ad_page_contract {

    Export an assessment in IMS QTI format

    @author Natalia Pérez (nperper@it.uc3m.es)
    @creation-date 2004-11-25
} -query {
    {assessment_id:integer,optional}
}

if {([info exists assessment_id] && $assessment_id ne "")} {
    # Get the assessment data
    as::assessment::data -assessment_id $assessment_id
    set download_name $assessment_data(title)

    # We get rid of spaces since they are annoying
    regsub -all { } $download_name {_} download_name

    set tmp_dir $download_name
    set ext "zip"

    append download_name ".${ext}"

    ad_returnredirect "${assessment_id}/${download_name}"
    ad_script_abort
}

# convenient way to get the values out of a list
foreach {assessment_id download_name} [split [ad_conn path_info] /] {break}

permission::require_permission -object_id $assessment_id -privilege admin

# Get the assessment data
as::assessment::data -assessment_id $assessment_id

set assessment_id1 $assessment_data(assessment_rev_id)

# publish the object to the file system
set in_path [ad_mktmpdir]


# create a temp dir to put the archive in
set out_path [ad_mktmpdir]

# First create our top-level document
#set doc [dom createDocument questestinterop]
dom createDocument questestinterop doc
set root [$doc documentElement]

# Build our XML document
set assessment [$doc createElement assessment]
$assessment setAttribute title $assessment_data(title)
$assessment setAttribute ident $assessment_data(name)
$root appendChild $assessment

#<qticomment>
as::export::new_element -value $assessment_data(description) -father $assessment -label qticomment -root $doc
#<duration>, time_for_response
as::export::new_element -value $assessment_data(time_for_response) -father $assessment -label duration -root $doc
#<qtimetadata>
if {$assessment_data(run_mode) ne "" || $assessment_data(anonymous_p) ne "" || $assessment_data(secure_access_p) ne "" || $assessment_data(reuse_responses_p) ne "" || $assessment_data(show_item_name_p) ne "" || $assessment_data(consent_page) ne "" || $assessment_data(return_url) ne "" || $assessment_data(start_time) ne "" || $assessment_data(end_time) ne "" || $assessment_data(number_tries) ne "" || $assessment_data(wait_between_tries) ne "" || $assessment_data(time_for_response) ne "" || $assessment_data(ip_mask) ne "" || $assessment_data(show_feedback) ne "" || $assessment_data(section_navigation) ne ""} {

    set qtimetadata [$doc createElement qtimetadata]
    $assessment appendChild $qtimetadata
    #run_mode
    as::export::element_qtimetadatafield -root $doc  -father $qtimetadata -label run_mode -value $assessment_data(run_mode)
    #anonymous_p
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label anonymous_p  -value $assessment_data(anonymous_p)
    #secure_access_p
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label secure_access_p -value $assessment_data(secure_access_p)
    #reuse_responses_p
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label reuse_responses_p -value $assessment_data(reuse_responses_p)
    #show_item_name_p
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label show_item_name_p -value $assessment_data(show_item_name_p)
    #consent_page
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label consent_page -value $assessment_data(consent_page)
    #return_url
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label return_url -value $assessment_data(return_url)
    #start_time
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label start_time -value $assessment_data(start_time)
    #end_time
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label end_time  -value $assessment_data(end_time)
    #number_tries
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label number_tries -value $assessment_data(number_tries)
    #wait_between_tries
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label wait_between_tries -value $assessment_data(wait_between_tries)
    #ip_mask
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label ip_mask -value $assessment_data(ip_mask)
    #show_feedback
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label show_feedback -value $assessment_data(show_feedback)
    #section_navigation
    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label section_navigation -value $assessment_data(section_navigation)
}

#<objectives>
as::export::new_element -value $assessment_data(description) -father $assessment -label objectives -root $doc -material_p t

#<assessmentcontrol>
set assessmentcontrol [$doc createElement assessmentcontrol]
if { $assessment_data(show_feedback) eq "none" } {
    $assessmentcontrol setAttribute feedbackswitch "No"
} else {
    $assessmentcontrol setAttribute feedbackswitch "Yes"
}
$assessmentcontrol setAttribute solutionswitch "No"
$assessment appendChild $assessmentcontrol

