Detect if there was any changes befor to Save the Form

[Robert Iliuta]

Hallo,


In a clarion app I have this code before Take Completed to detect if there was any changes.

  ! SALVEAZA data si user
  IF NOT SELF.Primary.Me.EqualBuffer(SELF.Saved)
     MEM:Data_Change = today()
     MEM:Time_Change = CLOCK()    !Save the system time
     MEM:User_change = glo_username
     MEM:Trimestrul_Change = gsQTR(today())
     MEM:Anul_Change = year(today())
     g:DataChanged = 1
  END

What is the equivalent code for Web Server?

Thank you,
Robert

[Bruce]

Hi Robert,

There's no direct comparison in the WebServer. Because of the multi-threaded, asyncronous nature of the web - not least the ability for a user to abandon a form without clicking save or cancel - it's not as straight-forward as for a Windows app.

Making a copy of the record before editing commences is something I'm thinking of adding as an option.

Cheers
Bruce

[Robert Iliuta]

Any workaround for this ?

Thank you,
Robert

[kevin plummer]

I use X-Files. It's a quick and easy way to save a record or bunch of records if you have child records and then easy to pull back into a group or queue when you need them. Actually you can't use Queues so I use the In-memory driver.

[rjolda]

Hi,
What is the persistence of IMM file?  Does it persist as long as the SERVER Exe is running and then die when the SERVER exe is closed?
THanks,
Ron Jolda

[kevin plummer]

no it ends with the Thread. That is why I write the record or records to XML and then load it back into the IMD at the validate routine

[Alberto]

I dont know the max lenght of a Session Variable but you could save the record in one session var and compare with it.
Hope this helps
Alberto