动态网页技术PHP通过参数来生成MYSQL语句类

动态网页技术PHP通过参数来生成MYSQL语句类(10)    if ( ! $this -> BuildCondition()){ $this -> dbgFailed( $funct ); return ;}
   $Tables = $this -> getTables();
  
   $sql = " UPDATE " . $Tables [ 0 ] . " SET " . $this -> partSQL . " WHERE " . $this -> getCondition();
  
   $this -> Result = $sql ;
  
   return true ;
   }
   function getQuerySQL()
   {
   $funct = " getQuerySQL " ;
   $className = get_class ( $this );
  
   if ( ! $this -> getFields()){ $this -> Error = " $className::$funct \nProperty Fields was empty " ; return ;}
   if ( ! $this -> getTables()){ $this -> Error = " $className::$funct \nProperty Tables was empty " ; return ;}
  
   $Fields = $this -> getFields();
   $Tables = $this -> getTables();
   foreach ( $Fields as $Field ){@ $sql_raw .= $Field . " , " ;}
   foreach ( $Tables as $Table ){@ $sql_table .= $Table . " , " ;}
  
   $this -> Result = " SELECT " . substr ( $sql_raw , 0 ,- 1 ) . " FROM " . substr ( $sql_table , 0 ,- 1 );
  
   if ( $this -> getLeftJoin())
   {
   if ( ! $this -> BuildLeftJoins()){ $this -> dbgFailed( $funct ); return ;}
   $this -> Result .= " " . $this -> ResultLeftJoin;
   }
   if ( $this -> getConditions())
   {
   if ( ! $this -> BuildCondition()){ $this -> dbgFailed( $funct ); return ;}
   $this -> Result .= " WHERE ( " . $this -> Condition . " ) " ;
   }
   if ( $this -> getSearch())
   {
   if ( ! $this -> BuildSearch()){ $this -> dbgFailed( $funct ); return ;}
   if ( $this -> ResultSearch)