Hello,
These 4 types are actually not described through our documentation, thank you for your feedback.
If you set the "Type" option to :
- INT : then you'll change the value of the field to an Integer
- FLOAT : then you'll change the value of the field to a "floating point number"
- STRING : then you'll change the value of the field to a string which is series of characters
- OPERATION : then the value of the field will be determined by an operation like for example
+ 1. If we want to change of value of a price then an operation like this will do the job : price.price_value + 1