Merge pull request #12 from caseydwyer/feature-currency-filter

[1.x] Feature: List view filtering for Currency fieldtype

src/Fieldtypes/CurrencyFieldtype.php

@@ -2,6 +2,7 @@
 
 namespace Doefom\CurrencyFieldtype\Fieldtypes;
 
+use Doefom\CurrencyFieldtype\Filters\CurrencyFilter;
 use Doefom\CurrencyFieldtype\Models\Currency;
 use Doefom\CurrencyFieldtype\Utils\Currencies;
 use Illuminate\Support\Facades\App;
@@ -202,9 +203,17 @@ private function getSubUnitFactor(): int
      *
      * @return bool The sub-unit boolean of the currency.
      */
-    private function usesSubUnitStorage(): bool
+    public function usesSubUnitStorage(): bool
     {
         return Arr::get($this->field()->config(), 'store_sub_units', false);
     }
 
+    /**
+     * Sets the custom filter type used in list view filters.
+     * @return CurrencyFilter
+     */
+    public function filter()
+    {
+        return new CurrencyFilter($this);
+    }
 }

src/Filters/CurrencyFilter.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Doefom\CurrencyFieldtype\Filters;
+
+use Statamic\Query\Scopes\Filters\Fields\Number as NumberFilter;
+
+class CurrencyFilter extends NumberFilter
+{
+    protected function valueFieldtype()
+    {
+        return 'currency';
+    }
+
+    public function apply($query, $handle, $values)
+    {
+    	if($this->fieldtype->usesSubUnitStorage()){
+    		$values['value'] *= 100;
+    	}
+
+    	return parent::apply($query, $handle, $values);
+    }
+}