v0.1.0

provm/common/Service/Database/DSN.php

@@ -0,0 +1,25 @@
+<?php
+namespace ProVM\Common\Service\Database;
+
+class DSN {
+  public $engine;
+  public function __construct(string $engine) {
+    $this->engine = $engine;
+  }
+  public $pairs;
+  public function addPair($name, $value) {
+    if ($this->pairs === null) {
+      $this->pairs = [];
+    }
+    $this->pairs []= [$name, $value];
+    return $this;
+  }
+  public function __toString() {
+    return implode(':', [
+      $this->engine,
+      implode(';', array_map(function($item) {
+        return implode('=', $item);
+      }, $this->pairs))
+    ]);
+  }
+}

provm/common/Service/Database/MySQL.php

@@ -0,0 +1,21 @@
+<?php
+namespace ProVM\Common\Service\Database;
+
+class MySQL {
+  protected $settings;
+  public function __construct($settings) {
+    $this->settings = $settings;
+  }
+  public function dsn(): string {
+    $dsn = (new DSN($this->settings->engine))
+      ->addPair('host', $this->settings->host->name);
+    if (isset($this->settings->host->port)) {
+      $dsn->addPair('port', $this->settings->host->port);
+    }
+    $dsn->addPair('dbname', $this->settings->name);
+    return '' . $dsn;
+  }
+  public function hasUser(): bool {
+    return true;
+  }
+}