How can I test against a query executing without errors within a transaction?

I'm running two queries within a ColdFusion transaction (ColdFusion 开发者_如何转开发9, MySQL 5):

private boolean function updates()
{
    transaction
    {
        local.foo = new Query();
        local.foo.setSql("UPDATE foo SET bar = foo");
        local.foo.execute();

        local.bar = new Query();
        local.bar.setSql("UPDATE bar SET foo = bar");
        local.bar.execute();
    }

    if (both updates were successful)
    {
        return true;
    }
    else
    {
        return false;
    }
}

I would like to know the following: What should I replace both updates where successful in the if() with to test if the queries executed correctly?

---

This solution swallows the errors, and leaves it to the calling function to examine and rethrow them. As such, I changed your return value on you. It's a struct with a boolean and an error array.

local.result.bool = false;
local.result.error = ArrayNew(1);
TRANSACTION action="begin" 
{
 try{
    local.foo = new Query();
    local.foo.setSql("UPDATE foo SET bar = foo");
    local.foo.execute();
    local.bar = new Query();
    local.bar.setSql("UPDATE bar SET foo = bar");
    local.bar.execute();
 }
 catch(any excpt){
    ArrayAppend(local.result.error, excpt);
 }finally{
   if(ArrayLen(local.result.error) gt 0){
      transactionRollback();
    }else{
      local.result.bool = true; 
    }
 } 
}
return local.result;