Create Model\Register

- Add Model\User::exists method

src/Model/Register.php

@@ -0,0 +1,131 @@
+<?php
+
+/**
+ * @file src/Model/Register.php
+ */
+namespace Friendica\Model;
+
+use Friendica\Database\DBA;
+use Friendica\Util\DateTimeFormat;
+
+/**
+ * Class interacting with the register database table
+ *
+ * @author Hypolite Petovan <mrpetovan@gmail.com>
+ */
+class Register
+{
+	/**
+	 * Return the list of pending registrations
+	 *
+	 * @return array
+	 */
+	public static function getPending()
+	{
+		$stmt = DBA::p(
+			"SELECT `register`.*, `contact`.`name`, `user`.`email`
+			FROM `register`
+			INNER JOIN `contact` ON `register`.`uid` = `contact`.`uid`
+			INNER JOIN `user` ON `register`.`uid` = `user`.`uid`"
+		);
+
+		return DBA::toArray($stmt);
+	}
+
+	/**
+	 * Returns the pending registration count
+	 *
+	 * @return int
+	 */
+	public static function getPendingCount()
+	{
+		$register = DBA::fetchFirst(
+			"SELECT COUNT(*) AS `count`
+			FROM `register`
+			INNER JOIN `contact` ON `register`.`uid` = `contact`.`uid` AND `contact`.`self`"
+		);
+
+		return $register['count'];
+	}
+
+	/**
+	 * Returns the register record associated with the provided hash
+	 *
+	 * @param  string $hash
+	 * @return array
+	 */
+	public static function getByHash($hash)
+	{
+		return DBA::selectFirst('register', [], ['hash' => $hash]);
+	}
+
+	/**
+	 * Returns true if a register record exists with the provided hash
+	 *
+	 * @param  string  $hash
+	 * @return boolean
+	 */
+	public static function existsByHash($hash)
+	{
+		return DBA::exists('register', ['hash' => $hash]);
+	}
+
+	/**
+	 * Creates a register record for an invitation and returns the auto-generated code for it
+	 *
+	 * @return string
+	 */
+	public static function createForInvitation()
+	{
+		$code = autoname(8) . srand(1000, 9999);
+
+		$fields = [
+			'hash' => $code,
+			'created' => DateTimeFormat::utcNow()
+		];
+
+		DBA::insert('register', $fields);
+
+		return $code;
+	}
+
+	/**
+	 * Creates a register record for approval and returns the success of the database insert
+	 * Checks for the existence of the provided user id
+	 *
+	 * @param  integer $uid      The ID of the user needing approval
+	 * @param  string  $language The registration language
+	 * @param  string  $note     An additional message from the user
+	 * @return boolean
+	 */
+	public static function createForApproval($uid, $language, $note = '')
+	{
+		$hash = random_string();
+
+		if (!User::exists($uid)) {
+			return false;
+		}
+
+		$fields = [
+			'hash'     => $hash,
+			'created'  => DateTimeFormat::utcNow(),
+			'uid'      => $uid,
+			'password' => '', // Obsolete, slated for deletion
+			'language' => $language,
+			'note'     => $note
+		];
+
+		return DBA::insert('register', $fields);
+	}
+
+	/**
+	 * Deletes a register record by the provided hash and returns the success of the database deletion
+	 *
+	 * @param  string  $hash
+	 * @return boolean
+	 */
+	public static function deleteByHash($hash)
+	{
+		return DBA::delete('register', ['hash' => $hash]);
+	}
+}

src/Model/User.php

@@ -31,6 +31,17 @@ require_once 'include/text.php';
  */
 class User
 {
+	/**
+	 * Returns true if a user record exists with the provided id
+	 *
+	 * @param  integer $uid
+	 * @return boolean
+	 */
+	public static function exists($uid)
+	{
+		return DBA::exists('user', ['uid' => $uid]);
+	}
+
 	/**
 	 * @brief Returns the user id of a given profile url
 	 *