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List Control - Server-Side Filter Expression

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  • List Control - Server-Side Filter Expression

    I have a list control in a UX, based on a mySQL table.

    I want to apply server-side filters, as in Selwyn's video

    I am using Action Javascript List Control Actions - Filter list - Server-side.

    I 'm having trouble with the filter expression when I try to filter on a column in a joined table. It works fine using a column in the parent table: Status = 'Booked' where Status is the column name and Booked is the value I want to match.

    Here is the sql query from the list builder:

    SELECT DISTINCT loads.Load_ID, loads.FreightBillNum, loads.ShipFrom, loads.DeliverTo, loads.Status, loads.DateRec, stops.Stops_PK, stops.PUorDEL, stops.StopDate 
    FROM loads loads
    	 INNER JOIN stops stops
    		 ON  loads.Load_ID = stops.Loads_FK  
    WHERE loads.DateRec BETWEEN :whatStartDate AND :whatEndDate 
    GROUP BY loads.DateRec, loads.Status, loads.Load_ID 
    ORDER BY loads.FreightBillNum
    The parent table is the loads table and the child is the stops table.

    I have unbound date controls on the UX called StartDate and EndDate that are supplying the argument values for :whatStartDate and :whatEndDate.

    I want the list to return a loads record if any of the child stops records has a value in the StopDate column that matches the StartDate control.

    The filter expression should be something like: stops.StopDate = {StartDate} - but that does not work.

  • #2
    Re: List Control - Server-Side Filter Expression

    It seems the issue here is not that the filter expression fails to recognize the StopDate column because it is in a joined child table.

    If I use this argument in the filter: 11-22-2016|||D|whateverDate

    And then use this filter expression: stops.StopDate = :whateverDate - it works just fine. But it is hard coding the date.

    I need to use a date from a control where the user can select a date.


    • #3
      Re: List Control - Server-Side Filter Expression

      How is your argument :whatStartDate set up? You can set the value of an argument to be set from the value of a control. Then if you change the control it should update the argument if you refresh the list.


      • #4
        Re: List Control - Server-Side Filter Expression

        Apparently the value of a control on a UX is not available to the List Control Action - Filter list - Server-side, to be used as an argument.

        At least I have not figured out how to pass the value of a control to the builder.

        The builder allows arguments, but it only seems to allow explicit values, like my example above: 11-22-2016|||D|whateverDate


        • #5
          Re: List Control - Server-Side Filter Expression

          You cannot use a control directly, but you CAN use an argument and the argument value can be set to the value of a control. I am not at my computer otherwise I would send you an image.


          • #6
            Re: List Control - Server-Side Filter Expression

            When you get a chance, I would like to know how to do that.