Sorting an array or hashes

[hok_si_la]

Good localtime monks,

I asked a question early last week concerning information extracting from a specific file format (Extracting information from file to Hash) and BrowserUK was good enough to point me in the right direction, however I am having an issue sorting my AoH. The error I am getting when running a command line trace is, "Can't use string ("1") as a HASH ref while "strict refs" in use at getCollections.pl line 164, <ARCFILE> line 10." I can reference and print the unsorted keys just fine, however the sorted AoH is empty. For instance $collectionData[$i]{'Missing'} contains a value however $sortedCollectionData[$i]{'Missing'} is undef.

Here is my file format:

CollectionId=>26154 Framecount=>6 Status=>SC Missing=>0 Modified=>01/2
+2/2012 22:12:09
CollectionId=>26155 Framecount=>6 Status=>I Missing=>4 Modified=>01/22
+/2012 22:12:20
CollectionId=>25000 Framecount=>6 Status=>SC Missing=>0 Modified=>01/2
+2/2012 22:13:07
CollectionId=>25002 Framecount=>6 Status=>I Missing=>5 Modified=>01/22
+/2012 22:13:14
CollectionId=>25009 Framecount=>6 Status=>I Missing=>5 Modified=>01/22
+/2012 22:13:19
CollectionId=>25309 Framecount=>6 Status=>I Missing=>5 Modified=>01/22
+/2012 22:13:25
CollectionId=>25349 Framecount=>6 Status=>I Missing=>5 Modified=>01/22
+/2012 22:13:31
CollectionId=>25318 Framecount=>6 Status=>I Missing=>5 Modified=>01/22
+/2012 22:13:37
CollectionId=>21318 Framecount=>6 Status=>I Missing=>5 Modified=>01/22
+/2012 22:13:43
CollectionId=>21342 Framecount=>6 Status=>I Missing=>5 Modified=>01/22
+/2012 22:13:56

Here is my sub:

sub printCollectionData {

  my $arcFile = shift;
  my $orderBy = shift;
  my (@collectionData, @sortedCollectionData);
  my $semaphore = $arcFile . '.lock';
  my ($longStatus, $rowStyle, $rowColor);  
    
  open(LOCKFILE, ">>$semaphore") or die "$semaphore: $!";
  flock(LOCKFILE, LOCK_EX) or die "flock() failed for $semaphore: $!";
  open (ARCFILE, "<$arcFile") or die "Failed to open $arcFile: $!";
   
  # Retrieve file information from arcFile as an array of hashes
  while( <ARCFILE> ) {
    my( $col, $cnt, $stat, $miss, $mod) = m[
        ^
        CollectionId \s* => \s* (\d+)? \s*
        Framecount \s* => \s* (\d+)? \s*
        Status     \s* => \s* (\w+)? \s*
        Missing    \s* => \s* ([\d,]+)? \s*
        Modified   \s* => \s* ([\d/]+\s[\d:]+)? \s*
        $

    ]x or warn "Bad format at line $.\n" and next;

    my( $modday, $modmon, $modyear, $modhrs, $modmin, $modsec ) = 
        $mod =~ m[(\d+)/(\d+)/(\d+) (\d+):(\d+):(\d+)]
        or warn "Bad date format in line $." and next;

    push @collectionData, {
        CollectionId => $col,
        Framecount => $cnt,
        Status => $stat,
        Missing => $miss,
        Modified => sprintf( "%4d/%02d/%02d %02d:%02d:%02d",
            $modyear, $modmon, $modday, $modhrs, $modmin, $modsec ),
    };
  }

  # Sort the collection according to orderBy param
  if($orderBy eq "collection") {
    @sortedCollectionData = sort {
    $collectionData[ $b ]{CollectionId} <=> $collectionData[ $a ]{Coll
+ectionId}
    ||
    $collectionData[ $b ]{Modified} cmp $collectionData[ $a ]{Modified
+}
    } 0 .. $#collectionData;
  }elsif($orderBy eq "framecount") {
    @sortedCollectionData = sort {
    $collectionData[ $b ]{Framecount} <=> $collectionData[ $a ]{Framec
+ount}
    ||
    $collectionData[ $b ]{Modified} cmp $collectionData[ $a ]{Modified
+}
    } 0 .. $#collectionData;
  }elsif($orderBy eq "status") {
    @sortedCollectionData = sort {
    $collectionData[ $a ]{Status} cmp $collectionData[ $b ]{Status}
    ||
    $collectionData[ $b ]{Modified} cmp $collectionData[ $a ]{Modified
+}
    } 0 .. $#collectionData;
  }elsif($orderBy eq "missing") {
    @sortedCollectionData = sort {
    $collectionData[ $b ]{Missing} <=> $collectionData[ $a ]{Missing}
    ||
    $collectionData[ $b ]{Modified} cmp $collectionData[ $a ]{Modified
+}
    } 0 .. $#collectionData;
  }else { 
    @sortedCollectionData = sort {
    $collectionData[ $b ]{Modified} cmp $collectionData[ $a ]{Modified
+}
    } 0 .. $#collectionData;
  }
 
  my $transactions = scalar(@collectionData);
  for (my $i=0; $i < $transactions; $i++)
  {
    if($sortedCollectionData[$i]{'Status'} eq "I") {
      $longStatus = "Incomplete";
    }elsif($sortedCollectionData[$i]{'Status'} eq "SI") {
      $longStatus = "Submitted Incomplete";
    }elsif($sortedCollectionData[$i]{'Status'} eq "C") {
      $longStatus = "Submitted";
    }else{
      $longStatus = "Submitted Complete";
    }
 
    if (($i%2) == 0){
      $rowStyle = "oddrow";
      $rowColor = "#e5e5e5";
    }
    else {
      $rowStyle = "evenrow";
      $rowColor = "#ffffff";
      
    }
        
print qq{
  <tr class=$rowStyle style=Cursor:hand onclick= \"location.href=\'get
+Collection.pl?id=$collectionData[$i]{'CollectionId'}\';\" onMouseOver
+=\"style.backgroundColor='#c5c5c5'\" onMouseOut=\"style.backgroundCol
+or='$rowColor'\">
    <th class=graycenter>$sortedCollectionData[$i]{'CollectionId'}</th
+>
    <th class=graycenter>$sortedCollectionData[$i]{'Framecount'}</th>
    <th class=graycenter>$longStatus</th>
    <th class=graycenter>$sortedCollectionData[$i]{'Missing'}</th>
    <th class=graycenter>$sortedCollectionData[$i]{'Modified'}</th>
  </tr>
  </div>
};
  }
}