Set UserValue column to nvarchar(max) (#181)

src/SeoToolkit.Umbraco.MetaFields.Core/Migrations/MetaFieldsMigrationPlan.cs

@@ -10,7 +10,8 @@ public MetaFieldsMigrationPlan()
 
         protected override void DefinePlan()
         {
-            To<MetaFieldsInitialMigration>("state-1");
+            To<MetaFieldsInitialMigration>("state-1")
+                .To<MetaFieldsValueTextMigration>("state-2");
         }
     }
 }

src/SeoToolkit.Umbraco.MetaFields.Core/Migrations/MetaFieldsValueTextMigration.cs

@@ -0,0 +1,16 @@
+using Umbraco.Cms.Infrastructure.Migrations;
+
+namespace SeoToolkit.Umbraco.MetaFields.Core.Migrations
+{
+    public class MetaFieldsValueTextMigration : MigrationBase
+    {
+        public MetaFieldsValueTextMigration(IMigrationContext context) : base(context)
+        {
+        }
+
+        protected override void Migrate()
+        {
+            Database.Execute($"ALTER TABLE SeoToolkitMetaFieldsValue ALTER COLUMN UserValue nvarchar(max);");
+        }
+    }
+}

src/SeoToolkit.Umbraco.MetaFields.Core/Models/MetaFieldsValue/Database/MetaFieldsValueEntity.cs

@@ -19,6 +19,7 @@ public class MetaFieldsValueEntity
         public string Culture { get; set; } = "";
 
         [Column("UserValue")]
+        [SpecialDbType(SpecialDbTypes.NVARCHARMAX)]
         public string UserValue { get; set; }
     }
 }