#<rubric>
as::export::new_element -value $assessment_data(instructions) -father $assessment -label rubric -root $doc -material_p t

db_multirow sections query_all_sections {} {
    #<section>
    set section [$doc createElement section]
    $section setAttribute title $section_title
    $section setAttribute ident $section_name
    $assessment appendChild $section
    #<qticomment>
    as::export::new_element -value $section_description -father $section -label qticomment -root $doc

    #<qtimetadata>
    set section_display_type ""
    set s_num_items ""
    set s_adp_chunk ""
    set s_branched_p ""
    set s_back_button_p ""
    set s_submit_answer_p ""
    set s_sort_order_type ""
    db_0or1row section_display_data {}

    #<duration>
    as::export::new_element -value $section_max_time_to_complete -father $section -label duration -root $doc

    if {$section_num_items ne "" || $section_points ne "" || $section_display_type ne "" || $s_num_items ne "" || $s_adp_chunk ne "" || $s_branched_p ne "" || $s_back_button_p ne "" || $s_submit_answer_p ne "" || $s_sort_order_type ne ""} {
        set qtimetadata [$doc createElement qtimetadata]
        $section appendChild $qtimetadata
        #num_items
        as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label num_items -value $section_num_items
        #points
	as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label points -value $section_points
	#display_type
	as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label display_type -value $section_display_type
	#s_num_items
	as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label s_num_items -value $s_num_items
	#adp_chunk
	as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label adp_chunk -value $s_adp_chunk
	#branched_p
	as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label branched_p -value $s_branched_p
	#back_button_p
	as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label back_button_p -value $s_back_button_p
	#submit_answer_p
	as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label submit_answer_p -value $s_submit_answer_p
	#sort_order_type
	as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label sort_order_type -value $s_sort_order_type
    }

    #<objectives>
    as::export::new_element -value $section_description -father $section -label objectives -root $doc -material_p t
    #<rubric>
    as::export::new_element -value $section_instructions -father $section -label rubric -root $doc -material_p t
    #<sectionfeedback>
    as::export::new_element -value $section_feedback_text -father $section -label sectionfeedback -root $doc -material_p t -attribute_label ident -attribute_value $section_id

    #<selection_ordering>
    set selection_ordering [$doc createElement selection_ordering]
    $section appendChild $selection_ordering
    #<selection>
    set selection [$doc createElement selection]
    $selection_ordering appendChild $selection
    #<selection_number>
    set selection_number [$doc createElement selection_number]
    $selection appendChild $selection_number
    set text [$doc createCDATASection "All"]
    $selection_number appendChild $text
    #<order>
    set order [$doc createElement order]
    $order setAttribute order_type "Sequential"
    $selection_ordering appendChild $order

    db_foreach query_all_items {} {
	#reset variables
	set cb__display_id {}
        unset cb__display_id
        set rb__display_id {}
        unset rb__display_id
        set tb__display_id {}
        unset tb__display_id
        set ta__display_id {}
        unset ta__display_id
        set mc_id [as::item_rels::get_target -item_rev_id $as_item_id -type as_item_type_rel]
        set item_display_id [as::item_rels::get_target -item_rev_id $as_item_id -type as_item_display_rel]
        set items_as_item_id [db_string items_items_as_item_id "SELECT item_id FROM cr_revisions WHERE revision_id = :as_item_id"]
	#checkbox
        db_0or1row as_item_display_cbx "SELECT as_item_display_id AS cb__display_id FROM as_item_display_cb WHERE as_item_display_id=:item_display_id"
	#radiobutton
        db_0or1row as_item_display_rbx "SELECT as_item_display_id AS rb__display_id FROM as_item_display_rb WHERE as_item_display_id=:item_display_id"
	#textbox (fill-in-the-blank)
        db_0or1row as_item_display_tbx "SELECT as_item_display_id AS tb__display_id FROM as_item_display_tb WHERE as_item_display_id=:item_display_id"
	#textarea (short answer)
        db_0or1row as_item_display_tax "SELECT as_item_display_id AS ta__display_id FROM as_item_display_ta WHERE as_item_display_id=:item_display_id"

