--- loncom/interface/spreadsheet/Spreadsheet.pm 2003/05/23 19:36:04 1.5
+++ loncom/interface/spreadsheet/Spreadsheet.pm 2003/11/11 14:17:20 1.29
@@ -1,5 +1,5 @@
#
-# $Id: Spreadsheet.pm,v 1.5 2003/05/23 19:36:04 matthew Exp $
+# $Id: Spreadsheet.pm,v 1.29 2003/11/11 14:17:20 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -48,6 +48,8 @@ Spreadsheet
package Apache::Spreadsheet;
use strict;
+#use warnings FATAL=>'all';
+#no warnings 'uninitialized';
use Apache::Constants qw(:common :http);
use Apache::lonnet;
use Safe;
@@ -57,6 +59,7 @@ use HTML::Entities();
use HTML::TokeParser;
use Spreadsheet::WriteExcel;
use Time::HiRes;
+use Apache::lonlocal;
##
## Package Variables
@@ -90,14 +93,17 @@ sub new {
type => $stype,
symb => $usymb,
errorlog => '',
- maxrow => '',
+ maxrow => 0,
cid => $ENV{'request.course.id'},
cnum => $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
cdom => $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
chome => $ENV{'course.'.$ENV{'request.course.id'}.'.home'},
coursedesc => $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
coursefilename => $ENV{'request.course.fn'},
- temporary => '',
+ #
+ # Flags
+ temporary => 0, # true if this sheet has been modified but not saved
+ new_rows => 0, # true if this sheet has new rows
#
# blackout is used to determine if any data needs to be hidden from the
# student.
@@ -142,24 +148,21 @@ sub filename {
if (@_) {
my ($newfilename) = @_;
if (! defined($newfilename) || $newfilename eq 'Default' ||
- $newfilename !~ /\w/ || $newfilename =~ /\W/) {
- my %tmphash = &Apache::lonnet::get('environment',
- ['spreadsheet_default_'.
- $self->{'type'}],
- $self->{'cdom'},
- $self->{'cnum'});
- my ($tmp) = keys(%tmphash);
- if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
- $newfilename=$tmphash{'spreadsheet_default_'.$self->{'type'}};
+ $newfilename !~ /\w/ || $newfilename eq '') {
+ my $key = 'course.'.$self->{'cid'}.'.spreadsheet_default_'.
+ $self->{'type'};
+ if (exists($ENV{$key}) && $ENV{$key} ne '') {
+ $newfilename = $ENV{$key};
+ } else {
+ $newfilename = 'default_'.$self->{'type'};
}
}
- if (! defined($newfilename) ||
- $newfilename !~ /\w/ ||
- $newfilename =~ /^\W*$/) {
- $newfilename = 'default.'.$self->{'type'};
- } else {
- my $regexp = '_'.$self->{'type'}.'$';
- if ($newfilename !~ /$regexp/) {
+ if ($newfilename !~ /\w/ || $newfilename =~ /^\W*$/) {
+ $newfilename = 'default_'.$self->{'type'};
+ }
+ if ($newfilename !~ /^default\.$self->{'type'}$/ ) {
+ if ($newfilename !~ /_$self->{'type'}$/) {
+ $newfilename =~ s/[\s_]*$//;
$newfilename .= '_'.$self->{'type'};
}
}
@@ -184,7 +187,7 @@ default spreadsheets.......!
sub make_default {
my $self = shift();
my $result = &Apache::lonnet::put('environment',
- {'spreadsheet_default_'.$self->{'type'} => $self->filename()},
+ {'spreadsheet_default_'.$self->{'type'} => $self->filename()},
$self->{'cdom'},$self->{'cnum'});
return $result if ($result ne 'ok');
my $symb = $self->{'symb'};
@@ -217,10 +220,28 @@ sub is_default {
if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
$default_filename = $tmphash{'spreadsheet_default_'.$self->{'type'}};
}
+ if ($default_filename =~ /^\s*$/) {
+ $default_filename = 'default_'.$self->{'type'};
+ }
return 1 if ($self->filename() eq $default_filename);
return 0;
}
+sub initialize {
+ # This method is here to remind you that it will be overridden by
+ # the descendents of the spreadsheet class.
+}
+
+sub clear_package {
+ # This method is here to remind you that it will be overridden by
+ # the descendents of the spreadsheet class.
