ColdFusion: Can you pull out a unique record from a query using recordCount?

Question

It\'s a bit of tricky question, however, my page for most rated bands displays the band logos in order of how high they have been rated. My only problem is i want to count throu

Answer 1

It sounds like what you'd like to get is a collection of even-numbered records and a collection of odd-numbered records. In Coldfusion 10 or Railo 4, you can use groupBy() from Underscore.cfc to split up your query result into manageable sub-sets, like so:

_ = new Underscore();// instantiate the library
groupedBands = _.groupBy(topBands, function (val, index) {
   return index % 2 ? "odd" : "even";
}); 

This returns a struct with two elements odd and even, each containing an array of records which are odd or even. Example result:

{
   odd: [{name: "Band one"}, {name: "Band three"}],
   even: [{name: "Band two"}, {name: "Band four"}]
}

Splitting your results into logical sub-sets makes the code more readable:

   
      
#groupedBands.odd[i].name#
      
#groupedBands.even[i].name#
   

You'll also be able to use those sub-sets in other places on your page if you need to.

Note: I wrote Underscore.cfc