	#<item>
	set item [$doc createElement item]
	if { $field_name ne "" } {
	    set item_name $field_name
	}
	$item setAttribute ident $item_name
	$section appendChild $item

	#<qticomment>
	as::export::new_element -value $item_description -father $item -label qticomment -root $doc
	#<duration>
	as::export::new_element -value $item_max_time_to_complete -father $item -label duration -root $doc

	if {$item_field_code ne "" || $item_required_p ne "" || $item_points ne "" || $item_data_type ne ""} {
	    set itemmetadata [$doc createElement itemmetadata]
	    $item appendChild $itemmetadata
	    set qtimetadata [$doc createElement qtimetadata]
	    $itemmetadata appendChild $qtimetadata
	    #field_code
	    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label field_code -value $item_field_code
	    #required_p
	    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label required_p -value $item_required_p
	    #points
	    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label points -value $item_points
	    #data_type
	    as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label data_type -value $item_data_type

	    #multiple response or multiple choice items
	    if {[info exists cb__display_id] || [info exists rb__display_id]} {
	        #as_item_type_mc-----------------
	        db_0or1row item_type_data {}
	        #increasing_p
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label increasing_p -value $increasing_p
		#allow_negative_p
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label allow_negative_p -value $allow_negative_p
		#num_correct_answers
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label num_correct_answers -value $num_correct_answers
		#num_answers
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label num_answers -value $num_answers

		#as_item_display_rb
	       	if {[info exists rb__display_id]} {
	            db_0or1row item_display_rb_data { }
	        } else {
		    db_0or1row item_display_cb_data { }
	        }

		#html_display_options
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label html_display_options -value $html_display_options
		#choice_orientation
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label choice_orientation -value $choice_orientation
		#choice_label_orientation
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label choice_label_orientation -value $choice_label_orientation
		#sort_order_type
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label sort_order_type -value $sort_order_type
		#item_answer_alignment
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label item_answer_alignment -value $item_answer_alignment

            } elseif {[info exists ta__display_id]} {
		db_0or1row item_display_ta_data {}
		#abs_size
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label abs_size -value $abs_size
		#item_answer_alignment
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label item_answer_alignment -value $item_answer_alignment
	    } elseif {[info exists tb__display_id]} {
	        db_0or1row item_display_tb_data {}
		#abs_size
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label tb_abs_size -value $tb_abs_size
		#item_answer_alignment
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label item_answer_alignment -value $item_answer_alignment
	    }

	    # open question item
	    db_0or1row as_item_oq { }
	    if {[info exists id__as_item_type_oq]} {
		#default_value
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label default_value -value $default_value
		#feedback_text
		as::export::element_qtimetadatafield -root $doc -father $qtimetadata -label feedback_text -value $feedback_text
	    }
        }

	#<objectives>
	as::export::new_element -value $item_description -father $item -label objectives -root $doc -material_p t
	#<rubric>
	as::export::new_element -value $item_subtext -father $item -label rubric -root $doc -material_p t

	#<presentation>
	set presentation [$doc createElement presentation]
	$item appendChild $presentation

	if {![info exists tb__display_id]} {
	    #<material>
	    set material [$doc createElement material]
	    $presentation appendChild $material
	    #<mattext>
	    set mattext [$doc createElement mattext]
	    $mattext setAttribute texttype text/html
	    $material appendChild $mattext
	    set text [$doc createCDATASection $item_title]
	    $mattext appendChild $text

	    #content_type: imagen
	    set content_type ""

	    db_0or1row get_content_type_items {}
	    if {$content_type eq "image"} {
		#<matimage>
		set matimage [$doc createElement matimage]
		$material appendChild $matimage
		$matimage setAttribute uri $content_filename
		if {$mime_type ne ""} {
		    $matimage setAttribute imagtype $mime_type
		}

                set cr_path [cr_fs_path $storage_area_key]
		file copy -force -- "${cr_path}${cr_file_name}" [file join ${in_path} $content_filename]
	    }
	}


