Fixed: Next/previous/last air dates with Postgres DB

Closes #6790

src/NzbDrone.Core/SeriesStats/SeasonStatistics.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Core.Datastore;
@@ -28,7 +29,7 @@ namespace NzbDrone.Core.SeriesStats
 
                 try
                 {
-                    if (!DateTime.TryParse(NextAiringString, out nextAiring))
+                    if (!DateTime.TryParse(NextAiringString, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AssumeUniversal, out nextAiring))
                     {
                         return null;
                     }
@@ -51,7 +52,7 @@ namespace NzbDrone.Core.SeriesStats
 
                 try
                 {
-                    if (!DateTime.TryParse(PreviousAiringString, out previousAiring))
+                    if (!DateTime.TryParse(PreviousAiringString, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AssumeUniversal, out previousAiring))
                     {
                         return null;
                     }
@@ -74,7 +75,7 @@ namespace NzbDrone.Core.SeriesStats
 
                 try
                 {
-                    if (!DateTime.TryParse(LastAiredString, out lastAired))
+                    if (!DateTime.TryParse(LastAiredString, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AssumeUniversal, out lastAired))
                     {
                         return null;
                     }

src/NzbDrone.Core/SeriesStats/SeriesStatistics.cs

@@ -7,83 +7,14 @@ namespace NzbDrone.Core.SeriesStats
     public class SeriesStatistics : ResultSet
     {
         public int SeriesId { get; set; }
-        public string NextAiringString { get; set; }
+        public DateTime? NextAiring { get; set; }
-        public string PreviousAiringString { get; set; }
+        public DateTime? PreviousAiring { get; set; }
-        public string LastAiredString { get; set; }
+        public DateTime? LastAired { get; set; }
         public int EpisodeFileCount { get; set; }
         public int EpisodeCount { get; set; }
         public int TotalEpisodeCount { get; set; }
         public long SizeOnDisk { get; set; }
         public List<string> ReleaseGroups { get; set; }
         public List<SeasonStatistics> SeasonStatistics { get; set; }
-
-        public DateTime? NextAiring
-        {
-            get
-            {
-                DateTime nextAiring;
-
-                try
-                {
-                    if (!DateTime.TryParse(NextAiringString, out nextAiring))
-                    {
-                        return null;
-                    }
-                }
-                catch (ArgumentOutOfRangeException)
-                {
-                    // GHI 3518: Can throw on mono (6.x?) despite being a Try*
-                    return null;
-                }
-
-                return nextAiring;
-            }
-        }
-
-        public DateTime? PreviousAiring
-        {
-            get
-            {
-                DateTime previousAiring;
-
-                try
-                {
-                    if (!DateTime.TryParse(PreviousAiringString, out previousAiring))
-                    {
-                        return null;
-                    }
-                }
-                catch (ArgumentOutOfRangeException)
-                {
-                    // GHI 3518: Can throw on mono (6.x?) despite being a Try*
-                    return null;
-                }
-
-                return previousAiring;
-            }
-        }
-
-        public DateTime? LastAired
-        {
-            get
-            {
-                DateTime lastAired;
-
-                try
-                {
-                    if (!DateTime.TryParse(LastAiredString, out lastAired))
-                    {
-                        return null;
-                    }
-                }
-                catch (ArgumentOutOfRangeException)
-                {
-                    // GHI 3518: Can throw on mono (6.x?) despite being a Try*
-                    return null;
-                }
-
-                return lastAired;
-            }
-        }
     }
 }

src/NzbDrone.Core/SeriesStats/SeriesStatisticsService.cs

@@ -54,9 +54,9 @@ namespace NzbDrone.Core.SeriesStats
             var previousAiring = seasonStatistics.Where(s => s.PreviousAiring != null).MaxBy(s => s.PreviousAiring);
             var lastAired = seasonStatistics.Where(s => s.SeasonNumber > 0 && s.LastAired != null).MaxBy(s => s.LastAired);
 
-            seriesStatistics.NextAiringString = nextAiring?.NextAiringString;
+            seriesStatistics.NextAiring = nextAiring?.NextAiring;
-            seriesStatistics.PreviousAiringString = previousAiring?.PreviousAiringString;
+            seriesStatistics.PreviousAiring = previousAiring?.PreviousAiring;
-            seriesStatistics.LastAiredString = lastAired?.LastAiredString;
+            seriesStatistics.LastAired = lastAired?.LastAired;
 
             return seriesStatistics;
         }