951 lines
28 KiB
PHP
951 lines
28 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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class Memcached_DataObject extends Safe_DataObject
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{
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/**
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* Wrapper for DB_DataObject's static lookup using memcached
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* as backing instead of an in-process cache array.
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*
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* @param string $cls classname of object type to load
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* @param mixed $k key field name, or value for primary key
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* @param mixed $v key field value, or leave out for primary key lookup
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* @return mixed Memcached_DataObject subtype or false
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*/
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function &staticGet($cls, $k, $v=null)
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{
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if (is_null($v)) {
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$v = $k;
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$keys = self::pkeyCols($cls);
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if (count($keys) > 1) {
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// FIXME: maybe call pkeyGet() ourselves?
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throw new Exception('Use pkeyGet() for compound primary keys');
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}
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$k = $keys[0];
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}
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$i = Memcached_DataObject::getcached($cls, $k, $v);
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if ($i === false) { // false == cache miss
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$i = DB_DataObject::factory($cls);
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if (empty($i)) {
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$i = false;
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return $i;
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}
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$result = $i->get($k, $v);
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if ($result) {
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// Hit!
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$i->encache();
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} else {
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// save the fact that no such row exists
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$c = self::memcache();
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if (!empty($c)) {
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$ck = self::cachekey($cls, $k, $v);
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$c->set($ck, null);
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}
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$i = false;
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}
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}
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return $i;
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}
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/**
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* Get multiple items from the database by key
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*
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* @param string $cls Class to fetch
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* @param string $keyCol name of column for key
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* @param array $keyVals key values to fetch
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* @param boolean $skipNulls return only non-null results?
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*
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* @return array Array of objects, in order
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*/
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function multiGet($cls, $keyCol, $keyVals, $skipNulls=true)
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{
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$result = self::pivotGet($cls, $keyCol, $keyVals);
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$values = array_values($result);
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if ($skipNulls) {
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$tmp = array();
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foreach ($values as $value) {
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if (!empty($value)) {
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$tmp[] = $value;
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}
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}
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$values = $tmp;
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}
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return new ArrayWrapper($values);
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}
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/**
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* Get multiple items from the database by key
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*
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* @param string $cls Class to fetch
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* @param string $keyCol name of column for key
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* @param array $keyVals key values to fetch
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* @param boolean $otherCols Other columns to hold fixed
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*
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* @return array Array mapping $keyVals to objects, or null if not found
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*/
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static function pivotGet($cls, $keyCol, $keyVals, $otherCols = array())
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{
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if (is_array($keyCol)) {
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foreach ($keyVals as $keyVal) {
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$result[implode(',', $keyVal)] = null;
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}
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} else {
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$result = array_fill_keys($keyVals, null);
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}
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$toFetch = array();
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foreach ($keyVals as $keyVal) {
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if (is_array($keyCol)) {
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$kv = array_combine($keyCol, $keyVal);
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} else {
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$kv = array($keyCol => $keyVal);
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}
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$kv = array_merge($otherCols, $kv);
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$i = self::multicache($cls, $kv);
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if ($i !== false) {
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if (is_array($keyCol)) {
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$result[implode(',', $keyVal)] = $i;
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} else {
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$result[$keyVal] = $i;
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}
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} else if (!empty($keyVal)) {
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$toFetch[] = $keyVal;
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}
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}
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if (count($toFetch) > 0) {
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$i = DB_DataObject::factory($cls);
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if (empty($i)) {
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// TRANS: Exception thrown when a program code class (%s) cannot be instantiated.
