XML writer class. More...

Inheritance diagram for ilExerciseXMLWriter:

Collaboration diagram for ilExerciseXMLWriter:

Public Member Functions
	ilExerciseXMLWriter ()
	constructor
	setExercise (&$exercise)
	set exercise object
	setAttachFileContents ($attachFileContents)
	set attachment content mode
	start ()
	getXML ()
	__buildHeader ()
	__buildFooter ()
	setAttachMembers ($value)
	write access to property attchMarkings
Public Member Functions inherited from ilXmlWriter
	ilXmlWriter ($version="1.0", $outEnc="utf-8", $inEnc="utf-8")
	constructor
	_ilXmlWriter ()
	destructor public
	xmlSetDtdDef ($dtdDef)
	Sets dtd definition.
	xmlSetStSheet ($stSheet)
	Sets stylesheet.
	xmlSetGenCmt ($genCmt)
	Sets generated comment.
	_xmlEscapeData ($data)
	Escapes reserved characters.
	xmlEncodeData ($data)
	Encodes text from input encoding into output encoding.
	xmlFormatData ($data)
	Indents text for better reading.
	xmlFormatElement ($array)
	Callback function for xmlFormatData; do not invoke directly.
	xmlHeader ()
	Writes xml header public.
	xmlStartTag ($tag, $attrs=NULL, $empty=FALSE, $encode=TRUE, $escape=TRUE)
	Writes a starttag.
	xmlEndTag ($tag)
	Writes an endtag.
	xmlComment ($comment)
	Writes a comment.
	xmlData ($data, $encode=TRUE, $escape=TRUE)
	Writes data.
	xmlElement ($tag, $attrs=NULL, $data=Null, $encode=TRUE, $escape=TRUE)
	Writes a basic element (no children, just textual content)
	xmlDumpFile ($file, $format=TRUE)
	Dumps xml document from memory into a file.
	xmlDumpMem ($format=TRUE)
	Returns xml document from memory.
	appendXML ($a_str)
	append xml string to document
	xmlClear ()
	clears xmlStr public

Data Fields
	$attachFileContents
	$attachMembers
	$exercise
Data Fields inherited from ilXmlWriter
	$xmlStr
	$version
	$outEnc
	$inEnc
	$dtdDef = ""
	$stSheet = ""
	$genCmt = "Generated by ILIAS XmlWriter"

Static Public Attributes
static	$CONTENT_ATTACH_NO = 0
static	$CONTENT_ATTACH_ENCODED = 1
static	$CONTENT_ATTACH_ZLIB_ENCODED = 2
static	$CONTENT_ATTACH_GZIP_ENCODED = 3
static	$STATUS_NOT_GRADED = "NOT_GRADED"
static	$STATUS_PASSED = "PASSED"
static	$STATUS_FAILED = "FAILED"

Private Member Functions
	attachMarking ($user_id, $assignment_id)
	attach marking tag to member for given assignment
	handleAssignmentFiles ($ex_id, $as_id)
	handleAssignmentMembers ($ex_id, $assignments)
	create xml for files per assignment

Detailed Description

XML writer class.

Class to simplify manual writing of xml documents. It only supports writing xml sequentially, because the xml document is saved in a string with no additional structure information. The author is responsible for well-formedness and validity of the xml document.

Author: Roland Küstermann Rolan.nosp@m.d@ku.nosp@m.ester.nosp@m.mann.nosp@m..com

Version

Id:: class.ilExerciseXMLWriter.php,v 1.3 2005/11/04 12:50:24 smeyer Exp

Definition at line 21 of file class.ilExerciseXMLWriter.php.

Member Function Documentation

ilExerciseXMLWriter::__buildFooter ( )

Definition at line 151 of file class.ilExerciseXMLWriter.php.

Referenced by start().

                                 {
        
        }

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ilExerciseXMLWriter::__buildHeader ( )

Definition at line 143 of file class.ilExerciseXMLWriter.php.

References ilXmlWriter\xmlHeader(), ilXmlWriter\xmlSetDtdDef(), and ilXmlWriter\xmlSetGenCmt().

Referenced by start().

                                 {
                $this->xmlSetDtdDef ( "<!DOCTYPE Exercise PUBLIC \"-//ILIAS//DTD ExerciseAdministration//EN\" \"" . ILIAS_HTTP_PATH . "/xml/ilias_exercise_3_10.dtd\">" );
                $this->xmlSetGenCmt ( "Exercise Object" );
                $this->xmlHeader ();
                
                return true;
        }

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ilExerciseXMLWriter::attachMarking	(	$user_id,
		$assignment_id
	)

private

attach marking tag to member for given assignment

Parameters

int	$user_id
int	$assignment_id

Definition at line 170 of file class.ilExerciseXMLWriter.php.

