features.install in Features 7.2
Same filename and directory in other branches
Install, update and uninstall functions for the features module.
File
features.installView source
<?php
/**
* @file
* Install, update and uninstall functions for the features module.
*/
/**
* Implements hook_schema().
*/
function features_schema() {
$schema['cache_features'] = drupal_get_schema_unprocessed('system', 'cache');
$schema['cache_features']['description'] = 'Cache table for features to store module info.';
$schema['features_signature'] = array(
'description' => 'Stores hashes that reflect the last known state of a features component.',
'fields' => array(
'module' => array(
'description' => 'Name of the feature module.',
'type' => 'varchar',
'length' => 64,
'not null' => TRUE,
),
'component' => array(
'description' => 'Name of the features component.',
'type' => 'varchar',
'length' => 128,
'not null' => TRUE,
),
'signature' => array(
'description' => 'Hash reflecting the last approved state of the component in code.',
'type' => 'varchar',
'length' => 128,
'not null' => TRUE,
),
'updated' => array(
'description' => 'Timestamp when the signature was last updated.',
'type' => 'int',
'not null' => TRUE,
'default' => 0,
),
'message' => array(
'description' => 'Message to document why the component was updated.',
'type' => 'varchar',
'length' => 255,
'not null' => FALSE,
),
),
'primary key' => array(
'module',
'component',
),
'indexes' => array(
'module' => array(
'module',
),
'component' => array(
'component',
),
),
);
return $schema;
}
/**
* Implements hook_install().
*/
function features_install() {
_features_install_menu();
db_update('system')
->fields(array(
'weight' => 20,
))
->condition('name', 'features')
->condition('type', 'module')
->execute();
}
/**
* Implements hook_uninstall().
*/
function features_uninstall() {
variable_del('features_codecache');
variable_del('features_default_export_path');
variable_del('features_semaphore');
variable_del('features_ignored_orphans');
variable_del('features_feature_locked');
variable_del('features_lock_mode');
variable_del('features_update_7202_fixed_tmp');
variable_del('features_update_7202_possibly_broken');
db_delete('variable')
->condition('name', 'features_admin_show_component_%', 'LIKE')
->execute();
db_delete('variable')
->condition('name', 'features_component_locked_%', 'LIKE')
->execute();
if (db_table_exists('menu_custom')) {
db_delete('menu_custom')
->condition('menu_name', 'features')
->execute();
}
db_delete('menu_links')
->condition('module', 'features')
->execute();
}
/**
* Create menu. See menu.install for an example.
*/
function _features_install_menu() {
if (db_table_exists('menu_custom') && !db_query("SELECT menu_name FROM {menu_custom} WHERE menu_name = :menu_name", array(
':menu_name' => 'features',
))
->fetchField()) {
$t = get_t();
$id = db_insert('menu_custom')
->fields(array(
'menu_name' => 'features',
'title' => $t('Features'),
'description' => $t('Menu items for any enabled features.'),
))
->execute();
}
}
/**
* Update 6100: Set module on all feature node types to 'features'.
*
* This update can be re-run as needed to repair any node types that are not
* removed after disabling the associated feature.
*
* Any feature implementing a node component that was exported prior to this
* version of the features.module will need to have its 'module' declaration
* in hook_node_info() changed from 'node' to 'features'.
*/
function features_update_6100() {
$ret = array();
foreach (features_get_features(NULL, TRUE) as $feature) {
if (module_exists($feature->name) && ($types = module_invoke($feature->name, 'node_info'))) {
foreach ($types as $type => $type_data) {
$sql = "SELECT COUNT(*) FROM {node_type} WHERE module = 'node' AND type = '%s'";
// Only update if the hook_node_info() type's module is 'features' and
// the db type's module is 'node'.
if ($type_data['module'] == 'features' && db_query($sql, $type)
->fetchField()) {
$ret[] = update_sql("UPDATE {node_type} SET module = 'features' WHERE type = '{$type}'");
}
}
}
}
return $ret;
}
/**
* Update 6101: Set codestate signature for all features.
*
* This update generates a codestate for all feature/component pairs which
* have been installed prior to this version of Features. This prevents
* automatic rebuilds from occurring against any rebuildable components
* that have been overridden.
*/
function features_update_6101() {
// Ensure all of our own API functions still exist in this version
// of Features. It's possible that the "future me" will not have these
// functions, so I should check.
module_load_include('inc', 'features', "features.export");
$functions = array(
'features_include',
'features_hook',
'features_get_components',
'features_get_features',
'features_get_signature',
'features_set_signature',
);
$doit = TRUE;
foreach ($functions as $function) {
$doit = $doit && function_exists($function);
}
if ($doit) {
features_include();
$features = array_keys(features_get_features(NULL, TRUE));
$components = array_keys(features_get_components());
foreach ($features as $feature) {
if (module_exists($feature)) {
foreach ($components as $component) {
if (features_hook($component, 'features_rebuild') && features_get_signature('cache', $feature, $component) === FALSE) {
features_set_signature($feature, $component, -1);
}
}
}
}
}
return array();
}
/**
* Add {cache_features} table.
*/
function features_update_7200() {
if (!db_table_exists('cache_features')) {
$schema = drupal_get_schema_unprocessed('system', 'cache');
db_create_table('cache_features', $schema);
}
}
/**
* Add {cache_featurestate} table.
