Added autocomplete for part parameters

src/Repository/ParameterRepository.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Repository;
+
+class ParameterRepository extends DBElementRepository
+{
+    /**
+     * Find parameters using a parameter name
+     * @param  string  $name The name to search for
+     * @param  bool  $exact True, if only exact names should match. False, if the name just needs to be contained in the parameter name
+     * @param  int  $max_results
+     * @return array
+     */
+    public function autocompleteParamName(string $name, bool $exact = false, int $max_results = 50): array
+    {
+        $qb = $this->createQueryBuilder('parameter');
+
+        $qb->distinct()
+            ->select('parameter.name')
+            ->addSelect('parameter.symbol')
+            ->addSelect('parameter.unit')
+            ->where('parameter.name LIKE :name');
+        if ($exact) {
+            $qb->setParameter('name', $name);
+        } else {
+            $qb->setParameter('name', '%'.$name.'%');
+        }
+
+        $qb->setMaxResults($max_results);
+
+        return $qb->getQuery()->getArrayResult();
+    }
+}