loncom/metadata_database/LONCAPA/lonmetadata.pm - diff

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Diff for /loncom/metadata_database/LONCAPA/lonmetadata.pm between versions 1.19 and 1.25

version 1.19, 2007/01/19 14:23:46	version 1.25, 2007/12/07 22:31:08
Line 32 use strict;	Line 32 use strict;
use DBI;	use DBI;
use HTML::TokeParser;	use HTML::TokeParser;
use vars qw($Metadata_Table_Description $Portfolio_metadata_table_description	use vars qw($Metadata_Table_Description $Portfolio_metadata_table_description
$Portfolio_access_table_description $Fulltext_indicies $Portfolio_metadata_indices $Portfolio_access_indices $Portfolio_addedfields_table_description $Portfolio_addedfields_indices);	$Portfolio_access_table_description $Fulltext_indicies $Portfolio_metadata_indices $Portfolio_access_indices $Portfolio_addedfields_table_description $Portfolio_addedfields_indices $Allusers_table_description $Allusers_indices);

######################################################################	######################################################################
######################################################################	######################################################################
Line 247 $Portfolio_addedfields_indices = [qw/	Line 247 $Portfolio_addedfields_indices = [qw/
######################################################################	######################################################################
######################################################################	######################################################################

	$Allusers_table_description =
	[
	{ name => 'username', type=>'TEXT', restrictions => 'NOT NULL' },
	{ name => 'domain', type=>'TEXT', restrictions => 'NOT NULL' },
	{ name => 'lastname', type=>'TEXT',},
	{ name => 'firstname', type=>'TEXT'},
	{ name => 'middlename', type=>'TEXT'},
	{ name => 'generation', type=>'TEXT'},
	{ name => 'permanentemail', type=>'TEXT'},
	{ name => 'id', type=>'TEXT'},
	];

	$Allusers_indices = [qw/
	username
	domain
	lastname
	firstname/];

	######################################################################
	######################################################################

=pod	=pod

Line 268 sub describe_metadata_storage {	Line 288 sub describe_metadata_storage {
portfolio_metadata => $Portfolio_metadata_table_description,	portfolio_metadata => $Portfolio_metadata_table_description,
portfolio_access => $Portfolio_access_table_description,	portfolio_access => $Portfolio_access_table_description,
portfolio_addedfields => $Portfolio_addedfields_table_description,	portfolio_addedfields => $Portfolio_addedfields_table_description,
	allusers => $Allusers_table_description,
);	);
my %index_description = (	my %index_description = (
metadata => $Fulltext_indicies,	metadata => $Fulltext_indicies,
portfolio_metadata => $Portfolio_metadata_indices,	portfolio_metadata => $Portfolio_metadata_indices,
portfolio_access => $Portfolio_access_indices,	portfolio_access => $Portfolio_access_indices,
portfolio_addedfields => $Portfolio_addedfields_indices,	portfolio_addedfields => $Portfolio_addedfields_indices,
	allusers => $Allusers_indices,
);	);
if ($tabletype eq 'portfolio_search') {	if ($tabletype eq 'portfolio_search') {
my @portfolio_search_table = @{$table_description{portfolio_metadata}};	my @portfolio_search_table = @{$table_description{portfolio_metadata}};
Line 516 Removes a single metadata record, based	Line 538 Removes a single metadata record, based

Inputs: $dbh, the database handler.	Inputs: $dbh, the database handler.
$tablename, the name of the metadata table to remove from. default: 'metadata'	$tablename, the name of the metadata table to remove from. default: 'metadata'
$url, the url of the resource to remove from the metadata database.	$delitem, the resource to remove from the metadata database, in the form:
	url = quoted url

Returns: undef on success, dbh errorstr on failure.	Returns: undef on success, dbh errorstr on failure.

