fix daterange filter for multi-timezone setups (#1321)

src/Doctrine/Query/Sqlite/ConvertTz.php

@@ -0,0 +1,57 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Doctrine\Query\Sqlite;
+
+use Doctrine\ORM\Query\AST\Functions\FunctionNode;
+use Doctrine\ORM\Query\Lexer;
+use Doctrine\ORM\Query\Parser;
+use Doctrine\ORM\Query\SqlWalker;
+
+/**
+ * This is just a fake, as SQLITE does not support this by now.
+ */
+class ConvertTz extends FunctionNode
+{
+    protected $dateExpression;
+
+    protected $fromTz;
+
+    protected $toTz;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getSql(SqlWalker $sqlWalker)
+    {
+        $fieldName = $sqlWalker->walkArithmeticExpression($this->dateExpression);
+        $fromTz = $sqlWalker->walkStringPrimary($this->fromTz);
+        $toTz = $sqlWalker->walkStringPrimary($this->toTz);
+
+        return sprintf('%s', $fieldName);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parse(Parser $parser)
+    {
+        $parser->match(Lexer::T_IDENTIFIER);
+        $parser->match(Lexer::T_OPEN_PARENTHESIS);
+
+        $this->dateExpression = $parser->ArithmeticExpression();
+        $parser->match(Lexer::T_COMMA);
+
+        $this->fromTz = $parser->StringPrimary();
+        $parser->match(Lexer::T_COMMA);
+
+        $this->toTz = $parser->StringPrimary();
+        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
+    }
+}