From 9f52240a5c7387c50473f215c3361066b27eb30d Mon Sep 17 00:00:00 2001
From: Pierre HUBERT <pierre@mail.local>
Date: Tue, 17 Jul 2018 10:19:45 +0200
Subject: [PATCH] Can get and return the number of likes of a group.

---
 RestControllers/GroupsController.php   |  7 +++++++
 classes/components/GroupsComponent.php | 11 +++++++++--
 classes/components/likes.php           |  4 +++-
 classes/models/AdvancedGroupInfo.php   | 24 ++++++++++++++++++++++++
 4 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/RestControllers/GroupsController.php b/RestControllers/GroupsController.php
index 144f360..1fcbc6d 100644
--- a/RestControllers/GroupsController.php
+++ b/RestControllers/GroupsController.php
@@ -116,6 +116,11 @@ class GroupsController {
 		if(!$group->isValid())
 			Rest_fatal_error(404, "The requested group was not found !");
 		
+		//If the user is signed in, check whether he is liking or not the group
+		if(userID > 0)
+			$group->setLiking(components()->likes->is_liking(
+				userID, $group->get_id(), Likes::LIKE_GROUP));
+
 		//Parse and return information about the group
 		return self::AdvancedGroupInfoToAPI($group);
 	}
@@ -649,6 +654,8 @@ class GroupsController {
 		$data["time_create"] = $info->get_time_create();
 		$data["description"] = $info->get_description();
 		$data["url"] = $info->get_url();
+		$data["number_likes"] = $info->get_number_likes();
+		$data["is_liking"] = $info->isLiking();
 
 		return $data;
 	}
diff --git a/classes/components/GroupsComponent.php b/classes/components/GroupsComponent.php
index a01dd5f..1effec0 100644
--- a/classes/components/GroupsComponent.php
+++ b/classes/components/GroupsComponent.php
@@ -169,7 +169,7 @@ class GroupsComponent {
 			return new AdvancedGroupInfo(); //Return invalid object
 		
 		//Create and fill GroupInfo object with database entry
-		return $this->dbToAdvancedGroupInfo($info[0]);
+		return $this->dbToAdvancedGroupInfo($info[0], null, TRUE);
 	}
 
 	/**
@@ -643,9 +643,11 @@ class GroupsComponent {
 	 * @param array $data Database entry
 	 * @param AdvancedGroupInfo $info Optionnal, fill an existing object
 	 * instead of creating a new one
+	 * @param bool $load_likes Specified whether the likes of the group should
+	 * be loaded or not (default: FALSE)
 	 * @return AdvancedGroupInfo Advanced information about the group
 	 */
-	private function dbToAdvancedGroupInfo(array $data, AdvancedGroupInfo $info = null) : AdvancedGroupInfo {
+	private function dbToAdvancedGroupInfo(array $data, AdvancedGroupInfo $info = null, bool $load_likes = FALSE) : AdvancedGroupInfo {
 
 		if($info == null)
 			$info = new AdvancedGroupInfo();
@@ -659,6 +661,11 @@ class GroupsComponent {
 			$info->set_description($data["description"]);
 		if($data["url"] != null && $data["url"] != "" && $data["url"] != "null")
 			$info->set_url($data["url"]);
+		
+		//Load likes information, if required
+		if($load_likes){
+			$info->set_number_likes(components()->likes->count($info->get_id(), Likes::LIKE_GROUP));
+		}
 
 		return $info;
 
diff --git a/classes/components/likes.php b/classes/components/likes.php
index f753b9f..523fa5e 100644
--- a/classes/components/likes.php
+++ b/classes/components/likes.php
@@ -18,6 +18,7 @@ class Likes {
 	const LIKE_USER = "user";
 	const LIKE_POST = "post";
 	const LIKE_COMMENT = "comment";
+	const LIKE_GROUP = "group";
 
 	/**
 	 * Translation of the kinds of like for the database
@@ -25,7 +26,8 @@ class Likes {
 	const KINDS_DB = array(
 		Likes::LIKE_USER => "page",
 		Likes::LIKE_POST => "texte",
-		Likes::LIKE_COMMENT => "commentaire"
+		Likes::LIKE_COMMENT => "commentaire",
+		Likes::LIKE_GROUP => "group"
 	);
 
 	/**
diff --git a/classes/models/AdvancedGroupInfo.php b/classes/models/AdvancedGroupInfo.php
index 4a96a4a..21ccda1 100644
--- a/classes/models/AdvancedGroupInfo.php
+++ b/classes/models/AdvancedGroupInfo.php
@@ -14,6 +14,8 @@ class AdvancedGroupInfo extends GroupInfo {
 	private $time_create = -1;
 	private $url;
 	private $description;
+	private $number_likes = -1;
+	private $is_liking = false;
 
 	//Get and set the creation time of the group
 	public function set_time_create(int $time_create){
@@ -53,4 +55,26 @@ class AdvancedGroupInfo extends GroupInfo {
 	public function get_description() : string {
 		return $this->description != null ? $this->description : "null";
 	}
+
+	//Set and get the number of likes over the group
+	public function set_number_likes(int $number_likes){
+		$this->number_likes = $number_likes;
+	}
+
+	public function has_number_likes() : bool {
+		return $this->number_likes > -1;
+	}
+
+	public function get_number_likes() : int {
+		return $this->number_likes;
+	}
+
+	//Set and get wheter the user is liking the group or not
+	public function setLiking(bool $liking){
+		$this->is_liking = $liking;
+	}
+	
+	public function isLiking() : bool {
+		return $this->is_liking;
+	}
 }
\ No newline at end of file