References $STATUS_FAILED, $STATUS_NOT_GRADED, $STATUS_PASSED, ilExAssignment\lookupCommentForUser(), ilExAssignment\lookupMarkOfUser(), ilExAssignment\lookupNoticeOfUser(), ilExAssignment\lookupStatusOfUser(), ilXmlWriter\xmlElement(), ilXmlWriter\xmlEndTag(), and ilXmlWriter\xmlStartTag().

Referenced by handleAssignmentMembers().

                                                                 {
                
                $amark = ilExAssignment::lookupMarkOfUser($assignment_id, $user_id);
                $astatus = ilExAssignment::lookupStatusOfUser($assignment_id, $user_id);
                $acomment = ilExAssignment::lookupCommentForUser($assignment_id, $user_id);
                $anotice = ilExAssignment::lookupNoticeOfUser($assignment_id, $user_id);
                
                
                if ($astatus == "notgraded") {
                        $status = ilExerciseXMLWriter::$STATUS_NOT_GRADED;
                } elseif ($astatus == "failed") {
                        $status = ilExerciseXMLWriter::$STATUS_FAILED;
                } else {
                        $status = ilExerciseXMLWriter::$STATUS_PASSED;
                }
                
                $this->xmlStartTag ( "Marking", array ("status" => $status ) );
                $this->xmlElement ( "Mark", null, $amark);
                $this->xmlElement ( "Notice", null, $anotice );
                $this->xmlElement ( "Comment", null, $acomment );
                $this->xmlEndTag ( "Marking" );
        }

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ilExerciseXMLWriter::getXML ( )

Definition at line 139 of file class.ilExerciseXMLWriter.php.

References ilXmlWriter\xmlDumpMem().

                          {
                return $this->xmlDumpMem ( FALSE );
        }

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ilExerciseXMLWriter::handleAssignmentFiles	(	$ex_id,
		$as_id
	)

private

Definition at line 193 of file class.ilExerciseXMLWriter.php.

References $CONTENT_ATTACH_GZIP_ENCODED, $CONTENT_ATTACH_ZLIB_ENCODED, $file, $filename, ilXmlWriter\xmlElement(), ilXmlWriter\xmlEndTag(), and ilXmlWriter\xmlStartTag().

Referenced by start().

                                                               {
                $this->xmlStartTag ( "Files" );
                include_once ("./Modules/Exercise/classes/class.ilFSStorageExercise.php");
                $storage = new ilFSStorageExercise ( $ex_id, $as_id );
                $files = $storage->getFiles ();
                
                if (count ( $files )) {
                        foreach ( $files as $file ) {
                                $this->xmlStartTag ( "File", array ("size" => $file ["size"] ) );
                                $this->xmlElement ( "Filename", null, $file ["name"] );
                                if ($this->attachFileContents) {
                                        $filename = $file ["fullpath"];
                                        if (@is_file ( $filename )) {
                                                $content = @file_get_contents ( $filename );
                                                $attribs = array ("mode" => "PLAIN" );
                                                if ($this->attachFileContents == ilExerciseXMLWriter::$CONTENT_ATTACH_ZLIB_ENCODED) {
                                                        $attribs = array ("mode" => "ZLIB" );
                                                        $content = gzcompress ( $content, 9 );
                                                } elseif ($this->attachFileContents == ilExerciseXMLWriter::$CONTENT_ATTACH_GZIP_ENCODED) {
                                                        $attribs = array ("mode" => "GZIP" );
                                                        $content = gzencode ( $content, 9 );
                                                }
                                                $content = base64_encode ( $content );
                                                $this->xmlElement ( "Content", $attribs, $content );
                                        }
                                }
                                $this->xmlEndTag ( "File" );
                        }
                }
                $this->xmlEndTag ( "Files" );
        }

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ilExerciseXMLWriter::handleAssignmentMembers	(	$ex_id,
		$assignments
	)

private

create xml for files per assignment

Parameters

integer	$ex_id	exercise id
array	$assignments	assignment id

Definition at line 231 of file class.ilExerciseXMLWriter.php.

References ilExerciseMembers\_getMembers(), attachMarking(), ilXmlWriter\xmlEndTag(), and ilXmlWriter\xmlStartTag().

Referenced by start().

                                                                       {
                $this->xmlStartTag ( "Members" );
                include_once ("./Modules/Exercise/classes/class.ilExerciseMembers.php");
                $members = ilExerciseMembers::_getMembers($ex_id);
                if (count ( $members )) {
                        foreach ( $members as $member_id ) {
                                $this->xmlStartTag ( "Member", array ("usr_id" => "il_" . IL_INST_ID . "_usr_" . $member_id  ) );
                                if (count ($assignments) > 0) {
                                        foreach($assignments as $assignment) {
                                                $this->attachMarking ( $member_id, $assignment["id"] );         
                                                //todo: handle only first assignment, must be fixed when for dtd
                                                break;
                                        }
                                }                               
                                $this->xmlEndTag ( "Member" );
                        }
                }
                $this->xmlEndTag ( "Members" );
        }

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ilExerciseXMLWriter::ilExerciseXMLWriter ( )

constructor

Parameters

string	xml version
string	output encoding
string	input encoding public

Definition at line 59 of file class.ilExerciseXMLWriter.php.