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throw new Exception(sprintf(_('Cannot instantiate class %s.'),$cls));
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}
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foreach ($otherCols as $otherKeyCol => $otherKeyVal) {
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$i->$otherKeyCol = $otherKeyVal;
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}
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if (is_array($keyCol)) {
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$i->whereAdd(self::_inMultiKey($i, $keyCol, $toFetch));
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} else {
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$i->whereAddIn($keyCol, $toFetch, $i->columnType($keyCol));
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}
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if ($i->find()) {
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while ($i->fetch()) {
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$copy = clone($i);
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$copy->encache();
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if (is_array($keyCol)) {
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$vals = array();
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foreach ($keyCol as $k) {
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$vals[] = $i->$k;
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}
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$result[implode(',', $vals)] = $copy;
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} else {
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$result[$i->$keyCol] = $copy;
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}
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}
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}
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// Save state of DB misses
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foreach ($toFetch as $keyVal) {
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$r = null;
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if (is_array($keyCol)) {
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$r = $result[implode(',', $keyVal)];
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} else {
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$r = $result[$keyVal];
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}
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if (empty($r)) {
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if (is_array($keyCol)) {
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$kv = array_combine($keyCol, $keyVal);
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} else {
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$kv = array($keyCol => $keyVal);
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}
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$kv = array_merge($otherCols, $kv);
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// save the fact that no such row exists
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$c = self::memcache();
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if (!empty($c)) {
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$ck = self::multicacheKey($cls, $kv);
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$c->set($ck, null);
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}
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}
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}
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}
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return $result;
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}
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static function _inMultiKey($i, $cols, $values)
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{
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$types = array();
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foreach ($cols as $col) {
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$types[$col] = $i->columnType($col);
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}
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$first = true;
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$query = '';
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foreach ($values as $value) {
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if ($first) {
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$query .= '( ';
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$first = false;
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} else {
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$query .= ' OR ';
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}
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$query .= '( ';
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$i = 0;
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$firstc = true;
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foreach ($cols as $col) {
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if (!$firstc) {
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$query .= ' AND ';
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} else {
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$firstc = false;
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}
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switch ($types[$col]) {
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case 'string':
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case 'datetime':
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$query .= sprintf("%s = %s", $col, $i->_quote($value[$i]));
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break;
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default:
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$query .= sprintf("%s = %s", $col, $value[$i]);
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break;
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}
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}
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$query .= ') ';
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}
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if (!$first) {
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$query .= ' )';
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}
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return $query;
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}
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static function pkeyCols($cls)
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{
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$i = DB_DataObject::factory($cls);
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if (empty($i)) {
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throw new Exception(_('Cannot instantiate a ' . $cls));
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}
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$types = $i->keyTypes();
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ksort($types);
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$pkey = array();
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foreach ($types as $key => $type) {
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if ($type == 'K' || $type == 'N') {
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$pkey[] = $key;
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}
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}
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return $pkey;
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}
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function listGet($cls, $keyCol, $keyVals)
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{
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$pkeyMap = array_fill_keys($keyVals, array());
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$result = array_fill_keys($keyVals, array());
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$pkeyCols = self::pkeyCols($cls);
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$toFetch = array();
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$allPkeys = array();
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// We only cache keys -- not objects!
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foreach ($keyVals as $keyVal) {
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$l = self::cacheGet(sprintf("%s:list-ids:%s:%s", strtolower($cls), $keyCol, $keyVal));
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if ($l !== false) {
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$pkeyMap[$keyVal] = $l;
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foreach ($l as $pkey) {
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$allPkeys[] = $pkey;
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}
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} else {
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$toFetch[] = $keyVal;
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}
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}
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if (count($allPkeys) > 0) {
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$keyResults = self::pivotGet($cls, $pkeyCols, $allPkeys);
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foreach ($pkeyMap as $keyVal => $pkeyList) {
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foreach ($pkeyList as $pkeyVal) {
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$i = $keyResults[implode(',',$pkeyVal)];
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if (!empty($i)) {
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$result[$keyVal][] = $i;
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}
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}
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}
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}
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if (count($toFetch) > 0) {
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$i = DB_DataObject::factory($cls);
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if (empty($i)) {
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throw new Exception(_('Cannot instantiate class ' . $cls));
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}
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$i->whereAddIn($keyCol, $toFetch, $i->columnType($keyCol));
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if ($i->find()) {
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sprintf("listGet() got {$i->N} results for class $cls key $keyCol");
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while ($i->fetch()) {
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$copy = clone($i);
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$copy->encache();
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$result[$i->$keyCol][] = $copy;
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$pkeyVal = array();
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foreach ($pkeyCols as $pkeyCol) {
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$pkeyVal[] = $i->$pkeyCol;
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}
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$pkeyMap[$i->$keyCol][] = $pkeyVal;
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}
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}
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foreach ($toFetch as $keyVal) {
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self::cacheSet(sprintf("%s:list-ids:%s:%s", strtolower($cls), $keyCol, $keyVal),
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$pkeyMap[$keyVal]);
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}
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}
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return $result;
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}
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function columnType($columnName)
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{
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$keys = $this->table();
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if (!array_key_exists($columnName, $keys)) {
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throw new Exception('Unknown key column ' . $columnName . ' in ' . join(',', array_keys($keys)));
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}
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$def = $keys[$columnName];
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if ($def & DB_DATAOBJECT_INT) {
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return 'integer';
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} else {
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return 'string';
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}
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}
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/**
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* @todo FIXME: Should this return false on lookup fail to match staticGet?
