Commit Lock with Redmine

Question

I need to block a commit until its condition in Redmine is acceptable. Knowing that the required status index is 2(In progress).

Example(I don’t use this just for understanding):

if ["status" == "1"]; then
   $commit = true;
else
   ["status" != "1"];
   $commit = false;
fi

How could I validate this index? so that it understood 2. You could use JSON?