Missing response gives getSurveyData error

[drgaryhb]

Hi Jonathan

First, thank you for Shinysurveys - it's great! I hope you can help with this!

I have a matrix of n questions and 5 radio buttons per questions, created using the code below. Instead of hard-coding the questions it reads from a database file so I can change the number of questions, response intervals etc.

Code is attached

It works great if all buttons are checked but...

If a radio button is not checked then it is a missing value in the getSurveyData() dataframe (code below) which throws an error message: "Warning: Error in data.frame: arguments imply differing number of rows: 1, 0"

As I understand it, getSurvey() returns a data frame/tibble where missing values will create a dataframe with columns of uneven length, hence i.e. a value is not inserted in to row... "differing number of rows: 1, 0"

So...
Q.1 How can I prevent the error / uneven col lengths? Or insert an NA or arbitrary value such as 999?

Q.2 Is there a method to check that all questions are answered, a. immediately when a response is missed and b. of checking all responses when the submit button is clicked?

Thank you in advance,

Kind regards

Gary

app.txt

[cwilligv]

Hey @drgaryhb , how did you solve this? I'm facing a similar challenge with my questions using a matrix. Each question has 4 options and user can select only 2 out of the 4 options, no more no less. When I select only 2 I get the same error you're describing. Would be great to know how you solved it.

Thanks!