+}
+
+sub cleanup {
+ my $self = shift();
+ $self->clear_package();
+}
+
sub initialize_spreadsheet_package {
&load_spreadsheet_expirationdates();
&clear_spreadsheet_definition_cache();
@@ -240,18 +261,28 @@ sub load_spreadsheet_expirationdates {
sub check_expiration_time {
my $self = shift;
my ($time)=@_;
- my ($key1,$key2,$key3,$key4);
+ return 0 if (! defined($time));
+ my ($key1,$key2,$key3,$key4,$key5);
+ # Description of keys
+ #
+ # key1: all sheets of this type have expired
+ # key2: all sheets of this type for this student
+ # key3: all sheets of this type in this map for this student
+ # key4: this assessment sheet for this student
+ # key5: this assessment sheet for all students
$key1 = '::'.$self->{'type'}.':';
$key2 = $self->{'name'}.':'.$self->{'domain'}.':'.$self->{'type'}.':';
$key3 = $key2.$self->{'container'} if (defined($self->{'container'}));
- $key4 = $key2.$self->{'usymb'} if (defined($self->{'usymb'}));
- foreach my $key ($key1,$key2,$key3,$key4) {
+ $key4 = $key2.$self->{'symb'} if (defined($self->{'symb'}));
+ $key5 = $key1.$self->{'symb'} if (defined($self->{'symb'}));
+ my $returnvalue = 1; # default to okay
+ foreach my $key ($key1,$key2,$key3,$key4,$key5) {
next if (! defined($key));
- if (exists($expiredates{$key}) &&$expiredates{$key} > $time) {
- return 0;
+ if (exists($expiredates{$key}) && $expiredates{$key} > $time) {
+ $returnvalue = 0; # need to recompute
}
}
- return 1;
+ return $returnvalue;
}
######################################################
@@ -269,18 +300,23 @@ Returns the safe space required by a Spr
=cut
######################################################
+{
+
+ my $safeeval;
+
sub initialize_safe_space {
- my $self = shift;
- my $safeeval = new Safe(shift);
- my $safehole = new Safe::Hole;
- $safeeval->permit("entereval");
- $safeeval->permit(":base_math");
- $safeeval->permit("sort");
- $safeeval->deny(":base_io");
- $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
- $safehole->wrap(\&mask,$safeeval,'&mask');
- $safeeval->share('$@');
- my $code=<<'ENDDEFS';
+ my $self = shift;
+ if (! defined($safeeval)) {
+ $safeeval = new Safe(shift);
+ my $safehole = new Safe::Hole;
+ $safeeval->permit("entereval");
+ $safeeval->permit(":base_math");
+ $safeeval->permit("sort");
+ $safeeval->deny(":base_io");
+ $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
+ $safehole->wrap(\&mask,$safeeval,'&mask');
+ $safeeval->share('$@');
+ my $code=<<'ENDDEFS';
# ---------------------------------------------------- Inside of the safe space
#
# f: formulas
@@ -345,7 +381,7 @@ returns the number of items in the range
#-------------------------------------------------------
sub NUM {
my $mask=&mask(@_);
- my $num= $#{@{grep(/$mask/,keys(%sheet_values))}}+1;
+ my $num= $#{@{grep(eval("/$mask/"),keys(%sheet_values))}}+1;
return $num;
}
@@ -362,7 +398,7 @@ sub BIN {
my ($low,$high,$lower,$upper)=@_;
my $mask=&mask($lower,$upper);
my $num=0;
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {
$num++;
}
@@ -384,7 +420,7 @@ returns the sum of items in the range.
