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              use Modern::Perl;  | 
            
            
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              return { | 
            
            
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                  bug_number  => "33217",  | 
            
            
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                  description => "Add option to specify sorting for author links",  | 
            
            
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                  up          => sub { | 
            
            
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                      my ($args) = @_;  | 
            
            
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                      my ( $dbh, $out ) = @$args{qw(dbh out)}; | 
            
            
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               | 
            
            
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                      # Do you stuffs here  | 
            
            
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                      $dbh->do(  | 
            
            
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                          q{ | 
            
            
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                          INSERT IGNORE INTO systempreferences ( `variable`, `value`, `options`, `explanation`, `type` ) VALUES  | 
            
            
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                          ('AuthorLinkSortBy','default','call_number|pubdate|acqdate|title','Specify the default field used for sorting when click author links','Choice'), | 
            
            
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                          ('AuthorLinkSortOrder','asc','asc|dsc|az|za','Specify the default sort order for author links','Choice') | 
            
            
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                      }  | 
            
            
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                      );  | 
            
            
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                      say $out "Added new system preferences 'AuthorLinkSortBy' 'AuthorLinkSortOrder'";  | 
            
            
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                  },  | 
            
            
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              };  |