Twig translation concatenate

Question

I want to translate a variable that contains a string plus a variable like the next one:

  {{ 'string' ~ variable|trans }}

It seems that it's only taking the variable to translate without the string part.

I just discovered it that I can fix this problem creating a previous variable that contains the concatenation from the string and the previous variable like the next example:

   {% set X = 'string' ~ variable %} 

And now we are able to translate what we were trying to translate just translating the X variable:

   {{ X|trans }}

I tried to translate this concatenation like this:

   {% trans %} {{'string' ~ variable }} {% endtrans %}

But also was not a succesfull result for me.

Is any other way to avoid creating this "x" varible to be able to translate all the concatenation straight?

Answer 1

Try this way:

{{ ('string'~variable)|trans }}

Positioning of the braces is important here otherwise filters always will be handled before the concatenation.