diff --git a/PadelClub/Data/MonthData.swift b/PadelClub/Data/MonthData.swift
index ab49252..78bed5a 100644
--- a/PadelClub/Data/MonthData.swift
+++ b/PadelClub/Data/MonthData.swift
@@ -10,44 +10,16 @@ import SwiftUI
 import LeStorage
 
 @Observable
-final class MonthData: ModelObject, Storable {
-    
-    static func resourceName() -> String { return "month-data" }
-    static func tokenExemptedMethods() -> [HTTPMethod] { return [] }
-    static func filterByStoreIdentifier() -> Bool { return false }
-    static var relationshipNames: [String] = []
-
-    private(set) var id: String = Store.randomId()
-    private(set) var monthKey: String
-    private(set) var creationDate: Date
-    var maleUnrankedValue: Int? = nil
-    var femaleUnrankedValue: Int? = nil
-    var maleCount: Int? = nil
-    var femaleCount: Int? = nil
-    var anonymousCount: Int? = nil
-    var incompleteMode: Bool = false
-    var dataModelIdentifier: String?
-    var fileModelIdentifier: String?
+final class MonthData: BaseMonthData {
 
     init(monthKey: String) {
+        super.init()
         self.monthKey = monthKey
         self.creationDate = Date()
     }
     
     required init(from decoder: Decoder) throws {
-        let container = try decoder.container(keyedBy: CodingKeys.self)
-        id = try container.decode(String.self, forKey: ._id)
-        monthKey = try container.decode(String.self, forKey: ._monthKey)
-        creationDate = try container.decode(Date.self, forKey: ._creationDate)
-        maleUnrankedValue = try container.decodeIfPresent(Int.self, forKey: ._maleUnrankedValue)
-        femaleUnrankedValue = try container.decodeIfPresent(Int.self, forKey: ._femaleUnrankedValue)
-        maleCount = try container.decodeIfPresent(Int.self, forKey: ._maleCount)
-        femaleCount = try container.decodeIfPresent(Int.self, forKey: ._femaleCount)
-        anonymousCount = try container.decodeIfPresent(Int.self, forKey: ._anonymousCount)
-        incompleteMode = try container.decodeIfPresent(Bool.self, forKey: ._incompleteMode) ?? false
-        dataModelIdentifier = try container.decodeIfPresent(String.self, forKey: ._dataModelIdentifier) ?? nil
-        fileModelIdentifier = try container.decodeIfPresent(String.self, forKey: ._fileModelIdentifier) ?? nil
-
+        try super.init(from: decoder)
     }
     
     func total() -> Int {
@@ -77,33 +49,9 @@ final class MonthData: ModelObject, Storable {
             currentMonthData.femaleUnrankedValue = lastDataSourceFemaleUnranked?.0
             currentMonthData.femaleCount = lastDataSourceFemaleUnranked?.1
             currentMonthData.anonymousCount = anonymousCount
-            do {
-                try DataStore.shared.monthData.addOrUpdate(instance: currentMonthData)
-            } catch {
-                Logger.error(error)
-            }
+            DataStore.shared.monthData.addOrUpdate(instance: currentMonthData)
+            
         }
     }
-
-    override func deleteDependencies() {
-    }
-    
-//    enum CodingKeys: String, CodingKey {
-//        case _id = "id"
-//        case _monthKey = "monthKey"
-//        case _creationDate = "creationDate"
-//        case _maleUnrankedValue = "maleUnrankedValue"
-//        case _femaleUnrankedValue = "femaleUnrankedValue"
-//        case _maleCount = "maleCount"
-//        case _femaleCount = "femaleCount"
-//        case _anonymousCount = "anonymousCount"
-//        case _incompleteMode = "incompleteMode"
-//        case _dataModelIdentifier = "dataModelIdentifier"
-//        case _fileModelIdentifier = "fileModelIdentifier"
-//    }
-    
-    func copy(from other: any Storable) {
-        fatalError("should not happen")
-    }
     
 }