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HomeHomeArchived Discus...Archived Discus...Developing Under Previous Versions of .NETDeveloping Under Previous Versions of .NETASP.Net 2.0ASP.Net 2.0GetUser and Hydrated profileGetUser and Hydrated profile
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8/17/2006 5:45 PM
 
Rodney Joyce


www.pokerdiy.com
Joined: 4/28/2004
Posts: 2796
Hello,

I am working on some code that uses the core profile properties (eg. the Website profile property, if it exists) and looking at this GetUser method, I am a little confused:

UserInfo userInfo = UserController.GetUser(base.PortalId, userID, false);

The 3rd paramater is whether the user shoud be hydrated or not (bool IsHydrated). To improve performace, I set it to false, but I was surprised to that the userInfo object still contained the extended profile info, like

lnkWebsite.Text = userInfo.Profile.Website;

Have I misunderstood what IsHydrated does?

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8/18/2006 1:04 AM
 
Nigel Liefrink

Joined: 2/12/2006
Posts: 20

From memory I think the IsHydrated parameter specifies whether to grab Data from the ASP memberhship tables.

So that the objUser.Membership object is populated by IsHydrated.

Either that or theres some caching going on.

 

 

 
 
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9/8/2006 10:50 AM
 
Daniel Struve


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Joined: 2/11/2003
Posts: 475
Rodney,  how did go understanding isHydrated?
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9/13/2006 6:21 PM
 
Dwayne Baldwin


Joined: 4/21/2004
Posts: 589

Actually UserInfo is progressively hydrated on demand - if you don't access the extended properties (either Profile or Membership) they will not be loaded - you will find this behavior applies separately to UserInfo.Profile and UserInfo.Membership within the get properties (member variable accessor) functions within Components/Users/UserInfo.vb.

You are correct in your thinking the way it *should* work, but in reality the IsHydrated flag is simply dropped (ignored) by the SqlDataProvider stored proc.

The hydration mechanism used in the UserInfo, UserController, UserMembership and UserProfile classes seems to work ok for reading properties, but it really doesn't work (or make sense) if you assign properties.

IMHO, the process needs a little refactoring.

Dwayne J. Baldwin
 
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9/13/2006 8:58 PM
 
Charles Nurse


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Joined: 2/9/2004
Posts: 3652
This is true.

In the most part it is effectively ignored. 

As soon as you go UserInfo.Profile.Anyproperty it will hydrate on demand.  So you can never really tell if it is hydrated or not.  Even stepping thru on debug will hydrate the profile if you look at the property in the Watch window :)

When I refactored the code into the new providers I kept most of the logic the same (unless I had a reason to change it) and this was the way it worked in 3.2.

However if you get all users for a drop down combo, for instance, and never access the profile property ie use UserInfo.DisplayName for instance it should not hydrate the profile for each user saving unneccessary database calls.



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