References $CONTENT_ATTACH_NO, and ilXmlWriter\ilXmlWriter().

                                       {
                // @todo: needs to be revised for multiple assignments per exercise
                //die ("Needs revision for ILIAS 4.1");
                parent::ilXmlWriter ();
                $this->attachFileContents = ilExerciseXMLWriter::$CONTENT_ATTACH_NO;
        }

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ilExerciseXMLWriter::setAttachFileContents ( $attachFileContents )

set attachment content mode

Parameters

int $attachFileContents

Exceptions

ilExerciseException if mode is not supported

Definition at line 82 of file class.ilExerciseXMLWriter.php.

References $attachFileContents, $CONTENT_ATTACH_GZIP_ENCODED, $CONTENT_ATTACH_ZLIB_ENCODED, and ilExerciseException\$ID_DEFLATE_METHOD_MISMATCH.

                                                            {
                if ($attachFileContents == ilExerciseXMLWriter::$CONTENT_ATTACH_GZIP_ENCODED && ! function_exists ( "gzencode" )) {
                        throw new ilExerciseException ( "Inflating with gzip is not supported", ilExerciseException::$ID_DEFLATE_METHOD_MISMATCH );
                }
                if ($attachFileContents == ilExerciseXMLWriter::$CONTENT_ATTACH_ZLIB_ENCODED && ! function_exists ( "gzcompress" )) {
                        throw new ilExerciseException ( "Inflating with zlib (compress/uncompress) is not supported", ilExerciseException::$ID_DEFLATE_METHOD_MISMATCH );
                }
                
                $this->attachFileContents = $attachFileContents;
        }

ilExerciseXMLWriter::setAttachMembers ( $value )

write access to property attchMarkings

Parameters

boolean $value

Definition at line 160 of file class.ilExerciseXMLWriter.php.

                                                 {
                $this->attachMembers = $value ? true : false;
        }

ilExerciseXMLWriter::setExercise ( & $exercise )

set exercise object

Parameters

ilObjExercise $exercise

Definition at line 72 of file class.ilExerciseXMLWriter.php.

References $exercise.

                                           {
                $this->exercise = & $exercise;
        }

ilExerciseXMLWriter::start ( )

Definition at line 93 of file class.ilExerciseXMLWriter.php.

References __buildFooter(), __buildHeader(), ilExAssignment\getAssignmentDataOfExercise(), handleAssignmentFiles(), handleAssignmentMembers(), ilXmlWriter\xmlElement(), ilXmlWriter\xmlEndTag(), and ilXmlWriter\xmlStartTag().

                         {
                $this->__buildHeader ();
                
                $attribs = array ("obj_id" => "il_" . IL_INST_ID . "_exc_" . $this->exercise->getId () );
                
                if ($this->exercise->getOwner ())
                        $attribs ["owner"] = "il_" . IL_INST_ID . "_usr_" . $this->exercise->getOwner ();
                
                $this->xmlStartTag ( "Exercise", $attribs );
                
                //todo: create new dtd for new assignment structure
                //$this->xmlElement("Title", null,$this->exercise->getTitle());
                //$this->xmlElement("Description",  null,$this->exercise->getDescription());
                //$this->xmlElement("Instruction",  null,$this->exercise->getInstruction());
                //$this->xmlElement("DueDate",  null,$this->exercise->getTimestamp());
                
                //todo: as a workaround use first assignment for compatibility with old exercise dtd
                $assignments = ilExAssignment::getAssignmentDataOfExercise ( $this->exercise->getId () );
                
                if (count ( $assignments ) > 0) {
                        foreach ( $assignments as $assignment ) {
                                $this->xmlElement ( "Title", null, $this->exercise->getTitle ());
                                $this->xmlElement ( "Description", null, $this->exercise->getDescription () );
                                $this->xmlElement ( "Instruction", null, $assignment ["instruction"] );
                                $this->xmlElement ( "DueDate", null, $assignment ["deadline"] );
                                
                                $this->handleAssignmentFiles ( $this->exercise->getId (), $assignment ["id"] );
                                //todo: we handle only the first one for workaround, remove later for new dtd
                                break;
                        }
                } else {
                        $this->xmlElement ( "Title", null, $this->exercise->getTitle () );
                        $this->xmlElement ( "Description", null, $this->exercise->getDescription () );
                }
                
                if ($this->attachMembers) {                                     
                        $this->handleAssignmentMembers ($this->exercise->getId (), $assignments);
                }
                
                $this->xmlEndTag ( "Exercise" );
                $this->__buildFooter ();
                
                return true;
        }