- 增加所有国产数据库支持 CustomMySql、CustomPostgreSQL、CustomOracle、CustomSqlServer 自定义适配；

2025-06-18 20:08:15 +08:00 · 2022-09-09 01:38:24 +08:00
parent 3ec8e2118d
commit b7e96620a7
146 changed files with 50828 additions and 29 deletions
--- a/Providers/FreeSql.Provider.Custom/Oracle/CustomOracleUtils.cs
+++ b/Providers/FreeSql.Provider.Custom/Oracle/CustomOracleUtils.cs
@ -0,0 +1,133 @@
+using FreeSql.Internal;
+using FreeSql.Internal.Model;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.Common;
+using System.Globalization;
+
+namespace FreeSql.Custom.Oracle
+{
+
+    class CustomOracleUtils : CommonUtils
+    {
+        DbProviderFactory Factory => FreeSqlCustomAdapterGlobalExtensions.GetDbProviderFactory(_orm);
+
+        public CustomOracleUtils(IFreeSql orm) : base(orm)
+        {
+        }
+
+        public override DbParameter AppendParamter(List<DbParameter> _params, string parameterName, ColumnInfo col, Type type, object value)
+        {
+            if (string.IsNullOrEmpty(parameterName)) parameterName = $"p_{_params?.Count}";
+            var dbtype = (DbType?)_orm.CodeFirst.GetDbInfo(type)?.type;
+            switch (dbtype)
+            {
+                case DbType.Boolean:
+                    if (value == null) value = null;
+                    else value = (bool)value == true ? 1 : 0;
+                    dbtype = DbType.Int32;
+                    break;
+               
+                case DbType.String:
+                case DbType.AnsiString:
+                case DbType.StringFixedLength:
+                case DbType.AnsiStringFixedLength:
+                    value = string.Concat(value);
+                    break;
+            }
+            var ret = Factory.CreateParameter();
+            ret.ParameterName = QuoteParamterName(parameterName);
+            if (dbtype != null) ret.DbType = dbtype.Value;
+            ret.Value = value;
+            _params?.Add(ret);
+            return ret;
+        }
+
+        public override DbParameter[] GetDbParamtersByObject(string sql, object obj) =>
+            Utils.GetDbParamtersByObject<DbParameter>(sql, obj, null, (name, type, value) =>
+            {
+                var dbtype = (DbType?)_orm.CodeFirst.GetDbInfo(type)?.type;
+                switch (dbtype)
+                {
+                    case DbType.Boolean:
+                        if (value == null) value = null;
+                        else value = (bool)value == true ? 1 : 0;
+                        dbtype = DbType.Int32;
+                        break;
+
+                    case DbType.String:
+                    case DbType.AnsiString:
+                    case DbType.StringFixedLength:
+                    case DbType.AnsiStringFixedLength:
+                        value = string.Concat(value);
+                        break;
+                }
+                var ret = Factory.CreateParameter();
+                ret.ParameterName = $":{name}";
+                if (dbtype != null) ret.DbType = dbtype.Value;
+                ret.Value = value;
+                return ret;
+            });
+
+        public override string FormatSql(string sql, params object[] args) => sql?.FormatCustomOracle(args);
+        public override string QuoteSqlName(params string[] name)
+        {
+            if (name.Length == 1)
+            {
+                var nametrim = name[0].Trim();
+                if (nametrim.StartsWith("(") && nametrim.EndsWith(")"))
+                    return nametrim; //原生SQL
+                if (nametrim.StartsWith("\"") && nametrim.EndsWith("\""))
+                    return nametrim;
+                return $"\"{nametrim.Replace(".", "\".\"")}\"";
+            }
+            return $"\"{string.Join("\".\"", name)}\"";
+        }
+        public override string TrimQuoteSqlName(string name)
+        {
+            var nametrim = name.Trim();
+            if (nametrim.StartsWith("(") && nametrim.EndsWith(")"))
+                return nametrim; //原生SQL
+            return $"{nametrim.Trim('"').Replace("\".\"", ".").Replace(".\"", ".")}";
+        }
+        public override string[] SplitTableName(string name) => GetSplitTableNames(name, '"', '"', 2);
+        public override string QuoteParamterName(string name) => $":{name}";
+        public override string IsNull(string sql, object value) => $"nvl({sql}, {value})";
+        public override string StringConcat(string[] objs, Type[] types) => $"{string.Join(" || ", objs)}";
+        public override string Mod(string left, string right, Type leftType, Type rightType) => $"mod({left}, {right})";
+        public override string Div(string left, string right, Type leftType, Type rightType) => $"trunc({left} / {right})";
+        public override string Now => "systimestamp";
+        public override string NowUtc => "sys_extract_utc(systimestamp)";
+
+        public override string QuoteWriteParamterAdapter(Type type, string paramterName) => paramterName;
+        protected override string QuoteReadColumnAdapter(Type type, Type mapType, string columnName) => columnName;
+
+        public override string GetNoneParamaterSqlValue(List<DbParameter> specialParams, string specialParamFlag, ColumnInfo col, Type type, object value)
+        {
+            if (value == null) return "NULL";
+            if (type.IsNumberType()) return string.Format(CultureInfo.InvariantCulture, "{0}", value);
+            if (type == typeof(string))
+            {
+                var valueString = value as string;
+                if (valueString != null)
+                {
+                    if (valueString.Length < 4000) return string.Concat("'", valueString.Replace("'", "''"), "'");
+                    var pam = AppendParamter(specialParams, $"p_{specialParams?.Count}{specialParamFlag}", col, type, value);
+                    return pam.ParameterName;
+                }
+            }
+            if (type == typeof(byte[]))
+            {
+                var valueBytes = value as byte[];
+                if (valueBytes != null)
+                {
+                    if (valueBytes.Length < 4000) return $"hextoraw('{CommonUtils.BytesSqlRaw(valueBytes)}')";
+                    var pam = AppendParamter(specialParams, $"p_{specialParams?.Count}{specialParamFlag}", col, type, value);
+                    return pam.ParameterName;
+                }
+            }
+            return FormatSql("{0}", value, 1);
+        }
+    }
+}