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#
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# UserQuery
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#
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# Set up and record Queries requested fromthe user
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#
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# Interface
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# ---------
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# new(UserInterface) : A new query object with a specific interface
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# setparam(name,value) : set a parameter
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# setifundef(name,value) : only set param to value if undefined
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# getparam(name) : return value of named parameter
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# clearquery() : remove all queries to be asked
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# setquery($type,$parameter,@args) : register a query of type for $parameter
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# askuser() : Ask user registered queries
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# formatquery(args) : apply formatting information for display
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# of the query . args dependent on implemtation
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# query type etc.
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# interface() : Return the interface object for the query
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package ActiveDoc::UserQuery;
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require 5.001;
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sub new {
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my $class=shift;
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my $interface=shift;
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$self={};
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bless $self, $class;
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$self->{params}={};
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$self->{UserInterface}=$interface;
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return $self;
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}
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sub setparam {
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my $self=shift;
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my $name=shift;
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my $value=shift;
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$self->{params}{$name}=$value;
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}
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sub setifundef {
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my $self=shift;
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my $name=shift;
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my $value=shift;
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if ( ! defined $self->getparam($name) ) {
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$self->setparam($name, $value);
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}
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}
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sub getparam {
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my $self=shift;
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my $name=shift;
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return $self->{params}{$name};
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}
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sub clearquery {
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my $self=shift;
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undef %self->{querytype};
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undef %self->{queryvars};
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undef @{$self->{queries}};
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undef %{$self->{queryformat}};
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}
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sub setquery {
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my $self=shift;
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my $type=shift;
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my $name=shift;
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my $string=shift;
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my @vars=@_;
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push @{$self->{queries}},$name;
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$self->{querytype}{$name}=$type;
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$self->{querystring}{$name}=$string;
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for ( $i=0; $i<=$#vars; $i++ ) {
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$self->{queryvars}{$name}[$i]=$vars[$i];
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}
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}
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sub formatquery {
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my $self=shift;
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my $name=$self->{queries}[$#$self->{queries}];
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$self->{queryformat}{$name}= @_;
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}
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sub askuser {
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my $self=shift;
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my $string=shift;
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$self->{UserInterface}->startform();
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foreach $query ( @{$self->{queries}} ) {
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$self->{UserInterface}->runquery($self->{querytype}{$query},
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$query, $self->{querystring}{$query},
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$self->{queryvars}{$query}, $self->{queryformat}{$name});
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}
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$self->{UserInterface}->endform($self);
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}
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sub interface {
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my $self=shift;
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return $self->{UserInterface};
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}
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