- Added a MssqlRepository

- Adapter some code to allow more flexibility for the new LDAP adapter from ulmus-ldap.
- Insert's fields are now escaped by default.
- A new RelationBuilder was added, a lot of code from the EntityTrait was moved into this. Some code from the Repository class will need to be moved there too.

src/Repository/MssqlRepository.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Ulmus\Repository;
+
+use Ulmus\{ Repository, Query };
+
+class MssqlRepository extends Repository {
+
+    protected function finalizeQuery() : void
+    { 
+        if ( null !== $offset = $this->queryBuilder->getFragment(Query\Offset::class) ) {
+            if ( null === $limit = $this->queryBuilder->getFragment(Query\Limit::class) ) {
+                throw new \Exception("Your offset query fragment is missing a LIMIT value.");
+            }
+
+            # an order by is mandatory for mssql offset/limit
+            if ( null === $order = $this->queryBuilder->getFragment(Query\OrderBy::class) ) {
+                $this->orderBy("(SELECT 0)");
+            }
+
+            $mssqlOffset = new \Ulmus\Query\MsSQL\Offset();
+
+            $mssqlOffset->set($offset->offset, $limit->limit);
+
+            $this->queryBuilder->removeFragment($offset);
+            $this->queryBuilder->removeFragment($limit);
+
+            $this->queryBuilder->push($mssqlOffset);
+        }
+        elseif ( null !== $limit = $this->queryBuilder->getFragment(Query\Limit::class) ) {
+            if ( null !== $select = $this->queryBuilder->getFragment(Query\Select::class) ) {
+                $select->top = $limit->limit;
+            }
+            elseif ( null !== $delete = $this->queryBuilder->getFragment(Query\Delete::class) ) {
+                $delete->top = $limit->limit;
+            }
+
+            $this->queryBuilder->removeFragment($limit);
+        }
+    }
+
+}