Fixed: Converting TimeSpan from database

Closes #7461
Co-authored-by: Bogdan <mynameisbogdan@users.noreply.github.com>

src/NzbDrone.Core.Test/Datastore/Converters/TimeSpanConverterFixture.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Data.SQLite;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.Datastore.Converters;
+using NzbDrone.Core.Test.Framework;
+
+namespace NzbDrone.Core.Test.Datastore.Converters;
+
+[TestFixture]
+public class TimeSpanConverterFixture : CoreTest<TimeSpanConverter>
+{
+    private SQLiteParameter _param;
+
+    [SetUp]
+    public void Setup()
+    {
+        _param = new SQLiteParameter();
+    }
+
+    [Test]
+    public void should_return_string_when_saving_timespan_to_db()
+    {
+        var span = TimeSpan.FromMilliseconds(10);
+
+        Subject.SetValue(_param, span);
+        _param.Value.Should().Be(span.ToString());
+    }
+
+    [Test]
+    public void should_return_timespan_when_getting_string_from_db()
+    {
+        var span = TimeSpan.FromMilliseconds(10);
+
+        Subject.Parse(span.ToString()).Should().Be(span);
+    }
+
+    [Test]
+    public void should_return_zero_timespan_for_db_null_value_when_getting_from_db()
+    {
+        Subject.Parse(null).Should().Be(TimeSpan.Zero);
+    }
+}

src/NzbDrone.Core/Datastore/Converters/TimeSpanConverter.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Data;
+using Dapper;
+
+namespace NzbDrone.Core.Datastore.Converters;
+
+public class TimeSpanConverter : SqlMapper.TypeHandler<TimeSpan>
+{
+    public override void SetValue(IDbDataParameter parameter, TimeSpan value)
+    {
+        parameter.Value = value.ToString();
+    }
+
+    public override TimeSpan Parse(object value)
+    {
+        return value is string str ? TimeSpan.Parse(str) : TimeSpan.Zero;
+    }
+}

src/NzbDrone.Core/Datastore/TableMapping.cs

@@ -201,6 +201,9 @@ private static void RegisterMappers()
             SqlMapper.RemoveTypeMap(typeof(Guid));
             SqlMapper.RemoveTypeMap(typeof(Guid?));
             SqlMapper.AddTypeHandler(new GuidConverter());
+            SqlMapper.RemoveTypeMap(typeof(TimeSpan));
+            SqlMapper.RemoveTypeMap(typeof(TimeSpan?));
+            SqlMapper.AddTypeHandler(new TimeSpanConverter());
             SqlMapper.AddTypeHandler(new CommandConverter());
             SqlMapper.AddTypeHandler(new SystemVersionConverter());
         }