Line 525 Returns: undef on success, dbh errorstr	Line 548 Returns: undef on success, dbh errorstr
######################################################################	######################################################################
######################################################################	######################################################################
sub delete_metadata {	sub delete_metadata {
my ($dbh,$tablename,$url) = @_;	my ($dbh,$tablename,$delitem) = @_;
$tablename = 'metadata' if (! defined($tablename));	$tablename = 'metadata' if (! defined($tablename));
my $error;	my ($error,$delete_command);
my $delete_command = 'DELETE FROM '.$tablename.' WHERE url='.	if ($delitem eq '') {
$dbh->quote($url);	$error = 'deletion aborted - no resource specified';
$dbh->do($delete_command);	} else {
if ($dbh->err) {	$delete_command = 'DELETE FROM '.$tablename.' WHERE '.$delitem;
$error = $dbh->errstr();	$dbh->do($delete_command);
	if ($dbh->err) {
	$error = $dbh->errstr();
	}
}	}
return $error;	return $error;
}	}
Line 553 Inputs:	Line 579 Inputs:
$dbh, database handle	$dbh, database handle
$newmetadata, hash reference containing the new metadata	$newmetadata, hash reference containing the new metadata
$tablename, metadata table name. Defaults to 'metadata'.	$tablename, metadata table name. Defaults to 'metadata'.
$tabletype, type of table (metadata, portfolio_metadata, portfolio_access)	$tabletype, type of table (metadata, portfolio_metadata, portfolio_access,
	allusers)
	$conditions, optional hash of conditions to use in SQL queries;
	default used if none provided.

