bug 2893: extend conditions handled by AllowNotForLoanOverride
[koha.git] / C4 / Circulation.pm
index 5cec366..f4cea86 100644 (file)
@@ -19,7 +19,7 @@ package C4::Circulation;
 
 
 use strict;
-require Exporter;
+#use warnings;  # soon!
 use C4::Context;
 use C4::Stats;
 use C4::Reserves;
@@ -30,6 +30,8 @@ use C4::Members;
 use C4::Dates;
 use C4::Calendar;
 use C4::Accounts;
+use C4::ItemCirculationAlertPreference;
+use C4::Message;
 use Date::Calc qw(
   Today
   Today_and_Now
@@ -48,8 +50,8 @@ use Data::Dumper;
 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
 
 BEGIN {
-       # set the version for version checking
-       $VERSION = 3.01;
+       require Exporter;
+       $VERSION = 3.02;        # for version checking
        @ISA    = qw(Exporter);
 
        # FIXME subs that should probably be elsewhere
@@ -63,9 +65,7 @@ BEGIN {
                &CanBookBeIssued
                &CanBookBeRenewed
                &AddIssue
-                &ForceIssue
                &AddRenewal
-                &ForceRenewal
                &GetRenewCount
                &GetItemIssue
                 &GetOpenIssue
@@ -74,6 +74,7 @@ BEGIN {
                &GetIssuingCharges
                &GetIssuingRule
         &GetBranchBorrowerCircRule
+        &GetBranchItemRule
                &GetBiblioIssues
                &AnonymiseIssueHistory
        );
@@ -81,7 +82,6 @@ BEGIN {
        # subs to deal with returns
        push @EXPORT, qw(
                &AddReturn
-                &ForceReturn
         &MarkIssueReturned
        );
 
@@ -92,6 +92,9 @@ BEGIN {
                &GetTransfersFromTo
                &updateWrongTransfer
                &DeleteTransfer
+                &IsBranchTransferAllowed
+                &CreateBranchTransferLimit
+                &DeleteBranchTransferLimits
        );
 }
 
@@ -113,7 +116,7 @@ Also deals with stocktaking.
 
 =head2 barcodedecode
 
-=head3 $str = &barcodedecode($barcode);
+=head3 $str = &barcodedecode($barcode, [$filter]);
 
 =over 4
 
@@ -124,6 +127,10 @@ to circulation.pl that differs from the barcode stored for the item.
 For proper functioning of this filter, calling the function on the 
 correct barcode string (items.barcode) should return an unaltered barcode.
 
+The optional $filter argument is to allow for testing or explicit 
+behavior that ignores the System Pref.  Valid values are the same as the 
+System Pref options.
+
 =back
 
 =cut
@@ -132,31 +139,27 @@ correct barcode string (items.barcode) should return an unaltered barcode.
 # FIXME -- these plugins should be moved out of Circulation.pm
 #
 sub barcodedecode {
-    my ($barcode) = @_;
-    my $filter = C4::Context->preference('itemBarcodeInputFilter');
-       if($filter eq 'whitespace') {
+    my ($barcode, $filter) = @_;
+    $filter = C4::Context->preference('itemBarcodeInputFilter') unless $filter;
+    $filter or return $barcode;     # ensure filter is defined, else return untouched barcode
+       if ($filter eq 'whitespace') {
                $barcode =~ s/\s//g;
-               return $barcode;
-       } elsif($filter eq 'cuecat') {
+       } elsif ($filter eq 'cuecat') {
                chomp($barcode);
            my @fields = split( /\./, $barcode );
            my @results = map( decode($_), @fields[ 1 .. $#fields ] );
-           if ( $#results == 2 ) {
-               return $results[2];
-           }
-           else {
-               return $barcode;
-           }
-       } elsif($filter eq 'T-prefix') {
-               if ( $barcode =~ /^[Tt]/) {
-                       if (substr($barcode,1,1) eq '0') {
-                               return $barcode;
-                       } else {
-                               $barcode = substr($barcode,2) + 0 ;
-                       }
+           ($#results == 2) and return $results[2];
+       } elsif ($filter eq 'T-prefix') {
+               if ($barcode =~ /^[Tt](\d)/) {
+                       (defined($1) and $1 eq '0') and return $barcode;
+            $barcode = substr($barcode, 2) + 0;     # FIXME: probably should be substr($barcode, 1)
                }
-               return sprintf( "T%07d",$barcode);
+        return sprintf("T%07d", $barcode);
+        # FIXME: $barcode could be "T1", causing warning: substr outside of string
+        # Why drop the nonzero digit after the T?
+        # Why pass non-digits (or empty string) to "T%07d"?
        }
+    return $barcode;    # return barcode, modified or not
 }
 
 =head2 decode
@@ -168,6 +171,9 @@ sub barcodedecode {
 =item Decodes a segment of a string emitted by a CueCat barcode scanner and
 returns it.
 
+FIXME: Should be replaced with Barcode::Cuecat from CPAN
+or Javascript based decoding on the client side.
+
 =back
 
 =cut
@@ -180,7 +186,7 @@ sub decode {
     my $l = ( $#s + 1 ) % 4;
     if ($l) {
         if ( $l == 1 ) {
-            warn "Error!";
+            # warn "Error: Cuecat decode parsing failed!";
             return;
         }
         $l = 4 - $l;
@@ -271,9 +277,23 @@ sub transferbook {
     my $hbr = $biblio->{'homebranch'};
     my $fbr = $biblio->{'holdingbranch'};
 
+    # if using Branch Transfer Limits
+    if ( C4::Context->preference("UseBranchTransferLimits") == 1 ) {
+        if ( C4::Context->preference("item-level_itypes") && C4::Context->preference("BranchTransferLimitsType") eq 'itemtype' ) {
+            if ( ! IsBranchTransferAllowed( $tbr, $fbr, $biblio->{'itype'} ) ) {
+                $messages->{'NotAllowed'} = $tbr . "::" . $biblio->{'itype'};
+                $dotransfer = 0;
+            }
+        } elsif ( ! IsBranchTransferAllowed( $tbr, $fbr, $biblio->{ C4::Context->preference("BranchTransferLimitsType") } ) ) {
+            $messages->{'NotAllowed'} = $tbr . "::" . $biblio->{ C4::Context->preference("BranchTransferLimitsType") };
+            $dotransfer = 0;
+       }
+    }
+
     # if is permanent...
     if ( $hbr && $branches->{$hbr}->{'PE'} ) {
         $messages->{'IsPermanent'} = $hbr;
+        $dotransfer = 0;
     }
 
