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   1  <?php
   2  
   3  /*
   4   * This file is part of the symfony package.
   5   * (c) 2004-2006 Fabien Potencier <fabien.potencier@symfony-project.com>
   6   *
   7   * For the full copyright and license information, please view the LICENSE
   8   * file that was distributed with this source code.
   9   */
  10  
  11  /**
  12   *
  13   * @package    symfony
  14   * @subpackage config
  15   * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
  16   * @version    SVN: $Id: sfDefineEnvironmentConfigHandler.class.php 3254 2007-01-13 07:52:26Z fabien $
  17   */
  18  class sfDefineEnvironmentConfigHandler extends sfYamlConfigHandler
  19  {
  20    /**
  21     * Executes this configuration handler.
  22     *
  23     * @param  string An absolute filesystem path to a configuration file
  24     *
  25     * @return string Data to be written to a cache file
  26     *
  27     * @throws sfConfigurationException If a requested configuration file does not exist or is not readable
  28     * @throws sfParseException If a requested configuration file is improperly formatted
  29     */
  30    public function execute($configFiles)
  31    {
  32      // get our prefix
  33      $prefix = strtolower($this->getParameterHolder()->get('prefix', ''));
  34  
  35      // add dynamic prefix if needed
  36      if ($this->getParameterHolder()->get('module', false))
  37      {
  38        $prefix .= "'.strtolower(\$moduleName).'_";
  39      }
  40  
  41      // parse the yaml
  42      $myConfig = $this->mergeEnvironment($this->parseYamls($configFiles));
  43  
  44      $values = array();
  45      foreach ($myConfig as $category => $keys)
  46      {
  47        $values = array_merge($values, $this->getValues($prefix, $category, $keys));
  48      }
  49  
  50      $data = '';
  51      foreach ($values as $key => $value)
  52      {
  53        $data .= sprintf("  '%s' => %s,\n", $key, var_export($value, true));
  54      }
  55  
  56      // compile data
  57      $retval = '';
  58      if ($values)
  59      {
  60        $retval = "<?php\n".
  61                  "// auto-generated by sfDefineEnvironmentConfigHandler\n".
  62                  "// date: %s\nsfConfig::add(array(\n%s));\n";
  63        $retval = sprintf($retval, date('Y/m/d H:i:s'), $data);
  64      }
  65  
  66      return $retval;
  67    }
  68  
  69    /**
  70     * Gets values from the configuration array.
  71     *
  72     * @param string The prefix name
  73     * @param string The category name
  74     * @param mixed  The key/value array
  75     *
  76     * @param array The new key/value array
  77     */
  78    protected function getValues($prefix, $category, $keys)
  79    {
  80      if (!is_array($keys))
  81      {
  82        list($key, $value) = $this->fixCategoryValue($prefix.strtolower($category), '', $keys);
  83  
  84        return array($key => $value);
  85      }
  86  
  87      $values = array();
  88  
  89      $category = $this->fixCategoryName($category, $prefix);
  90  
  91      // loop through all key/value pairs
  92      foreach ($keys as $key => $value)
  93      {
  94        list($key, $value) = $this->fixCategoryValue($category, $key, $value);
  95        $values[$key] = $value;
  96      }
  97  
  98      return $values;
  99    }
 100  
 101    /**
 102     * Fixes the category name and replaces constants in the value.
 103     *
 104     * @param string The category name
 105     * @param string The key name
 106     * @param string The value
 107     *
 108     * @param string Return the new key and value
 109     */
 110    protected function fixCategoryValue($category, $key, $value)
 111    {
 112      // prefix the key
 113      $key = $category.$key;
 114  
 115      // replace constant values
 116      $value = $this->replaceConstants($value);
 117  
 118      return array($key, $value);
 119    }
 120  
 121    /**
 122     * Fixes the category name.
 123     *
 124     * @param string The category name
 125     * @param string The prefix
 126     *
 127     * @return string The fixed category name
 128     */
 129    protected function fixCategoryName($category, $prefix)
 130    {
 131      // categories starting without a period will be prepended to the key
 132      if ($category[0] != '.')
 133      {
 134        $category = $prefix.$category.'_';
 135      }
 136      else
 137      {
 138        $category = $prefix;
 139      }
 140  
 141      return $category;
 142    }
 143  
 144    /**
 145     * Merges default, all and current environment configurations.
 146     *
 147     * @param array The main configuratino array
 148     *
 149     * @param array The merged configuration
 150     */
 151    protected function mergeEnvironment($config)
 152    {
 153      return sfToolkit::arrayDeepMerge(
 154        isset($config['default']) && is_array($config['default']) ? $config['default'] : array(),
 155        isset($config['all']) && is_array($config['all']) ? $config['all'] : array(),
 156        isset($config[sfConfig::get('sf_environment')]) && is_array($config[sfConfig::get('sf_environment')]) ? $config[sfConfig::get('sf_environment')] : array()
 157      );
 158    }
 159  }