From 4f96f8db974fa7a236ce8ffa564bccdb62691cfa Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sat, 10 Dec 2022 16:56:33 +0800
Subject: Develop secret api. v24

---
 .../CrupestApi.Commons/Crud/ColumnMetadata.cs          | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'docker/crupest-api/CrupestApi/CrupestApi.Commons/Crud/ColumnMetadata.cs')

diff --git a/docker/crupest-api/CrupestApi/CrupestApi.Commons/Crud/ColumnMetadata.cs b/docker/crupest-api/CrupestApi/CrupestApi.Commons/Crud/ColumnMetadata.cs
index 91e49f8..1ca2ce8 100644
--- a/docker/crupest-api/CrupestApi/CrupestApi.Commons/Crud/ColumnMetadata.cs
+++ b/docker/crupest-api/CrupestApi/CrupestApi.Commons/Crud/ColumnMetadata.cs
@@ -17,6 +17,18 @@ public static class ColumnMetadataKeys
     /// This indicates that you take care of generate this column value when create entity. User calling the api can not specify the value.
     /// </summary>
     public const string ClientGenerate = nameof(ColumnAttribute.DefaultEmptyForString);
+
+    /// <summary>
+    /// The default value generator method name in entity type. Default to null, aka, search for ColumnNameDefaultValueGenerator. 
+    /// </summary>
+    /// <returns></returns>
+    public const string DefaultValueGenerator = nameof(ColumnAttribute.DefaultValueGenerator);
+
+    /// <summary>
+    /// The column can only be set when inserted, can't be changed in update.
+    /// </summary>
+    /// <returns></returns>
+    public const string NoUpdate = nameof(ColumnAttribute.NoUpdate);
 }
 
 public interface IColumnMetadata
@@ -87,6 +99,12 @@ public class ColumnAttribute : Attribute, IColumnMetadata
     /// <see cref="ColumnMetadataKeys.ClientGenerate"/>
     public bool ClientGenerate { get; init; }
 
+    /// <see cref="ColumnMetadataKeys.DefaultValueGenerator"/>
+    public string? DefaultValueGenerator { get; init; }
+
+    /// <see cref="ColumnMetadataKeys.NoUpdate"/>
+    public bool NoUpdate { get; init; }
+
     public bool TryGetValue(string key, out object? value)
     {
         var property = GetType().GetProperty(key);
-- 
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