     # can't transfer book if is already there....
@@ -649,10 +669,28 @@ sub CanBookBeIssued {
        $item->{'itemtype'}=$item->{'itype'}; 
     my $dbh             = C4::Context->dbh;
 
+    # MANDATORY CHECKS - unless item exists, nothing else matters
+    unless ( $item->{barcode} ) {
+        $issuingimpossible{UNKNOWN_BARCODE} = 1;
+    }
+       return ( \%issuingimpossible, \%needsconfirmation ) if %issuingimpossible;
+
     #
     # DUE DATE is OK ? -- should already have checked.
     #
-    #$issuingimpossible{INVALID_DATE} = 1 unless ($duedate);
+    unless ( $duedate ) {
+        my $issuedate = strftime( "%Y-%m-%d", localtime );
+        my $branch = (C4::Context->preference('CircControl') eq 'PickupLibrary') ? C4::Context->userenv->{'branch'} :
+                     (C4::Context->preference('CircControl') eq 'PatronLibrary') ? $borrower->{'branchcode'}        :
+                     $item->{'homebranch'};     # fallback to item's homebranch
+        my $itype = ( C4::Context->preference('item-level_itypes') ) ? $item->{'itype'} : $biblioitem->{'itemtype'};
+        my $loanlength = GetLoanLength( $borrower->{'categorycode'}, $itype, $branch );
+        $duedate = CalcDateDue( C4::Dates->new( $issuedate, 'iso' ), $loanlength, $branch, $borrower );
+
+        # Offline circ calls AddIssue directly, doesn't run through here
+        #  So issuingimpossible should be ok.
+    }
+    $issuingimpossible{INVALID_DATE} = $duedate->output('syspref') unless ( $duedate && $duedate->output('iso') ge C4::Dates->today('iso') );
 
     #
     # BORROWER STATUS
@@ -692,7 +730,7 @@ sub CanBookBeIssued {
         if ( $amount > $amountlimit && !$inprocess ) {
             $issuingimpossible{DEBT} = sprintf( "%.2f", $amount );
         }
-        elsif ( $amount <= $amountlimit && !$inprocess ) {
+        elsif ( $amount > 0 && $amount <= $amountlimit && !$inprocess ) {
             $needsconfirmation{DEBT} = sprintf( "%.2f", $amount );
         }
     }
@@ -706,35 +744,49 @@ sub CanBookBeIssued {
     # JB34 CHECKS IF BORROWERS DONT HAVE ISSUE TOO MANY BOOKS
     #
        my $toomany = TooMany( $borrower, $item->{biblionumber}, $item );
-    $needsconfirmation{TOO_MANY} = $toomany if $toomany;
+    # if TooMany return / 0, then the user has no permission to check out this book
+    if ($toomany =~ /\/ 0/) {
+        $needsconfirmation{PATRON_CANT} = 1;
+    } else {
+        $needsconfirmation{TOO_MANY} = $toomany if $toomany;
+    }
 
     #
     # ITEM CHECKING
     #
-    unless ( $item->{barcode} ) {
-        $issuingimpossible{UNKNOWN_BARCODE} = 1;
-    }
     if (   $item->{'notforloan'}
         && $item->{'notforloan'} > 0 )
     {
-        $issuingimpossible{NOT_FOR_LOAN} = 1;
+        if(!C4::Context->preference("AllowNotForLoanOverride")){
+            $issuingimpossible{NOT_FOR_LOAN} = 1;
+        }else{
+            $needsconfirmation{NOT_FOR_LOAN_FORCING} = 1;
+        }
+    }
+    elsif ( !$item->{'notforloan'} ){
+        # we have to check itemtypes.notforloan also
+        if (C4::Context->preference('item-level_itypes')){
+            # this should probably be a subroutine
+            my $sth = $dbh->prepare("SELECT notforloan FROM itemtypes WHERE itemtype = ?");
+            $sth->execute($item->{'itemtype'});
+            my $notforloan=$sth->fetchrow_hashref();
+            $sth->finish();
+            if ($notforloan->{'notforloan'}) {
+                if (!C4::Context->preference("AllowNotForLoanOverride")) {
+                    $issuingimpossible{NOT_FOR_LOAN} = 1;
+                } else {
+                    $needsconfirmation{NOT_FOR_LOAN_FORCING} = 1;
+                }
+            }
+        }
+        elsif ($biblioitem->{'notforloan'} == 1){
+            if (!C4::Context->preference("AllowNotForLoanOverride")) {
+                $issuingimpossible{NOT_FOR_LOAN} = 1;
+            } else {
+                $needsconfirmation{NOT_FOR_LOAN_FORCING} = 1;
+            }
+        }
     }
-       elsif ( !$item->{'notforloan'} ){
-               # we have to check itemtypes.notforloan also
-               if (C4::Context->preference('item-level_itypes')){
-                       # this should probably be a subroutine
-                       my $sth = $dbh->prepare("SELECT notforloan FROM itemtypes WHERE itemtype = ?");
-                       $sth->execute($item->{'itemtype'});
-                       my $notforloan=$sth->fetchrow_hashref();
-                       $sth->finish();
-                       if ($notforloan->{'notforloan'} == 1){
-                               $issuingimpossible{NOT_FOR_LOAN} = 1;                           
-                       }
-               }
-               elsif ($biblioitem->{'notforloan'} == 1){
-                       $issuingimpossible{NOT_FOR_LOAN} = 1;
-               }
-       }
     if ( $item->{'wthdrawn'} && $item->{'wthdrawn'} == 1 )
     {
         $issuingimpossible{WTHDRAWN} = 1;
@@ -746,7 +798,7 @@ sub CanBookBeIssued {
     }
     if ( C4::Context->preference("IndependantBranches") ) {
         my $userenv = C4::Context->userenv;
-        if ( ($userenv) && ( $userenv->{flags} != 1 ) ) {
+        if ( ($userenv) && ( $userenv->{flags} % 2 != 1 ) ) {
             $issuingimpossible{NOTSAMEBRANCH} = 1
               if ( $item->{C4::Context->preference("HomeOrHoldingBranch")} ne $userenv->{branch} );
         }
@@ -774,7 +826,7 @@ sub CanBookBeIssued {
     elsif ($issue->{borrowernumber}) {
 
         # issued to someone else
-        my $currborinfo = GetMemberDetails( $issue->{borrowernumber} );
+        my $currborinfo =    C4::Members::GetMemberDetails( $issue->{borrowernumber} );
 
