Trim Null

NewLifeX · Feb 4, 2024 · 6a9aa76 · 6a9aa76
1 parent 39cc898
commit 6a9aa76
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Showing 3 changed files with 16 additions and 15 deletions.
diff --git a/XCode/Attributes/MapAttribute.cs b/XCode/Attributes/MapAttribute.cs
@@ -12,9 +12,12 @@ public class MapAttribute : Attribute
     /// <summary>数据列</summary>
     public String Name { get; set; }
 
-    private MapProvider _Provider;
+    private MapProvider? _Provider;
     /// <summary>目标提供者</summary>
-    public MapProvider Provider { get { return _Provider ??= GetProvider(_Type, _Key); } set { _Provider = value; } }
+    public MapProvider? Provider { get { return _Provider ??= GetProvider(_Type, _Key); } set { _Provider = value; } }
+
+    private readonly Type? _Type;
+    private readonly String? _Key;
     #endregion
 
     #region 构造
@@ -29,7 +32,7 @@ public MapAttribute(String column)
     /// <param name="name"></param>
     /// <param name="type"></param>
     /// <param name="key"></param>
-    public MapAttribute(String name, Type type, String key = null)
+    public MapAttribute(String name, Type type, String? key = null)
     {
         Name = name;
         _Type = type;
@@ -38,10 +41,7 @@ public MapAttribute(String name, Type type, String key = null)
     #endregion
 
     #region 方法
-    private readonly Type _Type;
-    private readonly String _Key;
-
-    private MapProvider? GetProvider(Type type, String key)
+    private MapProvider? GetProvider(Type? type, String? key)
     {
         if (type == null) return null;
 
@@ -50,8 +50,7 @@ public MapAttribute(String name, Type type, String key = null)
 
         if (key.IsNullOrEmpty())
         {
-            var k = (type.AsFactory()?.Unique?.Name) ?? throw new ArgumentNullException(nameof(key));
-            key = k;
+            key = ((type.AsFactory()?.Unique?.Name) ?? throw new ArgumentNullException(nameof(key)));
         }
 
         return new MapProvider { EntityType = type, Key = key };
@@ -64,18 +63,18 @@ public class MapProvider
 {
     #region 属性
     /// <summary>实体类型</summary>
-    public Type EntityType { get; set; }
+    public Type? EntityType { get; set; }
 
     /// <summary>关联键</summary>
-    public String Key { get; set; }
+    public String? Key { get; set; }
     #endregion
 
     #region 方法
     /// <summary>获取数据源</summary>
     /// <returns></returns>
     public virtual IDictionary<Object, String> GetDataSource()
     {
-        var fact = EntityType.AsFactory();
+        var fact = EntityType?.AsFactory() ?? throw new ArgumentNullException(nameof(EntityType));
 
         var key = Key;
         var mst = fact.Master?.Name;
@@ -94,7 +93,7 @@ public class MapProvider
         var list = fact.Session.Count < 1000 ? fact.FindAllWithCache() : fact.FindAll("", null, null, 0, 100);
 
         //return list.Where(e => e[key] != null).ToDictionary(e => e[key], e => e[mst] + "");
-        return list.Where(e => e[key] != null).ToDictionary(e => e[key], e => e.ToString());//用ToString()可以显示更多信息 2023-08-11
+        return list.Where(e => e[key] != null).ToDictionary(e => e[key]!, e => e.ToString());//用ToString()可以显示更多信息 2023-08-11
     }
     #endregion
 }
diff --git a/XCode/DataAccessLayer/Database/Access.cs b/XCode/DataAccessLayer/Database/Access.cs
@@ -213,6 +213,8 @@ protected override List<IDataIndex> GetIndexes(IDataTable table, DataTable index
             var dic = new Dictionary<String, IDataIndex>();
             foreach (var item in list)
             {
+                if (item.Name.IsNullOrEmpty()) continue;
+
                 if (!dic.TryGetValue(item.Name, out var di))
                 {
                     dic.Add(item.Name, item);

diff --git a/XCode/Model/BatchFinder.cs b/XCode/Model/BatchFinder.cs
@@ -13,7 +13,7 @@ public class BatchFinder<TKey, TEntity> where TEntity : Entity<TEntity>, new()
     /// <summary>实体工厂</summary>
     public IEntityFactory Factory { get; set; }
 
-    private readonly List<TKey> _Keys = new();
+    private readonly List<TKey> _Keys = [];
     /// <summary>主键集合</summary>
     public IList<TKey> Keys => _Keys;
 
@@ -66,7 +66,7 @@ public void Add(IEnumerable<TKey> keys)
         if (key is String str && str.IsNullOrEmpty()) return null;
         if (!_Keys.Contains(key)) throw new ArgumentOutOfRangeException(nameof(key), key, "error");
 
-        var uk = Factory.Table.FindByName(Factory.Unique);
+        var uk = Factory.Table.FindByName(Factory.Unique) ?? throw new ArgumentNullException(nameof(Factory.Unique), "没有唯一主键");
 
         // 向前查询
         while (_index < _Keys.Count)