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*/
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function pkeyGet($cls, $kv)
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{
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$i = Memcached_DataObject::multicache($cls, $kv);
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if ($i !== false) { // false == cache miss
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return $i;
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} else {
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$i = DB_DataObject::factory($cls);
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if (empty($i) || PEAR::isError($i)) {
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return false;
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}
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foreach ($kv as $k => $v) {
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if (is_null($v)) {
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// XXX: possible SQL injection...? Don't
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// pass keys from the browser, eh.
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$i->whereAdd("$k is null");
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} else {
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$i->$k = $v;
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}
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}
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if ($i->find(true)) {
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$i->encache();
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} else {
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$i = null;
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$c = self::memcache();
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if (!empty($c)) {
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$ck = self::multicacheKey($cls, $kv);
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$c->set($ck, null);
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}
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}
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return $i;
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}
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}
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function insert()
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{
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$result = parent::insert();
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if ($result) {
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$this->fixupTimestamps();
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$this->encache(); // in case of cached negative lookups
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}
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return $result;
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}
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function update($orig=null)
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{
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if (is_object($orig) && $orig instanceof Memcached_DataObject) {
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$orig->decache(); # might be different keys
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}
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$result = parent::update($orig);
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if ($result) {
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$this->fixupTimestamps();
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$this->encache();
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}
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return $result;
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}
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function delete()
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{
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$this->decache(); # while we still have the values!
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return parent::delete();
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}
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static function memcache() {
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return Cache::instance();
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}
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static function cacheKey($cls, $k, $v) {
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if (is_object($cls) || is_object($k) || (is_object($v) && !($v instanceof DB_DataObject_Cast))) {
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$e = new Exception();
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common_log(LOG_ERR, __METHOD__ . ' object in param: ' .
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str_replace("\n", " ", $e->getTraceAsString()));
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}
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$vstr = self::valueString($v);
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return Cache::key(strtolower($cls).':'.$k.':'.$vstr);
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}
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static function getcached($cls, $k, $v) {
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$c = Memcached_DataObject::memcache();
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if (!$c) {
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return false;
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} else {
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$obj = $c->get(Memcached_DataObject::cacheKey($cls, $k, $v));
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if (0 == strcasecmp($cls, 'User')) {
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// Special case for User
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if (is_object($obj) && is_object($obj->id)) {
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common_log(LOG_ERR, "User " . $obj->nickname . " was cached with User as ID; deleting");
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$c->delete(Memcached_DataObject::cacheKey($cls, $k, $v));
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return false;
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}
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}
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return $obj;
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}
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}
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function keyTypes()
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{
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// ini-based classes return number-indexed arrays. handbuilt
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// classes return column => keytype. Make this uniform.