 #        warn "=>.$currborinfo->{'firstname'} $currborinfo->{'surname'} ($currborinfo->{'cardnumber'})";
         $needsconfirmation{ISSUED_TO_ANOTHER} =
@@ -785,7 +837,7 @@ sub CanBookBeIssued {
     my ( $restype, $res ) = C4::Reserves::CheckReserves( $item->{'itemnumber'} );
     if ($restype) {
                my $resbor = $res->{'borrowernumber'};
-               my ( $resborrower ) = GetMemberDetails( $resbor, 0 );
+               my ( $resborrower ) = C4::Members::GetMemberDetails( $resbor, 0 );
                my $branches  = GetBranches();
                my $branchname = $branches->{ $res->{'branchcode'} }->{'branchname'};
         if ( $resbor ne $borrower->{'borrowernumber'} && $restype eq "Waiting" )
@@ -801,12 +853,6 @@ sub CanBookBeIssued {
 "$res->{'reservedate'} : $resborrower->{'firstname'} $resborrower->{'surname'} ($resborrower->{'cardnumber'})";
         }
     }
-    if ( C4::Context->preference("LibraryName") eq "Horowhenua Library Trust" ) {
-        if ( $borrower->{'categorycode'} eq 'W' ) {
-            my %emptyhash;
-            return ( \%emptyhash, \%needsconfirmation );
-        }
-       }
        return ( \%issuingimpossible, \%needsconfirmation );
 }
 
@@ -814,61 +860,57 @@ sub CanBookBeIssued {
 
 Issue a book. Does no check, they are done in CanBookBeIssued. If we reach this sub, it means the user confirmed if needed.
 
-&AddIssue($borrower,$barcode,$date)
+&AddIssue($borrower, $barcode, [$datedue], [$cancelreserve], [$issuedate])
 
 =over 4
 
-=item C<$borrower> hash with borrower informations (from GetMemberDetails)
+=item C<$borrower> is a hash with borrower informations (from GetMemberDetails).
 
-=item C<$barcode> is the bar code of the book being issued.
+=item C<$barcode> is the barcode of the item being issued.
 
-=item C<$date> contains the max date of return. calculated if empty.
+=item C<$datedue> is a C4::Dates object for the max date of return, i.e. the date due (optional).
+Calculated if empty.
 
-=item C<$cancelreserve>
+=item C<$cancelreserve> is 1 to override and cancel any pending reserves for the item (optional).
 
-=item C<$issuedate> the date to issue the item in iso format (YYYY-MM-DD). Defaults to today.
+=item C<$issuedate> is the date to issue the item in iso (YYYY-MM-DD) format (optional).
+Defaults to today.  Unlike C<$datedue>, NOT a C4::Dates object, unfortunately.
 
 AddIssue does the following things :
-- step 01: check that there is a borrowernumber & a barcode provided
-- check for RENEWAL (book issued & being issued to the same patron)
-    - renewal YES = Calculate Charge & renew
-    - renewal NO  = 
-        * BOOK ACTUALLY ISSUED ? do a return if book is actually issued (but to someone else)
-        * RESERVE PLACED ?
-            - fill reserve if reserve to this patron
-            - cancel reserve or not, otherwise
-        * TRANSFERT PENDING ?
-            - complete the transfert
-        * ISSUE THE BOOK
+
+  - step 01: check that there is a borrowernumber & a barcode provided
+  - check for RENEWAL (book issued & being issued to the same patron)
+      - renewal YES = Calculate Charge & renew
+      - renewal NO  =
+          * BOOK ACTUALLY ISSUED ? do a return if book is actually issued (but to someone else)
+          * RESERVE PLACED ?
+              - fill reserve if reserve to this patron
+              - cancel reserve or not, otherwise
+          * TRANSFERT PENDING ?
+              - complete the transfert
+          * ISSUE THE BOOK
 
 =back
 
 =cut
 
 sub AddIssue {
-    my ( $borrower, $barcode, $datedue, $cancelreserve, $issuedate ) = @_;
+    my ( $borrower, $barcode, $datedue, $cancelreserve, $issuedate, $sipmode) = @_;
     my $dbh = C4::Context->dbh;
        my $barcodecheck=CheckValidBarcode($barcode);
 
     # $issuedate defaults to today.
     if ( ! defined $issuedate ) {
         $issuedate = strftime( "%Y-%m-%d", localtime );
+        # TODO: for hourly circ, this will need to be a C4::Dates object
+        # and all calls to AddIssue including issuedate will need to pass a Dates object.
     }
        if ($borrower and $barcode and $barcodecheck ne '0'){
                # find which item we issue
                my $item = GetItem('', $barcode) or return undef;       # if we don't get an Item, abort.
-               my $branch;
-               # Get which branchcode we need
-               if (C4::Context->preference('CircControl') eq 'PickupLibrary'){
-                       $branch = C4::Context->userenv->{'branch'}; 
-               }
-               elsif (C4::Context->preference('CircControl') eq 'PatronLibrary'){
-                       $branch = $borrower->{'branchcode'}; 
-               }
-               else {
-                       # items home library
-                       $branch = $item->{'homebranch'};
-               }
+               my $branch = (C4::Context->preference('CircControl') eq 'PickupLibrary') ? C4::Context->userenv->{'branch'} :
+                     (C4::Context->preference('CircControl') eq 'PatronLibrary') ? $borrower->{'branchcode'}        : 
+                     $item->{'homebranch'};     # fallback to item's homebranch
                