sub SUM {
my $mask=&mask(@_);
my $sum=0;
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
$sum+=$sheet_values{$_};
}
return $sum;
@@ -405,7 +441,7 @@ sub MEAN {
my $mask=&mask(@_);
my $sum=0;
my $num=0;
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
$sum+=$sheet_values{$_};
$num++;
}
@@ -430,14 +466,14 @@ compute the standard deviation of the it
sub STDDEV {
my $mask=&mask(@_);
my $sum=0; my $num=0;
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
$sum+=$sheet_values{$_};
$num++;
}
unless ($num>1) { return undef; }
my $mean=$sum/$num;
$sum=0;
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
$sum+=($sheet_values{$_}-$mean)**2;
}
return sqrt($sum/($num-1));
@@ -457,7 +493,7 @@ compute the product of the items in the
sub PROD {
my $mask=&mask(@_);
my $prod=1;
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
$prod*=$sheet_values{$_};
}
return $prod;
@@ -477,7 +513,7 @@ compute the maximum of the items in the
sub MAX {
my $mask=&mask(@_);
my $max='-';
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
unless ($max) { $max=$sheet_values{$_}; }
if (($sheet_values{$_}>$max) || ($max eq '-')) {
$max=$sheet_values{$_};
@@ -500,7 +536,7 @@ compute the minimum of the items in the
sub MIN {
my $mask=&mask(@_);
my $min='-';
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
unless ($max) { $max=$sheet_values{$_}; }
if (($sheet_values{$_}<$min) || ($min eq '-')) {
$min=$sheet_values{$_};
@@ -525,7 +561,7 @@ sub SUMMAX {
my ($num,$lower,$upper)=@_;
my $mask=&mask($lower,$upper);
my @inside=();
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
push (@inside,$sheet_values{$_});
}
@inside=sort(@inside);
@@ -552,7 +588,7 @@ sub SUMMIN {
my ($num,$lower,$upper)=@_;
my $mask=&mask($lower,$upper);
my @inside=();
- foreach (grep /$mask/,keys(%sheet_values)) {
+ foreach (grep eval("/$mask/"),keys(%sheet_values)) {
$inside[$#inside+1]=$sheet_values{$_};
}
@inside=sort(@inside);
@@ -647,7 +683,8 @@ sub calc {
# ------------------------------------------- End of "Inside of the safe space"
ENDDEFS
- $safeeval->reval($code);
+ $safeeval->reval($code);
+ }
$self->{'safe'} = $safeeval;
$self->{'root'} = $self->{'safe'}->root();
#
@@ -661,6 +698,9 @@ ENDDEFS
$self->{'safe'}->reval($initstring);
return $self;
}
+
+}
+
######################################################
=pod
@@ -674,6 +714,17 @@ ENDDEFS
######################################################
+=pod
+
+=item &mask($lower,$upper)
+
+Inputs: $lower and $upper, cell names ("X12" or "a150") or globs ("X*").
+
+Returns: Regular expression matching spreadsheet cells that are within
+the rectangle defined by $lower and $upper. Due to the nature of the
+regular expression this result must be used inside an eval().
+
+=cut
######################################################
{
@@ -688,78 +739,62 @@ sub mask {
}
$upper = $lower if (! defined($upper));
#
- my ($la,$ld) = ($lower=~/([A-Za-z]|\*)(\d+|\*)/);
- my ($ua,$ud) = ($upper=~/([A-Za-z]|\*)(\d+|\*)/);
+ my ($la,$ld) = ($lower=~/([A-z]|\*)(\d+|\*)/);
+ my ($ua,$ud) = ($upper=~/([A-z]|\*)(\d+|\*)/);
#
my $alpha='';
my $num='';
#
+ # Do not put parenthases around $alpha.
+ # $num depends on the value in $1.
if (($la eq '*') || ($ua eq '*')) {
- $alpha='[A-Za-z]';
+ $alpha='[A-z]';
} else {
- if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
- ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
- $alpha='['.$la.'-'.$ua.']';
- } else {
- $alpha='['.$la.'-Za-'.$ua.']';
- }
- }
- if (($ld eq '*') || ($ud eq '*')) {
- $num='\d+';
+ if ($la gt $ua) {
+ my $tmp = $ua;
+ $ua = $la;
+ $la = $ua;
+ }
+ $alpha=qq/[$la-$ua]/;
+ }
+ if ($ld ne '*' && $ud ne '*') {
+ # Make sure $ld <= $ud
+ if ($ld > $ud) {
+ my $tmp = $ud;
+ $ud = $ld;
+ $ld = $tmp;
+ }
+ # Here we make a regular expression using some advanced regexp
+ # abilities.
+ # (\d+) will match the digits of the cell name and dump them in
+ # to $1
+ # (?(?{ ... code ...} pattern_if_true | pattern_if_false)) will
+ # choose pattern_if_true if { ... code ... } is true and
+ # pattern_if_false if { ... code ... } is false.
+ # In this case, pattern_if_true is empty. pattern_if_false is
+ # 'donotmatch' and will not match our cells because none of
+ # them end with donotmatch.
