Can update group logo

RestControllers/GroupsController.php

@@ -136,6 +136,41 @@ class GroupsController {
 		return array("success" => "Group settings have been successfully updated!");
 	}
 
+	/**
+	 * Change (update) the logo of the group
+	 * 
+	 * @url POST /groups/upload_logo
+	 */
+	public function uploadLogo(){
+
+		//Get the ID of the group (with admin access)
+		$groupID = $this->getPostGroupIDWithAdmin("id");
+
+		//Check if it is a valid file
+		if(!check_post_file("logo"))
+			Rest_fatal_error(400, "An error occurred while receiving logo !");
+		
+		//Delete any previous logo
+		if(!components()->groups->deleteLogo($groupID))
+			Rest_fatal_error(500, "An error occurred while trying to delete previous group logo!");
+		
+		//Save the new group logo
+		$file_path = save_post_image("logo", 0, GroupInfo::PATH_GROUPS_LOGO, 500, 500);
+
+		//Update the settings of the group
+		$settings = components()->groups->get_settings($groupID);
+		$settings->set_logo($file_path);
+		
+		if(!components()->groups->set_settings($settings))
+			Rest_fatal_error(500, "Could not save information about new group logo!");
+		
+		//Success
+		return array(
+			"success" => "The new group logo has been successfully saved !",
+			"url" => $settings->get_logo_url()
+		);
+	}
+
 	/**
 	 * Get and return a group ID specified in the POST request
 	 * in which the current user has admin rigths
@@ -169,7 +204,7 @@ class GroupsController {
 
 		$data["id"] = $info->get_id();
 		$data["name"] = $info->get_name();
-		$data["icon_url"] = $info->get_icon_url();
+		$data["icon_url"] = $info->get_logo_url();
 		$data["number_members"] = $info->get_number_members();
 		$data["membership"] = self::GROUPS_MEMBERSHIP_LEVELS[$info->get_membership_level()];
 

classes/components/GroupsComponent.php

@@ -229,6 +229,34 @@ class GroupsComponent {
             array($id));
     }
 
+    /**
+     * Delete current group logo (if any)
+     * 
+     * @param int $id The ID of the target group
+     * @return bool TRUE if the logo was deleted / FALSE else
+     */
+    public function deleteLogo(int $id) : bool {
+
+        //Get the current settings of the group
+		$settings = $this->get_settings($id);
+
+		//Check if the group has currently an group logo or not
+		if($settings->has_logo()){
+			
+			//Delete the previous logo
+			if(file_exists($settings->get_logo_sys_path()))
+				if(!unlink($settings->get_logo_sys_path()))
+                    return FALSE;
+            
+            //Save new information
+            $settings->set_logo("");
+            return $this->set_settings($settings);
+        }
+        
+        //Success (nothing to be done)
+        return TRUE;
+    }
+
     /**
      * Turn a database entry into a GroupInfo object
      * 
@@ -246,6 +274,9 @@ class GroupsComponent {
         $info->set_number_members($this->countMembers($info->get_id()));
         $info->set_membership_level($this->getMembershipLevel(userID, $info->get_id()));
 
+        if($data["path_logo"] != null && $data["path_logo"] != "")
+            $info->set_logo($data["path_logo"]);
+
         return $info;
 
     }
@@ -298,7 +329,11 @@ class GroupsComponent {
     private function GroupSettingsToDB(GroupSettings $settings) : array {
         $data = array();
 
-        $data["name"] = $settings->get_name();
+        if($settings->has_name())
+            $data["name"] = $settings->get_name();
+
+        if($settings->has_logo())
+            $data["path_logo"] = $settings->get_logo();
 
         return $data;
     }

classes/models/GroupInfo.php

@@ -7,13 +7,13 @@
 
 class GroupInfo extends BaseUniqueObject {
 
-	//Path to group icons in user data
-	const PATH_GROUPS_ICON = "groups_icon/";
+	//Path to group logo in user data
+	const PATH_GROUPS_LOGO = "groups_logo";
 
     //Private fields
     private $name;
     private $number_members = -1;
-	private $icon;
+	private $logo;
 	private $membership_level = -1;
     
     
@@ -43,21 +43,32 @@ class GroupInfo extends BaseUniqueObject {
 		return $this->number_members;
 	}
 	
-	//Get and set the URL of the icon of group
-    public function set_icon(string $icon){
-		$this->icon = $icon == "" ? null : $icon;
+	//Get and set the URL of the logo of group
+    public function set_logo(string $logo){
+		$this->logo = $logo == "" ? null : $logo;
 	}
 
-	public function has_icon() : bool {
-		return $this->icon != null;
+	public function has_logo() : bool {
+		return $this->logo != null;
 	}
 
-	public function get_icon() : string {
-		return $this->icon != null ? $this->icon : self::PATH_GROUPS_ICON."default.png";
+	public function get_logo() : string {
+		return $this->logo != null ? $this->logo : self::PATH_GROUPS_LOGO."/default.png";
 	}
 	
-	public function get_icon_url() : string {
-		return path_user_data($this->get_icon());
+	public function get_logo_url() : string {
+		return path_user_data($this->get_logo());
+	}
+
+	public function get_logo_sys_path() : string {
+
+		//For security reasons, this method is available 
+		//only if the user has really a logo (avoid unattended
+		//operation on default logo)
+		if(!$this->has_logo())
+			throw new Exception("This GroupInfo object has not any logo set!");
+
+		return path_user_data($this->get_logo(), true);
 	}
 	
 	//Get and set the membership level of the current user