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Help with field rule event record canDeleteRecord

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    Help with field rule event record canDeleteRecord

    This is code that I have placed in the field-rules - Events - Record - canDeleteRecord event...

    if (A_DELETING_RECORD = .T.) then


    'check if a record exists in the ordermemo table... if so delete it!

    if exist(orders->ordernum,"ordermemo","Ordernum") = .t. then
    ui_msg_box("There is an associated memo for this Order","It will be deleted.",UI_ATTENTION_SYMBOL+UI_OK)
    Delete_Count as N = RECORD_DELETE("ordermemo", "Ordernum = " + alltrim(str(Orders->Ordernum)))
    'ui_msg_box("ASSOCIATED MEMO WAS DELETED FROM ORDERMEMO TABLE","DETETE_COUNT = " + alltrim(str(delete_Count)),UI_INFORMATION_SYMBOL+UI_OK)
    ui_msg_box("ASSOCIATED MEMO WAS DELETED FROM ORDERMEMO TABLE","Associated memo was deleted from OrderMemo table.",UI_INFORMATION_SYMBOL+UI_OK)
    end if


    'check if records exists in the orderdetail table... if so delete them!
    if exist(orders->ordernum,"orderdetail","Ordernum") = .t. then
    ui_msg_box("There are associated products on this Order","They will be deleted.",UI_ATTENTION_SYMBOL+UI_OK)
    Delete_Count as N = RECORD_DELETE("orderdetail", "Ordernum = " + alltrim(str(Orders->Ordernum)))
    ui_msg_box("ASSOCIATED ORDERED PRODUCTS WERE DELETED FROM ORDERDETAIL TABLE","DELETE_COUNT = " + alltrim(str(delete_Count)),UI_INFORMATION_SYMBOL+UI_OK)
    end if

    'check if records exists in the consultordcpo table... if so delete them!
    if exist(orders->ordernum,"consultordcpo","Ordernum") = .t. then
    ui_msg_box("Consultants have been assigned to Order","Their associations will be deleted.",UI_ATTENTION_SYMBOL+UI_OK)
    Delete_Count as N = RECORD_DELETE("consultordcpo", "Ordernum = " + alltrim(str(Orders->Ordernum)))
    ui_msg_box("ASSOCIATED CONSULTANTS WERE DELETED FROM CONSULTORDCPO TABLE","DELETE_COUNT = " + alltrim(str(delete_Count)),UI_INFORMATION_SYMBOL+UI_OK)
    end if


    end if
    ===================================================================================

    the records are correctly deleted from the ordermemo table...
    but the script fails on the orderdetail delete... the error message stated that "...the table is not in change or enter mode"

    How can I get these records deleted?

    #2
    Re: Help with field rule event record canDeleteRecord

    This is code that I have placed in the field-rules - Events - Record - canDeleteRecord event...
    For what table?
    There can be only one.

    Comment


      #3
      Re: Help with field rule event record canDeleteRecord

      the table is orders.dbf

      Comment


        #4
        Re: Help with field rule event record canDeleteRecord

        I've run into problems with exist() in scripts like this, and use an old fashioned approach:

        Code:
        t=table.open("tablename")
        query.filter=whatever finds the record or records
        query.order=""
        query.options=""
        idx=t.query_create()
        if idx.records_get() > 0
             t.fetch_first()
             while .not. t.fetch_eof()
                  t.change_begin()
                        t.delete()
                   t.change_end()
                   t.fetch_next()
             end while
        end if 
        idx.drop()
        t.close()
        Cole Custom Programming - Terrell, Texas
        972 524 8714
        [email protected]

        ____________________
        "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

        Comment


          #5
          Re: Help with field rule event record canDeleteRecord

          Tom Cone pointed out when you delete a record in a looping script like that Alpha fetches another record, and would then skip every other record, if you t.fetch_next() after deleting the record.

          so this would be better than using the loop

          Code:
          if idx.records_get() > 0
               t.delete_range()
          end if
          the reason is when you delete a record in a looping script like that Alpha fetches another record, and would then skip every other record, if you t.fetch_next() after deleting the record.
          Cole Custom Programming - Terrell, Texas
          972 524 8714
          [email protected]

          ____________________
          "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

          Comment


            #6
            Re: Help with field rule event record canDeleteRecord

            Thanks Martin

            The code that I finally came up with is:

            'check if a record exists in the ordermemo table... if so delete it!
            dim CheckForMemo As L
            CheckForMemo = exist(orders->ordernum,"ordermemo","Ordernum")
            if CheckForMemo = .t. then
            ui_msg_box("There is an associated memo for this Order","It will be deleted.",UI_ATTENTION_SYMBOL+UI_OK)
            tbl = table.open("ordermemo",FILE_RW_SHARED)
            tbl.delete_range("Ordernum = " + alltrim(str(Orders->Ordernum)))
            tbl.close()
            ui_msg_box("ASSOCIATED MEMO WAS DELETED FROM ORDERMEMO TABLE","Associated memo was deleted from OrderMemo table.",UI_INFORMATION_SYMBOL+UI_OK)
            end if

            You code is likely better... but I have learned from bitter experience: "if it ain't broke... don't fix it"!

            Thank you!

            Comment


              #7
              Re: Help with field rule event record canDeleteRecord

              Code:
              tbl.delete_range(
              Just for the record, that IS the code Martin gave you.

              Comment


                #8
                Re: Help with field rule event record canDeleteRecord

                Yes... you are correct...
                I had incorrectly concluded that Martin was still recommending the query instead of exist ()...
                Sorry for confusion.
                Thanks

                Comment


                  #9
                  Re: Help with field rule event record canDeleteRecord

                  Hey David
                  Sure thing compadre. What are we here for if not to be a pain in the neck?

                  Comment

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