增加DB2数据库基础功能实现

2025-09-22 12:09:29 +08:00 · 2025-03-10 16:52:05 +08:00
parent d0aea1173a
commit 4a3aa8b332
26 changed files with 3928 additions and 0 deletions
--- a/Src/Asp.NetCore2/SqlSugar.Db2Core/DB2/DbBind/DB2DbBind.cs
+++ b/Src/Asp.NetCore2/SqlSugar.Db2Core/DB2/DbBind/DB2DbBind.cs
@@ -0,0 +1,117 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace SqlSugar.DB2
+{
+    public class DB2DbBind : DbBindProvider
+    {
+        public override string GetDbTypeName(string csharpTypeName)
+        {
+            if (csharpTypeName == UtilConstants.ByteArrayType.Name)
+                return "bytea";
+            if (csharpTypeName.ToLower() == "int32")
+                csharpTypeName = "int";
+            if (csharpTypeName.ToLower() == "int16")
+                csharpTypeName = "short";
+            if (csharpTypeName.ToLower() == "int64")
+                csharpTypeName = "long";
+            if (csharpTypeName.ToLower().IsIn("boolean", "bool"))
+                csharpTypeName = "bool";
+            if (csharpTypeName == "DateTimeOffset")
+                csharpTypeName = "DateTime";
+            var mappings = this.MappingTypes.Where(it => it.Value.ToString().Equals(csharpTypeName, StringComparison.CurrentCultureIgnoreCase)).ToList();
+            if (mappings != null && mappings.Count > 0)
+                return mappings.First().Key;
+            else
+                return "varchar";
+        }
+        public override string GetPropertyTypeName(string dbTypeName)
+        {
+            dbTypeName = dbTypeName.ToLower();
+            var propertyTypes = MappingTypes.Where(it => it.Value.ToString().ToLower() == dbTypeName || it.Key.ToLower() == dbTypeName);
+            if (propertyTypes == null)
+            {
+                return "other";
+            }
+            else if (dbTypeName == "xml" || dbTypeName == "string" || dbTypeName == "jsonb" || dbTypeName == "json")
+            {
+                return "string";
+            }
+            else if (dbTypeName == "bpchar")//数据库char datatype 查询出来的时候是 bpchar
+            {
+                return "char";
+            }
+            if (dbTypeName == "byte[]")
+            {
+                return "byte[]";
+            }
+            else if (propertyTypes == null || propertyTypes.Count() == 0)
+            {
+                if (dbTypeName.StartsWith("_"))
+                {
+                    var dbTypeName2 = dbTypeName.TrimStart('_');
+                    return MappingTypes.Where(it => it.Value.ToString().ToLower() == dbTypeName2 || it.Key.ToLower() == dbTypeName2).Select(it => it.Value + "[]").First();
+                }
+                Check.ThrowNotSupportedException(string.Format(" \"{0}\" Type NotSupported, DbBindProvider.GetPropertyTypeName error.", dbTypeName));
+                return null;
+            }
+            else if (propertyTypes.First().Value == CSharpDataType.byteArray)
+            {
+                return "byte[]";
+            }
+            else
+            {
+                return propertyTypes.First().Value.ToString();
+            }
+        }
+        public override List<KeyValuePair<string, CSharpDataType>> MappingTypes
+        {
+            get
+            {
+                var extService = this.Context.CurrentConnectionConfig.ConfigureExternalServices;
+                if (extService != null && extService.AppendDataReaderTypeMappings.HasValue())
+                {
+                    return extService.AppendDataReaderTypeMappings.Union(MappingTypesConst).ToList();
+                }
+                else
+                {
+                    return MappingTypesConst;
+                }
+            }
+        }
+        public static List<KeyValuePair<string, CSharpDataType>> MappingTypesConst = new List<KeyValuePair<string, CSharpDataType>>(){
+
+                    new KeyValuePair<string, CSharpDataType>("varbinary",CSharpDataType.@byteArray),
+                    new KeyValuePair<string, CSharpDataType>("binary",CSharpDataType.@byteArray),
+                    new KeyValuePair<string, CSharpDataType>("blob",CSharpDataType.@byteArray),
+
+                    new KeyValuePair<string, CSharpDataType>("varchar",CSharpDataType.@string),
+                    new KeyValuePair<string, CSharpDataType>("char",CSharpDataType.@string),
+                    new KeyValuePair<string, CSharpDataType>("clob",CSharpDataType.@string),
+
+                    new KeyValuePair<string, CSharpDataType>("date",CSharpDataType.@DateTime),
+                    new KeyValuePair<string, CSharpDataType>("time",CSharpDataType.@DateTime),
+                    new KeyValuePair<string, CSharpDataType>("timestamp",CSharpDataType.@DateTime),
+
+                    new KeyValuePair<string, CSharpDataType>("integer",CSharpDataType.@int),
+                    new KeyValuePair<string, CSharpDataType>("smallint",CSharpDataType.@short),
+                    new KeyValuePair<string, CSharpDataType>("smallint",CSharpDataType.@byte),
+                    new KeyValuePair<string, CSharpDataType>("bigint",CSharpDataType.@long),
+
+                    new KeyValuePair<string, CSharpDataType>("real",CSharpDataType.Single),
+                    new KeyValuePair<string, CSharpDataType>("float",CSharpDataType.@float),
+                    new KeyValuePair<string, CSharpDataType>("double",CSharpDataType.@double),
+                    new KeyValuePair<string, CSharpDataType>("decimal",CSharpDataType.@decimal),
+                    new KeyValuePair<string, CSharpDataType>("numeric",CSharpDataType.@decimal),
+
+                };
+        public override List<string> StringThrow
+        {
+            get
+            {
+                return new List<string>() { "int32", "datetime", "decimal", "double", "byte" };
+            }
+        }
+    }
+}