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# Qualifier.php

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    00001 <?PHP
    00002
    00003 #
    00004 #   FILE:  SPT--Qualifier.php
    00005 #
    00006 #   METHODS PROVIDED:
    00007 #       Qualifier($QualifierId = NULL)
    00008 #           - constructor (no ID creates new qualifier)
    00009 #       Delete()
    00010 #           - remove qualifier from database
    00011 #       Id()
    00012 #           - get attribute
    00013 #       Name($NewValue = DB_NOVALUE)
    00014 #       Url($NewValue = DB_NOVALUE)
    00015 #           - get/set attributes
    00016 #
    00017 #   AUTHOR:  Edward Almasy
    00018 #
    00019 #   Part of the Scout Portal Toolkit
    00020 #   Copyright 2003 Internet Scout Project
    00021 #   http://scout.wisc.edu
    00022 #
    00023
    00024 class Qualifier {
    00025
    00026     # ---- PUBLIC INTERFACE --------------------------------------------------
    00027
    00028     # object constructor (no ID creates new qualifier)
    00029     function Qualifier($QualifierId = NULL)
    00030     {
    00031         # create our own database handle
    00032         $this->DB = new SPTDatabase();
    00033         $DB =& $this->DB;
    00034
    00035         if (func_num_args()==0)
    00036         {
    00037             # determine next qualifier ID
    00038             $HighestId = $DB->Query(
    00039                 "SELECT QualifierId FROM Qualifiers"
    00040                 ." ORDER BY QualifierId DESC LIMIT 1", "QualifierId");
    00041             $this->Id = ($HighestId > 0) ? ($HighestId + 1) : 1;
    00042
    00043             # add record to database with that ID
    00044             $DB->Query("INSERT INTO Qualifiers SET QualifierId = ".$this->Id);
    00045
    00046         }
    00047         # if ID supplied
    00048         elseif ($QualifierId !== NULL)
    00049         {
    00050             # save ID
    00051             $this->Id = intval($QualifierId);
    00052
    00053             # attempt to load qualifier info from database
    00054             $DB->Query("SELECT * FROM Qualifiers"
    00055                        ." WHERE QualifierId = '".$this->Id."'");
    00056
    00057             # if row was loaded
    00058             if ($DB->NumRowsSelected() > 0)
    00059             {
    00060                 # set attributes to values returned by database
    00061                 $this->DBFields = $DB->FetchRow();
    00062             }
    00063         }
    00064     }
    00065
    00066     # remove qualifier from database
    00067     function Delete()
    00068     {
    00069         # delete record from database
    00070         $this->DB->Query("DELETE FROM Qualifiers WHERE QualifierId = ".$this->Id);
    00071     }
    00072
    00073     # get attribute
    00074     function Id() {  return $this->Id;  }
    00075
    00076     # get/set attributes
    00077     function Name($NewValue = DB_NOVALUE) {  return $this->UpdateValue("QualifierName", $NewValue);  }
    00078     function NSpace($NewValue = DB_NOVALUE) {  return $this->UpdateValue("QualifierNamespace", $NewValue);  }
    00079     function Url($NewValue = DB_NOVALUE) {  return $this->UpdateValue("QualifierUrl", $NewValue);  }
    00080
    00081
    00082     # ---- PRIVATE INTERFACE -------------------------------------------------
    00083
    00084     var $Id;
    00085     var $DB;
    00086     var $DBFields;
    00087
    00088     # convenience function to supply parameters to Database->UpdateValue()
    00089     function UpdateValue($FieldName, $NewValue)
    00090     {
    00091         return $this->DB->UpdateValue("Qualifiers", $FieldName, $NewValue,
    00092                                "QualifierId = '".$this->Id."'", $this->DBFields);
    00093     }
    00094 }
    00095
    00096
    00097 ?>

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