Trigger program

[Guest.Visitor]

Hi there! I encountered a situation where I need to make changes to the record in the trigger program before it is being written to a physical file. For example: If my file has 4 fields in it and user is allowed to input data into 3 fields , my trigger program on the file being written to should fill in the data to the 4th field and then allow the insert operation to complete.The result should be that all 4 fields filled in with values when we query the data from the file.. Is it possible? Let me know how to do it... Thanks, Anil

[D.Handy]

Anil, Is it possible? Let me know how to do it... It became possible in V3R2 and V3R7 when they added the ALWREPCHG(*YES) option. The default is *NO for backward compatability, and to keep you from inadvertently changing the record. The program must trigger on the *BEFORE event (by the time *AFTER comes, it is too late). And it must specify ALWREPCHG(*YES) to "allow repeating change", i.e., allow the trigger to change the record buffer too. Then just change the buffer image in the input parameter. Do not do attempt to use disk I/O (to this record). Any buffer changes you make will be reflected when the data is written to the disk. Doug

[Guest.Visitor]

I have posted the trigger program template our group uses on http://www.mvmills.com/is Feel free to copy it and modify for your purposes. Let me know if I can help further.