array about ransack

[ernie]

Wait.... so you have a DB string, and you're storing an "array" of numbers, in a string that looks like: "[1,2,3,5,20]", right?

So, that comparison operation will have to be done at the database level... If you're using MySQL, you might want to store the data in a set, which is essentially the same thing minus the [], then use FIND_IN_SET. If you're using another database, you will need to do some munging to the attribute to compare with the input value. You could probably set up a ransacker on the model in question to generate the SQL you need.

i'm work with postgresql.
So i found if i add "" ("2" in my previous example) in the search form, the result is good.
the "" is use for exactly matches or is just an artefact with my DB.

then, how to make all search "exactly" by default ?