Returns:	Returns:
$error on failure. undef on success.	$error on failure. undef on success.
Line 563 $error on failure. undef on success.	Line 592 $error on failure. undef on success.
######################################################################	######################################################################
######################################################################	######################################################################
sub update_metadata {	sub update_metadata {
my ($dbh,$tablename,$tabletype,$newmetadata)=@_;	my ($dbh,$tablename,$tabletype,$newmetadata,$conditions)=@_;
my $error;	my ($error,$condition);
$tablename = 'metadata' if (! defined($tablename));	$tablename = 'metadata' if (! defined($tablename));
$tabletype = 'metadata' if (! defined($tabletype));	$tabletype = 'metadata' if (! defined($tabletype));
if (! exists($newmetadata->{'url'})) {	if (ref($conditions) eq 'HASH') {
$error = 'Unable to update: no url specified';	my @items;
	foreach my $key (keys(%{$conditions})) {
	if (! exists($newmetadata->{$key})) {
	$error .= "Unable to update: no $key specified";
	} else {
	push(@items,"$key = ".$dbh->quote($newmetadata->{$key}));
	}
	}
	$condition = join(' AND ',@items);
	} else {
	if (! exists($newmetadata->{'url'})) {
	$error = 'Unable to update: no url specified';
	} else {
	$condition = 'url = '.$dbh->quote($newmetadata->{'url'});
	}
}	}
return $error if (defined($error));	return $error if (defined($error));
#	#
# Retrieve current values	# Retrieve current values
my $row;	my $row;
($error,$row) = &lookup_metadata($dbh,	($error,$row) = &lookup_metadata($dbh,$condition,undef,$tablename);
' url='.$dbh->quote($newmetadata->{'url'}),
undef,$tablename);
return $error if ($error);	return $error if ($error);
my %metadata = &LONCAPA::lonmetadata::metadata_col_to_hash($tabletype,@{$row->[0]});	my %metadata = &LONCAPA::lonmetadata::metadata_col_to_hash($tabletype,@{$row->[0]});
#	#
Line 586 sub update_metadata {	Line 627 sub update_metadata {
}	}
#	#
# Delete old data (deleting a nonexistant record does not produce an error.	# Delete old data (deleting a nonexistant record does not produce an error.
$error = &delete_metadata($dbh,$tablename,$newmetadata->{'url'});	$error = &delete_metadata($dbh,$tablename,$condition);
return $error if (defined($error));	return $error if (defined($error));
#	#
# Store updated metadata	# Store updated metadata
Line 795 sub process_dynamic_metadata {	Line 836 sub process_dynamic_metadata {
# Get the statistical data - Use a weighted average	# Get the statistical data - Use a weighted average
foreach my $type (qw/avetries difficulty disc/) {	foreach my $type (qw/avetries difficulty disc/) {
my $studentcount;	my $studentcount;
	my %course_counted;
my $sum;	my $sum;
my @Values;	my @Values;
my @Students;	my @Students;
#	#
# Old data	# New data
foreach my $coursedata (values(%{$resdata->{'statistics'}}),
values(%{$resdata->{'stats'}})) {
if (ref($coursedata) eq 'HASH' && exists($coursedata->{$type})) {
$studentcount += $coursedata->{'stdno'};
$sum += ($coursedata->{$type}*$coursedata->{'stdno'});
push(@Values,$coursedata->{$type});
push(@Students,$coursedata->{'stdno'});
}
}
if (exists($resdata->{'stats'})) {	if (exists($resdata->{'stats'})) {
foreach my $identifier (sort(keys(%{$resdata->{'stats'}}))) {	foreach my $identifier (sort(keys(%{$resdata->{'stats'}}))) {
my $coursedata = $resdata->{'stats'}->{$identifier};	my $coursedata = $resdata->{'stats'}->{$identifier};
	next if (lc($coursedata->{$type}) eq 'nan');
	$course_counted{$coursedata->{'course'}}++;
$studentcount += $coursedata->{'stdno'};	$studentcount += $coursedata->{'stdno'};
$sum += $coursedata->{$type}*$coursedata->{'stdno'};	$sum += $coursedata->{$type}*$coursedata->{'stdno'};
push(@Values,$coursedata->{$type});	push(@Values,$coursedata->{$type});
Line 819 sub process_dynamic_metadata {	Line 854 sub process_dynamic_metadata {
}	}
}	}
#	#
# New data	# Old data
	foreach my $course (keys(%{$resdata->{'statistics'}})) {
	next if (exists($course_counted{$course}));
	my $coursedata = $resdata->{'statistics'}{$course};
	if (ref($coursedata) eq 'HASH' && exists($coursedata->{$type})) {
	next if (lc($coursedata->{$type}) eq 'nan');
	$studentcount += $coursedata->{'stdno'};
	$sum += ($coursedata->{$type}*$coursedata->{'stdno'});
	push(@Values,$coursedata->{$type});
	push(@Students,$coursedata->{'stdno'});
	}
	}
if (defined($studentcount) && $studentcount>0) {	if (defined($studentcount) && $studentcount>0) {
$data{$type} = $sum/$studentcount;	$data{$type} = $sum/$studentcount;
$data{$type.'_list'} = join(',',@Values);	$data{$type.'_list'} = join(',',@Values);
Line 828 sub process_dynamic_metadata {	Line 874 sub process_dynamic_metadata {
#	#
# Find out the number of students who have completed the resource...	# Find out the number of students who have completed the resource...
my $stdno;	my $stdno;
foreach my $coursedata (values(%{$resdata->{'statistics'}}),	my %course_counted;
values(%{$resdata->{'stats'}})) {
if (ref($coursedata) eq 'HASH' && exists($coursedata->{'stdno'})) {
$stdno += $coursedata->{'stdno'};
}
}
if (exists($resdata->{'stats'})) {	if (exists($resdata->{'stats'})) {
#	#
# For the number of students, take the maximum found for the class	# For the number of students, take the maximum found for the class
Line 846 sub process_dynamic_metadata {	Line 887 sub process_dynamic_metadata {
}	}
if ($current_course ne $coursedata->{'course'}) {	if ($current_course ne $coursedata->{'course'}) {
$stdno += $coursemax;	$stdno += $coursemax;
	$course_counted{$coursedata->{'course'}}++;
$coursemax = 0;	$coursemax = 0;
$current_course = $coursedata->{'course'};	$current_course = $coursedata->{'course'};
}	}
Line 855 sub process_dynamic_metadata {	Line 897 sub process_dynamic_metadata {
}	}
$stdno += $coursemax; # pick up the final course in the list	$stdno += $coursemax; # pick up the final course in the list
}	}
	# check for old data that has not been run since the format was changed
	foreach my $course (keys(%{$resdata->{'statistics'}})) {
	next if (exists($course_counted{$course}));
	my $coursedata = $resdata->{'statistics'}{$course};
	if (ref($coursedata) eq 'HASH' && exists($coursedata->{'stdno'})) {
	$stdno += $coursedata->{'stdno'};
	}
	}
$data{'stdno'}=$stdno;	$data{'stdno'}=$stdno;
#	#
# Get the context data	# Get the context data
Line 991 sub portfolio_metadata {	Line 1041 sub portfolio_metadata {
}	}
}	}
} # End of ($token->[0] eq 'S')	} # End of ($token->[0] eq 'S')

