exports: fix activity DateAggregator; add customs DQL Date/Time functions

src/Bundle/ChillMainBundle/Doctrine/DQL/ToChar.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Chill\MainBundle\Doctrine\DQL;
+
+use Doctrine\ORM\Query\AST\Functions\FunctionNode;
+use Doctrine\ORM\Query\Lexer;
+use Doctrine\ORM\Query\Parser;
+use Doctrine\ORM\Query\SqlWalker;
+
+/**
+ * Usage : TO_CHAR(datetime, fmt)
+ */
+class ToChar extends FunctionNode
+{
+    private $datetime;
+
+    private $fmt;
+
+    public function getSql(SqlWalker $sqlWalker)
+    {
+        return sprintf(
+            'TO_CHAR(%s, %s)',
+            $sqlWalker->walkArithmeticPrimary($this->datetime),
+            $sqlWalker->walkArithmeticPrimary($this->fmt)
+        );
+    }
+
+    public function parse(Parser $parser)
+    {
+        $parser->match(Lexer::T_IDENTIFIER);
+        $parser->match(Lexer::T_OPEN_PARENTHESIS);
+        $this->datetime = $parser->ArithmeticExpression();
+        $parser->match(Lexer::T_COMMA);
+        $this->fmt = $parser->StringExpression();
+        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
+    }
+
+}