS grouptranslation
+                 FROM parts p
+                LEFT JOIN chart c1 ON (p.inventory_accno_id = c1.id)
+                LEFT JOIN chart c2 ON (p.income_accno_id = c2.id)
+                LEFT JOIN chart c3 ON (p.expense_accno_id = c3.id)
+                LEFT JOIN partsgroup pg ON (pg.id = p.partsgroup_id)
+                LEFT JOIN translation t1 ON (t1.trans_id = p.id AND t1.language_code = '$form->{language_code}')
+                LEFT JOIN translation t2 ON (t2.trans_id = p.partsgroup_id AND t2.language_code = '$form->{language_code}')
+                $where|;
+  my $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+  
+  # foreign currency
+  &exchangerate_defaults($dbh, $form);
+
+  # taxes
+  $query = qq|SELECT c.accno
+             FROM chart c
+             JOIN partstax pt ON (pt.chart_id = c.id)
+             WHERE pt.parts_id = ?|;
+  my $tth = $dbh->prepare($query) || $form->dberror($query);
+
+  # price matrix
+  $query = qq|SELECT p.*
+              FROM partsvendor p
+             WHERE p.parts_id = ?
+             AND vendor_id = $form->{vendor_id}|;
+  my $pmh = $dbh->prepare($query) || $form->dberror($query);
+
+  my $ref;
+  my $ptref;
+  my $decimalplaces;
+  
+  while ($ref = $sth->fetchrow_hashref(NAME_lc)) {
+
+    ($decimalplaces) = ($ref->{sellprice} =~ /\.(\d+)/);
+    $decimalplaces = length $decimalplaces;
+    $decimalplaces = 2 unless $decimalplaces;
+    
+    # get taxes for part
+    $tth->execute($ref->{id});
+
+    $ref->{taxaccounts} = "";
+    while ($ptref = $tth->fetchrow_hashref(NAME_lc)) {
+      $ref->{taxaccounts} .= "$ptref->{accno} ";
+    }
+    $tth->finish;
+    chop $ref->{taxaccounts};
+
+    # get vendor price and partnumber
+    &price_matrix($pmh, $ref, $decimalplaces, $form, $myconfig);
+
+    $ref->{description} = $ref->{translation} if $ref->{translation};
+    $ref->{partsgroup} = $ref->{grouptranslation} if $ref->{grouptranslation};
+    
+    push @{ $form->{item_list} }, $ref;
+    
+  }
+  
+  $sth->finish;
+  $dbh->disconnect;
+  
+}
+
+
+sub exchangerate_defaults {
+  my ($dbh, $form) = @_;
+
+  my $var;
+  
+  # get default currencies
+  my $query = qq|SELECT substr(curr,1,3), curr FROM defaults|;
+  my $eth = $dbh->prepare($query) || $form->dberror($query);
+  $eth->execute;
+  ($form->{defaultcurrency}, $form->{currencies}) = $eth->fetchrow_array;
+  $eth->finish;
+
+  $query = qq|SELECT sell
+              FROM exchangerate
+             WHERE curr = ?
+             AND transdate = ?|;
+  my $eth1 = $dbh->prepare($query) || $form->dberror($query);
+
+  $query = qq~SELECT max(transdate || ' ' || sell || ' ' || curr)
+              FROM exchangerate
+             WHERE curr = ?~;
+  my $eth2 = $dbh->prepare($query) || $form->dberror($query);
+
+  # get exchange rates for transdate or max
+  foreach $var (split /:/, substr($form->{currencies},4)) {
+    $eth1->execute($var, $form->{transdate});
+    ($form->{$var}) = $eth1->fetchrow_array;
+    if (! $form->{$var} ) {
+      $eth2->execute($var);
+
+      ($form->{$var}) = $eth2->fetchrow_array;
+      ($null, $form->{$var}) = split / /, $form->{$var};
+      $form->{$var} = 1 unless $form->{$var};
+      $eth2->finish;
+    }
+    $eth1->finish;
+  }
+
+  $form->{$form->{defaultcurrency}} = 1;
+  
+}
+
+
+sub price_matrix {
+  my ($pmh, $ref, $decimalplaces, $form, $myconfig) = @_;
+  
+  $pmh->execute($ref->{id});
+  my $mref = $pmh->fetchrow_hashref(NAME_lc);
+  
+  if ($mref->{partnumber}) {
+    $ref->{partnumber} = $mref->{partnumber};
+  }
+
+  if ($mref->{lastcost}) {
+    # do a conversion
+    $ref->{sellprice} = $form->round_amount($mref->{lastcost} * $form->{$mref->{curr}}, $decimalplaces);
+  }
+  $pmh->finish;
+
+  $ref->{sellprice} *= 1;
+  
+  # add 0:price to matrix
+  $ref->{pricematrix} = "0:$ref->{sellprice}";
+  
+}
+
+
+sub vendor_details {
+  my ($self, $myconfig, $form) = @_;
+      
+  # connect to database
+  my $dbh = $form->dbconnect($myconfig);
+
+  # get rest for the vendor
+  my $query = qq|SELECT vendornumber, name, address1, address2, city, state,
+                 zipcode, country,
+                 contact, phone as vendorphone, fax as vendorfax, vendornumber,
+                taxnumber, sic_code AS sic, iban, bic
+                 FROM vendor
+                 WHERE id = $form->{vendor_id}|;
+  my $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  $ref = $sth->fetchrow_hashref(NAME_lc);
+  map { $form->{$_} = $ref->{$_} } keys %$ref;
+
+  $sth->finish;
+  $dbh->disconnect;
+
+}
+
+
+sub item_links {
+  my ($self, $myconfig, $form) = @_;
+
+  # connect to database
+  my $dbh = $form->dbconnect($myconfig);
+
+  my $query = qq|SELECT accno, description, link
+                FROM chart
+                WHERE link LIKE '%IC%'
+                ORDER BY accno|;
+  my $sth = $dbh->prepare($query);
+  $sth->execute || $form->dberror($query);
+
+  while (my $ref = $sth->fetchrow_hashref(NAME_lc)) {
+    foreach my $key (split(/:/, $ref->{link})) {
+      if ($key =~ /IC/) {
+        push @{ $form->{IC_links}{$key} }, { accno => $ref->{accno},
+                                       description => $ref->{description} };
+      }
+    }
+  }
+
+  $sth->finish;
+}
+
+1;
+