more mysql ui fixes (#2349)

CHANGELOG.md

@@ -83,7 +83,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix song playback in playback troubleshooting
 - Fix seeking into extracted text subtitles
 - Fix error when changing default (lowest priority) alternate schedule
-- Fix editing remote libraries with MySql/MariaDB
+- Fix remote library editing, tv shows, artists with MySql/MariaDB
 
 ### Changed
 - Rename some schedule and playout terms for clarity

ErsatzTV/Pages/Artist.razor

@@ -4,6 +4,7 @@
 @using ErsatzTV.Application.MediaCards
 @using ErsatzTV.Application.MediaCollections
 @using ErsatzTV.Application.ProgramSchedules
+@using ErsatzTV.Core.Search
 @using ErsatzTV.Extensions
 @implements IDisposable
 @inject IMediator Mediator
@@ -14,7 +15,7 @@
 
 <MudContainer MaxWidth="MaxWidth.False" Style="padding: 0" Class="fanart-container">
     <div class="fanart-tint"></div>
-    @if (!string.IsNullOrWhiteSpace(_artist.FanArt))
+    @if (!string.IsNullOrWhiteSpace(_artist?.FanArt))
     {
         <img src="@($"artwork/fanart/{_artist.FanArt}")" alt="fan art"/>
     }
@@ -25,7 +26,7 @@
 </MudContainer>
 <MudContainer MaxWidth="MaxWidth.Large" Style="margin-top: 100px" Class="z-10">
     <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Spacing="6">
-        @if (!string.IsNullOrWhiteSpace(_artist.Thumbnail))
+        @if (!string.IsNullOrWhiteSpace(_artist?.Thumbnail))
         {
             <MudImage Elevation="2" Src="@($"artwork/thumbnails/{_artist.Thumbnail}")" Class="rounded-lg z-10" Style="height: 220px; width: 220px; margin-left: auto; margin-right: auto;"/>
         }
@@ -41,11 +42,11 @@
                 <MudHidden Invert="true" Breakpoint="Breakpoint.MdAndUp">
                     <MudText Typo="Typo.h2" Class="media-item-title">@_artist?.Name</MudText>
                 </MudHidden>
-                <MudText Typo="Typo.subtitle1" Class="media-item-subtitle mb-6 mud-text-secondary">@_artist.Disambiguation</MudText>
+                <MudText Typo="Typo.subtitle1" Class="media-item-subtitle mb-6 mud-text-secondary">@_artist?.Disambiguation</MudText>
             </MudStack>
             <MudCard Elevation="2" Class="mb-6">
                 <MudCardContent Class="mx-3 my-3" Style="height: 100%">
-                    @if (!string.IsNullOrWhiteSpace(_artist.Biography))
+                    @if (!string.IsNullOrWhiteSpace(_artist?.Biography))
                     {
                         <MudText Style="flex-grow: 1">
                             @if (_artist.Biography.Length > 400)
@@ -248,11 +249,11 @@
     public int ArtistId { get; set; }
 
     private ArtistViewModel _artist;
-    private List<CultureInfo> _sortedLanguages = new();
-    private List<string> _sortedGenres = new();
-    private List<string> _sortedStyles = new();
-    private List<string> _sortedMoods = new();
-    private MusicVideoCardResultsViewModel _musicVideos;
+    private List<CultureInfo> _sortedLanguages = [];
+    private List<string> _sortedGenres = [];
+    private List<string> _sortedStyles = [];
+    private List<string> _sortedMoods = [];
+    private MusicVideoCardResultsViewModel _musicVideos = new(0, [], new SearchPageMap([]));
 
     public void Dispose()
     {

ErsatzTV/Pages/TelevisionSeasonList.razor

@@ -29,7 +29,7 @@
 </MudContainer>
 <MudContainer MaxWidth="MaxWidth.Large" Style="margin-top: 100px" Class="z-10">
     <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Spacing="6">
-        <MudImage Src="@GetPosterUrl(_show.Poster)" Elevation="2" Class="rounded-lg z-10" Style="max-height: 325px; margin-left: auto; margin-right: auto"/>
+        <MudImage Src="@GetPosterUrl(_show?.Poster)" Elevation="2" Class="rounded-lg z-10" Style="max-height: 325px; margin-left: auto; margin-right: auto"/>
         <MudStack Row="false" Style="flex: 1" Class="z-10">
             <MudStack Row="false">
                 <MudHidden Invert="true" Breakpoint="Breakpoint.SmAndDown">
@@ -285,7 +285,15 @@
         }
     }
 
-    private static string GetPosterUrl(string poster) => poster.StartsWith("http://") || poster.StartsWith("https://") ? poster : $"artwork/posters/{poster}";
+    private static string GetPosterUrl(string poster)
+    {
+        if (string.IsNullOrWhiteSpace(poster))
+        {
+            return poster;
+        }
+
+        return poster.StartsWith("http://") || poster.StartsWith("https://") ? poster : $"artwork/posters/{poster}";
+    }
 
     private async Task ScanShow(bool deepScan)
     {