	if (!exists($metacache{'domain'})) {
	$metacache{'domain'} = $dom;
	}
}	}
return (\%metacache,$metacache{'courserestricted'},\%addedfields);	return (\%metacache,$metacache{'courserestricted'},\%addedfields);
}	}
Line 1000 sub process_portfolio_access_data {	Line 1054 sub process_portfolio_access_data {
my %loghash;	my %loghash;
if ($caller eq 'update') {	if ($caller eq 'update') {
# Delete old data (no error if deleting non-existent record).	# Delete old data (no error if deleting non-existent record).
my $error=&delete_metadata($dbh,$newnames->{'access'},$url);	my $error;
	if ($url eq '') {
	$error = 'No url specified';
	} else {
	my $delitem = 'url = '.$dbh->quote($url);
	$error=&delete_metadata($dbh,$newnames->{'access'},$delitem);
	}
if (defined($error)) {	if (defined($error)) {
$loghash{'access'}{'err'} = "MySQL Error Delete: ".$error;	$loghash{'access'}{'err'} = "MySQL Error Delete: ".$error;
return %loghash;	return %loghash;
Line 1042 sub process_portfolio_metadata {	Line 1102 sub process_portfolio_metadata {
my %loghash;	my %loghash;
if ($caller eq 'update') {	if ($caller eq 'update') {
# Delete old data (no error if deleting non-existent record).	# Delete old data (no error if deleting non-existent record).
my $error=&delete_metadata($dbh,$newnames->{'portfolio'},$url);	my ($error,$delitem);
	if ($url eq '') {
	$error = 'No url specified';
	} else {
	$delitem = 'url = '.$dbh->quote($url);
	$error=&delete_metadata($dbh,$newnames->{'portfolio'},$delitem);
	}
if (defined($error)) {	if (defined($error)) {
$loghash{'metadata'}{'err'} = "MySQL Error delete metadata: ".	$loghash{'metadata'}{'err'} = "MySQL Error delete metadata: ".
$error;	$error;
return %loghash;	return %loghash;
}	}
$error=&delete_metadata($dbh,$newnames->{'addedfields'},$url);	$error=&delete_metadata($dbh,$newnames->{'addedfields'},$delitem);
if (defined($error)) {	if (defined($error)) {
$loghash{'addedfields'}{'err'}="MySQL Error delete addedfields: ".$error;	$loghash{'addedfields'}{'err'}="MySQL Error delete addedfields: ".$error;
}	}
Line 1106 sub process_portfolio_metadata {	Line 1172 sub process_portfolio_metadata {
}	}
}	}
return %loghash;	return %loghash;
	}

	sub process_allusers_data {
	my ($dbh,$simulate,$newnames,$uname,$udom,$userdata,$caller) = @_;
	my %loghash;
	if ($caller eq 'update') {
	# Delete old data (no error if deleting non-existent record).
	my ($error,$delitem);
	if ($udom eq '' \|\| $uname eq '' ) {
	$error = 'No domain and/or username specified';
	} else {
	$delitem = 'domain = '.$dbh->quote($udom).' AND username '.
	'COLLATE latin1_general_cs = '.$dbh->quote($uname);
	$error=&delete_metadata($dbh,$newnames->{'allusers'},$delitem);
	}
	if (defined($error)) {
	$loghash{'err'} = 'MySQL Error in allusers delete: '.$error;
	return %loghash;
	}
	}
	if (!$simulate) {
	if ($udom ne '' && $uname ne '') {
	my ($count,$err) = &store_metadata($dbh,$newnames->{'allusers'},
	'allusers',$userdata);
	if ($err) {
	$loghash{'err'} = 'MySQL Error in allusers insert: '.$err;
	}
	if ($count < 1) {
	$loghash{'count'} =
	'Unable to insert record into MySQL allusers database for '.
	$uname.' in '.$udom;
	}
	} else {
	$loghash{'err'} =
	'MySQL Error allusrs insert: missing username and/or domain';
	}
	}
	return %loghash;
}	}

######################################################################	######################################################################

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Removed from v.1.19
changed lines
	Added in v.1.25