static DBHelper getDBHelper(DbContext dbContext)
{
var dbConnection = dbContext.Database.GetDbConnection();
var builder = DBConfigRegister.GetInstance();
builder.RegisterDBAccessBuild(dbLocation =>
{
return(new DBAccessBuild(DBType.MSSQL, dbConnection));
});
var dbConnectionTypeName = dbConnection.GetType().Name;
DBType dBType = DBType.MSSQL;
switch (dbConnectionTypeName)
{
case "SqlConnection":
dBType = DBType.MSSQL;
break;
case "MySqlConnection":
dBType = DBType.MYSQL;
break;
case "OracleConnection":
dBType = DBType.ORACLE;
break;
}
var dBAccessBuild = new DBAccessBuild(dBType, dbConnection);
var helper = DBConfigRegister.GetDBHelper(dBAccessBuild);
return(helper);
}
static Extensions()
{
SettingConfig.StringFieldLength = 50;
var builder = DBConfigRegister.GetInstance();
builder.UseMySql();
}
internal override DbContextInner GetDbContext()
{
dbLocation.ManageName = ManageName;
var helper = DBConfigRegister.GetDBHelper(dbLocation);
var dbContext = new DbContextInner(helper, dbLocation);
dbContext.UseSharding = true;
return(dbContext);
}
DbContextInner getDbContext(string manageName)
{
var dbLocation = new CRL.DBLocation()
{
DataAccessType = DataAccessType.Default, ManageType = GetType(), ManageName = manageName
};
var helper = DBConfigRegister.GetDBHelper(dbLocation);
var dbContext = new DbContextInner(helper, dbLocation);
return(dbContext);
}
/// <summary>
/// 根据数据库类型获取适配器
/// </summary>
/// <param name="dbContext"></param>
/// <returns></returns>
public static DBAdapterBase GetDBAdapterBase(DbContextInner dbContext)
{
DBAdapterBase db = null;
var a = DBAdapterBaseCache.TryGetValue(dbContext.DBHelper.CurrentDBType, out db);
if (a)
{
return(db);
}
db = DBConfigRegister.GetDBAdapterBase(dbContext);
DBAdapterBaseCache.Add(dbContext.DBHelper.CurrentDBType, db);
return(db);
}
/// <summary>
/// 设置定位
/// </summary>
public BaseProvider <TModel> SetLocation(TModel args)
{
var table = TypeCache.GetTable(typeof(TModel));
var func = DBConfigRegister.GetLocation <TModel>();
if (func == null || args == null)
{
//throw new CRLException($"指定类型{typeof(TModel).Name} 未注册定位方法");
//没有设置则按默认库
return(this);
}
var location = func(table, args);
location.CheckNull("location");
dbLocation.ShardingLocation = location;
dbLocation.ShardingLocation.TableName = table.TableName;
DBExtend = null;
return(this);
}
public static LambdaQuery <T> CreateLambdaQuery <T>(DbContextInner _dbContext) where T : class
{
//var configBuilder = DBConfigRegister.current;
var _DBType = _dbContext.DBHelper.CurrentDBType;
if (_DBType != DBType.MongoDB)
{
return(new RelationLambdaQuery <T>(_dbContext));
}
var type = typeof(T);
var a = mongoQueryCreaters.TryGetValue(type, out object creater);
if (!a)
{
var typeMongo = DBConfigRegister.GetLambdaQueryType(DBType.MongoDB);
var genericType = typeMongo.MakeGenericType(typeof(T));
creater = Core.DynamicMethodHelper.CreateCtorFunc <Func <DbContextInner, LambdaQuery <T> > >(genericType, new Type[] { typeof(DbContextInner) });
mongoQueryCreaters.TryAdd(type, creater);
}
var func = (Func <DbContextInner, LambdaQuery <T> >)creater;
return(func(_dbContext));
}
