使用MySql的Webmatrix.WebData.WebSecurity无法正常工作。 WebSecurity.UserExists（）检查中引发SQL语法错误

Question

I had a project done in MSSQL. I migrated MSSQL to MySql because i thought Webmatrix.WebData will support MySql also. WebSecurity initialiation was successful.

if (!WebSecurity.Initialized)
     {
          securityService.Initialize(
          "sqlserver",
          "UserProfile",
          "UserId"
          "UserName");
      };` 

Above code executed successfully. But if fails to execute the following part,

 if (!WebSecurity.UserExists("user"))
        {
            WebSecurity.CreateUserAndAccount("user", "password");
        }

The check WebSecurity.UserExists("user") is failing. This is the error message-

An exception of type 'MySql.Data.MySqlClient.MySqlException' occurred in MySql.Data.dll but was not handled in user code

Additional information: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '[UserId] FROM [UserTable] WHERE (UPPER([UserName]) = UPPER('user'))' at line 1

Please help me with this issue.

Answer 1

The WebSecurity shipped with ASP.Net (The one used in your code above) has some Microsoft T-SQL syntax embedded in the code. There are little differences between the MySQL syntax and MSSQL which probably accounts for the error.

From the error shown, I can see the CreateUserAndAccount method in WebSecurity somehow attempts to a execute the T-SQL statement .... [UserId] FROM [UserTable] WHERE (UPPER([UserName]) = UPPER('user')) however, while this would work in MSSQL, the square brackets "[" and "]" would cause errors in MySQL.

A work around will be to use MySql.Web.Security.MySqlWebSecurity.CreateUserAndAccount("user", "password") , of cause,you can add a using statement or use it that way.

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