                # get actual issuing if there is one
                my $actualissue = GetItemIssue( $item->{itemnumber});
@@ -879,15 +921,14 @@ sub AddIssue {
                #
                # check if we just renew the issue.
                #
-               if ( $actualissue->{borrowernumber} eq $borrower->{'borrowernumber'} ) {
-                       AddRenewal(
+               if ($actualissue->{borrowernumber} eq $borrower->{'borrowernumber'}) {
+                       $datedue = AddRenewal(
                                $borrower->{'borrowernumber'},
                                $item->{'itemnumber'},
                                $branch,
                                $datedue,
-                                   $issuedate,
+                $issuedate, # here interpreted as the renewal date
                        );
-
                }
                else {
         # it's NOT a renewal
@@ -906,28 +947,23 @@ sub AddIssue {
                        if ($restype) {
                                my $resbor = $res->{'borrowernumber'};
                                if ( $resbor eq $borrower->{'borrowernumber'} ) {
-
                                        # The item is reserved by the current patron
                                        ModReserveFill($res);
                                }
                                elsif ( $restype eq "Waiting" ) {
-
                                        # warn "Waiting";
                                        # The item is on reserve and waiting, but has been
                                        # reserved by some other patron.
                                }
                                elsif ( $restype eq "Reserved" ) {
-
                                        # warn "Reserved";
                                        # The item is reserved by someone else.
                                        if ($cancelreserve) { # cancel reserves on this item
-                                               CancelReserve( 0, $res->{'itemnumber'},
-                                                       $res->{'borrowernumber'} );
+                                               CancelReserve(0, $res->{'itemnumber'}, $res->{'borrowernumber'});
                                        }
                                }
                                if ($cancelreserve) {
-                                       CancelReserve( $res->{'biblionumber'}, 0,
-                    $res->{'borrowernumber'} );
+                                       CancelReserve($res->{'biblionumber'}, 0, $res->{'borrowernumber'});
                                }
                                else {
                                        # set waiting reserve to first in reserve queue as book isn't waiting now
@@ -942,8 +978,8 @@ sub AddIssue {
                        # Starting process for transfer job (checking transfert and validate it if we have one)
             my ($datesent) = GetTransfers($item->{'itemnumber'});
             if ($datesent) {
-        #      updating line of branchtranfert to finish it, and changing the to branch value, implement a comment for lisibility of this case (maybe for stats ....)
-            my $sth =
+        #      updating line of branchtranfert to finish it, and changing the to branch value, implement a comment for visibility of this case (maybe for stats ....)
+                my $sth =
                     $dbh->prepare(
                     "UPDATE branchtransfers 
                         SET datearrived = now(),
@@ -951,8 +987,7 @@ sub AddIssue {
                         comments = 'Forced branchtransfer'
                     WHERE itemnumber= ? AND datearrived IS NULL"
                     );
-                    $sth->execute(C4::Context->userenv->{'branch'},$item->{'itemnumber'});
-                    $sth->finish;
+                $sth->execute(C4::Context->userenv->{'branch'},$item->{'itemnumber'});
             }
 
         # Record in the database the fact that the book was issued.
@@ -962,36 +997,29 @@ sub AddIssue {
                     (borrowernumber, itemnumber,issuedate, date_due, branchcode)
                 VALUES (?,?,?,?,?)"
           );
-        my $dateduef;
-        if ($datedue) {
-            $dateduef = $datedue;
-        } else {
+        unless ($datedue) {
             my $itype = ( C4::Context->preference('item-level_itypes') ) ? $biblio->{'itype'} : $biblio->{'itemtype'};
             my $loanlength = GetLoanLength( $borrower->{'categorycode'}, $itype, $branch );
-            $dateduef = CalcDateDue( C4::Dates->new( $issuedate, 'iso' ), $loanlength, $branch );
+            $datedue = CalcDateDue( C4::Dates->new( $issuedate, 'iso' ), $loanlength, $branch, $borrower );
 
-            # if ReturnBeforeExpiry ON the datedue can't be after borrower expirydate
-            if ( C4::Context->preference('ReturnBeforeExpiry') && $dateduef->output('iso') gt $borrower->{dateexpiry} ) {
-                $dateduef = C4::Dates->new( $borrower->{dateexpiry}, 'iso' );
-            }
         }
-                        $sth->execute(
-                            $borrower->{'borrowernumber'},      # borrowernumber
-                            $item->{'itemnumber'},              # itemnumber
-                            $issuedate,                         # issuedate
-                            $dateduef->output('iso'),           # date_due
-                            C4::Context->userenv->{'branch'}    # branchcode
-                        );
+        $sth->execute(
+            $borrower->{'borrowernumber'},      # borrowernumber
+            $item->{'itemnumber'},              # itemnumber
+            $issuedate,                         # issuedate
+            $datedue->output('iso'),            # date_due
+            C4::Context->userenv->{'branch'}    # branchcode
+        );
         $sth->finish;
         $item->{'issues'}++;
         ModItem({ issues           => $item->{'issues'},
                   holdingbranch    => C4::Context->userenv->{'branch'},
                   itemlost         => 0,
                   datelastborrowed => C4::Dates->new()->output('iso'),
-                  onloan           => $dateduef->output('iso'),
+                  onloan           => $datedue->output('iso'),
                 }, $item->{'biblionumber'}, $item->{'itemnumber'});
         ModDateLastSeen( $item->{'itemnumber'} );
-        
+
         # If it costs to borrow this book, charge it to the patron's account.
         my ( $charge, $itemtype ) = GetIssuingCharges(
             $item->{'itemnumber'},
@@ -1008,41 +1036,35 @@ sub AddIssue {
         # Record the fact that this book was issued.
         &UpdateStats(
             C4::Context->userenv->{'branch'},
-            'issue',                        $charge,
-            '',                             $item->{'itemnumber'},
+            'issue', $charge,
+            ($sipmode ? "SIP-$sipmode" : ''), $item->{'itemnumber'},
             $item->{'itype'}, $borrower->{'borrowernumber'}
         );
+
+        # Send a checkout slip.
+        my $circulation_alert = 'C4::ItemCirculationAlertPreference';
+        my %conditions = (
+            branchcode   => $branch,
+            categorycode => $borrower->{categorycode},
+            item_type    => $item->{itype},
+            notification => 'CHECKOUT',
+        );
+        if ($circulation_alert->is_enabled_for(\%conditions)) {
+            SendCirculationAlert({
+                type     => 'CHECKOUT',
+                item     => $item,
+                borrower => $borrower,
+                branch   => $branch,
+            });
+        }
     }
-    
+
     logaction("CIRCULATION", "ISSUE", $borrower->{'borrowernumber'}, $biblio->{'biblionumber'}) 
         if C4::Context->preference("IssueLog");
-    return ($datedue);
   }
+  return ($datedue);   # not necessarily the same as when it came in!
 }
 
-=head2 ForceIssue
-
-ForceIssue()
-
-Issues an item to a member, ignoring any problems that would normally dissallow the issue.
-
-=cut
-
-sub ForceIssue {
-  my ( $borrowernumber, $itemnumber, $date_due, $branchcode, $date ) = @_;
-warn "ForceIssue( $borrowernumber, $itemnumber, $date_due, $branchcode, $date );";
-  my $dbh = C4::Context->dbh;
-  my $sth = $dbh->prepare( "INSERT INTO `issues` ( `borrowernumber`, `itemnumber`, `date_due`, `branchcode`, `issuingbranch`, `returndate`, `lastreneweddate`, `return`,  `renewals`, `timestamp`, `issuedate` )
-                            VALUES ( ?, ?, ?, ?, ?, NULL, NULL, NULL, NULL, NOW(), ? )" );
-  $sth->execute( $borrowernumber, $itemnumber, $date_due, $branchcode, $branchcode, $date );
-  $sth->finish();
-
-  my $item = GetBiblioFromItemNumber( $itemnumber );
-
-  UpdateStats( $branchcode, 'issue', undef, undef, $itemnumber, $item->{ 'itemtype' }, $borrowernumber );
-}
-
-
 =head2 GetLoanLength
 
