/**
* Add a item to the queue for persitance on flush
*
* @param $trancation
* @param $onFailure
*
* @return bool
*/
public function flush($transaction = null, $onFailure = self::FLUSH_ABORT, $throwExceptions = true)
{
if (is_null($transaction)) {
$transaction = self::TRANSACTIONS_ALL;
}
if (is_null($onFailure)) {
$onFailure = self::FLUSH_ABORT;
}
$response = new Response();
$exceptions = [];
$haveAnyTransactionsFailed = false;
// simulate
$simulate = $this->debug & self::DEBUG_SIMULATE;
// profiler
$profiler = new Profiler("Record manager");
$profiler->log();
// debugging query show
$debugQuery = null;
if ($this->debug & self::DEBUG_SHOW_QUERY) {
$debugQuery = function ($e, $event, $data) {
echo $data . "\n";
};
$this->db->debug->on(Debug::INFO, $debugQuery);
}
// trap all throw exceptions so that we can properly unattach the $db->debug->on( Pg::QueryPassed $listener )
try {
// iterate selected transactions
foreach ($this->getQueue($transaction, true, true) as $transaction => $queue) {
unset($this->queue[$transaction]);
$taskResponse = null;
$hasTransactionFailed = false;
$beginTransaction = new Query("BEGIN TRANSACTION READ WRITE; /* %transaction:% */");
$beginTransaction->transaction = $transaction;
$this->db->query($beginTransaction);
$this->eventEmitter->emit(EventEmitter::TRANSACTION_START, $this, $transaction, $queue);
// loop over our tasks
foreach ($queue as $task) {
// are we continuing to process?
if ($hasTransactionFailed or $haveAnyTransactionsFailed && $onFailure === self::FLUSH_ABORT) {
$taskResponse = Response::ABORTED;
} else {
try {
$taskResponse = $task->execute($this->db, $simulate) ? Response::SUCCESS : Response::FAILED;
} catch (\Exception $e) {
// It'd be nice if we could just test for Query exceptions here but unfortunately PHPUnit dicks pretty hard with exception types.
// @Mr Beale. I realise this violates the "only handle exceptions that you understand" rule but I can't find a way round this. Pete
$taskResponse = $e;
$exceptions[] = $e;
}
}
// transaction success
if ($taskResponse !== Response::SUCCESS) {
$hasTransactionFailed = true;
$haveAnyTransactionsFailed = true;
}
$response->add($transaction, $task, $taskResponse);
}
// end or rollback transaction
$endTransaction = new Query("%commitOrRollback:% TRANSACTION; /* %transaction:% */");
$endTransaction->commitOrRollback = new Raw($hasTransactionFailed ? 'ROLLBACK' : 'COMMIT');
$endTransaction->transaction = $transaction;
$this->db->query($endTransaction);
// response rollback
if ($hasTransactionFailed) {
$response->rollback($transaction);
}
$profiler->log($transaction);
}
// if we've gathered any exceptions throw them here
if ($throwExceptions and $exceptions) {
throw $exceptions[0];
}
$response->profilerAssign($profiler);
} catch (\Exception $e) {
$this->db->debug->removeListener(Pg::QUERY_PARSED, $debugQuery);
throw $e;
}
return $response;
}
/**
* See, http://www.postgresql.org/docs/8.4/interactive/catalog-pg-constraint.html
* @return bool. Populate the static variables $this->references $this->isReferencedBy
*/
private function preloadReferences()
{
// References defined in pg_catalog
$sql = 'SELECT * FROM dev."vAttributeReferences" WHERE "isInherited" = false';
$relationships = $this->db->query(new Query($sql));
