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THEMA: Answer options based on previous question

Answer options based on previous question 4 Monate 2 Tage her #91501

stuttgarter OFFLINE Fresh Lemon Beiträge: 10 Karma: 0	Hello, I have two set of attributes 1. Courses : C1, C2, C3, C4 etc. 2. Teachers: T1, T2, T3, T4, T5, T6 Now Q1: Course Q2: Teacher If user Chooses C1, options in Q2 should be T1, T3, T5 If user Chooses C2, options in Q2 should be T1, T2, T3, T4 If user Chooses C3, options in Q2 should be T2, T3, T4, T5 and so on Any Suggestions???
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Aw: Answer options based on previous question 4 Monate 2 Tage her #91507

ResearchOnBlogs OFFLINE Gold Lime Beiträge: 171 Dank erhalten: 16 Karma: 8	This should be possible with the expression manager and an array filter. Cheers Kai
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Re: Answer options based on previous question 4 Monate 2 Tage her #91524

tpartner OFFLINE LimeSurvey Team Beiträge: 2869 Dank erhalten: 428 Karma: 246	I don't think array filter will work in this case because you would like to show several options in Q2 per Q1 option. Array filter is limited to identical answer codes in both questions. You could do it with custom JavaScript but the details of that script would depend on your question types and the filtering criteria.
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Re: Answer options based on previous question 4 Monate 2 Tage her #91541

stuttgarter OFFLINE Fresh Lemon Beiträge: 10 Karma: 0	Both question types are radio button. Could you elaborate a bit more about java script possibility? Currently i am doing it manually and Q1 & Q2 are all together more than 100 possible questions by using if condition and its making me mad. Thanks in advance.
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Re: Answer options based on previous question 4 Monate 1 Tag her #91625

tpartner
OFFLINE
LimeSurvey Team
Beiträge: 2869
Dank erhalten: 428
Karma: 246

Okay, here's a little script that if placed in the source of Q1, will filter Q2 per your example above.

Assumptions are:
- both questions are on the same page
- both are list-radios
- they use the answer codes defined above
- the script is placed in the source of the first question

<script type="text/javascript" charset="utf-8">
	$(document).ready(function(){
 
		// The Q2 options relevant to the Q1 options		
		teacherLists = {
			C1 : 'T1,T3,T5',
			C2 : 'T1,T2,T3,T4',
			C3 : 'T2,T3,T4,T5',
			C4 : 'T1,T4,T6',
		};
 
		// Identify the questions
		var q1ID = '{QID}';
		var q1 = $('#question'+q1ID+'');
		var q2 = $(q1).nextAll('.list-radio:eq(0)'); 
		var q2ID = $(q2).attr('id').split('question')[1];
 
		// Find the initially checked option in Q1 (if any)
		var q1Ans = '';
		if($('input.radio:checked', q1).length > 0) {
			q1Ans = $('input.radio:checked', q1).attr('value');
		}
 
		// Initially Hide/Show the appropriate teachers
		showTeachers(q1Ans);
 
		// Click events on Q1 radios
		$('input.radio', q1).click(function() {
			var value = $(this).attr('value');
			// Q1 has been changed
			if(value != q1Ans) {
				q1Ans = value;
				// Clear the Q2 answer
				$('input.radio', q2).attr('checked', false)
				// Show the appropriate teachers
				showTeachers(q1Ans);
			}
		});
 
		// A function to show the appropriate teachers
		function showTeachers(q1Ans) {
			// Hide all of the teachers
			$('li[id^="javatbd"]', q2).hide();
			// Now show the appropriate ones
			if(q1Ans != '') {
				$(teacherLists[q1Ans].split(',')).each(function(i){
					$('input.radio[id$="'+q2ID+this+'"]').closest('li').show();
				});
			}
		}
 
	});
</script>

Here's a demo survey:

Dateianhang:

Dateiname: limesurvey_survey_361532.lss
Dateigröße: 18 KB

Cheers,
Tony

LimeSurvey is open-source and run entirely by volunteers so please consider donating to support the project.

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Re: Answer options based on previous question 4 Monate 1 Tag her #91627

stuttgarter OFFLINE Fresh Lemon Beiträge: 10 Karma: 0	I appreciate your answer. Exactly the way i wanted. Million thanks.
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Re: Answer options based on previous question 4 Monate 2 Tage her #91730

stuttgarter
OFFLINE
Fresh Lemon
Beiträge: 10
Karma: 0

Your solution is working great.
I am trying to implement the same script for another question set with Q1(Radio) and Q2(Multiple Choice) but its not working. I have changed the code from radio to checkbox.