 Get loan length for an itemtype, a borrower type and a branch
@@ -1247,6 +1269,70 @@ sub GetBranchBorrowerCircRule {
     };
 }
 
+=head2 GetBranchItemRule
+
+=over 4
+
+my $branch_item_rule = GetBranchItemRule($branchcode, $itemtype);
+
+=back
+
+Retrieves circulation rule attributes that apply to the given
+branch and item type, regardless of patron category.
+
+The return value is a hashref containing the following key:
+
+holdallowed => Hold policy for this branch and itemtype. Possible values:
+  0: No holds allowed.
+  1: Holds allowed only by patrons that have the same homebranch as the item.
+  2: Holds allowed from any patron.
+
+This searches branchitemrules in the following order:
+
+  * Same branchcode and itemtype
+  * Same branchcode, itemtype '*'
+  * branchcode '*', same itemtype
+  * branchcode and itemtype '*'
+
+Neither C<$branchcode> nor C<$categorycode> should be '*'.
+
+=cut
+
+sub GetBranchItemRule {
+    my ( $branchcode, $itemtype ) = @_;
+    my $dbh = C4::Context->dbh();
+    my $result = {};
+
+    my @attempts = (
+        ['SELECT holdallowed
+            FROM branch_item_rules
+            WHERE branchcode = ?
+              AND itemtype = ?', $branchcode, $itemtype],
+        ['SELECT holdallowed
+            FROM default_branch_circ_rules
+            WHERE branchcode = ?', $branchcode],
+        ['SELECT holdallowed
+            FROM default_branch_item_rules
+            WHERE itemtype = ?', $itemtype],
+        ['SELECT holdallowed
+            FROM default_circ_rules'],
+    );
+
+    foreach my $attempt (@attempts) {
+        my ($query, @bind_params) = @{$attempt};
+
+        # Since branch/category and branch/itemtype use the same per-branch
+        # defaults tables, we have to check that the key we want is set, not
+        # just that a row was returned
+        return $result if ( defined( $result->{'holdallowed'} = $dbh->selectrow_array( $query, {}, @bind_params ) ) );
+    }
+    
+    # built-in default circulation rule
+    return {
+        holdallowed => 2,
+    };
+}
+
 =head2 AddReturn
 
 ($doreturn, $messages, $iteminformation, $borrower) =
@@ -1336,6 +1422,7 @@ sub AddReturn {
             my $curr_iteminfo = GetItem($iteminformation->{'itemnumber'});
             $iteminformation->{'homebranch'} = $curr_iteminfo->{'homebranch'};
             $iteminformation->{'holdingbranch'} = $curr_iteminfo->{'holdingbranch'};
+            $iteminformation->{'itemlost'} = $curr_iteminfo->{'itemlost'};
             $doreturn = 0;
         }
     
@@ -1382,22 +1469,23 @@ sub AddReturn {
                        }
             MarkIssueReturned($borrower->{'borrowernumber'}, $iteminformation->{'itemnumber'},$circControlBranch);
             $messages->{'WasReturned'} = 1;    # FIXME is the "= 1" right?
-        }
-    
-    # continue to deal with returns cases, but not only if we have an issue
+
     
-        # the holdingbranch is updated if the document is returned in an other location .
-        if ( $iteminformation->{'holdingbranch'} ne C4::Context->userenv->{'branch'} ) {
-                       UpdateHoldingbranch(C4::Context->userenv->{'branch'},$iteminformation->{'itemnumber'}); 
-                       #               reload iteminformation holdingbranch with the userenv value
-                       $iteminformation->{'holdingbranch'} = C4::Context->userenv->{'branch'};
+            # continue to deal with returns cases, but not only if we have an issue
+        
+            # the holdingbranch is updated if the document is returned in an other location .
+            if ( $iteminformation->{'holdingbranch'} ne C4::Context->userenv->{'branch'} ) {
+                           UpdateHoldingbranch(C4::Context->userenv->{'branch'},$iteminformation->{'itemnumber'});
+                           #           reload iteminformation holdingbranch with the userenv value
+                           $iteminformation->{'holdingbranch'} = C4::Context->userenv->{'branch'};
+            }
+            ModDateLastSeen( $iteminformation->{'itemnumber'} );
+            ModItem({ onloan => undef }, $biblio->{'biblionumber'}, $iteminformation->{'itemnumber'});
+          
+                       if ($iteminformation->{borrowernumber}){
+                           ($borrower) = C4::Members::GetMemberDetails( $iteminformation->{borrowernumber}, 0 );
+            }
         }
-        ModDateLastSeen( $iteminformation->{'itemnumber'} );
-        ModItem({ onloan => undef }, $biblio->{'biblionumber'}, $iteminformation->{'itemnumber'});
-                   
-                   if ($iteminformation->{borrowernumber}){
-                         ($borrower) = C4::Members::GetMemberDetails( $iteminformation->{borrowernumber}, 0 );
-        }       
         # fix up the accounts.....
         if ( $iteminformation->{'itemlost'} ) {
             $messages->{'WasLost'} = 1;
@@ -1454,6 +1542,23 @@ sub AddReturn {
             $biblio->{'itemtype'},
             $borrower->{'borrowernumber'}
         );
+
+        # Send a check-in slip.
+        my $circulation_alert = 'C4::ItemCirculationAlertPreference';
+        my %conditions = (
+            branchcode   => $branch,
+            categorycode => $borrower->{categorycode},
+            item_type    => $iteminformation->{itype},
+            notification => 'CHECKIN',
+        );
+        if ($doreturn && $circulation_alert->is_enabled_for(\%conditions)) {
+            SendCirculationAlert({
+                type     => 'CHECKIN',
+                item     => $iteminformation,
+                borrower => $borrower,
+                branch   => $branch,
+            });
+        }
         
         logaction("CIRCULATION", "RETURN", $iteminformation->{borrowernumber}, $iteminformation->{'biblionumber'}) 
             if C4::Context->preference("ReturnLog");
@@ -1461,10 +1566,15 @@ sub AddReturn {
         #adding message if holdingbranch is non equal a userenv branch to return the document to homebranch
         #we check, if we don't have reserv or transfert for this document, if not, return it to homebranch .
         