+ # Unfortunately, the use of this type of regular expression
+ # requires that each match be wrapped in an eval(). Search for
+ # $mask in this module for examples
+ $num = '(\d+)(?(?{$1>= '.$ld.' && $1<='.$ud.'})|donotmatch)';
} else {
- if (length($ld)!=length($ud)) {
- $num.='(';
- foreach ($ld=~m/\d/g) {
- $num.='['.$_.'-9]';
- }
- if (length($ud)-length($ld)>1) {
- $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
- }
- $num.='|';
- foreach ($ud=~m/\d/g) {
- $num.='[0-'.$_.']';
- }
- $num.=')';
- } else {
- my @lda=($ld=~m/\d/g);
- my @uda=($ud=~m/\d/g);
- my $i;
- my $j=0;
- my $notdone=1;
- for ($i=0;($i<=$#lda)&&($notdone);$i++) {
- if ($lda[$i]==$uda[$i]) {
- $num.=$lda[$i];
- $j=$i;
- } else {
- $notdone=0;
- }
- }
- if ($j<$#lda-1) {
- $num.='('.$lda[$j+1];
- for ($i=$j+2;$i<=$#lda;$i++) {
- $num.='['.$lda[$i].'-9]';
- }
- if ($uda[$j+1]-$lda[$j+1]>1) {
- $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
- ($#lda-$j-1).'}';
- }
- $num.='|'.$uda[$j+1];
- for ($i=$j+2;$i<=$#uda;$i++) {
- $num.='[0-'.$uda[$i].']';
- }
- $num.=')';
- } else {
- if ($lda[-1]!=$uda[-1]) {
- $num.='['.$lda[-1].'-'.$uda[-1].']';
- }
- }
- }
+ $num = '(\d+)';
}
- my $expression ='^'.$alpha.$num."\$";
+ my $expression = '^'.$alpha.$num.'$';
$memoizer{$key} = $expression;
return $expression;
}
+#
+# Debugging routine
+sub dump_memoized_values {
+ while (my ($key,$value) = each(%memoizer)) {
+ &Apache::lonnet::logthis('memoizer: '.$key.' = '.$value);
+ }
+ return;
+}
+
}
##
@@ -777,8 +812,8 @@ sub expandnamed {
my @vars=split(/\W+/,$formula);
my %values=();
foreach my $varname ( @vars ) {
- if ($varname=~/\D/) {
- $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
+ if ($varname=~/^(parameter|stores|timestamp)/) {
+ $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
$varname=~s/$var/\([\\w:\\- ]\+\)/g;
foreach (keys(%{$self->{'constants'}})) {
if ($_=~/$varname/) {
@@ -808,30 +843,32 @@ sub expandnamed {
# 4. If there is a collision, return 'bad parameter name error'
my $returnvalue = '';
my @matches = ();
+ my @values = ();
$#matches = -1;
study $expression;
- my $parameter;
- foreach $parameter (keys(%{$self->{'constants'}})) {
- push @matches,$parameter if ($parameter =~ /$expression/);
+ while (my($parameter,$value) = each(%{$self->{'constants'}})) {
+ next if ($parameter !~ /$expression/);
+ push(@matches,$parameter);
+ push(@values,$value);
}
if (scalar(@matches) == 0) {
- $returnvalue = 'unmatched parameter: '.$parameter;
+ $returnvalue = '""';#'"unmatched parameter: '.$parameter.'"';
} elsif (scalar(@matches) == 1) {
# why do we not do this lookup here, instead of delaying it?
- $returnvalue = '$c{\''.$matches[0].'\'}';
+ $returnvalue = $values[0];
} elsif (scalar(@matches) > 0) {
# more than one match. Look for a concise one
$returnvalue = "'non-unique parameter name : $expression'";
- foreach (@matches) {
- if (/^$expression$/) {
+ for (my $i=0; $i<=$#matches;$i++) {
+ if ($matches[$i] =~ /^$expression$/) {
# why do we not do this lookup here?
- $returnvalue = '$c{\''.$_.'\'}';
+ $returnvalue = $values[$i];
}
}
} else {
# There was a negative number of matches, which indicates
# something is wrong with reality. Better warn the user.
- $returnvalue = 'bizzare parameter: '.$parameter;
+ $returnvalue = '"bizzare parameter: '.$expression.'"';
}
return $returnvalue;
}
@@ -1125,6 +1162,7 @@ sub display {
} elsif ($outputmode eq 'csv') {
$self->outsheet_csv($r);
}
+ $self->cleanup();
return;
}
@@ -1133,13 +1171,15 @@ sub display {
############################################
sub html_export_row {
my $self = shift();
+ my ($color) = @_;
+ $color = '#CCCCFF' if (! defined($color));
my $allowed = &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'});
my $row_html;
my @rowdata = $self->get_row(0);
foreach my $cell (@rowdata) {
if ($cell->{'name'} =~ /^[A-Z]/) {
- $row_html .= '<td bgcolor="#CCCCFF">'.