Any guidance would be much appreciated.

<script type="text/javascript" charset="utf-8">
$(document).ready(function(){

// The Q2 options relevant to the Q1 options
teacherLists = {
C1 : 'T1,T3,T5',
C2 : 'T1,T2,T3,T4',
C3 : 'T2,T3,T4,T5',
C4 : 'T1,T4,T6',
};

// Identify the questions
var q1ID = '{QID}';
var q1 = $('#question'+q1ID+'');
var q2 = $(q1).nextAll('.list-radio:eq(0)');
var q2ID = $(q2).attr('id').split('question')[1];

// Find the initially checked option in Q1 (if any)
var q1Ans = '';
if($('input.radio:checked', q1).length > 0) {
q1Ans = $('input.radio:checked', q1).attr('value');
}

// Initially Hide/Show the appropriate teachers
showTeachers(q1Ans);

// Click events on Q1 radios
$('input.radio', q1).click(function() {
var value = $(this).attr('value');
// Q1 has been changed
if(value != q1Ans) {
q1Ans = value;
// Clear the Q2 answer
$('input.checkbox', q2).attr('checked', false)
// Show the appropriate teachers
showTeachers(q1Ans);
}
});

// A function to show the appropriate teachers
function showTeachers(q1Ans) {
// Hide all of the teachers
$('li[id^="javatbd"]', q2).hide();
// Now show the appropriate ones
if(q1Ans != '') {
$(teacherLists[q1Ans].split(',')).each(function(i){
$('input.checkbox[id$="'+q2ID+this+'"]').closest('li').show();
});
}
}

});
</script>

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Re: Answer options based on previous question 4 Monate 2 Tage her #91751

tpartner
OFFLINE
LimeSurvey Team
Beiträge: 2869
Dank erhalten: 428
Karma: 246

You missed one selector.

This:

var q2 = $(q1).nextAll('.list-radio:eq(0)');

Should be this:

var q2 = $(q1).nextAll('.multiple-opt:eq(0)');

<script type="text/javascript" charset="utf-8">
	$(document).ready(function(){
 
		// The Q2 options relevant to the Q1 options		
		teacherLists = {
			C1 : 'T1,T3,T5',
			C2 : 'T1,T2,T3,T4',
			C3 : 'T2,T3,T4,T5',
			C4 : 'T1,T4,T6',
		};
 
		// Identify the questions
		var q1ID = '{QID}';
		var q1 = $('#question'+q1ID+'');
		var q2 = $(q1).nextAll('.multiple-opt:eq(0)'); 
		var q2ID = $(q2).attr('id').split('question')[1];
 
		// Find the initially checked option in Q1
		var q1Ans = '';
		if($('input.radio:checked', q1).length > 0) {
			q1Ans = $('input.radio:checked', q1).attr('value');
		}
 
		// Initially Hide/Show the appropriate teachers
		showTeachers(q1Ans);
 
		// Click events on Q1 radios
		$('input.radio', q1).click(function() {
			var value = $(this).attr('value');
			// Q1 has been changed
			if(value != q1Ans) {
				q1Ans = value;
				// Clear the Q2 answer
				$('input.checkbox', q2).attr('checked', false)
				// Show the appropriate teachers
				showTeachers(q1Ans);
			}
		});
 
		// A function to show the appropriate teachers
		function showTeachers(q1Ans) {
			// Hide all of the teachers
			$('li[id^="javatbd"]', q2).hide();
			// Now show the appropriate ones
			if(q1Ans != '') {
				$(teacherLists[q1Ans].split(',')).each(function(i){
					$('input.checkbox[id$="'+q2ID+this+'"]').closest('li').show();
				});
			}
		}
 
	});
</script>

Cheers,
Tony

LimeSurvey is open-source and run entirely by volunteers so please consider donating to support the project.

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Re: Answer options based on previous question 4 Monate 1 Tag her #91774

stuttgarter OFFLINE Fresh Lemon Beiträge: 10 Karma: 0	Thank you very much Tony. just one more question: Is there any list/reference of selector codes like multiple-opt, list.radio etc. based on lime survey question types?
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Re: Answer options based on previous question 4 Monate 1 Tag her #91775

tpartner OFFLINE LimeSurvey Team Beiträge: 2869 Dank erhalten: 428 Karma: 246	Yup - docs.limesurvey.org/The+template+editor&..._of_question_classes Or you can explore the document with a tool like Firebug for Firefox:
	Cheers, Tony LimeSurvey is open-source and run entirely by volunteers so please consider donating to support the project. Der Administrator hat öffentliche Schreibrechte deaktiviert.

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