-        if ( ($iteminformation->{'holdingbranch'} ne $iteminformation->{'homebranch'}) and not $messages->{'WrongTransfer'} and ($validTransfert ne 1) and ($reserveDone ne 1) ){
+        if ($doreturn and ($branch ne $iteminformation->{'homebranch'}) and not $messages->{'WrongTransfer'} and ($validTransfert ne 1) and ($reserveDone ne 1) ){
                        if (C4::Context->preference("AutomaticItemReturn") == 1) {
                                ModItemTransfer($iteminformation->{'itemnumber'}, C4::Context->userenv->{'branch'}, $iteminformation->{'homebranch'});
                                $messages->{'WasTransfered'} = 1;
+                       } elsif ( C4::Context->preference("UseBranchTransferLimits") == 1 
+                                       && ! IsBranchTransferAllowed( $branch, $iteminformation->{'homebranch'}, $iteminformation->{ C4::Context->preference("BranchTransferLimitsType") } )
+                               ) {
+                               ModItemTransfer($iteminformation->{'itemnumber'}, C4::Context->userenv->{'branch'}, $iteminformation->{'homebranch'});
+                                $messages->{'WasTransfered'} = 1;
                        }
                        else {
                                $messages->{'NeedsTransfer'} = 1;
@@ -1474,51 +1584,6 @@ sub AddReturn {
     return ( $doreturn, $messages, $iteminformation, $borrower );
 }
 
-=head2 ForceReturn
-
-ForceReturn( $barcode, $date, $branchcode );
-
-Returns an item is if it were returned on C<$date>.
-
-This function is non-interactive and does not check for reserves.
-
-C<$barcode> is the barcode of the item being returned.
-
-C<$date> is the date of the actual return, in the format YYYY-MM-DD.
-
-C<$branchcode> is the branchcode for the library the item was returned to.
-
-=cut
-
-sub ForceReturn {
-  my ( $barcode, $date, $branchcode ) = @_;
-  my $dbh = C4::Context->dbh;
-    
-  my $item = GetBiblioFromItemNumber( undef, $barcode );
-      
-  ## FIXME: Is there a way to get the borrower of an item through the Koha API?
-  my $sth=$dbh->prepare( "SELECT borrowernumber FROM issues WHERE itemnumber = ? AND returndate IS NULL");
-  $sth->execute( $item->{'itemnumber'} );
-  my ( $borrowernumber ) = $sth->fetchrow;
-  $sth->finish();
-                
-  ## Move the issue from issues to old_issues
-  $sth = $dbh->prepare( "INSERT INTO old_issues ( SELECT * FROM issues WHERE itemnumber = ? AND returndate IS NULL )" );
-  $sth->execute( $item->{'itemnumber'} );
-  $sth->finish();
-  ## Delete the row in issues
-  $sth = $dbh->prepare( "DELETE FROM issues WHERE itemnumber = ? AND returndate IS NULL" );
-  $sth->execute( $item->{'itemnumber'} );
-  $sth->finish();
-  ## Now set the returndate
-  $sth = $dbh->prepare( 'UPDATE old_issues SET returndate = ? WHERE itemnumber = ? AND returndate IS NULL' );
-  $sth->execute( $date, $item->{'itemnumber'} );
-  $sth->finish();
-                                          
-  UpdateStats( $branchcode, 'return', my $amount, my $other, $item->{ 'itemnumber' }, $item->{ 'itemtype' }, $borrowernumber );
-}
-
-
 =head2 MarkIssueReturned
 
 =over 4
@@ -1871,7 +1936,7 @@ sub GetBiblioIssues {
             LEFT JOIN borrowers ON borrowers.borrowernumber = issues.borrowernumber
             LEFT JOIN items ON issues.itemnumber = items.itemnumber
             LEFT JOIN biblioitems ON items.itemnumber = biblioitems.biblioitemnumber
-            LEFT JOIN biblio ON biblio.biblionumber = items.biblioitemnumber
+            LEFT JOIN biblio ON biblio.biblionumber = items.biblionumber
         WHERE biblio.biblionumber = ?
         UNION ALL
         SELECT old_issues.*,items.barcode,biblio.biblionumber,biblio.title, biblio.author,borrowers.cardnumber,borrowers.surname,borrowers.firstname
@@ -1879,7 +1944,7 @@ sub GetBiblioIssues {
             LEFT JOIN borrowers ON borrowers.borrowernumber = old_issues.borrowernumber
             LEFT JOIN items ON old_issues.itemnumber = items.itemnumber
             LEFT JOIN biblioitems ON items.itemnumber = biblioitems.biblioitemnumber
-            LEFT JOIN biblio ON biblio.biblionumber = items.biblioitemnumber
+            LEFT JOIN biblio ON biblio.biblionumber = items.biblionumber
         WHERE biblio.biblionumber = ?
         ORDER BY timestamp
     ";
@@ -1929,7 +1994,7 @@ END_SQL
 
 =head2 CanBookBeRenewed
 
-($ok,$error) = &CanBookBeRenewed($borrowernumber, $itemnumber);
+($ok,$error) = &CanBookBeRenewed($borrowernumber, $itemnumber[, $override_limit]);
 
 Find out whether a borrowed item may be renewed.
 
@@ -1940,6 +2005,10 @@ has the item on loan.
 
 C<$itemnumber> is the number of the item to renew.
 
+C<$override_limit>, if supplied with a true value, causes
+the limit on the number of times that the loan can be renewed
+(as controlled by the item type) to be ignored.
+
 C<$CanBookBeRenewed> returns a true value iff the item may be renewed. The
 item must currently be on loan to the specified borrower; renewals
 must be allowed for the item's type; and the borrower must not have
@@ -1950,7 +2019,7 @@ already renewed the loan. $error will contain the reason the renewal can not pro
 sub CanBookBeRenewed {
 
     # check renewal status
-    my ( $borrowernumber, $itemnumber ) = @_;
+    my ( $borrowernumber, $itemnumber, $override_limit ) = @_;
     my $dbh       = C4::Context->dbh;
     my $renews    = 1;
     my $renewokay = 0;
@@ -1985,7 +2054,7 @@ sub CanBookBeRenewed {
         if ( my $data2 = $sth2->fetchrow_hashref ) {
             $renews = $data2->{'renewalsallowed'};
         }
-        if ( $renews && $renews > $data1->{'renewals'} ) {
+        if ( ( $renews && $renews > $data1->{'renewals'} ) || $override_limit ) {
             $renewokay = 1;
         }
         else {
@@ -2005,7 +2074,7 @@ sub CanBookBeRenewed {
 
 =head2 AddRenewal
 
-&AddRenewal($borrowernumber, $itemnumber, $branch, [$datedue], [$issuedate]);
+&AddRenewal($borrowernumber, $itemnumber, $branch, [$datedue], [$lastreneweddate]);
 
 Renews a loan.
 
@@ -2018,7 +2087,8 @@ C<$branch> is the library branch.  Defaults to the homebranch of the ITEM.
 
