comment_algorithms.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_algorithms_1_0_0{
      
            var                           $CommentAccess = false;
            var                           $Link = false;
            var                           $LinkUtilities = false;
            var                           $Security = false;
            
            var                           $Cache = array();
            
            function                __construct()
            {
                  try
                  {
                        $this->CommentAccess = get_package( 'comment::comment_access' , 'last' , __FILE__ );
                        $this->Link = get_package( 'link' , 'last' , __FILE__ );
                        $this->LinkUtilities = get_package( 'link::link_utilities' , 'last' , __FILE__ );
                        $this->Security = get_package( 'security' , 'last' , __FILE__ );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
      
            function                object_exists( $id )
            {
                  try
                  {
                        $id = $this->Security->get( $id , 'integer' );

                        $Records = $this->CommentAccess->unsafe_select( $this->CommentAccess->NativeTable.".id = $id" );

                        return( count( $Records ) === 1 );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

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

                        $Records = $this->CommentAccess->unsafe_select( $this->CommentAccess->NativeTable.".id = $id" );

                        if( count( $Records ) == 0 )
                        {
                              throw( new Exception( 'Record was not found' ) );
                        }

                        return( $Records[ 0 ] );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            function                get_records_for_object( $MasterId , $MasterType )
            {
                  try
                  {
                        if( isset( $this->Cache[ "$MasterId.$MasterType" ] ) )
                        {
                              return( $this->Cache[ "$MasterId.$MasterType" ] );
                        }

                        $this->Cache[ "$MasterId.$MasterType" ] = $this->LinkUtilities->get_dependent_objects( 
                              $MasterId , $MasterType , 'comment' , $this->CommentAccess
                        );

                        return( $this->Cache[ "$MasterId.$MasterType" ] );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
            
            function                get_comments_newer_than( $Author , $Time )
            {
                  try
                  {
                        $Author = $this->Security->get( $Author , 'integer' );
                        $Time = $this->Security->get( $Time , 'integer' );

                        $Records = $this->CommentAccess->unsafe_select( 
                              $this->CommentAccess->NativeTable.".author = $Author AND ".
                              "DATE_ADD( creation_date , INTERVAL $Time SECOND ) > NOW()"
                        );

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

?>