From 6b52b03523dd88a35ed59ff6e8b84c80ec2d4036 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Sat, 15 Nov 2014 08:38:24 -0500
Subject: [PATCH] Fixes #6049: `yii\db\Connection::getSchema()` for Oracle
 should return false when the table does not exist. Oracle does not support
 `ON UPDATE` clause.

---
 framework/CHANGELOG.md            |  1 +
 framework/db/oci/QueryBuilder.php | 43 +++----------------------------
 2 files changed, 5 insertions(+), 39 deletions(-)

diff --git a/framework/CHANGELOG.md b/framework/CHANGELOG.md
index d5a2f06f86..18c5ab3dbc 100644
--- a/framework/CHANGELOG.md
+++ b/framework/CHANGELOG.md
@@ -26,6 +26,7 @@ Yii Framework 2 Change Log
 - Bug #5925: `ArrayHelper::htmlEncode()` does not work properly when the value being encoded is a nested array (tebazil)
 - Bug #5997: The same message may be exported twice to log targets (klimov-paul)
 - Bug #6018: When setting the `encode` option via `yii\widgets\ActiveRecord::errorOptions`, it works the other way around (stanishevsky, qiangxue)
+- Bug #6049: `yii\db\Connection::getSchema()` for Oracle should return false when the table does not exist. Oracle does not support `ON UPDATE` clause. (wenbin1989) 
 - Bug: Gii console command help information does not contain global options (qiangxue)
 - Bug: `yii\web\UrlRule` was unable to create URLs for rules containing unicode characters (samdark)
 - Enh #4181: Added `yii\bootstrap\Modal::$headerOptions` and `yii\bootstrap\Modal::$footerOptions` (tuxoff, samdark)
diff --git a/framework/db/oci/QueryBuilder.php b/framework/db/oci/QueryBuilder.php
index f48ff496c1..8091b8c820 100644
--- a/framework/db/oci/QueryBuilder.php
+++ b/framework/db/oci/QueryBuilder.php
@@ -9,6 +9,7 @@ namespace yii\db\oci;
 
 use yii\base\InvalidParamException;
 use yii\db\Connection;
+use yii\db\Exception;
 
 /**
  * QueryBuilder is the query builder for Oracle databases.
@@ -152,46 +153,10 @@ EOD;
         if ($delete !== null) {
             $sql .= ' ON DELETE ' . $delete;
         }
+        if ($update !== null) {
+            throw new Exception('Oracle does not support ON UPDATE clause.');
+        }
 
         return $sql;
     }
-
-    /**
-     * @inheritdoc
-     */
-    public function batchInsert($table, $columns, $rows)
-    {
-        $schema = $this->db->getSchema();
-        if (($tableSchema = $schema->getTableSchema($table)) !== null) {
-            $columnSchemas = $tableSchema->columns;
-        } else {
-            $columnSchemas = [];
-        }
-
-        $values = [];
-        foreach ($rows as $row) {
-            $vs = [];
-            foreach ($row as $i => $value) {
-                if (!is_array($value) && isset($columns[$i]) && isset($columnSchemas[$columns[$i]])) {
-                    $value = $columnSchemas[$columns[$i]]->dbTypecast($value);
-                }
-                if (is_string($value)) {
-                    $value = $schema->quoteValue($value);
-                } elseif ($value === false) {
-                    $value = 0;
-                } elseif ($value === null) {
-                    $value = 'NULL';
-                }
-                $vs[] = $value;
-            }
-            $values[] = 'SELECT ' . implode(', ', $vs) . ' FROM DUAL';
-        }
-
-        foreach ($columns as $i => $name) {
-            $columns[$i] = $schema->quoteColumnName($name);
-        }
-
-        return 'INSERT INTO ' . $schema->quoteTableName($table)
-        . ' (' . implode(', ', $columns) . ') ' . implode(' UNION ', $values);
-    }
 }