Help with ASP.NET Membership

VerbatimBOT · May 2nd, 2007, 09:46 AM

Hi everyone!
I'm having trouble with my SQL query.
The database scheme is http://img237.imageshack.us/img237/2484/schemahx1.gif.

The query I am trying to fix is

Code:

SELECT m.email
FROM aspnet_users u
INNER JOIN aspnet_usersInRoles uir ON u.userId = uir.userID
RIGHT OUTER JOIN aspnet_membership m ON u.userID = m.userID
INNER JOIN aspnet_custom_registrants cr ON m.userID = cr.userID
LEFT OUTER JOIN aspnet_roles r ON r.roleID = uir.roleID
WHERE cr.receiveNewsletter = 1
/* if I add this line of query, I get no results at all
AND r.roleName = 'user' */

I believe you all noticed what I'm trying to do. I need a list of emails of users in a specific role who are subscribed for newsletter.

Thank you in advance!
Aleksandar

dparsons · May 2nd, 2007, 09:56 AM

Try this instead:

SELECT m.email
FROM aspnet_users u
INNER JOIN aspnet_usersInRoles uir ON u.userId = uir.userID
RIGHT OUTER JOIN aspnet_membership m ON u.userID = m.userID
INNER JOIN aspnet_custom_registrants cr ON m.userID = cr.userID
LEFT OUTER JOIN aspnet_roles r ON r.roleID = uir.roleID AND r.roleName = 'user'
WHERE cr.receiveNewsletter = 1

================================================== =========
Read this if you want to know how to get a correct reply for your question:
http://www.catb.org/~esr/faqs/smart-questions.html
================================================== =========
Technical Editor for: Professional Search Engine Optimization with ASP.NET
http://www.wiley.com/WileyCDA/WileyT...470131470.html
================================================== =========
Why can't Programmers, program??
http://www.codinghorror.com/blog/archives/000781.html
================================================== =========

VerbatimBOT · May 2nd, 2007, 10:04 AM

That didn't help.
Why did you put "AND r.roleName = 'user'" near the "LEFT OUTER JOIN aspnet_roles r ON r.roleID = uir.roleID"?
Shouldn't this be a simple INNER JOIN query?

dparsons · May 2nd, 2007, 10:20 AM

I have had problems with querys where I place a field from a joined table in my WHERE clause and fixed the problem by making it one of my join parameters, was not sure if you were having the same problem.

In any case if the statement returns a result set without: AND r.roleName = 'user' then i am going to bet that the column does not contain just 'user'

What happens if you query that table with a simple select:

SELECT * from aspnet_roles where roleName = 'user'

================================================== =========
Read this if you want to know how to get a correct reply for your question:
http://www.catb.org/~esr/faqs/smart-questions.html
================================================== =========
Technical Editor for: Professional Search Engine Optimization with ASP.NET
http://www.wiley.com/WileyCDA/WileyT...470131470.html
================================================== =========
Why can't Programmers, program??
http://www.codinghorror.com/blog/archives/000781.html
================================================== =========

VerbatimBOT · May 2nd, 2007, 11:14 AM

Code:

SELECT * from aspnet_roles where roleName = 'user'

returns expected results of 1 row.
I don't know if you have some experience with asp.net membership tables, but here's how it works: when you create a membership user, the aspnet_users table contains 2 rows for each user. One record is related to the record from the aspnet_membership table, and the other one is related to aspnet_usersInRoles.
I suppose this is where the problem begins.

Imar · May 2nd, 2007, 01:16 PM

Quote:

quote:Originally posted by VerbatimBOT
but here's how it works: when you create a membership user, the aspnet_users table contains 2 rows for each user. One record is related to the record from the aspnet_membership table, and the other one is related to aspnet_usersInRoles.

I hate to spoil the fun, but this is *not* how it works.

When you create a user and add it to a role, you get the following records:

aspnet_Users
1 record that contains the base user data used by all providers. User ID for example: 27fea12d-a12d-4463-a3f6-d0491aca1316

aspnet_Membership
1 record, with all the Membership data for a user.
User ID is the same as in the _Users table as it is in fact a reference: 27fea12d-a12d-4463-a3f6-d0491aca1316

aspnet_UsersInRoles
1 record: a link between a RoleID (for example 43861e10-4666-474d-ab11-700c95e536bf) and the User's ID from the aspnet_Users table (27fea12d-a12d-4463-a3f6-d0491aca1316)

If you're seeing something else, something is seriously wrong.

Cheers,

Imar

---------------------------------------
Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004
Want to be my colleague? Then check out this post.

VerbatimBOT · May 2nd, 2007, 01:58 PM

Yes, I just found out that my membership and role provider definitions were wrong. I made a small roleProvider correction in web.config and everything works perfect now.
The only strange thing is that when I started implementing custom membership and role providers, I've noticed from the start that I always get 2 records in my aspnet_users table. Normally, I asked around about the issue, and never got the answer about it. So, I started to believe that's normal! :)
I wanna thank YOU and dparsons for helping me.

Cheers! :)