Some refactoring [skip ci]

app/lib/FireflyIII/Database/CommonDatabaseCallsInterface.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace FireflyIII\Database;
+
+use Illuminate\Support\Collection;
+
+
+/**
+ * Interface CommonDatabaseCalls
+ *
+ * @package FireflyIII\Database
+ */
+interface CommonDatabaseCallsInterface
+{
+    /**
+     * Returns an object with id $id.
+     *
+     * @param int $objectId
+     *
+     * @return \Eloquent
+     */
+    public function find($objectId);
+
+    /**
+     * Finds an account type using one of the "$what"'s: expense, asset, revenue, opening, etc.
+     *
+     * @param $what
+     *
+     * @return \AccountType|null
+     */
+    public function findByWhat($what);
+
+    /**
+     * Returns all objects.
+     *
+     * @return Collection
+     */
+    public function get();
+
+    /**
+     * @param array $objectIds
+     *
+     * @return Collection
+     */
+    public function getByIds(array $objectIds);
+
+}