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How to copy an existing record as a basis for a new record

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    #1

    How to copy an existing record as a basis for a new record

    How do we copy an existing record except the primary key as a basis for a new record?I need to get all the data except for the primary key because the primary key is based in a simple default expression.
    Tags: None
    #2
    Re: How to copy an existing record as a basis for a new record

    Not at computer right now with alpha. I seem to remember previous() or something like that.
    Dave Mason
    [email protected]
    Skype is dave.mason46

    Comment

      #3
      Re: How to copy an existing record as a basis for a new record

      The <TBL>.RECORD_TO_VARS() method populates the Vars pointer variable with the values of the current record's fields. (hint: don't use the primary key sub variable)
      There can be only one.

      Comment

        #4
        Re: How to copy an existing record as a basis for a new record

        Thanks Dave and Stan, I found something on learn alpha.com http://www.learn alpha.com/duplicate/duplicate.htm, this thread is now closed, for newbies like me, you may visit http://www.learn alpha.com for more info.

        Comment

          #5
          Re: How to copy an existing record as a basis for a new record

          Stan to follow on...
          Then you can use the pointer like dot variables to individually (by hand coding each field) write values back to the new duplicate record
          I've just been trying (unsuccessfully i might add) to use a *for_each( ) function to auto-reassign.
          Do you know of a way?
          I've in the past used copy record/s to, change the key value in the temp table, and then a blob back to the new copy record - it works but cumbersome with many child records, but less programming than longhand individual fields.

          Jet - I cant remember why it wouldnt work for my case, but Dr Peter Waynes tips offer great learning value
          Last edited by Ray in Capetown; June 17, 2012, 05:57 PM.

          Comment

            #6
            Re: How to copy an existing record as a basis for a new record

            Ray, Seems what I am trying to accomplish is the same as yours, I want to copy/duplicate an existing record in an entire set so that users will just change some fields for the new record, just like the example in xbasic for everyone, wherein we duplicate the Invoice because customers might order the same items over and over again.I have tested it in only in two tables and it works, I hope it will follow with many tables because in the app that I'm trying to create, there are many tables on a set that I want to duplicate.My problem is how to assign custom autoincrement, I might ask in another thread but I will just mention it here, the Custom increment that I am trying to implement is to be based on a variable plus an autoincrement of numbers. example is, a variable might contain 3 letters, ABC + an autoincrement of numbers say 0000100, everytime I add a new record based on the copy/duplicate operation that i created based on Dr. Wayne's tip, the primary key should contain ABC0000101, ABC0000102, ABC0000103 and so on.

            Comment

              #7
              Re: How to copy an existing record as a basis for a new record

              Hmmm....

              I do this to some degree with a lookup. I look up in a dropdown on last name(the id field is already set and saved - in the same record on a set) and copy all the data I want to vars. It then gets placed into fields on the form. It took some doing, making the vars and coding the data into the new record, but it works flawlessly.
              This particular set has about 9 tables in it(I think).
              Dave Mason
              [email protected]
              Skype is dave.mason46

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