}
return $i;
}
-
+
/**
* Get multiple items from the database by key
- *
+ *
* @param string $cls Class to fetch
* @param string $keyCol name of column for key
* @param array $keyVals key values to fetch
* @param boolean $skipNulls return only non-null results?
- *
+ *
* @return array Array of objects, in order
*/
function multiGet($cls, $keyCol, $keyVals, $skipNulls=true)
{
- $result = self::pivotGet($cls, $keyCol, $keyVals);
-
- $values = array_values($result);
-
- if ($skipNulls) {
- $tmp = array();
- foreach ($values as $value) {
- if (!empty($value)) {
- $tmp[] = $value;
- }
- }
- $values = $tmp;
- }
-
- return new ArrayWrapper($values);
+ $result = self::pivotGet($cls, $keyCol, $keyVals);
+
+ $values = array_values($result);
+
+ if ($skipNulls) {
+ $tmp = array();
+ foreach ($values as $value) {
+ if (!empty($value)) {
+ $tmp[] = $value;
+ }
+ }
+ $values = $tmp;
+ }
+
+ return new ArrayWrapper($values);
}
-
+
/**
* Get multiple items from the database by key
- *
+ *
* @param string $cls Class to fetch
* @param string $keyCol name of column for key
* @param array $keyVals key values to fetch
* @param boolean $otherCols Other columns to hold fixed
- *
+ *
* @return array Array mapping $keyVals to objects, or null if not found
*/
static function pivotGet($cls, $keyCol, $keyVals, $otherCols = array())
{
- $result = array_fill_keys($keyVals, null);
-
- $toFetch = array();
-
- foreach ($keyVals as $keyVal) {
-
- $kv = array_merge($otherCols, array($keyCol => $keyVal));
-
- $i = self::multicache($cls, $kv);
-
- if ($i !== false) {
- $result[$keyVal] = $i;
- } else if (!empty($keyVal)) {
- $toFetch[] = $keyVal;
+ if (is_array($keyCol)) {
+ foreach ($keyVals as $keyVal) {
+ $result[implode(',', $keyVal)] = null;
}
+ } else {
+ $result = array_fill_keys($keyVals, null);
}
+
+ $toFetch = array();
+
+ foreach ($keyVals as $keyVal) {
- if (count($toFetch) > 0) {
+ if (is_array($keyCol)) {
+ $kv = array_combine($keyCol, $keyVal);
+ } else {
+ $kv = array($keyCol => $keyVal);
+ }
+
+ $kv = array_merge($otherCols, $kv);
+
+ $i = self::multicache($cls, $kv);
+
+ if ($i !== false) {
+ if (is_array($keyCol)) {
+ $result[implode(',', $keyVal)] = $i;
+ } else {
+ $result[$keyVal] = $i;
+ }
+ } else if (!empty($keyVal)) {
+ $toFetch[] = $keyVal;
+ }
+ }
+
+ if (count($toFetch) > 0) {
$i = DB_DataObject::factory($cls);
if (empty($i)) {
- // TRANS: Exception thrown when a class (%s) could not be instantiated.
