tk/FreeSql
1
0
Fork 0
mirror of https://github.com/nsnail/FreeSql.git synced 2025-12-22 09:05:47 +08:00
Code Issues Packages Projects Releases Wiki Activity

initial commit

Browse Source
This commit is contained in:
tk
2024-11-13 18:18:28 +08:00
commit 013f35e296
1500 changed files with 443723 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

114
Providers/FreeSql.Provider.Odbc/Dameng/OdbcDamengUtils.cs Normal file
View File

@@ -0,0 +1,114 @@
using FreeSql.Internal;
using FreeSql.Internal.Model;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Data.Odbc;
using System.Globalization;
namespace FreeSql.Odbc.Dameng
{
class OdbcDamengUtils : CommonUtils
{
public OdbcDamengUtils(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 = (OdbcType?)_orm.CodeFirst.GetDbInfo(type)?.type;
switch (dbtype)
{
case OdbcType.Bit:
if (value == null) value = null;
else value = (bool)value == true ? 1 : 0;
dbtype = OdbcType.Int;
break;
case OdbcType.Char:
case OdbcType.NChar:
case OdbcType.VarChar:
case OdbcType.NVarChar:
case OdbcType.Text:
case OdbcType.NText:
value = string.Concat(value);
break;
}
var ret = new OdbcParameter { ParameterName = QuoteParamterName(parameterName) };
if (dbtype != null) ret.OdbcType = dbtype.Value;
ret.Value = value;
_params?.Add(ret);
return ret;
}
public override DbParameter[] GetDbParamtersByObject(string sql, object obj) =>
Utils.GetDbParamtersByObject<OdbcParameter>(sql, obj, null, (name, type, value) =>
{
var dbtype = (OdbcType?)_orm.CodeFirst.GetDbInfo(type)?.type;
switch (dbtype)
{
case OdbcType.Bit:
if (value == null) value = null;
else value = (bool)value == true ? 1 : 0;
dbtype = OdbcType.Int;
break;
case OdbcType.Char:
case OdbcType.NChar:
case OdbcType.VarChar:
case OdbcType.NVarChar:
case OdbcType.Text:
case OdbcType.NText:
value = string.Concat(value);
break;
}
var ret = new OdbcParameter { ParameterName = $":{name}" };
if (dbtype != null) ret.OdbcType = dbtype.Value;
ret.Value = value;
return ret;
});
public override string FormatSql(string sql, params object[] args) => sql?.FormatOdbcDameng(args);
public override string QuoteSqlNameAdapter(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 => "getutcdate";
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(byte[])) return $"hextoraw('{CommonUtils.BytesSqlRaw(value as byte[])}')";
return FormatSql("{0}", value, 1);
}
}
}