- &html_editable_cell($cell,'#CCCCFF',$allowed).'</td>';
+ $row_html .= '<td bgcolor="'.$color.'">'.
+ &html_editable_cell($cell,$color,$allowed).'</td>';
} else {
$row_html .= '<td bgcolor="#DDCCFF">'.
&html_editable_cell($cell,'#DDCCFF',$allowed).'</td>';
@@ -1151,15 +1191,15 @@ sub html_export_row {
sub html_template_row {
my $self = shift();
my $allowed = &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'});
- my ($num_uneditable) = @_;
+ my ($num_uneditable,$importcolor) = @_;
my $row_html;
my @rowdata = $self->get_template_row();
my $count = 0;
for (my $i = 0; $i<=$#rowdata; $i++) {
my $cell = $rowdata[$i];
if ($i < $num_uneditable) {
- $row_html .= '<td bgcolor="#DDCCFF">'.
- &html_editable_cell($cell,'#DDCCFF',$allowed).'</td>';
+ $row_html .= '<td bgcolor="'.$importcolor.'">'.
+ &html_uneditable_cell($cell,'#FFDDDD',$allowed).'</td>';
} else {
$row_html .= '<td bgcolor="#EOFFDD">'.
&html_editable_cell($cell,'#EOFFDD',$allowed).'</td>';
@@ -1190,13 +1230,17 @@ sub html_editable_cell {
$value = &HTML::Entities::encode($value) if ($value !~/ /);
}
return $value if (! $allowed);
- # Make the formula safe for outputting
- $formula =~ s/\'/\"/g;
+ #
# The formula will be parsed by the browser twice before being
- # displayed to the user for editing.
- $formula = &HTML::Entities::encode(&HTML::Entities::encode($formula));
- # Escape newlines so they make it into the edit window
- $formula =~ s/\n/\\n/gs;
+ # displayed to the user for editing.
+ #
+ # The encoding string "^A-blah" is placed in []'s inside a regexp, so
+ # we specify the characters we want left alone by putting a '^' in front.
+ $formula = &HTML::Entities::encode($formula,'^A-z0-9 !#$%-;=?~');
+ # HTML::Entities::encode does not catch everything - we need '\' encoded
+ $formula =~ s/\\/&\#092/g;
+ # Escape it again - this time the only encodable character is '&'
+ $formula =~ s/\&/\&/g;
# Glue everything together
$result .= "<a href=\"javascript:celledit(\'".
$name."','".$formula."');\">".$value."</a>";
@@ -1212,14 +1256,19 @@ sub html_uneditable_cell {
sub html_row {
my $self = shift();
- my ($num_uneditable,$row) = @_;
+ my ($num_uneditable,$row,$exportcolor,$importcolor) = @_;
my $allowed = &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'});
my @rowdata = $self->get_row($row);
my $num_cols_output = 0;
my $row_html;
+ my $color = $importcolor;
+ if ($row == 0) {
+ $color = $exportcolor;
+ }
+ $color = '#FFDDDD' if (! defined($color));
foreach my $cell (@rowdata) {
if ($num_cols_output++ < $num_uneditable) {
- $row_html .= '<td bgcolor="#FFDDDD">';
+ $row_html .= '<td bgcolor="'.$color.'">';
$row_html .= &html_uneditable_cell($cell,'#FFDDDD');
} else {
$row_html .= '<td bgcolor="#EOFFDD">';
@@ -1234,7 +1283,7 @@ sub html_header {
my $self = shift;
return '' if (! $ENV{'request.role.adv'});
return "<table>\n".
- '<tr><th align="center">Output Format</th><tr>'."\n".
+ '<tr><th align="center">'.&mt('Output Format').'</th></tr>'."\n".
'<tr><td>'.&output_selector()."</td></tr>\n".
"</table>\n";
}
@@ -1249,13 +1298,13 @@ sub output_selector {
}
foreach (['html','HTML'],
['excel','Excel'],
- ['csv','Comma Seperated Values']) {
+ ['csv','Comma Separated Values']) {
my ($name,$description) = @{$_};
$output_selector.=qq{<option value="$name"};
if ($name eq $default) {
$output_selector .= ' selected';
}
- $output_selector .= ">$description</option>\n";
+ $output_selector .= ">".&mt($description)."</option>\n";
}
$output_selector .= "</select>\n";
return $output_selector;
@@ -1288,9 +1337,9 @@ sub create_excel_spreadsheet {
my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
if (! defined($workbook)) {
$r->log_error("Error creating excel spreadsheet $filename: $!");
- $r->print("Problems creating new Excel file. ".
