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[usit-rt.git] / lib / RT / Shredder / Plugin / Base / Search.pm
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48
49package RT::Shredder::Plugin::Base::Search;
50
51use strict;
52use warnings FATAL => 'all';
53
54use base qw(RT::Shredder::Plugin::Base);
55
56=head1 NAME
57
58RT::Shredder::Plugin::Base - base class for Shredder plugins.
59
60=cut
61
62sub Type { return 'search' }
63
64=head1 ARGUMENTS
65
66Arguments which all plugins support.
67
68=head2 limit - unsigned integer
69
70Allow you to limit search results. B<< Default value is C<10> >>.
71
72=head1 METHODS
73
74=cut
75
76sub SupportArgs
77{
78 my %seen;
79 my @args = sort
80 grep $_ && !$seen{$_},
81 shift->SUPER::SupportArgs(@_),
82 qw(limit);
83 return @args;
84}
85
86sub TestArgs
87{
88 my $self = shift;
89 my %args = @_;
90 if( defined $args{'limit'} && $args{'limit'} ne '' ) {
91 my $limit = $args{'limit'};
92 $limit =~ s/[^0-9]//g;
93 unless( $args{'limit'} eq $limit ) {
94 return( 0, "'limit' should be an unsigned integer");
95 }
96 $args{'limit'} = $limit;
97 } else {
98 $args{'limit'} = 10;
99 }
100 return $self->SUPER::TestArgs( %args );
101}
102
103sub SetResolvers { return 1 }
104
105
106=head2 FetchNext $collection [, $init]
107
108Returns next object in collection as method L<RT::SearchBuilder/Next>, but
109doesn't stop on page boundaries.
110
111When method is called with true C<$init> arg it enables pages on collection
112and selects first page.
113
114Main purpose of this method is to avoid loading of whole collection into
115memory as RT does by default when pager is not used. This method init paging
116on the collection, but doesn't stop when reach page end.
117
118Example:
119
120 $plugin->FetchNext( $tickets, 'init' );
121 while( my $ticket = $plugin->FetchNext( $tickets ) ) {
122 ...
123 }
124
125=cut
126
127use constant PAGE_SIZE => 100;
128sub FetchNext {
129 my ($self, $objs, $init) = @_;
130 if ( $init ) {
131 $objs->RowsPerPage( PAGE_SIZE );
132 $objs->FirstPage;
133 return;
134 }
135
136 my $obj = $objs->Next;
137 return $obj if $obj;
138 $objs->NextPage;
139 return $objs->Next;
140}
141
1421;
143