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Video D_SF_3 is missing a crucial bit of info

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  • Video D_SF_3 is missing a crucial bit of info

    Video D_SF_3 shows how to edit an existing security record however it is missing crucial info that is doing my head in!

    In the server side event "ondialoginitialize" a variable value is hardcoded as dim id as c ="1".

    This variable is used in the "Populate dialog from tables::loaduser" server side action to get the primary key of the security record.

    It's all very well to hardcode the variable in the video, but in reality the variable value will be... umm... variable!

    So admin users of my app can manage security I have a grid that shows security records. On click of a button I am opening a UX to edit the security record exactly as shown in the video.

    The bit I'm struggling with is how would one set the value of the id variable to the value of a record selected in a the grid? I wish that was explained in the video!

    Thanks, Richard.

  • #2
    Re: Video D_SF_3 is missing a crucial bit of info

    Yes... I always thought this was so typically Alpha. Between this and the overuse of Static Data... you're always left with a bit of a gap... a "figure it out for yourself" methodology.

    In your Grid... when you select a security record, set a session variable to the value of your websecurityregisteredusers key.

    Then use that session variable in the Security UX for the value id.

    Code:
    dim id as c = session.currSecurityRegUser

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    • #3
      Re: Video D_SF_3 is missing a crucial bit of info

      re:
      Between this and the overuse of Static Data...
      I must agree on this, nothing real world about static data.
      Insanity: doing the same thing over and over again and expecting different results.
      Albert Einstein, (attributed)
      US (German-born) physicist (1879 - 1955)

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      • #4
        Re: Video D_SF_3 is missing a crucial bit of info

        Assuming you are working in Version 12, I would stay away from those old version 11 videos regarding security.

        For compatibility with IIS, and for going forward, you should probably look at using the Context.Security functions: https://www.alphasoftware.com/docume...urity%20object

        No videos show up about this in the video finder, yet, and if there are any on Viddler then they are impossible to find.

        You can create a new UX from "SecurityFramework-AdminDialog-Create_users_and_assign_roles" template, or one of the other "SecurityFramework*" templates to see how alpha uses those context.security functions.

        Let me apologize in advance if I am giving bad advice. I have just started updating my security UX's to use the new methods so the app will run under both IIS and the traditional WAS without code changes.

        Comment


        • #5
          Re: Video D_SF_3 is missing a crucial bit of info

          Originally posted by peteconway View Post
          re:

          I must agree on this, nothing real world about static data.
          I find this comment totally baffling. I presume you are referring to the fact that in some of the videos on the List control we use static data rather than a sql data source.
          In these particular videos the data source is irrelevant -- That's why we use static data. Makes it easier for anyone to run the component and the point of the video was to show something unrelated to the data. Ultimately all of the data in a List is JSON and it is irrelevant if this json comes from a static data source or from a sql query.

          In the cases where the data source IS relevant (i.e. we are trying to demonstrate a CRUD action for example), we typically use the a SQL datasource and often use Northwind since everyone has that.

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          • #6
            Re: Video D_SF_3 is missing a crucial bit of info

            Good point. And just loading data from sql database (or other) does not make data dynamic.

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            • #7
              Re: Video D_SF_3 is missing a crucial bit of info

              Thanks David,

              I got it working as you suggested using a session variable. I set the session variable on login.

              However I also noticed the following "help" in the ondialoginitialize

              e.arguments = SQL::Arguments object with values for each of the arguments defined in this component. To read a value from arguments: e.arguments.find("argumentName").data. At first I didn't think it was relevant because of the reference to "SQL" but as you probably know it actually exposes the arguments passed into the UX.

              So the approach I ended up going with was:

              On the Edit User UX I defined an argument called ARGUSERID
              This arg is set to the UserID field in my calling grid.
              Then I set the id variable in the ondialoginitialize event like this: dim id as c = e.arguments.find("ARGUSERID").data

              I also use ARGUSERID in the ExecuteServerSideAction("Load Web Security Values::LoadSecurity") action script "Find by Value Source" parameter.

              Comment


              • #8
                Re: Video D_SF_3 is missing a crucial bit of info

                All,
                In post #4, I suggested using the newer context.security properties and methods. However, let me mention these caveats:

                1) When running your app under "Working Preview", the "context" object does NOT exist, but it does exist under "Live Preview" (with security assumed to be off and no access to the defined groups/roles). So, either stick to "Live Preview" for debugging or write your code to check for existence of the "context" object before trying to reference any of its properties or methods.

                2) The a5ws_Get_Groups() function DOES work under Working Preview to return a list of defined roles/groups, which is quite nice since the similar "context.security.GetRoles" method fails under w/p because of (1) above.

                3) The a5ws_Get_Groups() function knows to return the GUID id of the group/role after the name when running under traditional WAS. Under IIS it returns just the group_name because we are not supposed to be concerned with group/role GUIDs under IIS. The unusual thing to be aware of is it also omits the Role GUIDs when running under Working Preview or in the Interactive window. To match what happens when running under traditional WAS, I would have expected the GUIDs to be included under w/p and interactive mode. However, it may have been decided to omit the GUID under w/p and interactive mode because when converting a project to support an IIS publishing profile, all the internal Role GUIDs referenced by your components and pages are replaced with the Role/Group Name.

                4) Both a5ws_Get_Groups() and context.security.GetRoles return a blank string when running under "Live Preview".

                5) context.security.get_groups() does not return the original GUID (or any GUID), so if you are running under traditional WAS and you still need to read/write user role membership using a GUID then you will probably have some difficulty.
                Last edited by RichCPT; 08-02-2018, 04:39 PM. Reason: added # 5

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