+ $r->print(&mt("Problems creating new Excel file. ".
"This error has been logged. ".
- "Please alert your LON-CAPA administrator");
+ "Please alert your LON-CAPA administrator"));
return undef;
}
#
@@ -1307,7 +1356,8 @@ sub create_excel_spreadsheet {
sub outsheet_excel {
my $self = shift;
my ($r) = @_;
- $r->print("<h2>Preparing Excel Spreadsheet</h2>");
+ my $connection = $r->connection();
+ $r->print("<h2>".&mt('Preparing Excel Spreadsheet')."</h2>");
#
# Create excel worksheet
my ($workbook,$filename) = $self->create_excel_spreadsheet($r);
@@ -1330,7 +1380,7 @@ sub outsheet_excel {
$self->excel_output_row($worksheet,0,$rows_output++,'Summary');
$rows_output++; # skip a line
#
- $self->excel_rows($worksheet,$cols_output,$rows_output);
+ $self->excel_rows($connection,$worksheet,$cols_output,$rows_output);
#
#
# Close the excel file
@@ -1342,6 +1392,66 @@ sub outsheet_excel {
return;
}
+#################################
+## CSV output routines ##
+#################################
+sub outsheet_csv {
+ my $self = shift;
+ my ($r) = @_;
+ my $connection = $r->connection();
+ my $csvdata = '';
+ my @Values;
+ #
+ # Open the csv file
+ my $filename = '/prtspool/'.
+ $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
+ time.'_'.rand(1000000000).'.csv';
+ my $file;
+ unless ($file = Apache::File->new('>'.'/home/httpd'.$filename)) {
+ $r->log_error("Couldn't open $filename for output $!");
+ $r->print(&mt("Problems occured in writing the csv file. ".
+ "This error has been logged. ".
+ "Please alert your LON-CAPA administrator."));
+ $r->print("<pre>\n".$csvdata."</pre>\n");
+ return 0;
+ }
+ #
+ # Output the title information
+ foreach my $value ($self->get_title()) {
+ print $file "'".&Apache::loncommon::csv_translate($value)."'\n";
+ }
+ #
+ # Output the body of the spreadsheet
+ $self->csv_rows($connection,$file);
+ #
+ # Close the csv file
+ close($file);
+ $r->print('<br /><br />'.
+ '<a href="'.$filename.'">'.&mt('Your CSV spreadsheet.').'</a>'."\n");
+ #
+ return 1;
+}
+
+sub csv_output_row {
+ my $self = shift;
+ my ($filehandle,$rownum,@prepend) = @_;
+ #
+ my @rowdata = ();
+ if (defined($rownum)) {
+ @rowdata = $self->get_row($rownum);
+ }
+ my @output = ();
+ foreach my $cell (@prepend,@rowdata) {
+ my $value = $cell;
+ $value = $cell->{'value'} if (ref($value));
+ $value =~ s/\ / /gi;
+ $value = "'".$value."'";
+ push (@output,$value);
+ }
+ print $filehandle join(',',@output )."\n";
+ return;
+}
+
############################################
## XML output routines ##
############################################
@@ -1408,16 +1518,33 @@ sub clear_spreadsheet_definition_cache {
undef(%spreadsheets);
}
-sub load {
+sub load_system_default_sheet {
my $self = shift;
my $includedir = $Apache::lonnet::perlvar{'lonIncludes'};
+ # load in the default defined spreadsheet
+ my $sheetxml='';
+ my $fh;
+ if ($fh=Apache::File->new($includedir.'/default_'.$self->{'type'})) {
+ $sheetxml=join('',<$fh>);
+ $fh->close();
+ } else {
+ # $sheetxml='<field row="0" col="A">"Error"</field>';
+ $sheetxml='<field row="0" col="A"></field>';
+ }
+ $self->filename('default_');
+ my ($formulas,undef) = &parse_sheet(\$sheetxml);
