Is there a way for LimeSurvey to eliminate a choice after a given number of people have chosen it?

We want to put out a questionaire asking people to chose a time slot (simple multiple choice question). But when, say, 30 people have chosen the "11:00-11:30" time slot, we want that choice to be no longer available.

Thanks in advance for any guidance you can provide.

Generally, yes.
There are examples here either using an ajax call or - easier - using a plugin.
Now the questions:
Which version of LimeSurvey do you use?
Do you have rights to install plugins? 

Later - after breakfast - I will show something.

Joffm

Well, here you are:
I used the plugin "getStatInSurvey"
[url] gitlab.com/SondagesPro/ExportAndStats/getStatInSurvey [/url]

In the first group of the survey I capture the already given responses with this plugin
In the second group I use this often described method.
In a hidden multiple question the subquestions are checked or not by an equation.
Now I uise this multiple question as array filter for the single question.
This way I can hide answer options which are not available anymore

In this example there are 5 places available in each option:
 

option 1 was selected 4 times, is now selected the fifth time.
So the next participant will see this
 

That's fine.
But what happens if the one participant sees that option 1 was selected 4 times, and he hesitates what option to select.
Now the next participant will start the survey. He also sees that option 4 was selected only 4 times.
Meaning both may select option 1.
Values are only calculated from complete surveys.

Here the sample survey
 

Joffm




 

Thank you so much for that.

We are on 3.21.5+200115. I wont be able to add plugins.

It may work for us to simply use the quota function to limit the number of people who can chose a given option, but when full it just tells person that it is full and please make another choice. If we cant make the choice disappear when its full, can we at least show a running total on each option? So that the responders would see "5/5" for example and know that that option is already full?

I wont be able to add plugins.

And I doubt that you have access to the database.
Where and how is LimeSurvey hosted?

So you won't be able to count the given responses. 
And of course you can't display something like "5/5", as you do not know it. 

And quota? Works, but is a bit annoying.
If the participant selects a date and then is screened out - maybe with the message "This date is not available - try again with a different one".

Joffm
 

LimeSurvey 4.4 have an included plugin for statitstics

www.limesurvey.org/manual/StatFunctions

Yes, many times mentioned.
But in 4.4.16. and this test survey
 

I get this "undefined" error.
 

Can somebody explain what is to do additionally?

Joffm

Did you activate the plugin ?

In case : www.limesurvey.org/manual/index.php?titl...=161797&oldid=159277

After a new install of 4.x. and "Scan Files" / "Install"
and a second "Install" in Plugin Manager it is working now.

The "old" installation showed an error related to "config.xml"; no idea, what happened.

Joffm

 

It's clear enough on manual ?

Manual still related to 3.X …

After a new install of 4.x. and "Scan Files" / "Install"and a second "Install" in Plugin Manager it is working now.

So the root cause is still unknown. You did a complete new installation.
The "old" installation was a LS4 native or a LS3 upgrade to LS4?
The plugin was working till an update LS4 ? to LS4 4.4.16 was applied?

The only clue is the config.xml. That looks like we will see more upgrade issues around plugins.

We are currently self-hosting the 3.11 version. Would it be possible to get a sample survey? What are the plugins that we need to install?
Our free event for kids will have 10 time blocs, each bloc has 10-15 concurrent workshops that are different from one bloc to another.
We are willing to set up the 4.4 version on a separate instance just for this registration step if the sample survey works out. THANK YOU.