pmgr/site/app_model.php

<?php
/* SVN FILE: $Id: app_model.php 7945 2008-12-19 02:16:01Z gwoo $ */

/**
 * Application model for Cake.
 *
 * This file is application-wide model file. You can put all
 * application-wide model-related methods here.
 *
 * PHP versions 4 and 5
 *
 * CakePHP(tm) :  Rapid Development Framework (http://www.cakephp.org)
 * Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @filesource
 * @copyright     Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
 * @link          http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
 * @package       cake
 * @subpackage    cake.app
 * @since         CakePHP(tm) v 0.2.9
 * @version       $Revision: 7945 $
 * @modifiedby    $LastChangedBy: gwoo $
 * @lastmodified  $Date: 2008-12-18 18:16:01 -0800 (Thu, 18 Dec 2008) $
 * @license       http://www.opensource.org/licenses/mit-license.php The MIT License
 */

/**
 * Application model for Cake.
 *
 * Add your application-wide methods in the class below, your models
 * will inherit them.
 *
 * @package       cake
 * @subpackage    cake.app
 */
class AppModel extends Model {

  var $actsAs = array('Containable', 'Linkable');
  var $useNullForEmpty = true;
  var $formatDateFields = true;

  /**
   * Get Enum Values
   * Snippet v0.1.3
   * http://cakeforge.org/snippet/detail.php?type=snippet&id=112
   *
   * Gets the enum values for MySQL 4 and 5 to use in selectTag()
   */
  function getEnumValues($columnName=null, $tableName=null)
  {
    if ($columnName==null) { return array(); } //no field specified

    if (!isset($tableName)) {
      //Get the name of the table
      $db =& ConnectionManager::getDataSource($this->useDbConfig);
      $tableName = $db->fullTableName($this, false);
    }

    //Get the values for the specified column (database and version specific, needs testing)
    $result = $this->query("SHOW COLUMNS FROM {$tableName} LIKE '{$columnName}'");

    //figure out where in the result our Types are (this varies between mysql versions)
    $types = null;
    if     ( isset( $result[0]['COLUMNS']['Type'] ) ) {  //MySQL 5
      $types = $result[0]['COLUMNS']['Type']; $default = $result[0]['COLUMNS']['Default'];
    }
    elseif ( isset( $result[0][0]['Type'] ) )         {  //MySQL 4
      $types = $result[0][0]['Type']; $default = $result[0][0]['Default'];
    }
    else   { //types return not accounted for
      return array();
    }

    //Get the values
    return array_flip(array_merge(array(''), // MySQL sets 0 to be the empty string
				  explode("','", strtoupper(preg_replace("/(enum)\('(.+?)'\)/","\\2", $types)))
				  ));
  } //end getEnumValues



  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: nameToID
   *  - Returns the ID of the named item
   */
  function nameToID($name) {
    $this->cacheQueries = true;
    $item = $this->find('first', array
			('recursive' => -1,
			 'conditions' => compact('name'),
			 ));
    $this->cacheQueries = false;
    if ($item) {
      $item = current($item);
      return $item['id'];
    }
    return null;
  }


  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: statMerge
   *  - Merges summary data from $b into $a
   */

  function statsMerge (&$a, $b) {
    if (!isset($b))
      return;

    if (!isset($a)) {
      $a = $b;
    }
    elseif (!is_array($a) && !is_array($b)) {
      $a += $b;
    }
    elseif (is_array($a) && is_array($b)) {
      foreach (array_intersect_key($a, $b) AS $k => $v)
	{
	  if (preg_match("/^sp\./", $k))
	    $a[$k] .= '; ' . $b[$k];
	  else
	    $this->statsMerge($a[$k], $b[$k]);
	}
      $a = array_merge($a, array_diff_key($b, $a));
    }
    else {
      die ("Can't yet merge array and non-array stats");
    }
  }


  function recursive_array_replace($find, $replace, &$data) {
    if (!isset($data))
      return;

    if (is_array($data)) {
      foreach ($data as $key => &$value) {
	  $this->recursive_array_replace($find, $replace, $value);
      }
      return;
    }

    if (isset($replace))
      $data = preg_replace($find, $replace, $data);
    elseif (preg_match($find, $data))
      $data = null;
  }

  function beforeSave() {
/*     pr(array('class' => $this->name, */
/* 	     'alias' => $this->alias, */
/* 	     'function' => 'AppModel::beforeSave')); */

    // Replace all empty strings with NULL.
    // If a particular model doesn't like this, they'll have to
    // override the behavior, or set useNullForEmpty to false.
    if ($this->useNullForEmpty)
      $this->recursive_array_replace("/^\s*$/", null, $this->data);

    if ($this->formatDateFields) {
      $alias = $this->alias;

      foreach ($this->_schema AS $field => $info) {
	if ($info['type'] == 'date' || $info['type'] == 'timestamp') {
	  if (isset($this->data[$alias][$field])) {
/* 	    pr("Fix Date for '$alias'.'$field'; current value = " . */
/* 	       "'{$this->data[$alias][$field]}'"); */
	    if ($this->data[$alias][$field] === 'CURRENT_TIMESTAMP')
	      // Seems CakePHP is broken for the default timestamp.
	      // It tries to automagically set the value to CURRENT_TIMESTAMP
	      // which is wholly rejected by MySQL.  Just put it back to NULL
	      // and let the SQL engine deal with the defaults... it's not
	      // Cake's place to do this anyway :-/
	      $this->data[$alias][$field] = null;
	    else
	      $this->data[$alias][$field] =
		$this->dateFormatBeforeSave($this->data[$alias][$field]);
	  }
	}
      }
    }

    return true;
  }

  /**************************************************************************
   **************************************************************************
   **************************************************************************
   * function: dateFormatBeforeSave
   *  - convert dates to database format
   */

  function dateFormatBeforeSave($dateString) {
/*     $time = ''; */
/*     if (preg_match('/(\d+(:\d+))/', $dateString, $match)) */
/*       $time = ' '.$match[1]; */
/*     $dateString = preg_replace('/(\d+(:\d+))/', '', $dateString); */
/*     return date('Y-m-d', strtotime($dateString)) . $time; */

    if (preg_match('/:/', $dateString))
      return date('Y-m-d H:i:s', strtotime($dateString));
    else
      return date('Y-m-d', strtotime($dateString));
  }

}