Show who the user was invited by on user page

3 files changed, 28 insertions, 7 deletions

diff --git a/includes/model/User.php b/includes/model/User.php
index 8e28239..3515fad 100755
--- a/includes/model/User.php
+++ b/includes/model/User.php
@@ -24,6 +24,7 @@ class User
 	public $level = 'user';

 	public $invite_code;

 	public $generation;

+	public $invited_by;

 

 	private $has_value = false;

 

@@ -31,7 +32,7 @@ class User
 	// and PHP does not allow function overloading.

 	public function get_by_id($id)

 	{

-		$sql = "SELECT user_name, user_password, user_date_registered, user_level, user_invite_code, user_generation FROM users WHERE user_id = ?;";

+		$sql = "SELECT user_name, user_password, user_date_registered, user_level, user_invite_code, user_generation, user_invited_by FROM users WHERE user_id = ?;";

 		$result = Database::get()->query($sql, "i", $id);

 

 		if (empty($result)) {

@@ -45,6 +46,7 @@ class User
 		$this->level = $result[0]['user_level'];

 		$this->invite_code = $result[0]['user_invite_code'];

 		$this->generation = $result[0]['user_generation'];

+		$this->invited_by = $result[0]['user_invited_by'];

 

 		$this->has_value = true;

 	}

@@ -52,7 +54,7 @@ class User
 	// TODO: Duplicated code, there should be a common database read function for all models

 	public function get_by_name($name)

 	{

-		$sql = "SELECT user_id, user_password, user_date_registered, user_level, user_invite_code, user_generation FROM users WHERE user_name = ?;";

+		$sql = "SELECT user_id, user_password, user_date_registered, user_level, user_invite_code, user_generation, user_invited_by FROM users WHERE user_name = ?;";

 		$result = Database::get()->query($sql, "s", $name);

 

 		if (empty($result)) {

@@ -66,13 +68,14 @@ class User
 		$this->level = $result[0]['user_level'];

 		$this->invite_code = $result[0]['user_invite_code'];

 		$this->generation = $result[0]['user_generation'];

+		$this->invited_by = $result[0]['user_invited_by'];

 

 		$this->has_value = true;

 	}

 

 	public function get_by_invite_code($invite_code)

 	{

-		$sql = "SELECT user_id, user_name, user_password, user_date_registered, user_level, user_generation FROM users WHERE user_invite_code = ?;";

+		$sql = "SELECT user_id, user_name, user_password, user_date_registered, user_level, user_generation, user_invited_by FROM users WHERE user_invite_code = ?;";

 		$result = Database::get()->query($sql, "s", $invite_code);

 

 		if (empty($result)) {

@@ -86,21 +89,31 @@ class User
 		$this->level = $result[0]['user_level'];

 		$this->invite_code = $invite_code;

 		$this->generation = $result[0]['user_generation'];

+		$this->invited_by = $result[0]['user_invited_by'];

 

 		$this->has_value = true;

 	}

 

+	public function get_inviter(): User

+	{

+		$result = new User();

+		$result->get_by_id($this->invited_by);

+		return $result;

+	}

+

 	public function has_value(): bool

     {

 		return $this->has_value;

 	}

 

-	public static function register(string $username, string $password, int $generation)

+	public static function register(string $username, string $password, User $invited_by)

 	{

-		$sql = "INSERT INTO users(user_name, user_password, user_date_registered, user_invite_code, user_generation) VALUES(?, ?, NOW(), ?, ?);";

+		$sql = "INSERT INTO users(user_name, user_password, user_date_registered, user_invite_code, user_generation, user_invited_by) VALUES(?, ?, NOW(), ?, ?, ?);";

 		$pass_hash = password_hash($password, PASSWORD_DEFAULT);

 		$invite_code = generate_invite_code();

-		Database::get()->query($sql, "sssi", $username, $pass_hash, $invite_code, $generation);

+

+		$generation = $invited_by->generation + 1;

+		Database::get()->query($sql, "sssii", $username, $pass_hash, $invite_code, $generation, $invited_by->id);

 	}

 

 	public function update_invite_code()

diff --git a/meta/setup.sql b/meta/setup.sql
index dff7769..7f7d48d 100644
--- a/meta/setup.sql
+++ b/meta/setup.sql
@@ -6,6 +6,7 @@ CREATE TABLE users (
     user_date_registered DATETIME NOT NULL,
     user_invite_code VARCHAR(8) NOT NULL,
     user_generation INT NOT NULL,
+    user_invited_by INT,
     UNIQUE INDEX user_name_unique (user_name),
     UNIQUE INDEX user_invite_unique (user_invite_code),
 	PRIMARY KEY (user_id)
diff --git a/viewuser.php b/viewuser.php
index 33d8636..19f034c 100755
--- a/viewuser.php
+++ b/viewuser.php
@@ -25,7 +25,14 @@ if (!$current->has_value()) {
 <body>
 <?php include_once "includes/templates/header.php" ?>
 	<h1><?= $current->name; ?></h1>
-    <h4>Generation <?= $current->generation; ?></h4>
+
+    <h4>
+        Generation <?= $current->generation; ?>
+<?php if ($current->invited_by > 0): ?>
+        <br>
+        invited by <a href="viewuser.php?id=<?= $current->invited_by; ?>"><?= $current->get_inviter()->name; ?></a>
+<?php endif ?>
+    </h4>
 	member since <?= date('M d, Y', strtotime($current->date_registered)); ?>
 <?php if (Session::get()->is_signed_in() && Session::get()->get_current_user()->id == $current->id): ?>
     <p>Your invite code is <em><?= $current->invite_code ?></em></p>