- throw new Exception(sprintf(_('Cannot instantiate class %s.'),$cls));
+ throw new Exception(_('Cannot instantiate class ' . $cls));
}
foreach ($otherCols as $otherKeyCol => $otherKeyVal) {
$i->$otherKeyCol = $otherKeyVal;
}
- $i->whereAddIn($keyCol, $toFetch, $i->columnType($keyCol));
- if ($i->find()) {
- while ($i->fetch()) {
- $copy = clone($i);
- $copy->encache();
- $result[$i->$keyCol] = $copy;
- }
+ if (is_array($keyCol)) {
+ $i->whereAdd(self::_inMultiKey($i, $keyCol, $toFetch));
+ } else {
+ $i->whereAddIn($keyCol, $toFetch, $i->columnType($keyCol));
}
+ if ($i->find()) {
+ while ($i->fetch()) {
+ $copy = clone($i);
+ $copy->encache();
+ if (is_array($keyCol)) {
+ $vals = array();
+ foreach ($keyCol as $k) {
+ $vals[] = $i->$k;
+ }
+ $result[implode(',', $vals)] = $copy;
+ } else {
+ $result[$i->$keyCol] = $copy;
+ }
+ }
+ }
+
+ // Save state of DB misses
+
+ foreach ($toFetch as $keyVal) {
+ $r = null;
+ if (is_array($keyCol)) {
+ $r = $result[implode(',', $keyVal)];
+ } else {
+ $r = $result[$keyVal];
+ }
+ if (empty($r)) {
+ if (is_array($keyCol)) {
+ $kv = array_combine($keyCol, $keyVal);
+ } else {
+ $kv = array($keyCol => $keyVal);
+ }
+ $kv = array_merge($otherCols, $kv);
+ // save the fact that no such row exists
+ $c = self::memcache();
+ if (!empty($c)) {
+ $ck = self::multicacheKey($cls, $kv);
+ $c->set($ck, null);
+ }
+ }
+ }
+ }
- // Save state of DB misses
+ return $result;
+ }
- foreach ($toFetch as $keyVal) {
- if (empty($result[$keyVal])) {
- $kv = array_merge($otherCols, array($keyCol => $keyVal));
- // save the fact that no such row exists
- $c = self::memcache();
- if (!empty($c)) {
- $ck = self::multicacheKey($cls, $kv);
- $c->set($ck, null);
- }
+ static function _inMultiKey($i, $cols, $values)
+ {
+ $types = array();
+
+ foreach ($cols as $col) {
+ $types[$col] = $i->columnType($col);
+ }
+
+ $first = true;
+
+ $query = '';
+
+ foreach ($values as $value) {
+ if ($first) {
+ $query .= '( ';
+ $first = false;
+ } else {
+ $query .= ' OR ';
+ }
+ $query .= '( ';
+ $i = 0;
+ $firstc = true;
+ foreach ($cols as $col) {
+ if (!$firstc) {
+ $query .= ' AND ';
+ } else {
+ $firstc = false;
+ }
+ switch ($types[$col]) {
+ case 'string':
+ case 'datetime':
+ $query .= sprintf("%s = %s", $col, $i->_quote($value[$i]));
+ break;
+ default:
+ $query .= sprintf("%s = %s", $col, $value[$i]);
+ break;
}
}
+ $query .= ') ';
+ }
+
+ if (!$first) {
+ $query .= ' )';
}
- return $result;
+ return $query;
+ }
+
+ static function pkeyCols($cls)
+ {
+ $i = DB_DataObject::factory($cls);
+ if (empty($i)) {
+ throw new Exception(_('Cannot instantiate a ' . $cls));
+ }
+ $types = $i->keyTypes();
+ ksort($types);
+
+ $pkey = array();
+
+ foreach ($types as $key => $type) {
+ if ($type == 'K' || $type == 'N') {
+ $pkey[] = $key;
+ }
+ }
+
+ return $pkey;
}
function listGet($cls, $keyCol, $keyVals)
{
+ $pkeyMap = array_fill_keys($keyVals, array());
$result = array_fill_keys($keyVals, array());
- $toFetch = array();
+ $pkeyCols = self::pkeyCols($cls);
- foreach ($keyVals as $keyVal) {
- $l = self::cacheGet(sprintf("%s:list:%s:%s", $cls, $keyCol, $keyVal));
- if ($l !== false) {
- $result[$keyVal] = $l;
- } else {
- $toFetch[] = $keyVal;
+ $toFetch = array();
+ $allPkeys = array();
+
+ // We only cache keys -- not objects!
