Authentication process issue

[Uros Nedic]

Now I have issue with authentication mechanism. I have entered the following code:

package code 

package snippet 

import net.liftweb.http._

import scala.xml.{NodeSeq, Text}

import net.liftweb.util._

import net.liftweb.common._

import code.lib._

import Helpers._

import code.model.User

class Authentication {

  var user: User = new User

  var email: String = _ 

  var password: String = _ 

  def authform(xhtml: NodeSeq): NodeSeq = { 

    bind("auth", xhtml, 

      "email" --> S.text(S.param("email").openOr(""), email = _) % 

("size" -> "10") % ("id" -> "email"), 

      "password" --> S.password("", password = _) % ("size" -> "10") % 

("id" -> "password"), 

      "submit" --> S.submit(S.?("Send"), ignore => authenticate) 

    ) 

  } 

  def authenticate = { 

    User.find(By(User.email, email)) match { 

      case Full(dbuser) if (dbuser.password.match_?(password)) => User.logUserIn(dbuser) 

      case Full(dbuser) => error("wrong password") 

      case Empty => notice("sending verification mail") 

    } 

  } 

} 

and as a result got:

[info]   Source analysis: 1 new/modified, 0 indirectly invalidated, 0 removed.

[info] Compiling main sources...

[error] C:\Users\WYG\Desktop\lift_basic\src\main\scala\code\snippet\Authentication.scala:19: value t

ext is not a member of object net.liftweb.http.S

[error]       "email" --> S.text(S.param("email").openOr(""), email = _) %

[error]                     ^

[error] C:\Users\WYG\Desktop\lift_basic\src\main\scala\code\snippet\Authentication.scala:28: not fou

nd: value By

[error]     User.find(By(User.email, email)) match {

[error]               ^

[error] C:\Users\WYG\Desktop\lift_basic\src\main\scala\code\snippet\Authentication.scala:29: value p

assword is not a member of Any

[error]       case Full(dbuser) if (dbuser.password.match_?(password)) => User.logUserIn(dbuser)

[error]                                    ^

[error] C:\Users\WYG\Desktop\lift_basic\src\main\scala\code\snippet\Authentication.scala:29: type mi

smatch;

[error]  found   : Any

[error]  required: code.model.User.TheUserType

[error]       case Full(dbuser) if (dbuser.password.match_?(password)) => User.logUserIn(dbuser)

[error]                                                                                  ^

[error] C:\Users\WYG\Desktop\lift_basic\src\main\scala\code\snippet\Authentication.scala:31: not fou

nd: value notice

[error]       case Empty => notice("sending verification mail")

[error]                     ^

[error] 5 errors found

[info] == compile ==

[info]

[info] == copy-resources ==

[info] == copy-resources ==

[error] Error running compile: Compilation failed

[info]

Any hint what I'm doing wrong and how to fix it?

Thanks,

Uros

[Aditya Vishwakarma]

For compiler errors :

1. text is in SHtml . S stands for Session while SHtml generates Html codes
2. By exists in lift.mapper which you haven't included
3.  3 and 4 should go away if you have mapper imported
4. notice exists in S. So do S.notice.
   

That should solve the compiler errors.
Aditya Vishwakarma

--
Lift, the simply functional web framework: http://liftweb.net
Code: http://github.com/lift
Discussion: http://groups.google.com/group/liftweb
Stuck? Help us help you: https://www.assembla.com/wiki/show/liftweb/Posting_example_code

[Stefan Bradl]

At first you have to use SHtml in some cases (not S)

To use "By" you have to import net.liftweb.mapper._

notice is a method from S (use S.notice)

[Uros Nedic]

I modifed the code according to your instructions. Now I have another weird issue.

My rendered html page shows only email field but not password neither button.

Snippet follows:

<p class="lift:surround?with=frontpage;at=content"> 

<lift:Authentication.authform form="POST"> 

  <label for="email">Email:</label> 

  <auth:email /> 

  <br/> 

  <label for="password">Password:</label> 

  <auth:password /> 

  <br/> 

  <auth:submit/> 

</lift:Authentication.authform> 

</p>

Modified Authentication class is:

class Authentication {

  var user: User = new User

  var email: String = _ 

  var password: String = _ 

  def authform(xhtml: NodeSeq): NodeSeq = { 

    bind("auth", xhtml, 

      "email" -> SHtml.text(S.param("email").openOr(""), email = _) % ("size" -> "10") % ("id" -> "email"), 

      "password" -> SHtml.password("", password = _) % ("size" -> "10") % ("id" -> "password"), 

      "submit" -> SHtml.submit(S.?("Send"), () => authenticate)  

    )

  } 

  def authenticate = { 

    User.find(By(User.email, email)) match { 

      case Full(dbuser) if (dbuser.password.match_?(password)) => User.logUserIn(dbuser) 

      case Full(dbuser) => S.error("wrong password") 

      case Empty => S.notice("sending verification mail") 

    } 

  } 

}

Uros

[Uros Nedic]

After whole day of analyzing my code I still do not have idea WHY Lift doesn't want to render password field

and submit button?

Any hint would be more than welcomed!

Thanks in advance,

Uros

[Uros Nedic]

If found where I made mistake! In snippet code I had something like

<p class="lift:...">

</p>

Instead of <p> tag, I have used <div> tag as has been suggested in

sticky post regarding HTML5 vs XHTML.

Regards,

Uros

[David Pollak]

If you're using Html5, then <foo:password/> will be ignored by the Html5 parser.  Please see http://groups.google.com/group/liftweb/browse_thread/thread/1fec5ed6e44b5b57

Please also post example code (see https://www.assembla.com/wiki/show/liftweb/Posting_example_code ) if you have questions that aren't answered the first few go-arounds.  Issues that are not obvious if you copy/paste a little code into the message are often obvious if you have runnable code.

 

Regards,

Uros

--
Lift, the simply functional web framework: http://liftweb.net
Code: http://github.com/lift
Discussion: http://groups.google.com/group/liftweb
Stuck? Help us help you: https://www.assembla.com/wiki/show/liftweb/Posting_example_code

--

Visi.Pro, Cloud Computing for the Rest of Us http://visi.pro

Lift, the simply functional web framework http://liftweb.net

Follow me: http://twitter.com/dpp
Blog: http://goodstuff.im

[Uros Nedic]

Thank you for reply. I will read carefully procedures how to post longer and more complicated code.

I thought code I already post was a rather simple one. In a few days I plan to enter into the world of

Lift Actors and see how they differ from Scala Actors. That would be rather tough I believe.

Regards,

Uros

[David Pollak]

Lift actors mostly differ in quality of implementation, but not concepts from Scala actors.

--