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- 增加 FreeSql.Provider.OracleOledb 解决US7ASCII 中文乱码问题；

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2881099
2022-08-23 01:28:47 +08:00
parent 4d91d87660
commit 25b98f2fe9
13 changed files with 590 additions and 36 deletions
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52
Providers/FreeSql.Provider.OracleOledb/FreeSql.Provider.OracleOledb.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFrameworks>netstandard2.0;net45;net40</TargetFrameworks>
<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
<Authors>FreeSql;ncc;YeXiangQin</Authors>
<Description>FreeSql 数据库 Oracle 基于 oledb 实现，解决 US7ASCII 中文乱码问题</Description>
<PackageProjectUrl>https://github.com/2881099/FreeSql</PackageProjectUrl>
<RepositoryUrl>https://github.com/2881099/FreeSql</RepositoryUrl>
<RepositoryType>git</RepositoryType>
<PackageLicenseExpression>MIT</PackageLicenseExpression>
<PackageTags>FreeSql;ORM;Oracle;Oledb;US7ASCII</PackageTags>
<PackageId>$(AssemblyName)</PackageId>
<PackageIcon>logo.png</PackageIcon>
<Title>$(AssemblyName)</Title>
<IsPackable>true</IsPackable>
<GenerateAssemblyInfo>true</GenerateAssemblyInfo>
<SignAssembly>true</SignAssembly>
<AssemblyOriginatorKeyFile>key.snk</AssemblyOriginatorKeyFile>
<DelaySign>false</DelaySign>
<Version>3.2.666-preview20220823</Version>
</PropertyGroup>
<ItemGroup>
<None Include="../../logo.png" Pack="true" PackagePath="\" />
</ItemGroup>
<ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
<PackageReference Include="System.Data.OleDb" Version="6.0.0" />
</ItemGroup>
<ItemGroup>
<Compile Include="../FreeSql.Provider.Oracle/**/*.cs" Exclude="../FreeSql.Provider.Oracle/obj/**/*" />
</ItemGroup>
<ItemGroup>
<Compile Remove="..\FreeSql.Provider.Oracle\OracleUtils.cs" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\FreeSql\FreeSql.csproj" />
</ItemGroup>
<PropertyGroup>
<DefineConstants>oledb</DefineConstants>
</PropertyGroup>
<PropertyGroup Condition="'$(TargetFramework)' == 'net40'">
<DefineConstants>net40;oledb</DefineConstants>
</PropertyGroup>
</Project>

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Providers/FreeSql.Provider.OracleOledb/OracleOledbUtils.cs Normal file
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using FreeSql.Internal;
using FreeSql.Internal.Model;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data.OleDb;
using System.Data.Common;
using System.Globalization;
namespace FreeSql.Oracle
{
class OracleUtils : CommonUtils
{
public OracleUtils(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 = (OleDbType?)_orm.CodeFirst.GetDbInfo(type)?.type;
if (dbtype == OleDbType.Boolean)
{
if (value == null) value = null;
else value = (bool)value == true ? 1 : 0;
dbtype = OleDbType.SmallInt;
}
var ret = new OleDbParameter { ParameterName = QuoteParamterName(parameterName) };
if (dbtype != null) ret.OleDbType = dbtype.Value;
ret.Value = value;
if (col != null)
{
var dbtype2 = (OleDbType)_orm.DbFirst.GetDbType(new DatabaseModel.DbColumnInfo { DbTypeTextFull = col.Attribute.DbType?.Replace("NOT NULL", "").Replace(" NULL", "").Trim(), DbTypeText = col.DbTypeText });
switch (dbtype2)
{
case OleDbType.Char:
case OleDbType.VarChar:
case OleDbType.WChar:
case OleDbType.LongVarChar:
case OleDbType.LongVarWChar:
case OleDbType.Decimal:
dbtype = dbtype2;
//if (col.DbSize != 0) ret.Size = col.DbSize;
if (col.DbPrecision != 0) ret.Precision = col.DbPrecision;
if (col.DbScale != 0) ret.Scale = col.DbScale;
break;
}
}
_params?.Add(ret);
return ret;
}
public override DbParameter[] GetDbParamtersByObject(string sql, object obj) =>
Utils.GetDbParamtersByObject<OleDbParameter>(sql, obj, ":", (name, type, value) =>
{
var dbtypeint = _orm.CodeFirst.GetDbInfo(type)?.type;
var dbtype = dbtypeint != null ? (OleDbType?)dbtypeint : null;
if (dbtype == OleDbType.Boolean)
{
if (value == null) value = null;
else value = (bool)value == true ? 1 : 0;
dbtype = OleDbType.SmallInt;
}
var ret = new OleDbParameter { ParameterName = $":{name}" };
if (dbtype != null) ret.OleDbType = dbtype.Value;
if (value is IList valueList && value is Array == false && valueList.Count > 0)
{
var valueItemType = valueList[0]?.GetType();
if (valueItemType == typeof(int)) LocalSetListValue<int>();
else if (valueItemType == typeof(long)) LocalSetListValue<long>();
else if (valueItemType == typeof(short)) LocalSetListValue<short>();
else if (valueItemType == typeof(string)) LocalSetListValue<string>();
else if (valueItemType == typeof(Guid)) LocalSetListValue<Guid>();
else if (valueItemType == typeof(char)) LocalSetListValue<char>();
else if (valueItemType == typeof(bool)) LocalSetListValue<bool>();
else if (valueItemType == typeof(uint)) LocalSetListValue<uint>();
else if (valueItemType == typeof(ulong)) LocalSetListValue<ulong>();
else if (valueItemType == typeof(ushort)) LocalSetListValue<ushort>();
else if (valueItemType == typeof(decimal)) LocalSetListValue<decimal>();
else if (valueItemType == typeof(double)) LocalSetListValue<double>();
else if (valueItemType == typeof(float)) LocalSetListValue<float>();
else if (valueItemType == typeof(DateTime)) LocalSetListValue<DateTime>();
void LocalSetListValue<T>()
{
var valueCopy = new List<T>();
foreach (var valueItem in valueList) valueCopy.Add((T)Utils.GetDataReaderValue(valueItemType, valueItem));
value = valueCopy.ToArray();
}
}
ret.Value = value; //IList 赋值会报错
return ret;
});
public override string FormatSql(string sql, params object[] args) => sql?.FormatOracle(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);
}
}
}

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Providers/FreeSql.Provider.OracleOledb/key.snk Normal file
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