comment_access.php

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<?php

      /*
      *     This source code is a part of the Ultimix Project. 
      *     It is distributed under BSD license. All other third side source code (like tinyMCE) is distributed under 
      *     it's own license wich could be found from the corresponding files or sources. 
      *     This source code is provided "as is" without any warranties or garanties.
      *
      *     Have a nice day!
      *
      *     @url http://ultimix.sorceforge.net
      *
      *     @author Alexey "gdever" Dodonov
      */

      class comment_access_1_0_0{

            var                           $NativeTable = '`umx_comment`';

            var                           $Database = false;
            var                           $DatabaseAlgorithms = false;
            var                           $Security = false;
            var                           $SecurityParser = false;
            var                           $UserAccess = false;
            var                           $UserAlgorithms = false;

            function                __construct()
            {
                  try
                  {
                        $this->Database = get_package( 'database' , 'last' , __FILE__ );
                        $this->DatabaseAlgorithms = get_package( 'database::database_algorithms' , 'last' , __FILE__ );
                        $this->Security = get_package( 'security' , 'last' , __FILE__ );
                        $this->SecurityParser = get_package( 'security::security_parser' , 'last' , __FILE__ );
                        $this->UserAccess = get_package( 'user::user_access' , 'last' , __FILE__ );
                        $this->UserAlgorithms = get_package( 'user::user_algorithms' , 'last' , __FILE__ );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            var                           $AddLimitations = '1 = 1';

            function                set_add_limitations( $theAddLimitation )
            {
                  try
                  {
                        if( $this->AddLimitations === '1 = 1' )
                        {
                              $this->AddLimitations = $theAddLimitation;
                        }
                        else
                        {
                              throw( new Exception( '"AddLimitations" was already set' ) );
                        }
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            function                unsafe_select( $Condition )
            {
                  try
                  {
                        $this->Database->query_as( DB_OBJECT );

                        return( 
                              $this->Database->select( 
                                    $this->UserAccess->NativeTable.'.* , '.$this->NativeTable.'.*' , 
                                    $this->NativeTable.' , '.$this->UserAccess->NativeTable , 
                                    $this->NativeTable.'.author = '.$this->UserAccess->NativeTable.".id 
                                          AND ( $this->AddLimitations ) AND $Condition"
                              )
                        );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            function                select( $Start = false , $Limit = false , $Field = false , 
                                                                                                                        $Order = false , $Condition = '1 = 1' )
            {
                  try
                  {
                        $Condition = $this->DatabaseAlgorithms->select_condition( 
                              $Start , $Limit , $Field , $Order , $Condition , $this->NativeTable
                        );

                        return( $this->unsafe_select( $Condition ) );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            function                delete( $id , $Options = ' 1 = 1' )
            {
                  try
                  {
                        $Link = get_package( 'link' , 'last' , __FILE__ );
                        $Link->delete_link( false , $id , false , 'comment' );

                        $id = $this->Security->get( $id , 'integer_list' );
                        $this->Database->delete( $this->NativeTable , "( $this->AddLimitations ) AND id IN ( $id )" );
                        $this->Database->commit();
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            private function  compile_record( &$Record )
            {
                  try
                  {
                        $MasterLink = $this->SecurityParser->parse_parameters( 
                              $Record , 'master_type:command;master_id:integer'
                        );

                        $Record = $this->SecurityParser->parse_parameters( $Record , 'comment:string' );
                        set_field( $Record , 'author' , $this->UserAlgorithms->get_id() );
                        set_field( $Record , 'page' , $this->Security->get_srv( 'REQUEST_URI' , 'string' , './index.html' ) );

                        return( $Record );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            function                create( $Record )
            {
                  try
                  {
                        $Record = $this->compile_record( $Record );

                        list( $Fields , $Values ) = $this->DatabaseAlgorithms->compile_fields_values( $Record , CREATION_DATE );

                        $id = $this->DatabaseAlgorithms->create( $this->NativeTable , $Fields , $Values );

                        $Link = get_package( 'link' , 'last' , __FILE__ );
                        $Link->create_link( 
                              get_field( $MasterLink , 'master_id' ) , $id , 
                              get_field( $MasterLink , 'master_type' ) , 'comment'
                        );

                        $EventManager = get_package( 'event_manager' , 'last' , __FILE__ );
                        $EventManager->trigger_event( 'on_after_create_comment' , array( 'id' => $id ) );

                        return( $id );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            function                update( $id , $Record )
            {
                  try
                  {
                        $id = $this->Security->get( $id , 'integer_list' );
                        $Record = $this->SecurityParser->parse_parameters( $Record , 'comment:string' , 'allow_not_set' );

                        list( $Fields , $Values ) = $this->DatabaseAlgorithms->compile_fields_values( $Record );

                        if( isset( $Fields[ 0 ] ) )
                        {
                              $this->Database->update( 
                                    $this->NativeTable , $Fields , $Values , "( $this->AddLimitations ) AND id IN ( $id )"
                              );
                              $this->Database->commit();
                        }
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            function                select_list( $id )
            {
                  try
                  {
                        $id = $this->Security->get( $id , 'integer_list' );

                        return( $this->unsafe_select( $this->NativeTable.".id IN ( $id ) ORDER BY creation_date ASC" ) );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
      }

?>