Add membership information when getting group information

src/helpers/GroupsHelper.ts

@@ -1,6 +1,6 @@
 import { DatabaseHelper } from "./DatabaseHelper";
 import { GroupsAccessLevel, GroupVisibilityLevel, GroupInfo } from "../entities/Group";
-import { GroupMembershipLevels } from "../entities/GroupMember";
+import { GroupMembershipLevels, GroupMember } from "../entities/GroupMember";
 
 /**
  * Groups helper
@@ -148,6 +148,29 @@ export class GroupsHelper {
 		return GroupsAccessLevel.NO_ACCESS;
 	}
 
+	/**
+	 * Get a user membership information
+	 * 
+	 * @param groupID Target group ID
+	 * @param userID Target user ID
+	 * @returns Membership info / null if none found
+	 */
+	public static async GetMembershipInfo(groupID: number, userID: number): Promise<GroupMember> {
+		const data = await DatabaseHelper.QueryRow({
+			table: GROUPS_MEMBERS_TABLE,
+			where: {
+				groups_id: groupID,
+				user_id: userID
+			}
+		});
+
+		if(data == null)
+			return null;
+		
+		return this.DbToGroupMember(data);
+	}
+
+
 	/**
 	 * Count the number of members of a group
 	 * 
@@ -182,4 +205,21 @@ export class GroupsHelper {
 			virtualDirectory: (row.virtual_directory != null && row.virtual_directory && row.virtual_directory != "null" ? row.virtual_directory : undefined)
 		});
 	}
+
+	/**
+	 * Turn a database entry into a group membership information object
+	 * 
+	 * @param row Database entry
+	 * @returns Generated object
+	 */
+	private static async DbToGroupMember(row: any) : Promise<GroupMember> {
+		return new GroupMember({
+			id: row.id,
+			groupID: row.groups_id,
+			userID: row.user_id,
+			timeCreate: row.time_create,
+			level: row.level,
+			following: row.following == 1
+		});
+	}
 }