	#find out the item type (multiple choice or multiple response)
	if {[info exists cb__display_id] || [info exists rb__display_id]} {
	    if {[info exists cb__display_id]} {
	        # checkbox
	        set rcardinality "Multiple"
	    } else {
	        # radiobutton
	        set rcardinality "Single"
	    }
	    #<response_lid>
	    set response_lid [$doc createElement response_lid]
	    $response_lid setAttribute ident $item_name
	    $response_lid setAttribute rcardinality $rcardinality
	    $response_lid setAttribute rtiming "No"
	    $presentation appendChild $response_lid
	    #<render_choice>
	    set render_choice [$doc createElement render_choice]
	    $response_lid appendChild $render_choice
	    db_foreach query_all_choices {} {
	        #<flow_label>
		set flow_label [$doc createElement flow_label]
		$render_choice appendChild $flow_label
		#<response_label>
		set response_label [$doc createElement response_label]
		$response_label setAttribute ident $choice_name
		$response_label setAttribute rshuffle "Yes"
		$flow_label appendChild $response_label
		#<material>
	        set material [$doc createElement material]
	        $response_label appendChild $material

		#content_type: imagen
	        if {$content_type eq "image"} {
		    #<matimage>
		    set matimage [$doc createElement matimage]
		    $material appendChild $matimage
		    $matimage setAttribute uri $content_filename
		    if {$mime_type ne ""} {
		        $matimage setAttribute imagtype $mime_type
		    }
		    set cr_path [cr_fs_path $storage_area_key]
                    file copy -force -- "${cr_path}${cr_file_name}" [file join ${in_path} $content_filename]

	        } else {
		    #<mattext>
		    set mattext [$doc createElement mattext]
		    $mattext setAttribute texttype text/html
	            $material appendChild $mattext
	            set text [$doc createCDATASection $choice_title]
	            $mattext appendChild $text
		}
	    }
	} else {
	    #short answer
	    if {[info exists ta__display_id] } {
	        #<response_str>
	        set response_str [$doc createElement response_str]
	        $response_str setAttribute ident $item_name
	        $response_str setAttribute rcardinality "Single"
	        $response_str setAttribute rtiming "No"
		$presentation appendChild $response_str
	        #get rows and cols for painting a textarea (in abs_size is stored as "rows value cols value", we need to add the symbol =)
                db_0or1row html_rows_cols "SELECT html_display_options FROM as_item_display_ta WHERE as_item_display_id=:item_display_id"
	        if {![catch {array set html_array $html_display_options} errMsg] && [info exists html_array(rows)] && [info exists html_array(cols)]} {
		    set rows $html_array(rows)
		    set columns $html_array(cols)
		} else {
		    set rows 15
		    set columns 55
		}
		#<render_fib>
		set render_fib [$doc createElement render_fib]
		$render_fib setAttribute fibtype "String"
		$render_fib setAttribute prompt "Box"
		$render_fib setAttribute encoding "UTF-8"
		$render_fib setAttribute rows $rows
		$render_fib setAttribute columns $columns
		$response_str appendChild $render_fib
		#<response_label>
		set response_label [$doc createElement response_label]
		$response_label setAttribute ident $item_name
		$response_label setAttribute rshuffle "Yes"
		$render_fib appendChild $response_label
	    } else {
	        #fill in the blank
		#whether it's a fill-in-blank I have to split by <textbox as_item_choice_id>
		ns_log notice "DEBUG::1 $item_title"
		regsub -all -line -nocase -- "<textbox.as_item_choice_id=" $item_title ":" html
		ns_log notice "DEBUG::2 $html"
		regsub -all -line -nocase -- ">" $html ":" html1
		ns_log notice "DEBUG::3 $html1"
		set item_title1 [split $html1 :]
	        set longitud [llength $item_title1]