foreach ($relationships->fetch() as $relationship) {
$fk = $this->instancesPersisted[$relationship['fk_key']];
$pk = $this->instancesPersisted[$relationship['pk_key']];
if (!$fk or !$pk) {
d_pr($relationship);
die;
}
// slower alternatives. They all do the same thing
// $fk = $this->persistedGet()->findOneByKey( $relationship['fk_key'] );
// $pk = $this->persistedGet()->findOneByKey( $relationship['pk_key'] );
// $fk = $this->find( $relationship['fk_key'] );
// $pk = $this->find( $relationship['pk_key'] );
$fk->addReference($pk);
}
// look for normality defined relationships
$profiler = new Profiler(__FUNCTION__);
$profiler->log();
foreach (EntityRelation::r()->findAll() as $relation) {
$tags = $relation->getNormalityTags();
if (isset($tags['references'])) {
foreach ($tags['references'] as $reference) {
$reference = array_map('trim', explode('=', $reference));
$fk = $this->findByRelation($relation)->findOneByName($reference[0]);
$pk = $this->findByIdentifier($reference[1]);
// go the database to get child records, using the Relation repo methods causes a infinite preload loop
$query = new Query("SELECT oid::text || '.' || %attnum:int%::text FROM dev.relationDescendants( %oid:int%::oid ) as _ ( oid );", array('attnum' => $pk->get('attnum'), 'oid' => $pk->getRelation()->get('oid')));
foreach ($this->db->query($query)->fetch() as $pk_key) {
$fk->addReference($this->find($pk_key));
}
}
}
}
// echo $profiler->log()->output();
}
/**
* See, http://www.postgresql.org/docs/8.4/interactive/catalog-pg-constraint.html
* @return bool. Populate the static variables $this->references $this->isReferencedBy
*/
private function loadReferences()
{
// References defined in pg_catalog
$sql = new Raw('SELECT * FROM dev."vAttributeReferences" WHERE "isInherited" = false');
$sql = new Raw(<<<SQL
-- Based on. http://code.google.com/p/pgutils/ but very heavily modified
-- Potentially inheritance aware/compensating. Be careful. Use the unit tests.
WITH "vRelationDescendants" as (
SELECT
c.oid,
c.relname,
(
WITH RECURSIVE
q( oid ) AS
(
SELECT
crd.oid
FROM
pg_class crd
WHERE
crd.oid = c.oid
UNION ALL
SELECT i.inhrelid FROM q INNER JOIN pg_inherits i ON q.oid = i.inhparent
)
SELECT oid FROM q WHERE oid = c.oid
) as childoid
FROM
pg_class c
INNER JOIN
pg_namespace n ON n.oid = c.relnamespace
ORDER BY
n.nspname, c.relname
), "vAttributeReferences" as (
SELECT
fkr.oid <> fkrd.oid AS "isInheritedSource",
pkr.oid <> pkrd.oid AS "isInheritedTarget",
( fkr.oid <> fkrd.oid OR pkr.oid <> pkrd.oid ) as "isInherited",
fkn.nspname AS fk_namespace,
fkr.relname AS fk_relation,
fkr.oid AS fk_oid,
fka.attname AS fk_column,
fka.attnum as "fk_attnum",
-- initByData
fkr.oid::text || '.' || fka.attnum::text AS fk_key,
(
EXISTS (
SELECT
pg_index.indexrelid,
pg_index.indrelid,
pg_index.indkey,
pg_index.indclass,
pg_index.indnatts,
pg_index.indisunique,
pg_index.indisprimary,
pg_index.indisclustered,
pg_index.indexprs,
pg_index.indpred
FROM
pg_index
WHERE
pg_index.indrelid = fkr.oid AND pg_index.indkey[0] = fka.attnum
)
) AS fk_indexed,
pkn.nspname AS pk_namespace,
pkr.relname AS pk_relation,
pkr.oid AS pk_oid,
pka.attname AS pk_column,
pka.attnum as "pk_attnum",
-- initByData
pkr.oid::text || '.' || pka.attnum::text AS pk_key,
(
EXISTS (
SELECT
