Notifications

core/Api/Notifications/Create.class.php

@@ -0,0 +1,135 @@
+<?php
+
+namespace Api\Notifications;
+
+use \Api\Request;
+use \Api\Parameter\Parameter;
+use \Api\Parameter\StringType;
+use \Driver\SQL\Condition\Compare;
+
+class Create extends Request {
+
+  public function __construct($user, $externCall = false) {
+    parent::__construct($user, $externCall, array(
+      'groupId' => new Parameter('groupId', Parameter::TYPE_INT, true),
+      'userId' => new Parameter('userId', Parameter::TYPE_INT, true),
+      'title' =>  new StringType('title', 32),
+      'message' =>  new StringType('message', 256),
+    ));
+    $this->isPublic = false;
+  }
+
+  private function checkUser($userId) {
+    $sql = $this->user->getSQL();
+    $res = $sql->select($sql->count())
+      ->from("User")
+      ->where(new Compare("uid", $userId))
+      ->execute();
+
+      $this->success = ($res !== FALSE);
+      $this->lastError = $sql->getLastError();
+
+    if ($this->success) {
+      if ($res[0]["count"] == 0) {
+        $this->success = false;
+        $this->lastError = "User not found";
+      }
+    }
+
+    return $this->success;
+  }
+
+  private function insertUserNotification($userId, $notificationId) {
+    $sql = $this->user->getSQL();
+    $res = $sql->insert("UserNotification", array("user_id", "notification_id"))
+      ->addRow($userId, $notificationId)
+      ->execute();
+
+    $this->success = ($res !== FALSE);
+    $this->lastError = $sql->getLastError();
+    return $this->success;
+  }
+
+  private function checkGroup($groupId) {
+    $sql = $this->user->getSQL();
+    $res = $sql->select($sql->count())
+      ->from("Group")
+      ->where(new Compare("uid", $groupId))
+      ->execute();
+
+    $this->success = ($res !== FALSE);
+    $this->lastError = $sql->getLastError();
+
+    if ($this->success) {
+      if ($res[0]["count"] == 0) {
+        $this->success = false;
+        $this->lastError = "Group not found";
+      }
+    }
+
+    return $this->success;
+  }
+
+  private function insertGroupNotification($groupId, $notificationId) {
+    $sql = $this->user->getSQL();
+    $res = $sql->insert("GroupNotification", array("group_id", "notification_id"))
+      ->addRow($groupId, $notificationId)
+      ->execute();
+
+    $this->success = ($res !== FALSE);
+    $this->lastError = $sql->getLastError();
+    return $this->success;
+  }
+
+  private function createNotification($title, $message) {
+    $sql = $this->user->getSQL();
+    $res = $sql->insert("Notification", array("title", "message"))
+      ->addRow($title, $message)
+      ->returning("uid")
+      ->execute();
+
+    $this->success = ($res !== FALSE);
+    $this->lastError = $sql->getLastError();
+
+    if ($this->success) {
+      return $sql->getLastInsertId();
+    }
+
+    return $this->success;
+  }
+
+  public function execute($values = array()) {
+    if(!parent::execute($values)) {
+      return false;
+    }
+
+    $userId = $this->getParam("userId");
+    $groupId = $this->getParam("groupId");
+    $title = $this->getParam("title");
+    $message = $this->getParam("message");
+
+    if (is_null($userId) && is_null($groupId)) {
+      return $this->createError("Either userId or groupId must be specified.");
+    } else if(!is_null($userId) && !is_null($groupId)) {
+      return $this->createError("Only one of userId and groupId must be specified.");
+    } else if(!is_null($userId)) {
+      if ($this->checkUser($userId)) {
+        $id = $this->createNotification($title, $message);
+        if ($this->success) {
+          return $this->insertUserNotification($userId, $id);
+        }
+      }
+    } else if(!is_null($groupId)) {
+      if ($this->checkGroup($groupId)) {
+        $id = $this->createNotification($title, $message);
+        if ($this->success) {
+          return $this->insertGroupNotification($groupId, $id);
+        }
+      }
+    }
+
+    return $this->success;
+  }
+};
+
+?>

core/Api/Notifications/Fetch.class.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace Api\Notifications;
+
+use \Api\Request;
+use \Driver\SQL\Condition\Compare;
+
+class Fetch extends Request {
+
+  private $notifications;
+
+  public function __construct($user, $externCall = false) {
+    parent::__construct($user, $externCall, array());
+    $this->loginRequired = true;
+  }
+
+  private function fetchUserNotifications() {
+    $userId = $this->user->getId();
+    $sql = $this->user->getSQL();
+    $res = $sql->select($sql->distinct("Notification.uid"), "created_at", "title", "message")
+      ->from("Notification")
+      ->innerJoin("UserNotification", "UserNotification.notification_id", "Notification.uid")
+      ->where(new Compare("UserNotification.user_id", $userId))
+      ->where(new Compare("UserNotification.seen", false))
+      ->execute();
+
+    $this->success = ($res !== FALSE);
+    $this->lastError = $sql->getLastError();
+
+    if ($this->success) {
+      foreach($res as $row) {
+        $id = $row["uid"];
+        if (!isset($this->notifications[$id])) {
+          $this->notifications[$id] = array(
+            "uid" => $id,
+            "title" => $row["title"],
+            "message" => $row["message"],
+            "created_at" => $row["created_at"],
+          );
+        }
+      }
+    }
+
+    return $this->success;
+  }
+
+  private function fetchGroupNotifications() {
+    $userId = $this->user->getId();
+    $sql = $this->user->getSQL();
+    $res = $sql->select($sql->distinct("Notification.uid"), "created_at", "title", "message")
+      ->from("Notification")
+      ->innerJoin("GroupNotification", "GroupNotification.notification_id", "Notification.uid")
+      ->innerJoin("UserGroup", "GroupNotification.group_id", "UserGroup.group_id")
+      ->where(new Compare("UserGroup.user_id", $userId))
+      ->where(new Compare("GroupNotification.seen", false))
+      ->execute();
+
+    $this->success = ($res !== FALSE);
+    $this->lastError = $sql->getLastError();
+
+    if ($this->success) {
+      foreach($res as $row) {
+        $id = $row["uid"];
+        if (!isset($this->notifications[$id])) {
+          $this->notifications[$id] = array(
+            "uid" => $id,
+            "title" => $row["title"],
+            "message" => $row["message"],
+            "created_at" => $row["created_at"],
+          );
+        }
+      }
+    }
+
+    return $this->success;
+  }
+
+  public function execute($values = array()) {
+    if(!parent::execute($values)) {
+      return false;
+    }
+
+    $this->notifications = array();
+    if ($this->fetchUserNotifications() && $this->fetchGroupNotifications()) {
+      $this->result["notifications"] = $this->notifications;
+    }
+
+    return $this->success;
+  }
+};
+
+?>