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# Copyright 2005-2007 Interchange Development Group and others
#
# 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. See the LICENSE file for details.
#
# $Id: unique.oc,v 1.3 2007-03-30 23:40:48 pajamian Exp $
CodeDef unique OrderCheck 1
CodeDef unique Description Unique record
CodeDef unique Routine <<EOR
sub {
my ($ref, $name, $value, $code) = @_;
$code =~ s/(\w+)(:+(\w+))?\s*//;
my $tab = $1
or return (0, $name, errmsg("no table specified"));
my $col = $3;
my $msg = $code;
my $db = database_exists_ref($tab)
or do {
$msg = errmsg(
"Table %s doesn't exist",
$tab,
);
return(0, $name, $msg);
};
my $used;
if(! $col) {
$used = $db->record_exists($value);
}
else {
#::logDebug("Doing foreign key check, tab=$tab col=$col value=$value");
$used = $db->foreign($value, $col);
}
#::logDebug("Checking unique, tab=$tab col=$col, used=$used");
if(! $used) {
return (1, $name, '');
}
else {
$msg = errmsg(
"Key %s already exists in %s, try again.",
$value,
$tab,
) unless $msg;
return(0, $name, $msg);
}
}
EOR
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