/**
* This function will return the xmlized data belonging to one Moodle version
*
* @param string $version top version from which we start to look backwards
* @param int|string $env_select one of ENV_SELECT_NEWER | ENV_SELECT_DATAROOT | ENV_SELECT_RELEASE decide xml to use. String means plugin name.
* @return mixed the xmlized structure or false on error
*/
function get_environment_for_version($version, $env_select)
{
/// Normalize the version requested
$version = normalize_version($version);
/// Load xml file
if (!($contents = load_environment_xml($env_select))) {
return false;
}
/// Detect available versions
if (!($versions = get_list_of_environment_versions($contents))) {
return false;
}
// If $env_select is not numeric then this is being called on a plugin, and not the core environment.xml
// If a version of 'all' is in the arry is also means that the new <PLUGIN> tag was found, this should
// be matched against any version of Moodle.
if (!is_numeric($env_select) && in_array('all', $versions) && environment_verify_plugin($env_select, $contents['COMPATIBILITY_MATRIX']['#']['PLUGIN'][0])) {
return $contents['COMPATIBILITY_MATRIX']['#']['PLUGIN'][0];
}
/// If the version requested is available
if (!in_array($version, $versions)) {
return false;
}
/// We now we have it. Extract from full contents.
$fl_arr = array_flip($versions);
return $contents['COMPATIBILITY_MATRIX']['#']['MOODLE'][$fl_arr[$version]];
}
/**
* Test the environment_verify_plugin() function.
*/
public function test_verify_plugin()
{
global $CFG;
require_once $CFG->libdir . '/environmentlib.php';
// Build sample xmlised environment file fragments.
$plugin1xml = <<<END
<PLUGIN name="block_testcase">
<PHP_EXTENSIONS>
<PHP_EXTENSION name="xsl" level="required" />
</PHP_EXTENSIONS>
</PLUGIN>
END;
$plugin1 = xmlize($plugin1xml);
$plugin2xml = <<<END
<PLUGIN>
<PHP_EXTENSIONS>
<PHP_EXTENSION name="xsl" level="required" />
</PHP_EXTENSIONS>
</PLUGIN>
END;
$plugin2 = xmlize($plugin2xml);
$this->assertTrue(environment_verify_plugin('block_testcase', $plugin1['PLUGIN']));
$this->assertFalse(environment_verify_plugin('block_testcase', $plugin2['PLUGIN']));
$this->assertFalse(environment_verify_plugin('mod_someother', $plugin1['PLUGIN']));
$this->assertFalse(environment_verify_plugin('mod_someother', $plugin2['PLUGIN']));
}