From b1574678756c04677859061ef2cd676233246f3f Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 13 Dec 2022 11:14:30 +0800
Subject: Develop secret api. v33

---
 .../CrupestApi.Commons/Crud/ColumnMetadata.cs      | 33 ++++++++--------------
 1 file changed, 11 insertions(+), 22 deletions(-)

(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 c02f776..1082ea4 100644
--- a/docker/crupest-api/CrupestApi/CrupestApi.Commons/Crud/ColumnMetadata.cs
+++ b/docker/crupest-api/CrupestApi/CrupestApi.Commons/Crud/ColumnMetadata.cs
@@ -20,10 +20,17 @@ public static class ColumnMetadataKeys
 
     /// <summary>
     /// The default value generator method name in entity type. Default to null, aka, search for ColumnNameDefaultValueGenerator. 
+    /// Generator has signature <code>static void DefaultValueGenerator(ColumnInfo column)</code>
     /// </summary>
-    /// <returns></returns>
     public const string DefaultValueGenerator = nameof(ColumnAttribute.DefaultValueGenerator);
 
+    /// <summary>
+    /// The validator method name in entity type. Default to null, aka, the default validator.
+    /// Validator has signature <code>static void Validator(ColumnInfo column, object value)</code>
+    /// Value param is never null. If you want to mean NULL, it should be a <see cref="DbNullValue"/>.
+    /// </summary>
+    public const string Validator = nameof(ColumnAttribute.Validator);
+
     /// <summary>
     /// The column can only be set when inserted, can't be changed in update.
     /// </summary>
@@ -34,24 +41,6 @@ public static class ColumnMetadataKeys
     /// This column acts as key when get one entity for http get method in path. 
     /// </summary>
     public const string ActAsKey = nameof(ColumnAttribute.ActAsKey);
-
-    /// <summary>
-    /// Define what to do when update.
-    /// </summary>
-    public const string UpdateBehavior = nameof(ColumnAttribute.UpdateBehavior);
-}
-
-[Flags]
-public enum UpdateBehavior
-{
-    /// <summary>
-    /// Null value means do not update that column.
-    /// </summary>
-    NullIsNotUpdate = 0,
-    /// <summary>
-    /// Null value means set to null.
-    /// </summary>
-    NullIsSetNull = 1
 }
 
 public interface IColumnMetadata
@@ -125,15 +114,15 @@ public class ColumnAttribute : Attribute, IColumnMetadata
     /// <seealso cref="ColumnMetadataKeys.DefaultValueGenerator"/>
     public string? DefaultValueGenerator { get; init; }
 
+    /// <seealso cref="ColumnMetadataKeys.Validator"/>
+    public string? Validator { get; init; }
+
     /// <seealso cref="ColumnMetadataKeys.NoUpdate"/>
     public bool NoUpdate { get; init; }
 
     /// <seealso cref="ColumnMetadataKeys.ActAsKey"/>
     public bool ActAsKey { get; init; }
 
-    /// <seealso cref="ColumnMetadataKeys.UpdateBehavior">
-    public UpdateBehavior UpdateBehavior { get; init; } = UpdateBehavior.NullIsNotUpdate;
-
     public bool TryGetValue(string key, out object? value)
     {
         var property = GetType().GetProperty(key);
-- 
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