pg_index.indexrelid,
pg_index.indrelid,
pg_index.indkey,
pg_index.indclass,
pg_index.indnatts,
pg_index.indisunique,
pg_index.indisprimary,
pg_index.indisclustered,
pg_index.indexprs,
pg_index.indpred
FROM
pg_index
WHERE
pg_index.indrelid = pkr.oid AND
pg_index.indkey[0] = pka.attnum
)
) AS pk_indexed,
c.confupdtype::text || c.confdeltype::text AS ud,
cn.nspname AS c_namespace,
c.conname AS c_name
FROM (
(
(
(
(
(
(
pg_constraint c
JOIN
pg_namespace cn ON cn.oid = c.connamespace
)
INNER JOIN
"vRelationDescendants" as fkrd ON c.conrelid = fkrd.oid
INNER JOIN
pg_class fkr ON fkr.oid = fkrd.childoid
)
JOIN
pg_namespace fkn ON fkn.oid = fkr.relnamespace
)
JOIN
pg_attribute fka ON fka.attrelid = c.conrelid AND fka.attnum = ANY (c.conkey)
)
INNER JOIN
"vRelationDescendants" as pkrd ON c.confrelid = pkrd.oid
INNER JOIN
pg_class pkr ON pkr.oid = pkrd.childoid
)
JOIN
pg_namespace pkn ON pkn.oid = pkr.relnamespace
)
JOIN
pg_attribute pka ON pka.attrelid = c.confrelid AND pka.attnum = ANY (c.confkey)
)
WHERE
c.contype = 'f'::"char" AND
fkn.nspname = ANY( current_schemas(false) ) AND
pkn.nspname = ANY( current_schemas(false) )
)
SELECT * FROM "vAttributeReferences" WHERE "isInherited" = false
SQL
);
$relationships = $this->db->query($sql);
foreach ($relationships as $relationship) {
$fk = $this->pgAttributes->findOneByKey($relationship['fk_key']);
$pk = $this->pgAttributes->findOneByKey($relationship['pk_key']);
if (!$fk or !$pk) {
d_pr($relationship);
die;
}
$fk->addReference($pk);
}
// look for normality defined relationships
$profiler = new Profiler(__FUNCTION__);
$profiler->log();
foreach ($this->pgClasses as $relation) {
$tags = $relation->getTags();
if (isset($tags['references'])) {
foreach ($tags['references'] as $reference) {
$reference = array_map('trim', explode('=', $reference));
$reference[1] = explode('.', $reference[1]);
$fk = $relation->getAttributeByName($reference[0]);
// referencing
$pkTable = $this->pgClasses->findOneByName($reference[1][0]);
$pk = $pkTable->getAttributeByName($reference[1][1]);
$fk->addReference($pk);
}
}
}
// echo $profiler->log()->output();
}
/**
* {@inheritDoc}
* @param string $qty
* @param array $filterComponents
* @param int Bitmask fo class constants
* @return Bond\Container
*/
public function findByFilterComponents($qty, array $filterComponents, $source = null)
{
$source = $this->findByFilterComponentsSourceSetup($source);
$output = $this->makeNewContainer();
$profiler = new Profiler(__FUNCTION__);
$profiler->log("setup");
if ($source & self::UNPERSISTED) {
$output->add($this->findByFilterComponentsMultiton($filterComponents, $source));
}
$profiler->log("multiton");
if ($source & self::PERSISTED) {
$cannotMatch = function ($entity) {
return $entity instanceof Base ? $entity->isNew() : false;
};
// If all of the filter components can't match - that is return true - there isn't any point in going to the db
$checkDatabase = !\Bond\array_check(function ($filterComponent) use($cannotMatch) {
return $filterComponent->getCannotMatch($cannotMatch);
}, $filterComponents, false);
if ($checkDatabase) {
$output->add($this->findByFilterComponentsDatabase($filterComponents, $source));
}
}
$profiler->log("database");
return $this->findByFilterComponentsFormatReturnValue($qty, $output);
}