		for {set i 0} {$i<=[llength $item_title1]-1} {incr i 2} {
		    ns_log notice "DEBUG::4 $i"
		    set item_title [lindex $item_title1 $i]
	            #<material>
	            set material [$doc createElement material]
		    $presentation appendChild $material
	            #<mattext>
	            set mattext [$doc createElement mattext]
		    $mattext setAttribute texttype text/html
	            $material appendChild $mattext
	            set text [$doc createCDATASection $item_title]
	            $mattext appendChild $text
	            #<response_str>
	            set response_str [$doc createElement response_str]
		    $response_str setAttribute ident $item_name$i
	            $response_str setAttribute rcardinality "Single"
	            $response_str setAttribute rtiming "No"
		    $presentation appendChild $response_str
		    #<render_fib>
		    set render_fib [$doc createElement render_fib]
		    $render_fib setAttribute fibtype "String"
		    $render_fib setAttribute prompt "Box"
		    $render_fib setAttribute encoding "UTF-8"
		    $response_str appendChild $render_fib
		    #<response_label>
		    set response_label [$doc createElement response_label]
		    $response_label setAttribute ident $item_name
		    $response_label setAttribute rshuffle "Yes"
		    $render_fib appendChild $response_label
		}
	    }
	}

	if { $assessment_data(survey_p) != "t" && ![info exists ta__display_id] } {
	    #<resprocessing>
	    set resprocessing [$doc createElement resprocessing]
	    $item appendChild $resprocessing
	    #<outcomes>
	    set outcomes [$doc createElement outcomes]
	    $resprocessing appendChild $outcomes
	    #decvar
	    set decvar [$doc createElement decvar]
	    $outcomes appendChild $decvar
	    $decvar setAttribute vartype "Integer"
	    #<respcondition>
	    set respcondition [$doc createElement respcondition]
	    $resprocessing appendChild $respcondition
	    #<conditionvar>
	    set conditionvar [$doc createElement conditionvar]
	    $respcondition appendChild $conditionvar

	    #fill-in-blank
	    if {[info exists tb__display_id]} {
		set i 0
		db_foreach query_all_choices {} {
		    #<or>
		    set or [$doc createElement or]
		    $conditionvar appendChild $or
		    set list_choice_title [list $choice_title]
		    for {set j 0} {$j < [llength $list_choice_title]} {incr j 1} {
			#<varequal>
			set varequal [$doc createElement varequal]
			$varequal setAttribute respident $item_name$i
			$or appendChild $varequal
			set text [$doc createCDATASection [lindex $list_choice_title $j]]
			$varequal appendChild $text
		    }
		    incr i 2
		}
	    } else {


		#<and>
		set and [$doc createElement and]
		$conditionvar appendChild $and

		set exist_false 0
		db_foreach query_all_choices2 {} {
		    if {$correct_answer_p == "t" } {
			#<varequal>
			set varequal [$doc createElement varequal]
			$varequal setAttribute respident $item_name
			$and appendChild $varequal
			set text [$doc createCDATASection $name]
			$varequal appendChild $text
		    } else {
			set exist_false 1
		    }
		}
		if { $exist_false == 1 } {
		    #<not>
		    set not [$doc createElement not]
		    $and appendChild $not
		    #<or>
		    set or [$doc createElement or]
		    $not appendChild $or
		    db_foreach query_all_choices2 {} {
			if {$correct_answer_p == "f" } {
			    #<varequal>
			    set varequal [$doc createElement varequal]
			    $varequal setAttribute respident $item_name
			    $or appendChild $varequal
			    set text [$doc createCDATASection $name]
			    $varequal appendChild $text
			}
		    }
		}
	    }

	    set num_answers_correct ""
	    db_0or1row num_answers_correct {}

	    if {$item_points == 1 && $num_answers_correct>1} {
		#<setvar>
		set setvar [$doc createElement setvar]
		$setvar setAttribute varname "SCORE"
		$setvar setAttribute action "Add"
		$respcondition appendChild $setvar
		set text [$doc createCDATASection $item_points]
		$setvar appendChild $text
	    }

	    #<displayfeedback>
	    set displayfeedback [$doc createElement displayfeedback]
	    set linkrefid { }
	    append linkrefid $item_name displayRight
	    $displayfeedback setAttribute linkrefid $linkrefid
	    $respcondition appendChild $displayfeedback

