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authorredmatrix <git@macgirvin.com>2016-05-30 16:42:29 -0700
committerredmatrix <git@macgirvin.com>2016-05-30 16:42:29 -0700
commit490ab9e2c593275c0cf3d705a4ae52c6a22db4d9 (patch)
tree6045afeafdb0a41cb9c1ee8237834826b30b1d8f /Zotlabs/Lib/Config.php
parentf35609d26cd9e6fb2c177ca1e422d0f0729f4f2e (diff)
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begin moving config to zotlabs. Leave procedural stubs for backward comaptibility
Diffstat (limited to 'Zotlabs/Lib/Config.php')
-rw-r--r--Zotlabs/Lib/Config.php166
1 files changed, 166 insertions, 0 deletions
diff --git a/Zotlabs/Lib/Config.php b/Zotlabs/Lib/Config.php
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+<?php /** @file */
+
+namespace Zotlabs\Lib;
+
+
+class Config {
+
+ /**
+ * @brief Loads the hub's configuration from database to a cached storage.
+ *
+ * Retrieve a category ($family) of config variables from database to a cached
+ * storage in the global App::$config[$family].
+ *
+ * @param string $family
+ * The category of the configuration value
+ */
+
+ static public function Load($family) {
+ if(! array_key_exists($family, \App::$config))
+ \App::$config[$family] = array();
+
+ if(! array_key_exists('config_loaded', \App::$config[$family])) {
+ $r = q("SELECT * FROM config WHERE cat = '%s'", dbesc($family));
+ if($r !== false) {
+ if($r) {
+ foreach($r as $rr) {
+ $k = $rr['k'];
+ \App::$config[$family][$k] = $rr['v'];
+ }
+ }
+ \App::$config[$family]['config_loaded'] = true;
+ }
+ }
+ }
+
+ /**
+ * @brief Sets a configuration value for the hub.
+ *
+ * Stores a config value ($value) in the category ($family) under the key ($key).
+ *
+ * @param string $family
+ * The category of the configuration value
+ * @param string $key
+ * The configuration key to set
+ * @param mixed $value
+ * The value to store in the configuration
+ * @return mixed
+ * Return the set value, or false if the database update failed
+ */
+
+ static public function Set($family,$key,$value) {
+ // manage array value
+ $dbvalue = ((is_array($value)) ? serialize($value) : $value);
+ $dbvalue = ((is_bool($dbvalue)) ? intval($dbvalue) : $dbvalue);
+
+ if(get_config($family, $key) === false || (! self::get_from_storage($family, $key))) {
+ $ret = q("INSERT INTO config ( cat, k, v ) VALUES ( '%s', '%s', '%s' ) ",
+ dbesc($family),
+ dbesc($key),
+ dbesc($dbvalue)
+ );
+ if($ret) {
+ \App::$config[$family][$key] = $value;
+ $ret = $value;
+ }
+ return $ret;
+ }
+
+ $ret = q("UPDATE config SET v = '%s' WHERE cat = '%s' AND k = '%s'",
+ dbesc($dbvalue),
+ dbesc($family),
+ dbesc($key)
+ );
+
+ if($ret) {
+ \App::$config[$family][$key] = $value;
+ $ret = $value;
+ }
+ return $ret;
+
+ }
+
+ /**
+ * @brief Get a particular config variable given the category name ($family)
+ * and a key.
+ *
+ * Get a particular config variable from the given category ($family) and the
+ * $key from a cached storage in App::$config[$family]. If a key is found in the
+ * DB but does not exist in local config cache, pull it into the cache so we
+ * do not have to hit the DB again for this item.
+ *
+ * Returns false if not set.
+ *
+ * @param string $family
+ * The category of the configuration value
+ * @param string $key
+ * The configuration key to query
+ * @return mixed Return value or false on error or if not set
+ */
+
+ static public function Get($family,$key) {
+ if((! array_key_exists($family, \App::$config)) || (! array_key_exists('config_loaded', \App::$config[$family])))
+ self::Load($family);
+
+ if(array_key_exists('config_loaded', \App::$config[$family])) {
+ if(! array_key_exists($key, \App::$config[$family])) {
+ return false;
+ }
+ return ((! is_array(\App::$config[$family][$key])) && (preg_match('|^a:[0-9]+:{.*}$|s', \App::$config[$family][$key]))
+ ? unserialize(\App::$config[$family][$key])
+ : \App::$config[$family][$key]
+ );
+ }
+
+ return false;
+ }
+
+ /**
+ * @brief Deletes the given key from the hub's configuration database.
+ *
+ * Removes the configured value from the stored cache in App::$config[$family]
+ * and removes it from the database.
+ *
+ * @param string $family
+ * The category of the configuration value
+ * @param string $key
+ * The configuration key to delete
+ * @return mixed
+ */
+
+ static public function Delete($family,$key) {
+
+ $ret = false;
+
+ if(array_key_exists($family, \App::$config) && array_key_exists($key, \App::$config[$family]))
+ unset(\App::$config[$family][$key]);
+ $ret = q("DELETE FROM config WHERE cat = '%s' AND k = '%s'",
+ dbesc($family),
+ dbesc($key)
+ );
+ return $ret;
+ }
+
+
+ /**
+ * @brief Returns a value directly from the database configuration storage.
+ *
+ * This function queries directly the database and bypasses the chached storage
+ * from get_config($family, $key).
+ *
+ * @param string $family
+ * The category of the configuration value
+ * @param string $key
+ * The configuration key to query
+ * @return mixed
+ */
+
+ static private function get_from_storage($family,$key) {
+ $ret = q("SELECT * FROM config WHERE cat = '%s' AND k = '%s' LIMIT 1",
+ dbesc($family),
+ dbesc($key)
+ );
+ return $ret;
+ }
+
+}