+ return $formulas;
+}
+
+sub load {
+ my $self = shift;
#
my $stype = $self->{'type'};
my $cnum = $self->{'cnum'};
my $cdom = $self->{'cdom'};
my $chome = $self->{'chome'};
- my $filename = $self->{'filename'};
#
+ my $filename = $self->filename();
my $cachekey = join('_',($cnum,$cdom,$stype,$filename));
#
# see if sheet is cached
@@ -1426,19 +1553,9 @@ sub load {
$formulas = $spreadsheets{$cachekey}->{'formulas'};
} else {
# Not cached, need to read
- if (! defined($self->filename())) {
- # load in the default defined spreadsheet
- my $sheetxml='';
- my $fh;
- if ($fh=Apache::File->new($includedir.'/default.'.$filename)) {
- $sheetxml=join('',<$fh>);
- $fh->close();
- } else {
- # $sheetxml='<field row="0" col="A">"Error"</field>';
- $sheetxml='<field row="0" col="A"></field>';
- }
- ($formulas,undef) = &parse_sheet(\$sheetxml);
- } elsif($self->filename() =~ /^\/*\.spreadsheet$/) {
+ if (! defined($filename)) {
+ $formulas = $self->load_system_default_sheet();
+ } elsif($self->filename() =~ /^\/res\/.*\.spreadsheet$/) {
# Load a spreadsheet definition file
my $sheetxml=&Apache::lonnet::getfile
(&Apache::lonnet::filelocation('',$filename));
@@ -1447,31 +1564,27 @@ sub load {
.$self->filename().'"</field>';
}
($formulas,undef) = &parse_sheet(\$sheetxml);
+ # Get just the filename and set the sheets filename
+ my ($newfilename) = ($filename =~ /\/([^\/]*)\.spreadsheet$/);
+ if ($self->is_default()) {
+ $self->filename($newfilename);
+ $self->make_default();
+ } else {
+ $self->filename($newfilename);
+ }
} else {
# Load the spreadsheet definition file from the save file
- my %tmphash = &Apache::lonnet::dump($self->filename(),$cdom,$cnum);
+ my %tmphash = &Apache::lonnet::dump($filename,$cdom,$cnum);
my ($tmp) = keys(%tmphash);
if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
while (my ($cell,$formula) = each(%tmphash)) {
$formulas->{$cell}=$formula;
}
} else {
- # Unable to grab the specified spreadsheet,
- # so we get the default ones instead.
- $filename = 'default.'.$stype;
- $self->filename($filename);
- my $sheetxml;
- if (my $fh=Apache::File->new($includedir.'/'.$filename)) {
- $sheetxml = join('',<$fh>);
- $fh->close();
- } else {
- $sheetxml='<field row="0" col="A">'.
- '"Unable to load spreadsheet"</field>';
- }
- ($formulas,undef) = &parse_sheet(\$sheetxml);
- $self->formulas($formulas);
+ $formulas = $self->load_system_default_sheet();
}
}
+ $filename=$self->filename(); # filename may have changed
$cachekey = join('_',($cnum,$cdom,$stype,$filename));
%{$spreadsheets{$cachekey}->{'formulas'}} = %{$formulas};
}
@@ -1483,13 +1596,23 @@ sub load {
sub set_row_sources {
my $self = shift;
while (my ($cell,$value) = each(%{$self->{'formulas'}})) {
- next if ($cell !~ /^A(\d+)/ && $1 > 0);
+ next if ($cell !~ /^A(\d+)/ || $1 < 1);
my $row = $1;
$self->{'row_source'}->{$row} = $value;
}
return;
}
+sub set_row_numbers {
+ my $self = shift;
+ while (my ($cell,$value) = each(%{$self->{'formulas'}})) {
+ next if ($cell !~ /^A(\d+)$/);
+ next if (! defined($value));
+ $self->{'row_numbers'}->{$value} = $1;
+ $self->{'maxrow'} = $1 if ($1 > $self->{'maxrow'});