	    #<respcondition>
	    set respcondition [$doc createElement respcondition]
	    $resprocessing appendChild $respcondition
	    #<conditionvar>
	    set conditionvar [$doc createElement conditionvar]
	    $respcondition appendChild $conditionvar

	    #fill-in-blank
	    if {[info exists tb__display_id]} {
		set i 0
		#<not>
		set not [$doc createElement not]
		$conditionvar appendChild $not
		#<and>
		set and [$doc createElement and]
		$not appendChild $and
		db_foreach query_all_choices {} {
		    #<or>
		    set or [$doc createElement or]
		    $and appendChild $or
	            set list_choice_title [list $choice_title]

		    for {set j 0} {$j < [llength $list_choice_title]} {incr j 1} {
			#<varequal>
			set varequal [$doc createElement varequal]
			$varequal setAttribute respident $item_name$i
			$or appendChild $varequal
			set text [$doc createCDATASection [lindex $list_choice_title $j]]
			$varequal appendChild $text
		    }
		    incr i 2
		}

	    } else {

		#<or>
		set or [$doc createElement or]
		$conditionvar appendChild $or

		set exist_true 0
		db_foreach query_all_choices2 {} {
		    if {$correct_answer_p == "f" } {
			#<varequal>
			set varequal [$doc createElement varequal]
			$varequal setAttribute respident $item_name
			$or appendChild $varequal
			set text [$doc createCDATASection $name]
			$varequal appendChild $text
		    } else {
			set exist_true 1
		    }
		}
		if { $exist_true == 1 } {
		    #<not>
		    set not [$doc createElement not]
		    $or appendChild $not
		    #<and>
		    set and [$doc createElement and]
		    $not appendChild $and
		    db_foreach query_all_choices2 {} {
			if {$correct_answer_p == "t" } {
			    #<varequal>
			    set varequal [$doc createElement varequal]
			    $varequal setAttribute respident $item_name
			    $and appendChild $varequal
			    set text [$doc createCDATASection $name]
			    $varequal appendChild $text
			}
		    }
		}
	    }

	    #<displayfeedback>
	    set displayfeedback [$doc createElement displayfeedback]
	    set linkrefid { }
	    append linkrefid $item_name displayWrong
	    $displayfeedback setAttribute linkrefid $linkrefid
	    $respcondition appendChild $displayfeedback


	    if {$item_points>1 || $num_answers_correct==1} {
		db_foreach query_all_choices {} {
		    set i 0
		    # [info exists tb__display_id] because for fib item choice_correct_answer_p is null
		    if { $choice_correct_answer_p == "t" || [info exists tb__display_id] } {

                    set list_choice_title [list $choice_title]

			set length_list_choice_title [llength $list_choice_title]

			if {![info exists tb__display_id]} {
			    set length_list_choice_title 1
			}

			for {set j 0} {$j < $length_list_choice_title} {incr j 1} {
			    #<respcondition>
			    set respcondition [$doc createElement respcondition]
			    $respcondition setAttribute title "adjustscore"
			    $resprocessing appendChild $respcondition
			    #<conditionvar>
			    set conditionvar [$doc createElement conditionvar]
			    $respcondition appendChild $conditionvar
			    #<varequal>
			    set varequal [$doc createElement varequal]
			    if {[info exists tb__display_id]} {
				$varequal setAttribute respident $item_name$i
			    } else {
				$varequal setAttribute respident $item_name
			    }
			    $conditionvar appendChild $varequal
			    if {[info exists tb__display_id]} {
				set text [$doc createCDATASection [lindex $list_choice_title $j]]
			    } else {
				set text [$doc createCDATASection $choice_name]
			    }
			    $varequal appendChild $text
			    #<setvar>
			    set setvar [$doc createElement setvar]
			    $setvar setAttribute varname "SCORE"
			    $setvar setAttribute action "Add"
			    $respcondition appendChild $setvar
			    # in fib items choice_percent_score column is null
			    if {$choice_percent_score eq ""} {
				set choice_percent_score 1
			    } else {
				set choice_percent_score [expr {round (($num_answers_correct * $choice_percent_score * 1.0) / 100)}]
			    }
			    set text [$doc createCDATASection $choice_percent_score]
			    $setvar appendChild $text
			    #feedback choice
			    if {$choice_feedback_text ne ""} {
				set displayfeedback [$doc createElement displayfeedback]
				set linkrefid { }
				append linkrefid $choice_name feedbackChoice
				$displayfeedback setAttribute linkrefid $linkrefid
				$respcondition appendChild $displayfeedback
			    }
			}
		    }
		    incr i 2

