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lib/ASP4.pm  view on Meta::CPAN

  <%@ Page UseMasterPage="/masters/global.asp" %>
  
  <asp:Content PlaceHolderID="meta_title">Register</asp:Content>
  
  <asp:Content PlaceHolderID="headline">Register</asp:Content>
  
  <asp:Content PlaceHolderID="main_content">
  <%
    # Sticky forms work like this:
    if( my $args = $Session->{__lastArgs} ) {
      map { $Form->{$_} = $args->{$_} } keys %$args;
    }
    
    # Our validation errors:
    my $errors = $Session->{validation_errors} || { };
    $::err = sub {
      my $field = shift;
      my $error = $errors->{$field} or return;
      %><span class="field_error"><%= $Server->HTMLEncode( $error ) %></span><%
    };
  %>
  <form id="register_form" method="post" action="/handlers/myapp.register">
    <p>
      <label>Email:</label>
      <input type="text" name="email" value="<%= $Server->HTMLEncode( $Form->{email} ) %>" />
      <% $::err->("email"); %>
    </p>
    <p>
      <label>Password:</label>
      <input type="password" name="password" />
      <% $::err->("password"); %>
    </p>
    <p>
      <label>Confirm Password:</label>
      <input type="password" name="password2" />
      <% $::err->("password2"); %>
    </p>
    <p>
      <input type="submit" value="Register Now" />
    </p>
  </form>
  </asp:Content>

The form submits to the URL C</handlers/app.register> which means C<handlers/app/register.pm>

File: C<handlers/app/register.pm>

  package app::register;
  
  use strict;
  use warnings 'all';
  use base 'ASP4::FormHandler';
  use vars __PACKAGE__->VARS; # Import $Response, $Form, $Session, etc
  use App::db::user;
  
  sub run {
    my ($self, $context) = @_;
    
    # If there is an error, return the user to the registration page:
    if( my $errors = $self->validate() ) {
      $Session->{validation_errors} = $errors;
      $Session->{__lastArgs} = $Form;
      $Session->save;
      return $Response->Redirect( $ENV{HTTP_REFERER} );
    }
    
    # Create the user:
    my $user = eval {
      App::db::user->do_transaction(sub {
        return App::db::user->create(
          email     => $Form->{email},
          password  => $Form->{password},
        );
      });
    };
    
    if( $@ ) {
      # There was an error:
      $Session->{validation_errors} = {email => "Server error.  Sorry!"};
      $Session->{__lastArgs} = $Form;
      $Session->save;
      return $Response->Redirect( $ENV{HTTP_REFERER} );
    }
    else {
      # No error - Sign them in:
      $Session->{user_id} = $user->id;
      $Session->{msg} = "Thank you for registering!";
      $Session->save;
      
      # Redirect to /profile.asp:
    return $Response->Redirect("/profile.asp");
    }# end if()
  }
  
  sub validate {
    my ($self) = @_;
    
    $self->trim_form;
    
    my $errors = { };
    no warnings 'uninitialized';
    
    # email:
    if( length($Form->{email}) ) {
      # Basic email validation:
      unless( $Form->{email} =~ m{[^@]+@[^@]+\.[^@]+} ) {
        $errors->{email} = "Invalid email address";
      }
    }
    else {
      $errors->{email} = "Required";
    }
    
    # password:
    unless( length($Form->{password} ) {
      $errors->{password} = "Required";
    }
    
    # password2:
    if( length($Form->{password2}) ) {
      if( length($Form->{password}) ) {
        unless( $Form->{password} eq $Form->{password2} ) {
          $errors->{password2} = "Passwords don't match";
        }
      }
    }
    else {
      $errors->{password2} = "Required";
    }
    
    # Bail out of we already have errors:
    return $errors if keys %$errors;
    
    # See if the user already exists:
    if( App::db::user->count_search( email => $Form->{email} ) ) {
      $errors->{email} = "Already in use";
    }
    
    # Errors or not?:
    keys %$errors ? return $errors : return;
  }
  
  1;# return true:

File: C<htdocs/profile.asp>

  <%@ Page UseMasterPage="/masters/global.asp" %>
  
  <asp:Content PlaceHolderID="meta_title">My Profile</asp:Content>
  
  <asp:Content PlaceHolderID="headline">My Profile</asp:Content>
  
  <asp:Content PlaceHolderID="main_content">
  <%
    if( my $msg = $Session->{msg} ) {