+
+ foreach ($keyVals as $keyVal) {
+ $l = self::cacheGet(sprintf("%s:list-ids:%s:%s", $cls, $keyCol, $keyVal));
+ if ($l !== false) {
+ $pkeyMap[$keyVal] = $l;
+ foreach ($l as $pkey) {
+ $allPkeys[] = $pkey;
+ }
+ } else {
+ $toFetch[] = $keyVal;
+ }
+ }
+
+ if (count($allPkeys) > 0) {
+ $keyResults = self::pivotGet($cls, $pkeyCols, $allPkeys);
+
+ foreach ($pkeyMap as $keyVal => $pkeyList) {
+ foreach ($pkeyList as $pkeyVal) {
+ $i = $keyResults[implode(',',$pkeyVal)];
+ if (!empty($i)) {
+ $result[$keyVal][] = $i;
+ }
+ }
}
}
if (count($toFetch) > 0) {
- $i = DB_DataObject::factory($cls);
- if (empty($i)) {
- // TRANS: Exception thrown when a class (%s) could not be instantiated.
- throw new Exception(sprintf(_('Cannot instantiate class %s.'),$cls));
- }
+ $i = DB_DataObject::factory($cls);
+ if (empty($i)) {
+ throw new Exception(_('Cannot instantiate class ' . $cls));
+ }
$i->whereAddIn($keyCol, $toFetch, $i->columnType($keyCol));
if ($i->find()) {
+ sprintf("listGet() got {$i->N} results for class $cls key $keyCol");
while ($i->fetch()) {
$copy = clone($i);
$copy->encache();
$result[$i->$keyCol][] = $copy;
+ $pkeyVal = array();
+ foreach ($pkeyCols as $pkeyCol) {
+ $pkeyVal[] = $i->$pkeyCol;
+ }
+ $pkeyMap[$i->$keyCol][] = $pkeyVal;
}
- }
- foreach ($toFetch as $keyVal)
- {
- self::cacheSet(sprintf("%s:list:%s:%s", $cls, $keyCol, $keyVal),
- $result[$keyVal]);
- }
+ }
+ foreach ($toFetch as $keyVal) {
+ self::cacheSet(sprintf("%s:list-ids:%s:%s", $cls, $keyCol, $keyVal),
+ $pkeyMap[$keyVal]);
+ }
}
- return $result;
- }
-
- function columnType($columnName)
- {
- $keys = $this->table();
- if (!array_key_exists($columnName, $keys)) {
- throw new Exception('Unknown key column ' . $columnName . ' in ' . join(',', array_keys($keys)));
- }
-
- $def = $keys[$columnName];
-
- if ($def & DB_DATAOBJECT_INT) {
- return 'integer';
- } else {
- return 'string';
- }
+ return $result;
}
+ function columnType($columnName)
+ {
+ $keys = $this->table();
+ if (!array_key_exists($columnName, $keys)) {
+ throw new Exception('Unknown key column ' . $columnName . ' in ' . join(',', array_keys($keys)));
+ }
+
+ $def = $keys[$columnName];
+
+ if ($def & DB_DATAOBJECT_INT) {
+ return 'integer';
+ } else {
+ return 'string';
+ }
+ }
+
/**
- * @fixme Should this return false on lookup fail to match staticGet?
+ * @todo FIXME: Should this return false on lookup fail to match staticGet?
*/
function pkeyGet($cls, $kv)
{
return false;
}
foreach ($kv as $k => $v) {
- if (is_null($v)) {
- // XXX: possible SQL injection...? Don't
- // pass keys from the browser, eh.
- $i->whereAdd("$k is null");
- } else {
- $i->$k = $v;
- }
+ if (is_null($v)) {
+ // XXX: possible SQL injection...? Don't
+ // pass keys from the browser, eh.
+ $i->whereAdd("$k is null");
+ } else {
+ $i->$k = $v;
+ }
}
if ($i->find(true)) {
$i->encache();
continue;
}
if (in_array($func, $ignoreStatic)) {
- continue; // @fixme this shouldn't be needed?
+ continue; // @todo FIXME: This shouldn't be needed?
}
$here = get_class($frame['object']) . '->' . $func;
break;
if (!$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."));
+ throw new Exception(_('No database name or DSN found anywhere.'));
}
return $dsn;
projects / quix0rs-gnu-social.git / commitdiff