 C<$datedue> can be a C4::Dates object used to set the due date.
 
-C<$issuedate> can be a iso formatted date to use for the issuedate.
+C<$lastreneweddate> is an optional ISO-formatted date used to set issues.lastreneweddate.  If
+this parameter is not supplied, lastreneweddate is set to the current date.
 
 If C<$datedue> is the empty string, C<&AddRenewal> will calculate the due date automatically
 from the book's item type.
@@ -2032,20 +2102,10 @@ sub AddRenewal {
     my $biblio = GetBiblioFromItemNumber($itemnumber) or return undef;
     my $branch  = (@_) ? shift : $item->{homebranch};  # opac-renew doesn't send branch
     my $datedue = shift;
-        my $issuedate = shift;
-    # If the due date wasn't specified, calculate it by adding the
-    # book's loan length to today's date.
-    unless ($datedue && $datedue->output('iso')) {
-
-        my $borrower = C4::Members::GetMemberDetails( $borrowernumber, 0 ) or return undef;
-        my $loanlength = GetLoanLength(
-            $borrower->{'categorycode'},
-             (C4::Context->preference('item-level_itypes')) ? $biblio->{'itype'} : $biblio->{'itemtype'} ,
-                       $item->{homebranch}                     # item's homebranch determines loanlength OR do we want the branch specified by the AddRenewal argument?
-        );
-               #FIXME -- use circControl?
-               $datedue =  CalcDateDue(C4::Dates->new(),$loanlength,$branch);  # this branch is the transactional branch.
-                                                               # The question of whether to use item's homebranch calendar is open.
+    my $lastreneweddate = shift;
+    # $lastreneweddate defaults to today.
+    unless (defined $lastreneweddate) {
+        $lastreneweddate = strftime( "%Y-%m-%d", localtime );
     }
 
     my $dbh = C4::Context->dbh;
@@ -2059,19 +2119,39 @@ sub AddRenewal {
     my $issuedata = $sth->fetchrow_hashref;
     $sth->finish;
 
+    # If the due date wasn't specified, calculate it by adding the
+    # book's loan length to today's date or the current due date
+    # based on the value of the RenewalPeriodBase syspref.
+    unless ($datedue && $datedue->output('iso')) {
+
+        my $borrower = C4::Members::GetMemberDetails( $borrowernumber, 0 ) or return undef;
+        my $loanlength = GetLoanLength(
+            $borrower->{'categorycode'},
+             (C4::Context->preference('item-level_itypes')) ? $biblio->{'itype'} : $biblio->{'itemtype'} ,
+                       $item->{homebranch}     # item's homebranch determines loanlength OR do we want the branch specified by the AddRenewal argument?
+        );
+
+        $datedue = (C4::Context->preference('RenewalPeriodBase') eq 'date_due') ?
+                                        C4::Dates->new($issuedata->{date_due}, 'iso') :
+                                        C4::Dates->new();
+        #FIXME -- use circControl?
+        $datedue =  CalcDateDue($datedue,$loanlength,$branch,$borrower);    # this branch is the transactional branch.
+        # The question of whether to use item's homebranch calendar is open.
+    }
+
     # Update the issues record to have the new due date, and a new count
     # of how many times it has been renewed.
     my $renews = $issuedata->{'renewals'} + 1;
-    $sth = $dbh->prepare("UPDATE issues SET date_due = ?, renewals = ?, lastreneweddate = CURRENT_DATE, issuedate = ?
+    $sth = $dbh->prepare("UPDATE issues SET date_due = ?, renewals = ?, lastreneweddate = ?
                             WHERE borrowernumber=? 
                             AND itemnumber=?"
     );
-    $sth->execute( $datedue->output('iso'), $renews, $issuedate, $borrowernumber, $itemnumber );
+    $sth->execute( $datedue->output('iso'), $renews, $lastreneweddate, $borrowernumber, $itemnumber );
     $sth->finish;
 
     # Update the renewal count on the item, and tell zebra to reindex
     $renews = $biblio->{'renewals'} + 1;
-    ModItem({ renewals => $renews }, $biblio->{'biblionumber'}, $itemnumber);
+    ModItem({ renewals => $renews, onloan => $datedue->output('iso') }, $biblio->{'biblionumber'}, $itemnumber);
 
     # Charge a new rental fee, if applicable?
     my ( $charge, $type ) = GetIssuingCharges( $itemnumber, $borrowernumber );
@@ -2094,42 +2174,9 @@ sub AddRenewal {
     }
     # Log the renewal
     UpdateStats( $branch, 'renew', $charge, '', $itemnumber, $item->{itype}, $borrowernumber);
+       return $datedue;
 }
 
-
-=head2 ForceRenewal
-
-ForRenewal( $itemnumber, $date, $date_due );
-
-Renews an item for the given date. This function should only be used to update renewals that have occurred in the past.
-
-C<$itemnumber> is the itemnumber of the item being renewed.
-
-C<$date> is the date the renewal took place, in the format YYYY-MM-DD
-
-C<$date_due> is the date the item is now due to be returned, in the format YYYY-MM-DD
-
-=cut
-
-sub ForceRenewal {
-  my ( $itemnumber, $date, $date_due ) = @_;
-  my $dbh = C4::Context->dbh;
-
-  my $sth = $dbh->prepare("SELECT * FROM issues WHERE itemnumber = ? AND returndate IS NULL");
-  $sth->execute( $itemnumber );
-  my $issue = $sth->fetchrow_hashref();
-  $sth->finish();
-  
-
-  $sth = $dbh->prepare('UPDATE issues SET renewals = ?, lastreneweddate = ?, date_due = ? WHERE itemnumber = ? AND returndate IS NULL');
-  $sth->execute( $issue->{'renewals'} + 1, $date, $date_due, $itemnumber );
-  $sth->finish();
-  
-  my $item = GetBiblioFromItemNumber( $itemnumber );
-  UpdateStats( $issue->{'branchcode'}, 'renew', undef, undef, $itemnumber, $item->{ 'itemtype' }, $issue->{'borrowernumber'} );
-}
-
-
 sub GetRenewCount {
     # check renewal status
     my ($bornum,$itemno)=@_;
@@ -2269,7 +2316,6 @@ sub GetTransfers {
     return @row;
 }
 
-
 =head2 GetTransfersFromTo
 
 @results = GetTransfersFromTo($frombranch,$tobranch);
@@ -2344,6 +2390,77 @@ sub AnonymiseIssueHistory {
     return $rows_affected;
 }
 