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$keys = $this->keys();
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$keyskeys = array_keys($keys);
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if (is_string($keyskeys[0])) {
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return $keys;
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}
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global $_DB_DATAOBJECT;
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if (!isset($_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"])) {
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$this->databaseStructure();
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}
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return $_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"];
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}
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function encache()
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{
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$c = $this->memcache();
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if (!$c) {
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return false;
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} else if ($this->tableName() == 'user' && is_object($this->id)) {
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// Special case for User bug
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$e = new Exception();
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common_log(LOG_ERR, __METHOD__ . ' caching user with User object as ID ' .
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str_replace("\n", " ", $e->getTraceAsString()));
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return false;
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} else {
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$keys = $this->_allCacheKeys();
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foreach ($keys as $key) {
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$c->set($key, $this);
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}
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}
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}
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function decache()
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{
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$c = $this->memcache();
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if (!$c) {
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return false;
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}
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$keys = $this->_allCacheKeys();
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foreach ($keys as $key) {
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$c->delete($key, $this);
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}
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}
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function _allCacheKeys()
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{
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$ckeys = array();
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$types = $this->keyTypes();
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ksort($types);
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$pkey = array();
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$pval = array();
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foreach ($types as $key => $type) {
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assert(!empty($key));
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if ($type == 'U') {
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if (empty($this->$key)) {
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continue;
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}
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$ckeys[] = $this->cacheKey($this->tableName(), $key, self::valueString($this->$key));
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} else if ($type == 'K' || $type == 'N') {
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$pkey[] = $key;
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$pval[] = self::valueString($this->$key);
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} else {
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// Low level exception. No need for i18n as discussed with Brion.
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throw new Exception("Unknown key type $key => $type for " . $this->tableName());
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}
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}
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assert(count($pkey) > 0);
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// XXX: should work for both compound and scalar pkeys
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$pvals = implode(',', $pval);
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$pkeys = implode(',', $pkey);
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$ckeys[] = $this->cacheKey($this->tableName(), $pkeys, $pvals);
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return $ckeys;
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}
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function multicache($cls, $kv)
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{
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ksort($kv);
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$c = self::memcache();
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if (!$c) {
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return false;
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} else {
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return $c->get(self::multicacheKey($cls, $kv));
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}
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}
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static function multicacheKey($cls, $kv)
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{
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ksort($kv);
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$pkeys = implode(',', array_keys($kv));
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$pvals = implode(',', array_values($kv));
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return self::cacheKey($cls, $pkeys, $pvals);
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}
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function getSearchEngine($table)
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{
|
|
require_once INSTALLDIR.'/lib/search_engines.php';
|
|
|
|
if (Event::handle('GetSearchEngine', array($this, $table, &$search_engine))) {
|
|
if ('mysql' === common_config('db', 'type')) {
|
|
$type = common_config('search', 'type');
|
|
if ($type == 'like') {
|
|
$search_engine = new MySQLLikeSearch($this, $table);
|
|
} else if ($type == 'fulltext') {
|
|
$search_engine = new MySQLSearch($this, $table);
|
|
} else {
|
|
// Low level exception. No need for i18n as discussed with Brion.
|
|
throw new ServerException('Unknown search type: ' . $type);
|
|
}
|
|
} else {
|
|
$search_engine = new PGSearch($this, $table);
|
|
}
|
|
}
|
|
|
|
return $search_engine;
|
|
}
|
|
|
|
static function cachedQuery($cls, $qry, $expiry=3600)
|
|
{
|
|
$c = Memcached_DataObject::memcache();
|
|
if (!$c) {
|
|
$inst = new $cls();
|
|
$inst->query($qry);
|
|
return $inst;
|
|
}
|
|
$key_part = Cache::keyize($cls).':'.md5($qry);
|
|
$ckey = Cache::key($key_part);
|
|
$stored = $c->get($ckey);
|
|
|
|
if ($stored !== false) {
|
|
return new ArrayWrapper($stored);
|
|
}
|
|
|
|
$inst = new $cls();
|
|
$inst->query($qry);
|
|
$cached = array();
|
|
while ($inst->fetch()) {
|
|
$cached[] = clone($inst);
|
|
}
|
|
$inst->free();
|
|
$c->set($ckey, $cached, Cache::COMPRESSED, $expiry);
|
|
return new ArrayWrapper($cached);
|
|
}
|
|
|
|
/**
|
|
* sends query to database - this is the private one that must work
|
|
* - internal functions use this rather than $this->query()
|
|
*
|
|
* Overridden to do logging.
