one way would be to build a string of all elements of 1 field, get the hash of this string and include that as a hidden field, then you do the same for the posted info and compare both hash strings
----- Original Message ----- From: "Robertson-Ravo, Neil (RX)" <[EMAIL PROTECTED]> To: "CF-Talk" <cf-talk@houseoffusion.com> Sent: Friday, May 26, 2006 11:14 AM Subject: RE: Only update DB if data has changed? > Should be easy enough and no doubt several way s to achieve this....both > in > CF Code and in SQL. One way would be to load the records at page load > into > a structure and then on submit comparing both the pre-edited and post > edited > form struct to see what has changed etc... > > > > -----Original Message----- > From: Andy Mcshane [mailto:[EMAIL PROTECTED] > Sent: 26 May 2006 10:25 > To: CF-Talk > Subject: Only update DB if data has changed? > > Hi all, does anybody have any ideas how I could best implement the > following; > > I have a page that loads anything up to about 30 individual records at a > time. Each record consists of 17 fields of data. All the records are > displayed on the page to give the user the option of editing any > individual > field. When the user then submits the page I need to be able to work out > which records have had data changed and only do database updates for those > specific records. Having an individual submit for each record is not an > option, the whole page must be submitted as one but only records that have > changed should be updated. Can anybody suggest a method for doing this? > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:241548 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