+=head2 SendCirculationAlert
+
+Send out a C<check-in> or C<checkout> alert using the messaging system.
+
+B<Parameters>:
+
+=over 4
+
+=item type
+
+Valid values for this parameter are: C<CHECKIN> and C<CHECKOUT>.
+
+=item item
+
+Hashref of information about the item being checked in or out.
+
+=item borrower
+
+Hashref of information about the borrower of the item.
+
+=item branch
+
+The branchcode from where the checkout or check-in took place.
+
+=back
+
+B<Example>:
+
+    SendCirculationAlert({
+        type     => 'CHECKOUT',
+        item     => $item,
+        borrower => $borrower,
+        branch   => $branch,
+    });
+
+=cut
+
+sub SendCirculationAlert {
+    my ($opts) = @_;
+    my ($type, $item, $borrower, $branch) =
+        ($opts->{type}, $opts->{item}, $opts->{borrower}, $opts->{branch});
+    my %message_name = (
+        CHECKIN  => 'Item Check-in',
+        CHECKOUT => 'Item Checkout',
+    );
+    my $borrower_preferences = C4::Members::Messaging::GetMessagingPreferences({
+        borrowernumber => $borrower->{borrowernumber},
+        message_name   => $message_name{$type},
+    });
+    my $letter = C4::Letters::getletter('circulation', $type);
+    C4::Letters::parseletter($letter, 'biblio',      $item->{biblionumber});
+    C4::Letters::parseletter($letter, 'biblioitems', $item->{biblionumber});
+    C4::Letters::parseletter($letter, 'borrowers',   $borrower->{borrowernumber});
+    C4::Letters::parseletter($letter, 'branches',    $branch);
+    my @transports = @{ $borrower_preferences->{transports} };
+    # warn "no transports" unless @transports;
+    for (@transports) {
+        # warn "transport: $_";
+        my $message = C4::Message->find_last_message($borrower, $type, $_);
+        if (!$message) {
+            #warn "create new message";
+            C4::Message->enqueue($letter, $borrower, $_);
+        } else {
+            #warn "append to old message";
+            $message->append($letter);
+            $message->update;
+        }
+    }
+    $letter;
+}
+
 =head2 updateWrongTransfer
 
 $items = updateWrongTransfer($itemNumber,$borrowernumber,$waitingAtLibrary,$FromLibrary);
@@ -2393,17 +2510,32 @@ C<$loanlength>  = loan length prior to adjustment
 =cut
 
 sub CalcDateDue { 
-       my ($startdate,$loanlength,$branch) = @_;
+       my ($startdate,$loanlength,$branch,$borrower) = @_;
+       my $datedue;
+
        if(C4::Context->preference('useDaysMode') eq 'Days') {  # ignoring calendar
-               my $datedue = time + ($loanlength) * 86400;
+               my $timedue = time + ($loanlength) * 86400;
        #FIXME - assumes now even though we take a startdate 
-               my @datearr  = localtime($datedue);
-               return C4::Dates->new( sprintf("%04d-%02d-%02d", 1900 + $datearr[5], $datearr[4] + 1, $datearr[3]), 'iso');
+               my @datearr  = localtime($timedue);
+               $datedue = C4::Dates->new( sprintf("%04d-%02d-%02d", 1900 + $datearr[5], $datearr[4] + 1, $datearr[3]), 'iso');
        } else {
                my $calendar = C4::Calendar->new(  branchcode => $branch );
-               my $datedue = $calendar->addDate($startdate, $loanlength);
-               return $datedue;
+               $datedue = $calendar->addDate($startdate, $loanlength);
        }
+
+       # if ReturnBeforeExpiry ON the datedue can't be after borrower expirydate
+       if ( C4::Context->preference('ReturnBeforeExpiry') && $datedue->output('iso') gt $borrower->{dateexpiry} ) {
+           $datedue = C4::Dates->new( $borrower->{dateexpiry}, 'iso' );
+       }
+
+       # if ceilingDueDate ON the datedue can't be after the ceiling date
+       if ( C4::Context->preference('ceilingDueDate')
+            && ( C4::Context->preference('ceilingDueDate') =~ C4::Dates->regexp('syspref') )
+            && $datedue->output gt C4::Context->preference('ceilingDueDate') ) {
+           $datedue = C4::Dates->new( C4::Context->preference('ceilingDueDate') );
+       }
+
+       return $datedue;
 }
 
 =head2 CheckValidDatedue
@@ -2539,7 +2671,67 @@ $sth->finish;
 return $exist;
 }
 
-1;
+=head2 IsBranchTransferAllowed
+
+$allowed = IsBranchTransferAllowed( $toBranch, $fromBranch, $code );
+
+Code is either an itemtype or collection doe depending on the pref BranchTransferLimitsType
+
+=cut
+
+sub IsBranchTransferAllowed {
+       my ( $toBranch, $fromBranch, $code ) = @_;
+
+       if ( $toBranch eq $fromBranch ) { return 1; } ## Short circuit for speed.
+        
+       my $limitType = C4::Context->preference("BranchTransferLimitsType");   
+       my $dbh = C4::Context->dbh;
+            
+       my $sth = $dbh->prepare("SELECT * FROM branch_transfer_limits WHERE toBranch = ? AND fromBranch = ? AND $limitType = ?");
+       $sth->execute( $toBranch, $fromBranch, $code );
+       my $limit = $sth->fetchrow_hashref();
+                        
+       ## If a row is found, then that combination is not allowed, if no matching row is found, then the combination *is allowed*
+       if ( $limit->{'limitId'} ) {
+               return 0;
+       } else {
+               return 1;
+       }
+}                                                        
+
+=head2 CreateBranchTransferLimit
+
+CreateBranchTransferLimit( $toBranch, $fromBranch, $code );
+
+$code is either itemtype or collection code depending on what the pref BranchTransferLimitsType is set to.
+
+=cut
+
+sub CreateBranchTransferLimit {
+   my ( $toBranch, $fromBranch, $code ) = @_;
+
+   my $limitType = C4::Context->preference("BranchTransferLimitsType");
+   
+   my $dbh = C4::Context->dbh;
+   
+   my $sth = $dbh->prepare("INSERT INTO branch_transfer_limits ( $limitType, toBranch, fromBranch ) VALUES ( ?, ?, ? )");
+   $sth->execute( $code, $toBranch, $fromBranch );
+}
+
+=head2 DeleteBranchTransferLimits
+
+DeleteBranchTransferLimits();
+
+=cut
+
+sub DeleteBranchTransferLimits {
+   my $dbh = C4::Context->dbh;
+   my $sth = $dbh->prepare("TRUNCATE TABLE branch_transfer_limits");
+   $sth->execute();
+}
+
+
+  1;
 
 __END__