20170824.search.01.saved.php
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	<?php

	// Before T12956, normal users could reorder (and disable) builtin queries.
	// After that change, there is a single global order which can only be
	// changed by administrators.

	// This migration removes the rows which store individual reordering and
	// disabling of queries. If a user had reordered queries in such a way that
	// a builtin query was at the top of the list, we try to write a preference
	// which pins that query as their default to minimize disruption.

	$table = new PhabricatorNamedQuery();
	$conn = $table->establishConnection('w');

	$config_table = new PhabricatorNamedQueryConfig();

	foreach (new LiskMigrationIterator($table) as $named_query) {

	// If this isn't a builtin query, it isn't changing. Leave it alone.
	if (!$named_query->getIsBuiltin()) {
	continue;
	}

	// If the user reordered things but left a builtin query at the top, pin
	// the query before we remove the row.
	if ($named_query->getSequence() == 1) {
	queryfx(
	$conn,
	'INSERT IGNORE INTO %T
	(engineClassName, scopePHID, properties, dateCreated, dateModified)
	VALUES
	(%s, %s, %s, %d, %d)',
	$config_table->getTableName(),
	$named_query->getEngineClassName(),
	$named_query->getUserPHID(),
	phutil_json_encode(
	array(
	PhabricatorNamedQueryConfig::PROPERTY_PINNED =>
	$named_query->getQueryKey(),
	)),
	PhabricatorTime::getNow(),
	PhabricatorTime::getNow());
	}

	$named_query->delete();
	}