Changed reading_time field to prevent null values

app/DoctrineMigrations/Version20171008195606.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Application\Migrations;
+
+use Doctrine\DBAL\Migrations\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+use Symfony\Component\DependencyInjection\ContainerAwareInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Changed reading_time field to prevent null value
+ */
+class Version20171008195606 extends AbstractMigration implements ContainerAwareInterface
+{
+    /**
+     * @var ContainerInterface
+     */
+    private $container;
+
+    public function setContainer(ContainerInterface $container = null)
+    {
+        $this->container = $container;
+    }
+
+    /**
+     * @param Schema $schema
+     */
+    public function up(Schema $schema)
+    {
+        $this->skipIf($this->connection->getDatabasePlatform()->getName() === 'sqlite', 'Migration can only be executed safely on \'mysql\' or \'postgresql\'.');
+
+        switch ($this->connection->getDatabasePlatform()->getName()) {
+            case 'mysql':
+                $this->addSql('ALTER TABLE ' . $this->getTable('entry') . ' CHANGE reading_time reading_time INT(11) NOT NULL;');
+                break;
+            case 'postgresql':
+                $this->addSql('ALTER TABLE ' . $this->getTable('entry') . ' ALTER COLUMN reading_time SET NOT NULL;');
+                break;
+        }
+    }
+
+    /**
+     * @param Schema $schema
+     */
+    public function down(Schema $schema)
+    {
+        $this->skipIf($this->connection->getDatabasePlatform()->getName() === 'sqlite', 'Migration can only be executed safely on \'mysql\' or \'postgresql\'.');
+
+        switch ($this->connection->getDatabasePlatform()->getName()) {
+            case 'mysql':
+                $this->addSql('ALTER TABLE ' . $this->getTable('entry') . ' CHANGE reading_time reading_time INT(11);');
+                break;
+            case 'postgresql':
+                $this->addSql('ALTER TABLE ' . $this->getTable('entry') . ' ALTER COLUMN reading_time DROP NOT NULL;');
+                break;
+        }
+    }
+
+    private function getTable($tableName)
+    {
+        return $this->container->getParameter('database_table_prefix') . $tableName;
+    }
+}

src/Wallabag/CoreBundle/Entity/Entry.php

@@ -180,11 +180,11 @@ class Entry
     /**
      * @var int
      *
-     * @ORM\Column(name="reading_time", type="integer", nullable=true)
+     * @ORM\Column(name="reading_time", type="integer", nullable=false)
      *
      * @Groups({"entries_for_user", "export_all"})
      */
-    private $readingTime;
+    private $readingTime = 0;
 
     /**
      * @var string