From c6bf283cd3d42c6ded2c9c5e2f03685ddfec7287 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9D=D0=B8=D0=BA=D0=BE=D0=BB=D0=B0=D0=B9=20=D0=9C=D0=B8?=
 =?UTF-8?q?=D1=82=D1=80=D0=BE=D1=84=D0=B0=D0=BD=D0=BE=D0=B2?=
 <mitrofanovnk@gmail.com>
Date: Thu, 26 Jul 2018 22:28:22 +0300
Subject: [PATCH] change function listTableIndexes

---
 src/ClickHouseSchemaManager.php | 36 +++++++++++++++++++++++++++++++++
 src/ClickHouseStatement.php     |  8 ++++----
 tests/CreateSchemaTest.php      | 32 +++++++++++++++++++++++++++++
 3 files changed, 72 insertions(+), 4 deletions(-)

diff --git a/src/ClickHouseSchemaManager.php b/src/ClickHouseSchemaManager.php
index 69cc2b4..b7e68d1 100644
--- a/src/ClickHouseSchemaManager.php
+++ b/src/ClickHouseSchemaManager.php
@@ -16,12 +16,22 @@
 
 use Doctrine\DBAL\Schema\AbstractSchemaManager;
 use Doctrine\DBAL\Schema\Column;
+use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\View;
 use Doctrine\DBAL\Types\Type;
 use const CASE_LOWER;
 use function array_change_key_case;
+use function array_filter;
+use function array_key_exists;
+use function array_map;
+use function array_reverse;
+use function current;
+use function explode;
+use function is_array;
+use function preg_match;
 use function preg_replace;
 use function stripos;
+use function strpos;
 use function strtolower;
 use function trim;
 
@@ -53,6 +63,32 @@ protected function _getPortableViewDefinition($view)
      */
     public function listTableIndexes($table) : array
     {
+        $tableView = $this->_getPortableViewDefinition(['name' => $table]);
+
+        preg_match(
+            '/MergeTree\(([\w+, \(\)]+)(?= \(((?:[^()]|\((?2)\))+)\),)/mi',
+            $tableView->getSql(),
+            $matches
+        );
+
+        if (is_array($matches) && array_key_exists(2, $matches)) {
+            $indexColumns = array_filter(
+                array_map('trim', explode(',', $matches[2])),
+                function (string $column) {
+                    return strpos($column, '(') === false;
+                }
+            );
+
+            return [
+                new Index(
+                    current(array_reverse(explode('.', $table))) . '__pk',
+                    $indexColumns,
+                    false,
+                    true
+                ),
+            ];
+        }
+
         return [];
     }
 
diff --git a/src/ClickHouseStatement.php b/src/ClickHouseStatement.php
index d9532be..9587257 100644
--- a/src/ClickHouseStatement.php
+++ b/src/ClickHouseStatement.php
@@ -185,7 +185,7 @@ public function fetchAll($fetchMode = null, $fetchArgument = null, $ctorArgs = n
         if ($this->assumeFetchMode($fetchMode) === FetchMode::NUMERIC) {
             return array_map(
                 'array_values',
-                (array) $this->rows
+                $this->rows
             );
         }
 
@@ -194,7 +194,7 @@ public function fetchAll($fetchMode = null, $fetchArgument = null, $ctorArgs = n
                 function ($row) {
                     return array_values($row) + $row;
                 },
-                (array) $this->rows
+                $this->rows
             );
         }
 
@@ -203,7 +203,7 @@ function ($row) {
                 function ($row) {
                     return (object) $row;
                 },
-                (array) $this->rows
+                $this->rows
             );
         }
 
@@ -218,7 +218,7 @@ function ($row) {
 
                     return [array_shift($row) => array_shift($row)];
                 },
-                (array) $this->rows
+                $this->rows
             );
         }
 
diff --git a/tests/CreateSchemaTest.php b/tests/CreateSchemaTest.php
index 3b3ad5e..7866a3d 100644
--- a/tests/CreateSchemaTest.php
+++ b/tests/CreateSchemaTest.php
@@ -12,6 +12,7 @@
 namespace FOD\DBALClickHouse\Tests;
 
 use Doctrine\DBAL\DBALException;
+use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Types\Type;
 use FOD\DBALClickHouse\ClickHouseSchemaManager;
 use FOD\DBALClickHouse\Connection;
@@ -240,6 +241,37 @@ public function testEventDateProviderColumnBadOption()
         $this->connection->exec('DROP TABLE test_table');
     }
 
+    public function testListTableIndexes()
+    {
+        $fromSchema = $this->connection->getSchemaManager()->createSchema();
+        $toSchema = clone $fromSchema;
+
+        $newTable = $toSchema->createTable('test_indexes_table');
+
+        $newTable->addColumn('id', 'integer', ['unsigned' => true]);
+        $newTable->addColumn('payload', 'string');
+        $newTable->addColumn('event_date', Type::DATE);
+        $newTable->addOption('eventDateColumn', 'event_date');
+        $newTable->setPrimaryKey(['id', 'event_date']);
+        $migrationSQLs = $fromSchema->getMigrateToSql($toSchema, $this->connection->getDatabasePlatform());
+        foreach ($migrationSQLs as $sql) {
+            $this->connection->exec($sql);
+        }
+
+        $indexes = $this->connection->getSchemaManager()->listTableIndexes('test_indexes_table');
+
+        $this->assertEquals(1, \count($indexes));
+
+        if($index = current($indexes)) {
+            $this->assertInstanceOf(Index::class, $index);
+
+            $this->assertEquals(['id', 'event_date'], $index->getColumns());
+            $this->assertTrue($index->isPrimary());
+        }
+
+        $this->connection->exec('DROP TABLE test_indexes_table');
+    }
+
     public function testNullableColumns()
     {
         $fromSchema = $this->connection->getSchemaManager()->createSchema();