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New CF8 File Functions Tutorial

ColdFusion Tutorial #14

This tutorial shows you some of the new ColdFusion 8 file based functions. It takes a file and appends lines to it until it reaches a size then starts again.

demo.cfm

Line 1 defines which file we want to append.

Lines 2-4 do a check to see if the file exists using fileExists and if not creates it using fileWrite.

Line 5 opens the file using fileOpen in append mode and sets it to variables.fileObj that we can refer to later.

Lines 6-8 check if the file has reached 2000 bytes and starts again if it has.

Line 9 uses the fileWriteLine function to write a new line including new line characters with the current date and time and a uuid. This can be repeated as many times as needed.

Line 10 closes the file object.

Lines 12 & 13 simply read the file back in and display it.