Fix bug: unable to set currency rate with Postgres

ChangeLog

@@ -15,6 +15,7 @@ Bug fixes:
 
 * Automatic action listeners were using the same instance
 * Fix wrong link for category in task footer
+* Unable to set currency rate with Postgres database
 
 Version 1.0.23
 --------------

app/Model/Currency.php

@@ -42,7 +42,7 @@ class Currency extends Base
         $reference = $this->config->get('application_currency', 'USD');
 
         if ($reference !== $currency) {
-            $rates = $rates === null ? $this->db->hashtable(self::TABLE)->getAll('currency', 'rate') : array();
+            $rates = $rates === null ? $this->db->hashtable(self::TABLE)->getAll('currency', 'rate') : $rates;
             $rate = isset($rates[$currency]) ? $rates[$currency] : 1;
 
             return $rate * $price;
@@ -65,7 +65,7 @@ class Currency extends Base
             return $this->update($currency, $rate);
         }
 
-        return $this->persist(self::TABLE, compact('currency', 'rate'));
+        return $this->db->table(self::TABLE)->insert(array('currency' => $currency, 'rate' => $rate));
     }
 
     /**

app/Validator/CurrencyValidator.php

@@ -25,6 +25,7 @@ class CurrencyValidator extends Base
         $v = new Validator($values, array(
             new Validators\Required('currency', t('Field required')),
             new Validators\Required('rate', t('Field required')),
+            new Validators\Numeric('rate', t('This value must be numeric')),
         ));
 
         return array(

tests/units/Model/CurrencyTest.php

@@ -0,0 +1,46 @@
+<?php
+
+require_once __DIR__.'/../Base.php';
+
+use Kanboard\Model\Currency;
+
+class CurrencyTest extends Base
+{
+    public function testGetAll()
+    {
+        $currencyModel = new Currency($this->container);
+        $currencies = $currencyModel->getAll();
+        $this->assertCount(0, $currencies);
+
+        $this->assertNotFalse($currencyModel->create('USD', 9.9));
+        $currencies = $currencyModel->getAll();
+        $this->assertCount(1, $currencies);
+        $this->assertEquals('USD', $currencies[0]['currency']);
+        $this->assertEquals(9.9, $currencies[0]['rate']);
+    }
+
+    public function testCreate()
+    {
+        $currencyModel = new Currency($this->container);
+        $this->assertNotFalse($currencyModel->create('EUR', 1.2));
+        $this->assertNotFalse($currencyModel->create('EUR', 1.5));
+    }
+
+    public function testUpdate()
+    {
+        $currencyModel = new Currency($this->container);
+        $this->assertNotFalse($currencyModel->create('EUR', 1.1));
+        $this->assertNotFalse($currencyModel->update('EUR', 2.2));
+    }
+
+    public function testGetPrice()
+    {
+        $currencyModel = new Currency($this->container);
+
+        $this->assertEquals(123, $currencyModel->getPrice('USD', 123));
+
+        $this->assertNotFalse($currencyModel->create('EUR', 0.5));
+        $this->assertEquals(50.0, $currencyModel->getPrice('EUR', 100));
+        $this->assertEquals(50.0, $currencyModel->getPrice('EUR', 100)); // test with cached result
+    }
+}

tests/units/Validator/CurrencyValidatorTest.php

@@ -0,0 +1,27 @@
+<?php
+
+require_once __DIR__.'/../Base.php';
+
+use Kanboard\Validator\CurrencyValidator;
+
+class CurrencyValidatorTest extends Base
+{
+    public function testValidation()
+    {
+        $validator = new CurrencyValidator($this->container);
+        $result = $validator->validateCreation(array());
+        $this->assertFalse($result[0]);
+
+        $result = $validator->validateCreation(array('currency' => 'EUR'));
+        $this->assertFalse($result[0]);
+
+        $result = $validator->validateCreation(array('rate' => 1.9));
+        $this->assertFalse($result[0]);
+
+        $result = $validator->validateCreation(array('currency' => 'EUR', 'rate' => 'foobar'));
+        $this->assertFalse($result[0]);
+
+        $result = $validator->validateCreation(array('currency' => 'EUR', 'rate' => 1.25));
+        $this->assertTrue($result[0]);
+    }
+}