		    #for feedback choice
		    if { $choice_correct_answer_p == "f" && $choice_feedback_text ne "" } {
			#<respcondition>
			set respcondition [$doc createElement respcondition]
			$resprocessing appendChild $respcondition
			#<conditionvar>
			set conditionvar [$doc createElement conditionvar]
			$respcondition appendChild $conditionvar
			#<varequal>
			set varequal [$doc createElement varequal]
			$varequal setAttribute respident $item_name
			$conditionvar appendChild $varequal
			set text [$doc createCDATASection $choice_name]
			$varequal appendChild $text
			#feedback choice
			set displayfeedback [$doc createElement displayfeedback]
			set linkrefid { }
			append linkrefid $choice_name feedbackChoice
			$displayfeedback setAttribute linkrefid $linkrefid
			$respcondition appendChild $displayfeedback
		    }
		}
	    }

	    #feedback_wrong
	    if {$item_feedback_wrong ne "" } {
		#<itemfeedback>
		set itemfeedback [$doc createElement itemfeedback]
		set ident { }
		append ident $item_name displayWrong
		$itemfeedback setAttribute ident $ident
		$item appendChild $itemfeedback
		#<flow_mat>
		as::export::new_element -value $item_feedback_wrong -father $itemfeedback -label flow_mat -root $doc -material_p t
	    }

	    #feedback_right
	    if {$item_feedback_right ne ""} {
		#<itemfeedback>
		set itemfeedback [$doc createElement itemfeedback]
		set ident { }
		append ident $item_name displayRight
		$itemfeedback setAttribute ident $ident
		$item appendChild $itemfeedback
		#<flow_mat>
		as::export::new_element -value $item_feedback_right -father $itemfeedback -label flow_mat -root $doc -material_p t
	    }

	    #feedback_choice
	    db_foreach query_all_choices {} {
		if {$choice_feedback_text ne ""} {
		    #<itemfeedback>
		    set itemfeedback [$doc createElement itemfeedback]
		    set ident { }
		    append ident $choice_name feedbackChoice
		    $itemfeedback setAttribute ident $ident
		    $item appendChild $itemfeedback
		    #<flow_mat>
		    as::export::new_element -value $choice_feedback_text -father $itemfeedback -label flow_mat -root $doc -material_p t
		}
	    }
	}

    }
}


#puts [$root asXML]

set outfd "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
append outfd "<!DOCTYPE questestinterop SYSTEM \"http://www.imsglobal.org/question/qtiv1p2p1/XMLSchemav1p2p1/xmla/ims_qtiasiv1p2p1schema/dtds/qtiasifullncdtd/ims_qtiasiv1p2p1.dtd\">"
append outfd [$root asXML]

# store the tree xml into a file
set file_name "$in_path/$assessment_data(title).xml"
set file [open $file_name w 0600]
puts $file $outfd
close $file

set tmp_file "[ad_generate_random_string].zip"

set out_file [file join ${out_path} ${tmp_file}]

# get the archive command
# TODO SECURITY DONT USE GLOBBING
set cmd "zip -r -9 -X '$out_file' *"

# create the archive
# TODO SECURITY DONT USE THE SHELL
exec bash -c "cd '$in_path'; $cmd; cd -"

# return the archive to the connection.
ns_returnfile 200 [ns_guesstype $out_file] $out_file

# clean everything up
file delete -force $in_path
file delete -force $out_path

# Local variables:
#    mode: tcl
#    tcl-indent-level: 4
#    indent-tabs-mode: nil
# End: