diff --git a/MyYearlyCountings/Local.db b/MyYearlyCountings/Local.db
index c59cc3f..67281a7 100644
Binary files a/MyYearlyCountings/Local.db and b/MyYearlyCountings/Local.db differ
diff --git a/MyYearlyCountings/Local.db-shm b/MyYearlyCountings/Local.db-shm
new file mode 100644
index 0000000..fe9ac28
Binary files /dev/null and b/MyYearlyCountings/Local.db-shm differ
diff --git a/MyYearlyCountings/Local.db-wal b/MyYearlyCountings/Local.db-wal
new file mode 100644
index 0000000..e69de29
diff --git a/MyYearlyCountings/Migrations/20230703200419_refIdsInCalItems.Designer.cs b/MyYearlyCountings/Migrations/20230703200419_refIdsInCalItems.Designer.cs
new file mode 100644
index 0000000..2313647
--- /dev/null
+++ b/MyYearlyCountings/Migrations/20230703200419_refIdsInCalItems.Designer.cs
@@ -0,0 +1,188 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using MyYearlyCountings.Data;
+
+#nullable disable
+
+namespace MyYearlyCountings.Migrations
+{
+    [DbContext(typeof(DataContext))]
+    [Migration("20230703200419_refIdsInCalItems")]
+    partial class refIdsInCalItems
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "7.0.5");
+
+            modelBuilder.Entity("MyYearlyCountings.Models.AccountRecord", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Avisering")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<double>("Belopp")
+                        .HasColumnType("REAL");
+
+                    b.Property<DateTime>("BetalDatum")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Konto")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Mottagare")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("AccountRecords");
+                });
+
+            modelBuilder.Entity("MyYearlyCountings.Models.CalDay", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Day")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("DayComment")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("DayName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Month")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("MonthId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Year")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("CalDays");
+                });
+
+            modelBuilder.Entity("MyYearlyCountings.Models.CalHour", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Day")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("DayId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Hour")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("HourComment")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Month")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Year")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("CalHours");
+                });
+
+            modelBuilder.Entity("MyYearlyCountings.Models.CalMonth", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Month")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("MonthComment")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("MonthName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Year")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("YearId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("CalMonths");
+                });
+
+            modelBuilder.Entity("MyYearlyCountings.Models.CalYear", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Year")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("YearComment")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("CalYears");
+                });
+
+            modelBuilder.Entity("MyYearlyCountings.Models.Member", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("LastName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NickName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PersonType")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Members");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/MyYearlyCountings/Migrations/20230703200419_refIdsInCalItems.cs b/MyYearlyCountings/Migrations/20230703200419_refIdsInCalItems.cs
new file mode 100644
index 0000000..b69eabc
--- /dev/null
+++ b/MyYearlyCountings/Migrations/20230703200419_refIdsInCalItems.cs
@@ -0,0 +1,51 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace MyYearlyCountings.Migrations
+{
+    /// <inheritdoc />
+    public partial class refIdsInCalItems : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "YearId",
+                table: "CalMonths",
+                type: "INTEGER",
+                nullable: false,
+                defaultValue: 0);
+
+            migrationBuilder.AddColumn<int>(
+                name: "DayId",
+                table: "CalHours",
+                type: "INTEGER",
+                nullable: false,
+                defaultValue: 0);
+
+            migrationBuilder.AddColumn<int>(
+                name: "MonthId",
+                table: "CalDays",
+                type: "INTEGER",
+                nullable: false,
+                defaultValue: 0);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "YearId",
+                table: "CalMonths");
+
+            migrationBuilder.DropColumn(
+                name: "DayId",
+                table: "CalHours");
+
+            migrationBuilder.DropColumn(
+                name: "MonthId",
+                table: "CalDays");
+        }
+    }
+}
diff --git a/MyYearlyCountings/Migrations/DataContextModelSnapshot.cs b/MyYearlyCountings/Migrations/DataContextModelSnapshot.cs
index 0a5db6b..9e6b18b 100644
--- a/MyYearlyCountings/Migrations/DataContextModelSnapshot.cs
+++ b/MyYearlyCountings/Migrations/DataContextModelSnapshot.cs
@@ -66,6 +66,9 @@ namespace MyYearlyCountings.Migrations
                     b.Property<int>("Month")
                         .HasColumnType("INTEGER");
 
+                    b.Property<int>("MonthId")
+                        .HasColumnType("INTEGER");
+
                     b.Property<int>("Year")
                         .HasColumnType("INTEGER");
 
@@ -83,6 +86,9 @@ namespace MyYearlyCountings.Migrations
                     b.Property<int>("Day")
                         .HasColumnType("INTEGER");
 
+                    b.Property<int>("DayId")
+                        .HasColumnType("INTEGER");
+
                     b.Property<int>("Hour")
                         .HasColumnType("INTEGER");
 
@@ -121,6 +127,9 @@ namespace MyYearlyCountings.Migrations
                     b.Property<int>("Year")
                         .HasColumnType("INTEGER");
 
+                    b.Property<int>("YearId")
+                        .HasColumnType("INTEGER");
+
                     b.HasKey("Id");
 
                     b.ToTable("CalMonths");
diff --git a/MyYearlyCountings/Models/CalDay.cs b/MyYearlyCountings/Models/CalDay.cs
index e2b5e7e..540eace 100644
--- a/MyYearlyCountings/Models/CalDay.cs
+++ b/MyYearlyCountings/Models/CalDay.cs
@@ -4,15 +4,15 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace MyYearlyCountings.Models
+namespace MyYearlyCountings.Models;
+
+public class CalDay
 {
-    public class CalDay
-    {
-        public int Id { get; set; }
-        public int Year { get; set; }
-        public int Month { get; set; }
-        public int Day { get; set; }
-        public string DayName { get; set; } = string.Empty; 
-        public string DayComment { get; set; } = string.Empty;
-    }
+    public int Id { get; set; }
+    public int MonthId { get; set; }
+    public int Year { get; set; }
+    public int Month { get; set; }
+    public int Day { get; set; }
+    public string DayName { get; set; } = string.Empty; 
+    public string DayComment { get; set; } = string.Empty;
 }
diff --git a/MyYearlyCountings/Models/CalHour.cs b/MyYearlyCountings/Models/CalHour.cs
index 9688486..52e837a 100644
--- a/MyYearlyCountings/Models/CalHour.cs
+++ b/MyYearlyCountings/Models/CalHour.cs
@@ -9,6 +9,7 @@ namespace MyYearlyCountings.Models
     public class CalHour
     {
         public int Id { get; set; }
+        public int DayId { get; set; }
         public int Year { get; set; }
         public int Month { get; set; }
         public int Day { get; set; }
diff --git a/MyYearlyCountings/Models/CalMonth.cs b/MyYearlyCountings/Models/CalMonth.cs
index ce9f617..d421918 100644
--- a/MyYearlyCountings/Models/CalMonth.cs
+++ b/MyYearlyCountings/Models/CalMonth.cs
@@ -9,6 +9,7 @@ namespace MyYearlyCountings.Models
     public class CalMonth
     {
         public int Id { get; set; }
+        public int YearId { get; set; }
         public int Year { get; set; }
         public int Month { get; set; }
         public string MonthName { get; set; } = string.Empty;
diff --git a/MyYearlyCountings/MyYearlyCountings.csproj b/MyYearlyCountings/MyYearlyCountings.csproj
index 8af53a9..db599de 100644
--- a/MyYearlyCountings/MyYearlyCountings.csproj
+++ b/MyYearlyCountings/MyYearlyCountings.csproj
@@ -36,7 +36,7 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
     <None Update="Local.db">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
   </ItemGroup>
 
diff --git a/MyYearlyCountings/Program.cs b/MyYearlyCountings/Program.cs
index a8320b0..e9f956f 100644
--- a/MyYearlyCountings/Program.cs
+++ b/MyYearlyCountings/Program.cs
@@ -33,6 +33,7 @@ static IHostBuilder CreateHostBuilder(string[] args)
             services.AddScoped<ISampleRepository, SampleRepository>();
             services.AddScoped<IMemberRepository, MemberRepository>();
             services.AddScoped<IAccountRecordRepository, AccountRecordRepository>();
+            services.AddScoped<ICalenderRepository, CalenderRepository>();
             services.AddScoped<IReadingIn, ReadingIn>();
             services.AddDbContext<DataContext>();
 
diff --git a/MyYearlyCountings/Repositories/CalenderRepository.cs b/MyYearlyCountings/Repositories/CalenderRepository.cs
new file mode 100644
index 0000000..2c04aa5
--- /dev/null
+++ b/MyYearlyCountings/Repositories/CalenderRepository.cs
@@ -0,0 +1,143 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+using MyYearlyCountings.Data;
+using MyYearlyCountings.Models;
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MyYearlyCountings.Repositories;
+
+public class CalenderRepository : ICalenderRepository
+{
+    private readonly IConfiguration _configuration;
+    private readonly ILogger<CalenderRepository> _logger;
+    private readonly DataContext _dataContext;
+
+    public CalenderRepository(IConfiguration configuration, ILogger<CalenderRepository> logger, DataContext dataContext)
+    {
+        _configuration = configuration;
+        _logger = logger;
+        _dataContext = dataContext;
+    }
+
+    public bool AddYear(int year, string comment)
+    {
+        var result = false;
+        var exists = _dataContext.CalYears.Select(x => x.Year == year);
+        if (exists == null)
+        {
+            var yearRec = new CalYear() { Year = year, YearComment = comment };
+            var insres = _dataContext.CalYears.Add(yearRec);
+            _dataContext.SaveChanges();
+            result = true;
+        }
+        return result;
+    }
+
+
+
+    public bool AddMonth(
+        int year,
+        int month,
+        string monthName,
+        string comment
+        )
+    {
+        var result = false;
+
+        var calyear = GetYear(year);
+        if (calyear == null)
+        {
+            _logger.LogError($"Årspost för år {year} saknas!");
+            return false;
+        }
+
+        var exists = _dataContext.CalMonths.Select(x => x.Year == year && x.Month == month);
+        if (exists == null)
+        {
+            var monthRec = new CalMonth() { Year = year, YearId = calyear.Id, Month = month, MonthName = monthName, MonthComment = comment };
+            var insres = _dataContext.CalMonths.Add(monthRec);
+            _dataContext.SaveChanges();
+            result = true;
+        }
+        return result;
+    }
+
+    public bool AddDay(
+        int year,
+        int month,
+        int day,
+        string dayName,
+        string comment
+        )
+    {
+        var result = false;
+
+        var calmonth = GetMonth(year, month);
+        if (calmonth == null)
+        {
+            _logger.LogError($"Månadspost för år {year}, månad {month} saknas!");
+            return false;
+        }
+
+        var exists = _dataContext.CalDays.Select(x => x.Year == year && x.Day == day && x.Day == day);
+        if (exists == null)
+        {
+            var dayRec = new CalDay() { Year = year, Month = month, MonthId = calmonth.Id, Day = day, DayName = dayName, DayComment = comment };
+            var insres = _dataContext.CalDays.Add(dayRec);
+            _dataContext.SaveChanges();
+            result = true;
+        }
+        return result;
+    }
+
+    public bool AddHour(
+        int year,
+        int month,
+        int day,
+        int hour,
+        string comment
+        )
+    {
+        var result = false;
+
+        var calday = GetDay(year, month, day);
+        if (calday == null)
+        {
+            _logger.LogError($"Dagspost för år {year}, månad {month}, dag {day} saknas!");
+            return false;
+        }
+
+        var exists = _dataContext.CalHours.Select(x => x.Year == year && x.Month == month && x.Day == day && x.Hour == hour);
+        if (exists == null)
+        {
+            var hourRec = new CalHour() { Year = year, Month = month, Day = day, DayId = calday.Id, Hour = hour, HourComment = comment };
+            var insres = _dataContext.CalHours.Add(hourRec);
+            _dataContext.SaveChanges();
+            result = true;
+        }
+        return result;
+    }
+
+
+
+    public CalYear? GetYear(int year)
+    {
+        return _dataContext.CalYears.FirstOrDefault(x => x.Year == year);
+    }
+
+    public CalMonth? GetMonth(int year, int month)
+    {
+        return _dataContext.CalMonths.FirstOrDefault(x => x.Year == year && x.Month == month);
+
+    }
+
+    public CalDay? GetDay(int year, int month, int day)
+    {
+        return _dataContext.CalDays.FirstOrDefault(x => x.Year == year && x.Month == month && x.Day == day);
+    }
+}
diff --git a/MyYearlyCountings/Repositories/ICalenderRepository.cs b/MyYearlyCountings/Repositories/ICalenderRepository.cs
new file mode 100644
index 0000000..3d78717
--- /dev/null
+++ b/MyYearlyCountings/Repositories/ICalenderRepository.cs
@@ -0,0 +1,13 @@
+namespace MyYearlyCountings.Repositories
+{
+    public interface ICalenderRepository
+    {
+        bool AddDay(int year, int month, int day, string dayName, string comment);
+        bool AddHour(int year, int month, int day, int hour, string comment);
+        bool AddMonth(int year, int month, string monthName, string comment);
+        bool AddYear(int year, string comment);
+        CalDay? GetDay(int year, int month, int day);
+        CalMonth? GetMonth(int year, int month);
+        CalYear? GetYear(int year);
+    }
+}
\ No newline at end of file