|
|
*
|
|
* @param string $string
|
|
* @access private
|
|
* @return mixed none or PEAR_Error
|
|
*/
|
|
function _query($string)
|
|
{
|
|
if (common_config('db', 'annotate_queries')) {
|
|
$string = $this->annotateQuery($string);
|
|
}
|
|
|
|
$start = microtime(true);
|
|
$fail = false;
|
|
$result = null;
|
|
if (Event::handle('StartDBQuery', array($this, $string, &$result))) {
|
|
common_perf_counter('query', $string);
|
|
try {
|
|
$result = parent::_query($string);
|
|
} catch (Exception $e) {
|
|
$fail = $e;
|
|
}
|
|
Event::handle('EndDBQuery', array($this, $string, &$result));
|
|
}
|
|
$delta = microtime(true) - $start;
|
|
|
|
$limit = common_config('db', 'log_slow_queries');
|
|
if (($limit > 0 && $delta >= $limit) || common_config('db', 'log_queries')) {
|
|
$clean = $this->sanitizeQuery($string);
|
|
if ($fail) {
|
|
$msg = sprintf("FAILED DB query (%0.3fs): %s - %s", $delta, $fail->getMessage(), $clean);
|
|
} else {
|
|
$msg = sprintf("DB query (%0.3fs): %s", $delta, $clean);
|
|
}
|
|
common_log(LOG_DEBUG, $msg);
|
|
}
|
|
|
|
if ($fail) {
|
|
throw $fail;
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Find the first caller in the stack trace that's not a
|
|
* low-level database function and add a comment to the
|
|
* query string. This should then be visible in process lists
|
|
* and slow query logs, to help identify problem areas.
|
|
*
|
|
* Also marks whether this was a web GET/POST or which daemon
|
|
* was running it.
|
|
*
|
|
* @param string $string SQL query string
|
|
* @return string SQL query string, with a comment in it
|
|
*/
|
|
function annotateQuery($string)
|
|
{
|
|
$ignore = array('annotateQuery',
|
|
'_query',
|
|
'query',
|
|
'get',
|
|
'insert',
|
|
'delete',
|
|
'update',
|
|
'find');
|
|
$ignoreStatic = array('staticGet',
|
|
'pkeyGet',
|
|
'cachedQuery');
|
|
$here = get_class($this); // if we get confused
|
|
$bt = debug_backtrace();
|
|
|
|
// Find the first caller that's not us?
|
|
foreach ($bt as $frame) {
|
|
$func = $frame['function'];
|
|
if (isset($frame['type']) && $frame['type'] == '::') {
|
|
if (in_array($func, $ignoreStatic)) {
|
|
continue;
|
|
}
|
|
$here = $frame['class'] . '::' . $func;
|
|
break;
|
|
} else if (isset($frame['type']) && $frame['type'] == '->') {
|
|
if ($frame['object'] === $this && in_array($func, $ignore)) {
|
|
continue;
|
|
}
|
|
if (in_array($func, $ignoreStatic)) {
|
|
continue; // @todo FIXME: This shouldn't be needed?
|
|
}
|
|
$here = get_class($frame['object']) . '->' . $func;
|
|
break;
|
|
}
|
|
$here = $func;
|
|
break;
|
|
}
|
|
|
|
if (php_sapi_name() == 'cli') {
|
|
$context = basename($_SERVER['PHP_SELF']);
|
|
} else {
|
|
$context = $_SERVER['REQUEST_METHOD'];
|
|
}
|
|
|
|
// Slip the comment in after the first command,
|
|
// or DB_DataObject gets confused about handling inserts and such.
