TYPO3 Core

$cFiles['ext_tables'].=t3lib_extMgm::watchTablesInclude($key, 'begin');

$cFiles['ext_tables'].=t3lib_extMgm::watchTablesInclude($key, 'end');

/**

* Returns the watchTable code for the compiled cache-files.

*

* @param string $key: The extension key

* @param string $action: One of 'begin' or 'end'

* @return string PHP code like "<?php t3lib_extMgm::watchTables('my_extension','begin'); ?>"

*/

function watchTablesInclude($key, $action) {

return "<?php t3lib_extMgm::watchTables('".addslashes($key)."','$action'); ?>";

}

/**

* watchTable handler to determine which table belongs to which extension key (and vice versa).

* The $action 'begin' puts a new level on the TYPO3_WATCH_TABLES stack. If there was already an

* element on the stack, the state for the previous extension has to be stored temporarily and updated

* afterwards. This could happen if an extension includes anonther extension, what isn't a good style,

* but could happen!

* The $action 'end' searches the differences between the 'begin' call and the 'end' call and writes

* the information, if any, to TYPO3_CONF_VARS/EXT/extTables and ~/extKeys.

* extKeys: <key> -> array of tables

* extTables: <table> -> string of extension key

*

* @param string $key: The extension key

* @param string $action: One of 'begin' or 'end'

* @return void

*/

function watchTables($key, $action) {

// Initialize TYPO3_WATCH_TABLES and TYPO3_LOADED_TABLES as array:

if (!is_array($GLOBALS['TYPO3_WATCH_TABLES'])) {

$GLOBALS['TYPO3_WATCH_TABLES'] = array();

$GLOBALS['TYPO3_LOADED_TABLES'] = array();

}

// Get the current structure depth (normally this should be 0 or 1):

$structureDepth = count($GLOBALS['TYPO3_WATCH_TABLES']);

// Put a new level on the stack:

if ($action == 'begin') {

// If the previous extension included loads an extension (not good, but could happen):

if ($structureDepth > 0) {

$previousIndex = $structureDepth-1;

$GLOBALS['TYPO3_WATCH_TABLES'][$previousIndex]['tables'] = array_diff(

array_keys($GLOBALS['TCA']),

$GLOBALS['TYPO3_WATCH_TABLES'][$previousIndex]['tca']

);

}

// Put the current extension on the stack and store current tables in TCA:

$GLOBALS['TYPO3_WATCH_TABLES'][] = array(

'tca' => array_keys($GLOBALS['TCA']),

'tables' => array()

);

// Remove the last element from the stack and process differences (tables, that have been set):

} elseif ($action == 'end') {

// If the previous extension included loads an extension (not good, but could happen):

if ($structureDepth > 1) {

$previousIndex = $structureDepth-2;

$GLOBALS['TYPO3_WATCH_TABLES'][$previousIndex]['tca'] = array_keys($GLOBALS['TCA']);

}

// Remove the current extension from the stack:

$currentLevel = array_pop($GLOBALS['TYPO3_WATCH_TABLES']);

// Get differences between 'begin' and 'end' call of this extension:

$tables = array_diff(

array_keys($GLOBALS['TCA']),

$currentLevel['tca']

);

// If this extension included a different extension, there is addional information - merge it to $tables:

if (count($currentLevel['tables'])) {

$tables = array_merge($currentLevel['tables'], $tables);

}

// If this extension has set tables at all, store them to TYPO3_LOADED_TABLES and TYPO3_LOADED_EXT:

if (count($tables)) {

sort($tables);

$GLOBALS['TYPO3_LOADED_EXT'][$key]['tables'] = implode(',', $tables);

foreach ($tables as $tableName) {

$GLOBALS['TYPO3_LOADED_TABLES'][$tableName] = $key;

}

}

}

}

5 => 'TYPO3_LOADED_TABLES',

case 5:

$theVar = $GLOBALS['TYPO3_LOADED_TABLES'];

$arrayBrowser->varName = '$TYPO3_LOADED_TABLES';

break;