Some more importers.

app/Helpers/Csv/Converter/CurrencyId.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace FireflyIII\Helpers\Csv\Converter;
+
+use FireflyIII\Models\TransactionCurrency;
+
+/**
+ * Class CurrencyId
+ *
+ * @package FireflyIII\Helpers\Csv\Converter
+ */
+class CurrencyId extends BasicConverter implements ConverterInterface
+{
+
+    /**
+     * @return mixed|static
+     */
+    public function convert()
+    {
+        if (isset($this->mapped[$this->index][$this->value])) {
+            $currency = TransactionCurrency::find($this->mapped[$this->index][$this->value]);
+        } else {
+            $currency = TransactionCurrency::find($this->value);
+        }
+
+        return $currency;
+    }
+}