public function deleteFromDB()
  {
    // first check if keys are available
    if (!$this->isValid()) {
      return false;
    }
    
    if(count($this->key_properties)==0){
      // cannot delete without keys
      return false;
    }
    // build where part
    $where_part='';
    foreach ($this->key_properties as $key) {
      if ($where_part) {
        $where_part.=' AND ';
      }
      if ($this->{$key} instanceof Web2All_Table_SQLOperation) {
        trigger_error('Web2All_Table_SaveObjectTrait->deleteFromDB(): using Web2All_Table_SQLOperation object for key value '.$key,E_USER_NOTICE);
        $where_part.=$this->obj_to_db_trans[$key].'='.$this->{$key}->toSQLString();

      }else if ($this->{$key} instanceof Web2All_Table_SQLOperationList) {
        throw new Exception("Web2All_Table_SaveObjectTrait: can't delete using a Web2All_Table_SQLOperationList for key value ".$key);
        
      }else{
        $where_part.=$this->obj_to_db_trans[$key].'='.$this->db->Quote($this->{$key});
      }
    }
    
    $this->db->Execute('DELETE FROM '.$this->quote($this->tablename).' WHERE '.$where_part.' ');
    
    return true;
  }
public function deleteFromDB()
  {
    // first check if keys are available
    if (!$this->isValid()) {
      return false;
    }
    
    if(count($this->key_properties)==0){
      // cannot delete without keys
      return false;
    }
    // build where part
    $where_part='';
    foreach ($this->key_properties as $key) {
      if ($where_part) {
        $where_part.=' AND ';
      }
      if ($this->{$key} instanceof Web2All_Table_SQLOperation) {
        trigger_error('Web2All_Table_SaveObjectTrait->deleteFromDB(): using Web2All_Table_SQLOperation object for key value '.$key,E_USER_NOTICE);
        $where_part.=$this->obj_to_db_trans[$key].'='.$this->{$key}->toSQLString();

      }else if ($this->{$key} instanceof Web2All_Table_SQLOperationList) {
        throw new Exception("Web2All_Table_SaveObjectTrait: can't delete using a Web2All_Table_SQLOperationList for key value ".$key);
        
      }else{
        $where_part.=$this->obj_to_db_trans[$key].'='.$this->db->Quote($this->{$key});
      }
    }
    
    $this->db->Execute('DELETE FROM '.$this->quote($this->tablename).' WHERE '.$where_part.' ');
    
    return true;
  }
public function deleteFromDB ( ) { // first check if keys are available
 if ( ! $ this -> isValid ( ) ) { return false ; } if ( count ( $ this -> key_properties ) == 0 ) { // cannot delete without keys
 return false ; } // build where part
 $ where_part = '' ; foreach ( $ this -> key_properties as $ key ) { if ( $ where_part ) { $ where_part .= ' AND ' ; } if ( $ this -> { $ key } instanceof Web2All_Table_SQLOperation ) { trigger_error ( 'Web2All_Table_SaveObjectTrait->deleteFromDB(): using Web2All_Table_SQLOperation object for key value ' . $ key , E_USER_NOTICE ) ; $ where_part .= $ this -> obj_to_db_trans [ $ key ] . '=' . $ this -> { $ key } -> toSQLString ( ) ; } else if ( $ this -> { $ key } instanceof Web2All_Table_SQLOperationList ) { throw new Exception ( "Web2All_Table_SaveObjectTrait: can't delete using a Web2All_Table_SQLOperationList for key value " . $ key ) ; } else { $ where_part .= $ this -> obj_to_db_trans [ $ key ] . '=' . $ this -> db -> Quote ( $ this -> { $ key } ) ; } } $ this -> db -> Execute ( 'DELETE FROM ' . $ this -> quote ( $ this -> tablename ) . ' WHERE ' . $ where_part . ' ' ) ; return true ; }
Delete the current object from the database.

It is required that all key properties are set.

@return boolean
Delete the current object from the database .