|
|
$parts = explode(' ', $string, 2);
|
|
$parts[0] .= " /* $context $here */";
|
|
return implode(' ', $parts);
|
|
}
|
|
|
|
// Sanitize a query for logging
|
|
// @fixme don't trim spaces in string literals
|
|
function sanitizeQuery($string)
|
|
{
|
|
$string = preg_replace('/\s+/', ' ', $string);
|
|
$string = trim($string);
|
|
return $string;
|
|
}
|
|
|
|
// We overload so that 'SET NAMES "utf8"' is called for
|
|
// each connection
|
|
|
|
function _connect()
|
|
{
|
|
global $_DB_DATAOBJECT;
|
|
|
|
$sum = $this->_getDbDsnMD5();
|
|
|
|
if (!empty($_DB_DATAOBJECT['CONNECTIONS'][$sum]) &&
|
|
!PEAR::isError($_DB_DATAOBJECT['CONNECTIONS'][$sum])) {
|
|
$exists = true;
|
|
} else {
|
|
$exists = false;
|
|
}
|
|
|
|
// @fixme horrible evil hack!
|
|
//
|
|
// In multisite configuration we don't want to keep around a separate
|
|
// connection for every database; we could end up with thousands of
|
|
// connections open per thread. In an ideal world we might keep
|
|
// a connection per server and select different databases, but that'd
|
|
// be reliant on having the same db username/pass as well.
|
|
//
|
|
// MySQL connections are cheap enough we're going to try just
|
|
// closing out the old connection and reopening when we encounter
|
|
// a new DSN.
|
|
//
|
|
// WARNING WARNING if we end up actually using multiple DBs at a time
|
|
// we'll need some fancier logic here.
|
|
if (!$exists && !empty($_DB_DATAOBJECT['CONNECTIONS']) && php_sapi_name() == 'cli') {
|
|
foreach ($_DB_DATAOBJECT['CONNECTIONS'] as $index => $conn) {
|
|
if (!empty($conn)) {
|
|
$conn->disconnect();
|
|
}
|
|
unset($_DB_DATAOBJECT['CONNECTIONS'][$index]);
|
|
}
|
|
}
|
|
|
|
$result = parent::_connect();
|
|
|
|
if ($result && !$exists) {
|
|
$DB = &$_DB_DATAOBJECT['CONNECTIONS'][$this->_database_dsn_md5];
|
|
if (common_config('db', 'type') == 'mysql' &&
|
|
common_config('db', 'utf8')) {
|
|
$conn = $DB->connection;
|
|
if (!empty($conn)) {
|
|
if ($DB instanceof DB_mysqli) {
|
|
mysqli_set_charset($conn, 'utf8');
|
|
} else if ($DB instanceof DB_mysql) {
|
|
mysql_set_charset('utf8', $conn);
|
|
}
|
|
}
|
|
}
|
|
// Needed to make timestamp values usefully comparable.
|
|
if (common_config('db', 'type') == 'mysql') {
|
|
parent::_query("set time_zone='+0:00'");
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
// XXX: largely cadged from DB_DataObject
|
|
|
|
function _getDbDsnMD5()
|
|
{
|
|
if ($this->_database_dsn_md5) {
|
|
return $this->_database_dsn_md5;
|
|
}
|
|
|
|
$dsn = $this->_getDbDsn();
|
|
|
|
if (is_string($dsn)) {
|
|
$sum = md5($dsn);
|
|
} else {
|
|
/// support array based dsn's
|
|
$sum = md5(serialize($dsn));
|
|
}
|
|
|
|
return $sum;
|
|
}
|
|
|
|
function _getDbDsn()
|
|
{
|
|
global $_DB_DATAOBJECT;
|
|
|
|
if (empty($_DB_DATAOBJECT['CONFIG'])) {
|
|
DB_DataObject::_loadConfig();
|
|
}
|
|
|
|
$options = &$_DB_DATAOBJECT['CONFIG'];
|
|
|
|
// if the databse dsn dis defined in the object..
