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using an argument in where statement

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    #1

    using an argument in where statement

    I have this statement for listing a batch of records. I am trying to use an argument in the WHERE clause like this. This doesn't work. Is this a limitation in Alpha?
    The argument district comes for a session variable that is assigned when a user logs in. So what we are trying to accomplish here is that if the user is in district AD, they should see all records, otherwise they can only see the records from their own district.

    SELECT *, tkt_id AS v_tktid, tkt_id AS tkt_id2
    FROM tickets
    WHERE COMPCODE = :compcode AND if(:district = 'AD', district is not null , district=:district)

    Any ideas?

    Thanks!

    Mike
    Mike Reed
    Phoenix, AZ
    Tags: None
    #2
    Re: using an argument in where statement

    Mike - what SQL are you using. In MS Sql, for instance, there is no IF() statement in a query.

    http://stackoverflow.com/questions/6...-an-sql-select
    -Steve
    sigpic

    Comment

      #3
      Re: using an argument in where statement

      HI,
      I am using MySQL, soon to switch to MariaDB.

      Thanks!

      Mike
      Mike Reed
      Phoenix, AZ

      Comment

        #4
        Re: using an argument in where statement

        Mike... where are you using this statement? Grid, XBasic, UX, List Control?

        Comment

          #5
          Re: using an argument in where statement

          I would load it at the argument level if the district = 'AD' then '%' else 'district'

          SELECT *, tkt_id AS v_tktid, tkt_id AS tkt_id2
          FROM tickets
          WHERE COMPCODE = :compcode AND district like :district

          Comment

            #6
            Re: using an argument in where statement

            It is being used in a grid. The grid lists work orders. So if a person is a member of the Admin district, then they should see all the work orders. If not, then they should see only those work orders that are from their district.
            The work around now is to create 2 grids, one using the district restriction and one without the restriction. Both grids are in the UI Tabbed interface and we use security settings to determine which grid is available for the user. While that works, it means 2 grids to maintain and it has slowed down the initial display of the UI Tabbed system. Besides, it is just plain redundant, so I'm trying to find a way to make it better.
            Here is the grid:
            Screen Shot 2015-12-08 at 7.55.33 AM.png

            The interesting thing is that it seems possible to do this. Here is the same grid that uses the formula for display of records. The difference is that the one below is using a Table or View, where the one I need to use is based on a SQL Select Statement. I need to use the SQL Select Statement because of the 2 extra calculated fields.
            Screen Shot 2015-12-08 at 8.14.33 AM.png

            Thanks,
            Mike
            Mike Reed
            Phoenix, AZ

            Comment

              #7
              Re: using an argument in where statement

              You can use one grid. Just modify the argument like I did before you call the grid.

              Comment

                #8
                Re: using an argument in where statement

                Mike,

                I do something similar to what you are doing, but the selection rules are a bit more complex. In our case,
                The client can always see the project
                The owner can always see the project but only if they are the current owner. In our business, it is common for equipment to be sold to new owners from time to time. In that case, the original owner cannot see the project but the new owner can.
                The consultant can see the project but only if the owner gives them permission.

                So, I've finally hit on a combination of a MariaDB view and a filter in alpha.

                This is for a list control. In the view I have
                projects.CLIENT_COMPANY_ID AS CLIENT_COMPANY_ID,
                projects.OWNER_COMPANY_ID AS OWNER_COMPANY_ID,
                projects.CONSULTANT_COMPANY_ID AS CONSULTANT_COMPANY_ID,
                projects.CURRENT_OWNER_COMPANY_ID AS CURRENT_OWNER_COMPANY_ID,
                projects.CAN_ACCESS_PORTAL AS CAN_ACCESS_PORTAL,
                IF( projects.CURRENT_OWNER_COMPANY_ID > 0,projects.CURRENT_OWNER_COMPANY_ID,
                projects.OWNER_COMPANY_ID ) AS OWNER_ID,
                IF( projects.CAN_ACCESS_PORTAL = 1,projects.CONSULTANT_COMPANY_ID,-1)
                AS CONSULTANT_ID,

                and in alpha, I have
                FROM v_job_status_counts_open
                WHERE CLIENT_COMPANY_ID = :argCoid OR OWNER_ID = :argCoid OR CONSULTANT_ID = :argCoid

                argCoid is the company id assigned when the person logs in.

                Works well and it is fast.

                I build different components for admin and customers because fo the complexity, but also because they need to see different things.
                Pat Bremkamp
                MindKicks Consulting

                Comment

                  #9
                  Re: using an argument in where statement

                  Originally posted by Mike Reed View Post
                  I have this statement for listing a batch of records. I am trying to use an argument in the WHERE clause like this. This doesn't work. Is this a limitation in Alpha?
                  The argument district comes for a session variable that is assigned when a user logs in. So what we are trying to accomplish here is that if the user is in district AD, they should see all records, otherwise they can only see the records from their own district.

                  SELECT *, tkt_id AS v_tktid, tkt_id AS tkt_id2
                  FROM tickets
                  WHERE COMPCODE = :compcode AND if(:district = 'AD', district is not null , district=:district)

                  Any ideas?

                  Thanks!

                  Mike
                  Hi Mike,

                  I'm not sure IF statements in the WHERE clause work. You could re-write your test to get rid of your IF statement like this:

                  Code:
                  SELECT *, tkt_id AS v_tktid, tkt_id AS tkt_id2
FROM tickets
WHERE COMPCODE = :compcode AND ((:district = 'AD' AND district is not null) OR (:district != 'AD' AND district = :district))
                  Alpha Anywhere latest pre-release

                  Comment

                    #10
                    Re: using an argument in where statement

                    THANKS!!

                    You folks are great. I have it working now. Sarah, I used your suggestion for this grid, one because it was simple and I could get it up quickly. Thank you as well, Pat because your suggestion will work well in different scenario. Couldn't have done it without you.

                    Have a great day.

                    Mike
                    Mike Reed
                    Phoenix, AZ

                    Comment

                      #11
                      Re: using an argument in where statement

                      Nice work Sarah!

                      Comment

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