Switch to utf8mb4_bin collation to resolve media import issues.

app/src/Migration/Version20180425050351.php

@@ -0,0 +1,47 @@
+<?php declare(strict_types = 1);
+
+namespace Migration;
+
+use Doctrine\DBAL\Migrations\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+class Version20180425050351 extends AbstractMigration
+{
+    /**
+     * @param Schema $schema
+     */
+    public function up(Schema $schema)
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on \'mysql\'.');
+
+        $this->changeCharset('utf8mb4', 'utf8mb4_bin');
+    }
+
+    /**
+     * @param Schema $schema
+     */
+    public function down(Schema $schema)
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on \'mysql\'.');
+
+        $this->changeCharset('utf8mb4', 'utf8mb4_unicode_ci');
+    }
+
+    protected function changeCharset($charset, $collate)
+    {
+        $this->addSql([
+            'ALTER TABLE `station_media` DROP FOREIGN KEY FK_32AADE3AA0BDB2F3',
+            'ALTER TABLE `song_history` DROP FOREIGN KEY FK_2AD16164A0BDB2F3',
+            'ALTER TABLE `station_media` CONVERT TO CHARACTER SET '.$charset.' COLLATE '.$collate,
+            'ALTER TABLE `song_history` CONVERT TO CHARACTER SET '.$charset.' COLLATE '.$collate,
+            'ALTER TABLE `songs` CONVERT TO CHARACTER SET '.$charset.' COLLATE '.$collate,
+            'ALTER TABLE `song_history` ADD CONSTRAINT FK_2AD16164A0BDB2F3 FOREIGN KEY (song_id) REFERENCES songs (id) ON DELETE CASCADE',
+            'ALTER TABLE `station_media` ADD CONSTRAINT FK_32AADE3AA0BDB2F3 FOREIGN KEY (song_id) REFERENCES songs (id) ON DELETE SET NULL',
+        ]);
+    }
+}