|
|
|
|
$dsn = isset($this->_database_dsn) ? $this->_database_dsn : null;
|
|
|
|
if (!$dsn) {
|
|
|
|
if (!$this->_database) {
|
|
$this->_database = isset($options["table_{$this->__table}"]) ? $options["table_{$this->__table}"] : null;
|
|
}
|
|
|
|
if ($this->_database && !empty($options["database_{$this->_database}"])) {
|
|
$dsn = $options["database_{$this->_database}"];
|
|
} else if (!empty($options['database'])) {
|
|
$dsn = $options['database'];
|
|
}
|
|
}
|
|
|
|
if (!$dsn) {
|
|
// TRANS: Exception thrown when database name or Data Source Name could not be found.
|
|
throw new Exception(_('No database name or DSN found anywhere.'));
|
|
}
|
|
|
|
return $dsn;
|
|
}
|
|
|
|
static function blow()
|
|
{
|
|
$c = self::memcache();
|
|
|
|
if (empty($c)) {
|
|
return false;
|
|
}
|
|
|
|
$args = func_get_args();
|
|
|
|
$format = array_shift($args);
|
|
|
|
$keyPart = vsprintf($format, $args);
|
|
|
|
$cacheKey = Cache::key($keyPart);
|
|
|
|
return $c->delete($cacheKey);
|
|
}
|
|
|
|
function fixupTimestamps()
|
|
{
|
|
// Fake up timestamp columns
|
|
$columns = $this->table();
|
|
foreach ($columns as $name => $type) {
|
|
if ($type & DB_DATAOBJECT_MYSQLTIMESTAMP) {
|
|
$this->$name = common_sql_now();
|
|
}
|
|
}
|
|
}
|
|
|
|
function debugDump()
|
|
{
|
|
common_debug("debugDump: " . common_log_objstring($this));
|
|
}
|
|
|
|
function raiseError($message, $type = null, $behaviour = null)
|
|
{
|
|
$id = get_class($this);
|
|
if (!empty($this->id)) {
|
|
$id .= ':' . $this->id;
|
|
}
|
|
if ($message instanceof PEAR_Error) {
|
|
$message = $message->getMessage();
|
|
}
|
|
// Low level exception. No need for i18n as discussed with Brion.
|
|
throw new ServerException("[$id] DB_DataObject error [$type]: $message");
|
|
}
|
|
|
|
static function cacheGet($keyPart)
|
|
{
|
|
$c = self::memcache();
|
|
|
|
if (empty($c)) {
|
|
return false;
|
|
}
|
|
|
|
$cacheKey = Cache::key($keyPart);
|
|
|
|
return $c->get($cacheKey);
|
|
}
|
|
|
|
static function cacheSet($keyPart, $value, $flag=null, $expiry=null)
|
|
{
|
|
$c = self::memcache();
|
|
|
|
if (empty($c)) {
|
|
return false;
|
|
}
|
|
|
|
$cacheKey = Cache::key($keyPart);
|
|
|
|
return $c->set($cacheKey, $value, $flag, $expiry);
|
|
}
|
|
|
|
static function valueString($v)
|
|
{
|
|
$vstr = null;
|
|
if (is_object($v) && $v instanceof DB_DataObject_Cast) {
|
|
switch ($v->type) {
|
|
case 'date':
|
|
$vstr = $v->year . '-' . $v->month . '-' . $v->day;
|
|
break;
|
|
case 'blob':
|
|
case 'string':
|
|
case 'sql':
|
|
case 'datetime':
|
|
case 'time':
|
|
// Low level exception. No need for i18n as discussed with Brion.
|
|
throw new ServerException("Unhandled DB_DataObject_Cast type passed as cacheKey value: '$v->type'");
|
|
break;
|
|
default:
|
|
// Low level exception. No need for i18n as discussed with Brion.
|
|
throw new ServerException("Unknown DB_DataObject_Cast type passed as cacheKey value: '$v->type'");
|
|
break;
|
|
}
|
|
} else {
|
|
$vstr = strval($v);
|
|
}
|
|
return $vstr;
|
|
}
|
|
}
|