graph_data_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 graph_data_access_1_0_0{
      
            var                           $NativeTable = '`umx_graph_data`';
            
            var                           $Database = false;
            var                           $DatabaseAlgorithms = false;
            var                           $Security = false;
            var                           $SecurityParser = 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->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 , $Fields = false )
            {
                  try
                  {
                        $this->Database->query_as( DB_OBJECT );
                        
                        return( 
                              $this->Database->select( 
                                    $Fields === false ? $this->NativeTable.'.*' : $Fields , $this->NativeTable , 
                                    "( $this->AddLimitations ) AND $Condition"
                              )
                        );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            private function  fetch_create_parameters( $Record )
            {
                  try
                  {
                        if( get_field( $Record , 'author' , false ) === false )
                        {
                              set_field( $Record , 'author' , $this->UserAlgorithms->get_id() );
                        }

                        $Record = $this->SecurityParser->parse_parameters( 
                              $Record , 'author:integer;graph_type:integer;ordinatus:float;abscissa:integer'
                        );

                        return( $this->DatabaseAlgorithms->compile_fields_values( $Record ) );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
            
            function                create( $Record )
            {
                  try
                  {
                        list( $Fields , $Values ) = $this->fetch_create_parameters( $Record );

                        $this->Database->delete( 
                              $this->NativeTable , "( $this->AddLimitations ) AND abscissa = ".get_field( $Record , 'abscissa' ).
                              ' AND graph_type = '.get_field( $Record , 'graph_type' )
                        );
                        $this->Database->commit();

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

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

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

?>