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Should fix MySQL 5.7 issues caused by ONLY_FULL_GROUP_BY

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Should fix MySQL 5.7 issues caused by ONLY_FULL_GROUP_BY
This commit is contained in:
Martin Kirilov 2016-08-12 17:24:00 +03:00 committed by Luís Cobucci
parent 668ad4cc29
commit 854ff17ab9
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1 changed files with 32 additions and 9 deletions
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41
lib/Doctrine/ORM/Tools/Pagination/LimitSubqueryOutputWalker.php
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@ -354,33 +354,56 @@ class LimitSubqueryOutputWalker extends SqlWalker
/**
* Generates new SQL for statements with an order by clause
*
* @param array $sqlIdentifier
* @param string $innerSql
* @param string $sql
* @param OrderByClause $orderByClause
* @param array $sqlIdentifier
* @param string $innerSql
* @param string $sql
* @param OrderByClause $orderByClause
*
* @return string
*/
private function preserveSqlOrdering(array $sqlIdentifier, $innerSql, $sql, $orderByClause)
{
private function preserveSqlOrdering(array $sqlIdentifier, $innerSql, $sql, $orderByClause) {
// If the sql statement has an order by clause, we need to wrap it in a new select distinct
// statement
if (! $orderByClause instanceof OrderByClause) {
if (!$orderByClause instanceof OrderByClause) {
return $sql;
}
// Rebuild the order by clause to work in the scope of the new select statement
/* @var array $orderBy an array of rebuilt order by items */
$orderBy = $this->rebuildOrderByClauseForOuterScope($orderByClause);
$orderByFields = str_replace([' DESC', ' ASC'], ['', ''], $orderBy);
$innerSqlIdentifier = [];
foreach ($orderByFields as $k => $v) {
// remove fields that are selected by identifiers,
// if those are ordered by in the query
if (in_array($v, $sqlIdentifier)) {
unset($orderByFields[$k]);
}
}
foreach ($sqlIdentifier as $k => $v) {
$innerSqlIdentifier[$k] = 'dctrn_result_inner.' . $v;
$sqlIdentifier[$k] = 'dctrn_result.' . $v;
}
// add the
foreach ($orderByFields as $k => $v) {
$innerSqlIdentifier[$k] = 'dctrn_result_inner.' . $v;
}
// Build the select distinct statement
$sql = sprintf(
'SELECT DISTINCT %s FROM (%s) dctrn_result ORDER BY %s',
implode(', ', $sqlIdentifier),
'SELECT DISTINCT %s FROM (%s) dctrn_result_inner ORDER BY %s',
implode(', ', $innerSqlIdentifier),
$innerSql,
implode(', ', $orderBy)
);
// now only select distinct identifier
$sql = sprintf('SELECT DISTINCT %s FROM (%s) dctrn_result', implode(', ', $sqlIdentifier), $sql);
return $sql;
}