fix metadata scan error

mcmonkey4eva · mcmonkey4eva · commit 956e26de95df · 2025-04-29T22:26:22.000-07:00
for #747
diff --git a/src/WebAPI/ModelsAPI.cs b/src/WebAPI/ModelsAPI.cs
@@ -501,8 +501,11 @@ public static async Task<JObject> EditModelMetadata(Session session,
             if (!string.IsNullOrWhiteSpace(preview_image))
             {
                 Image img = Image.FromDataString(preview_image).ToMetadataJpg(preview_image_metadata);
-                actualModel.PreviewImage = img.AsDataString();
-                actualModel.Metadata.PreviewImage = actualModel.PreviewImage;
+                if (img is not null)
+                {
+                    actualModel.PreviewImage = img.AsDataString();
+                    actualModel.Metadata.PreviewImage = actualModel.PreviewImage;
+                }
             }
             actualModel.Metadata.Author = author;
             actualModel.Metadata.UsageHint = usage_hint;

Original file line number	Diff line number	Diff line change
`@@ -501,8 +501,11 @@ public static async Task<JObject> EditModelMetadata(Session session,`
`501`	`501`	`if (!string.IsNullOrWhiteSpace(preview_image))`
`502`	`502`	`{`
`503`	`503`	`Image img = Image.FromDataString(preview_image).ToMetadataJpg(preview_image_metadata);`
`504`		`- actualModel.PreviewImage = img.AsDataString();`
`505`		`- actualModel.Metadata.PreviewImage = actualModel.PreviewImage;`
	`504`	`+ if (img is not null)`
	`505`	`+ {`
	`506`	`+ actualModel.PreviewImage = img.AsDataString();`
	`507`	`+ actualModel.Metadata.PreviewImage = actualModel.PreviewImage;`
	`508`	`+ }`
`506`	`509`	`}`
`507`	`510`	`actualModel.Metadata.Author = author;`
`508`	`511`	`actualModel.Metadata.UsageHint = usage_hint;`