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mkliqvia
Partner - Contributor II
Partner - Contributor II

If condition: compare strings without single quotes

Hi all,

Is there a way to write a comparison between a variable and a string in an IF-condition without single quotes '  ' ?

E.g. IF('$(vCondition)' = 'A', Field1, Field2)

Some background of why I need this. I have been trying to implement the second solution written in this article. I have a graph that should show a certain measure from a list of calculation-intensive measures based on a condition. As we know, if you place multiple measures within an IF-condition, it will first calculate all the measures, and then provide the result, which makes the app slower and less repsonsive.

Therefore, from this article, I try to build this part:

Qlik forum.png

As you can see, for this we need our measures to be between single quotes. 

In my case, I have something like this:
=if(vSelectMeasure=1,
'sum(IF('$(vCondition)' = 'A', Field1, Field2))',
'count(IF('$(vCondition)' = 'A', Field1, Field2))')

In this formula, we have single quotes to show which measure to use (outer-quotes), and within each measure, other single quotes to compare the condition with a string. These latter single quotes will make this fail as Qlik will think it represents the end of the first outer-quotes.

I have already tried multiple solutions not to have single quotes inside this formula, without success:

  • Tried to put double quotes here "$(vCondition)" = "A" or on the outside quotes
  • Tried to use chr(39) : IF( chr(39)&$(vCondition)&chr(39) = chr(39)&A&chr(39), Field1, Field2)
    • This provides a strange result as it returns True for any value of vCondition, so it's not comparing. 
  • Tried to put this condition in another variable (with and without an = sign before), but Qlik still reads this variable and stops at the first single quote.
  • Tried with pick(match()), but it behaves the same as IF.
  • Tried with the replace() function to replace a certain character with chr(39), but in there we still need to use single quotes around the special chars.

Do you have an idea of what else I could try to solve this? 

4 Replies
fosuzuki
Partner - Specialist III
Partner - Specialist III

Hi,

Maybe this will work: 

=if(vSelectMeasure=1,
'sum(IF(' & chr(39) & '$(vCondition)' & chr(39) & ' = ' & chr(39) & 'A' & chr(39) & ', Field1, Field2))',
'count(IF(' & chr(39) & '$(vCondition)' & chr(39) & ' = ' & chr(39) & 'A' & chr(39) & ', Field1, Field2))')

mkliqvia
Partner - Contributor II
Partner - Contributor II
Author

Hi, thanks for your suggestion, but that didn't work.

The single quotes '  ' are still being interpreted as the end of the outer-quotes in this formula.

fosuzuki
Partner - Specialist III
Partner - Specialist III

What is the content of vCondition variable?

mkliqvia
Partner - Contributor II
Partner - Contributor II
Author

The vCondition variable contains a string value (A, B, C, ...) that is being modified by the extension 'Variable input'. Therefore, it contains no calculations.