+ }
+}
+
##
## exportrow is *not* used to get the export row from a computed sub-sheet.
##
@@ -1514,27 +1637,33 @@ sub save {
my $cnum = $self->{'cnum'};
my $cdom = $self->{'cdom'};
my $chome = $self->{'chome'};
- my $fn = $self->{'filename'};
+ my $filename = $self->{'filename'};
+ my $cachekey = join('_',($cnum,$cdom,$stype,$filename));
# Cache new sheet
- $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
+ %{$spreadsheets{$cachekey}->{'formulas'}}=%f;
# Write sheet
foreach (keys(%f)) {
delete($f{$_}) if ($f{$_} eq 'import');
}
- my $reply = &Apache::lonnet::put($fn,\%f,$cdom,$cnum);
+ my $reply = &Apache::lonnet::put($filename,\%f,$cdom,$cnum);
return $reply if ($reply ne 'ok');
$reply = &Apache::lonnet::put($stype.'_spreadsheets',
- {$fn => $ENV{'user.name'}.'@'.$ENV{'user.domain'}},
+ {$filename => $ENV{'user.name'}.'@'.$ENV{'user.domain'}},
$cdom,$cnum);
return $reply if ($reply ne 'ok');
if ($makedef) {
$reply = &Apache::lonnet::put('environment',
- {'spreadsheet_default_'.$stype => $fn },
+ {'spreadsheet_default_'.$stype => $filename },
$cdom,$cnum);
return $reply if ($reply ne 'ok');
}
if ($self->is_default()) {
- &Apache::lonnet::expirespread('','',$self->{'type'},'');
+ if ($self->{'type'} eq 'studentcalc') {
+ &Apache::lonnet::expirespread('','','studentcalc','');
+ } elsif ($self->{'type'} eq 'assesscalc') {
+ &Apache::lonnet::expirespread('','','assesscalc','');
+ &Apache::lonnet::expirespread('','','studentcalc','');
+ }
}
return $reply;
}
@@ -1545,14 +1674,14 @@ sub save {
sub save_tmp {
my $self = shift;
- my $fn=$ENV{'user.name'}.'_'.
- $ENV{'user.domain'}.'_spreadsheet_'.$self->{'usymb'}.'_'.
+ my $filename=$ENV{'user.name'}.'_'.
+ $ENV{'user.domain'}.'_spreadsheet_'.$self->{'symb'}.'_'.
$self->{'filename'};
- $fn=~s/\W/\_/g;
- $fn=$Apache::lonnet::tmpdir.$fn.'.tmp';
+ $filename=~s/\W/\_/g;
+ $filename=$Apache::lonnet::tmpdir.$filename.'.tmp';
$self->temporary(1);
my $fh;
- if ($fh=Apache::File->new('>'.$fn)) {
+ if ($fh=Apache::File->new('>'.$filename)) {
my %f = $self->formulas();
while( my ($cell,$formula) = each(%f)) {
next if ($formula eq 'import');
@@ -1566,7 +1695,7 @@ sub save_tmp {
sub load_tmp {
my $self = shift;
my $filename=$ENV{'user.name'}.'_'.
- $ENV{'user.domain'}.'_spreadsheet_'.$self->{'usymb'}.'_'.
+ $ENV{'user.domain'}.'_spreadsheet_'.$self->{'symb'}.'_'.
$self->{'filename'};
$filename=~s/\W/\_/g;
$filename=$Apache::lonnet::tmpdir.$filename.'.tmp';
@@ -1594,7 +1723,6 @@ sub temporary {
if (@_) {
($self->{'temporary'})= @_;
}
- $self->logthis('temporary = '.$self->{'temporary'});
return $self->{'temporary'};
}
@@ -1625,9 +1753,9 @@ sub othersheets {
$self->{'cdom'}, $self->{'cnum'});
my ($tmp) = keys(%results);
if ($tmp =~ /^(con_lost|error|no_such_host)/i ) {
- @alternatives = ('Default');
+ @alternatives = (&mt('Default'));
} else {
- @alternatives = sort (keys(%results));
+ @alternatives = (&mt('Default'), sort (keys(%results)));
}
return @alternatives;
}
@@ -1663,14 +1791,12 @@ sub get_template_row {
return @cols;
}
-sub set_row_numbers {
+sub need_to_save {
my $self = shift;
- my %f=$self->formulas();
- while (my ($cell,$value) = each(%{$self->{'formulas'}})) {
- next if ($cell !~ /^A(\d+)$/);
- next if (! defined($value));
- $self->{'row_numbers'}->{$value} = $1;
+ if ($self->{'new_rows'} && ! $self->temporary()) {
+ return 1;
}
+ return 0;
}
sub get_row_number_from_key {
@@ -1682,6 +1808,9 @@ sub get_row_number_from_key {
# may not be the key we need to save
$self->{'maxrow'}++;
$self->{'row_numbers'}->{$key} = $self->{'maxrow'};
+# $self->logthis('added row '.$self->{'row_numbers'}->{$key}.
+# ' for '.$key);
+ $self->{'new_rows'} = 1;
}
return $self->{'row_numbers'}->{$key};
}