*/
function features_update_7201() {
// This update hook is no longer active.
}
/**
* Create a new table 'features_signature' to store signatures.
*/
function features_update_7202() {
if (!db_table_exists('features_signature')) {
// Create the new table for signatures.
$schema = array(
'description' => 'Stores hashes that reflect the last known state of a features component.',
'fields' => array(
'module' => array(
'description' => 'Name of the feature module.',
'type' => 'varchar',
'length' => 64,
'not null' => TRUE,
),
'component' => array(
'description' => 'Name of the features component.',
'type' => 'varchar',
'length' => 128,
'not null' => TRUE,
),
'signature' => array(
'description' => 'Hash reflecting the last approved state of the component in code.',
'type' => 'varchar',
'length' => 128,
'not null' => TRUE,
),
'updated' => array(
'description' => 'Timestamp when the signature was last updated.',
'type' => 'int',
'not null' => TRUE,
'default' => 0,
),
'message' => array(
'description' => 'Message to document why the component was updated.',
'type' => 'varchar',
'length' => 255,
'not null' => FALSE,
),
),
'primary key' => array(
'module',
'component',
),
'indexes' => array(
'module' => array(
'module',
),
'component' => array(
'component',
),
),
);
db_create_table('features_signature', $schema);
}
// Load existing signatures.
if (db_table_exists('cache_featurestate')) {
// The old version of features_update_7201() has run in the past, and a
// cache table was created to replace the 'features_codecache' variable.
$cache = cache_get('features_codecache', 'cache_featurestate');
$signaturess = !empty($cache->data) ? $cache->data : array();
$message = __FUNCTION__ . '() - from cache storage';
}
else {
// The current (inactive) version of features_update_7201() has run, and the
// 'features_codecache' variable still exists.
$signaturess = variable_get('features_codecache', array());
$message = __FUNCTION__ . '() - from variable storage';
}
// Prevent existing records from being inserted again.
// This way we don't need a REPLACE query.
// This only applies if the table was already created e.g. in a previous
// failed attempt to run this update.
$q = db_select('features_signature', 'fs')
->fields('fs');
if ($qr = $q
->execute()) {
foreach ($qr as $obj) {
unset($signaturess[$obj->module][$obj->component]);
}
}
// Get a timestamp to be stored in each record.
$timestamp = time();
// Build the insert query.
$insert = db_insert('features_signature')
->fields(array(
'module',
'component',
'signature',
'updated',
'message',
));
foreach ($signaturess as $module => $signatures) {
foreach ($signatures as $component => $signature) {
$record = array(
'module' => $module,
'component' => $component,
'signature' => $signature,
'updated' => $timestamp,
'message' => $message,
);
$insert
->values($record);
}
}
// Execute the insert query.
// On failure, allow the exception to trickle up.
$insert
->execute();
// Set a temporary marker variable for subsequent updates.
// This variable was not set in an older version of this update.
variable_set('features_update_7202_fixed_tmp', TRUE);
// Delete the old table and variable if the data migration was successful.
variable_del('features_codecache');
if (db_table_exists('cache_featurestate')) {
db_drop_table('cache_featurestate');
}
// Reset the static cache that determines the storage type.
drupal_static_reset('_features_get_signature_storage_type');
}
/**
* Reduce varchar lengths in 'features_signature' table. See #3181858.
*/
function features_update_7203() {
// The following operations are only needed for sites that previously ran an
// older version of features_update_7202(). Trying to check this would
// probably be more copmlex, so we run it anyway.
db_change_field('features_signature', 'module', 'module', array(
'description' => 'Name of the feature module.',
'type' => 'varchar',
'length' => 64,
'not null' => TRUE,
));
db_change_field('features_signature', 'component', 'component', array(
'description' => 'Name of the features component.',
'type' => 'varchar',
'length' => 128,
'not null' => TRUE,
));
}
/**
* Set a marker variable, if the site could be affected by undesired reverts.
*/
function features_update_7204() {
if (variable_get('features_update_7202_fixed_tmp')) {
// The fixed version of features_update_7202() did run.
// Delete the temporary marker variable.
variable_del('features_update_7202_fixed_tmp');
}
else {
// Either the old broken version of features_update_7202() ran, or features
// was newly installed in a version where 7202 or 7203 was the latest
// update.
// Set a marker variable, indicating that some overridden features
// components might have been accidentally reverted. See #3183346.
variable_set('features_update_7202_possibly_broken', TRUE);
}
}
Functions
Name | Description |
---|---|
features_install | Implements hook_install(). |
features_schema | Implements hook_schema(). |
features_uninstall | Implements hook_uninstall(). |
features_update_6100 | Update 6100: Set module on all feature node types to 'features'. |
features_update_6101 | Update 6101: Set codestate signature for all features. |
features_update_7200 | Add {cache_features} table. |
features_update_7201 | Add {cache_featurestate} table. |
features_update_7202 | Create a new table 'features_signature' to store signatures. |
features_update_7203 | Reduce varchar lengths in 'features_signature' table. See #3181858. |
features_update_7204 | Set a marker variable, if the site could be affected by undesired reverts. |
_features_install_menu | Create menu. See menu.install for an example. |