close #2174 Fixed: If you enter currency rate 0, it has a broken dashboard.

app/Http/Requests/Banking/Transaction.php

@@ -26,7 +26,7 @@ class Transaction extends FormRequest
             'paid_at' => 'required|date_format:Y-m-d H:i:s',
             'amount' => 'required|amount',
             'currency_code' => 'required|string|currency',
-            'currency_rate' => 'required',
+            'currency_rate' => 'required|gt:0',
             'document_id' => 'nullable|integer',
             'contact_id' => 'nullable|integer',
             'category_id' => 'required|integer',

app/Http/Requests/Document/Document.php

@@ -54,7 +54,7 @@ class Document extends FormRequest
             'items.*.quantity' => 'required',
             'items.*.price' => 'required|amount',
             'currency_code' => 'required|string|currency',
-            'currency_rate' => 'required',
+            'currency_rate' => 'required|gt:0',
             'contact_id' => 'required|integer',
             'contact_name' => 'required|string',
             'category_id' => 'required|integer',

app/Http/Requests/Setting/Currency.php

@@ -26,7 +26,7 @@ class Currency extends FormRequest
         return [
             'name' => 'required|string',
             'code' => 'required|string|unique:currencies,NULL,' . $id . ',id,company_id,' . $company_id . ',deleted_at,NULL',
-            'rate' => 'required',
+            'rate' => 'required|gt:0',
             'enabled' => 'integer|boolean',
             'default_currency' => 'boolean',
             'symbol_first' => 'nullable|boolean',