private void AddParameterIfNotExists(IDbCommand dbCommand, string paramName, object paramVal, ref HashSet <string> parameters, ITypeHandler typeHandler = null)
{
if (parameters.Contains(paramName) == false)
{
IDbDataParameter cmdParameter = dbCommand.CreateParameter();
cmdParameter.ParameterName = paramName;
if (typeHandler != null)
{
typeHandler.SetParameter(cmdParameter, paramVal);
}
else if (paramVal == null)
{
cmdParameter.Value = DBNull.Value;
}
else
{
//if (paramVal is Enum)
//{
// paramVal = paramVal.GetHashCode();
//}
cmdParameter.Value = paramVal;
try
{
var dbtype = cmdParameter.DbType;
}
catch
{
cmdParameter.Value = paramVal?.ToString();
}
}
dbCommand.Parameters.Add(cmdParameter);
parameters.Add(paramName);
}
}
private void AddParameterIfNotExists(RequestContext context, IDbCommand dbCommand, string paramName, object paramVal, ITypeHandler typeHandler = null)
{
if (!dbCommand.Parameters.Contains(paramName))
{
var cmdParameter = dbCommand.CreateParameter();
cmdParameter.ParameterName = paramName;
if (paramVal == null)
{
cmdParameter.Value = DBNull.Value;
}
else
{
if (typeHandler != null)
{
typeHandler.SetParameter(cmdParameter, paramVal);
}
else
{
if (paramVal is Enum)
{
paramVal = paramVal.GetHashCode();
}
cmdParameter.Value = paramVal;
}
}
dbCommand.Parameters.Add(cmdParameter);
}
}
private void AddDbParameter(IDbCommand dbCommand, DbParameter dbParameter, ITypeHandler typeHandler = null)
{
if (dbCommand.Parameters.Contains(dbParameter.Name))
{
return;
}
var sourceParam = dbCommand.CreateParameter();
sourceParam.ParameterName = GetParameterName(dbParameter.Name);
var paramVal = dbParameter.Value;
if (paramVal == null)
{
sourceParam.Value = DBNull.Value;
}
else
{
if (typeHandler != null)
{
typeHandler.SetParameter(sourceParam, paramVal);
}
else
{
if (paramVal is Enum)
{
paramVal = paramVal.GetHashCode();
}
sourceParam.Value = paramVal;
}
}
dbParameter.SourceParameter = sourceParam;
if (dbParameter.DbType.HasValue)
{
sourceParam.DbType = dbParameter.DbType.Value;
}
if (dbParameter.Direction.HasValue)
{
sourceParam.Direction = dbParameter.Direction.Value;
}
if (dbParameter.Precision.HasValue)
{
sourceParam.Precision = dbParameter.Precision.Value;
}
if (dbParameter.Scale.HasValue)
{
sourceParam.Scale = dbParameter.Scale.Value;
}
if (dbParameter.Size.HasValue)
{
sourceParam.Size = dbParameter.Size.Value;
}
dbCommand.Parameters.Add(sourceParam);
}
public void SetParameter(ParameterProperty mapping, IDataParameter dataParameter, object parameterValue)
{
object data = this._dataExchange.GetData(mapping, parameterValue);
ITypeHandler typeHandler = mapping.TypeHandler;
if (mapping.HasNullValue && typeHandler.Equals(data, mapping.NullValue))
{
data = null;
}
typeHandler.SetParameter(dataParameter, data, mapping.DbType);
}
/// <summary>
/// Performs processing on a value before it is used to set
/// the parameter of a IDbCommand.
/// </summary>
/// <param name="dataParameter"></param>
/// <param name="parameterValue">The value to be set</param>
/// <param name="dbType">Data base type</param>
public override void SetParameter(IDataParameter dataParameter, object parameterValue, string dbType)
{
if (parameterValue != null)
{
ITypeHandler handler = _factory.GetTypeHandler(parameterValue.GetType(), dbType);
handler.SetParameter(dataParameter, parameterValue, dbType);
}
else
{
// When sending a null parameter value to the server,
// the user must specify DBNull, not null.
dataParameter.Value = System.DBNull.Value;
}
}
private void BuildDbParameters(AbstractRequestContext reqConetxt)
{
var dbParameterNames = _sqlParamAnalyzer.Analyse(reqConetxt.RealSql);
if (reqConetxt.CommandType == CommandType.StoredProcedure)
{
foreach (var sqlParameter in reqConetxt.Parameters.Values)
{
var sourceParam = _dbProviderFactory.CreateParameter();
sourceParam.ParameterName = sqlParameter.Name;
sourceParam.Value = sqlParameter.Value;
sqlParameter.SourceParameter = sourceParam;
InitSourceDbParameter(sourceParam, sqlParameter);
}
}
else
{
foreach (var paramName in dbParameterNames)
{
var parameter = reqConetxt.ParameterMap?.GetParameter(paramName);
var propertyName = paramName;
ITypeHandler typeHandler = null;
if (parameter != null)
{
propertyName = parameter.Property;
typeHandler = parameter.Handler;
}
if (!reqConetxt.Parameters.TryGetValue(propertyName, out var sqlParameter))
{
continue;
}
var sourceParam = _dbProviderFactory.CreateParameter();
sourceParam.ParameterName = paramName;
if (typeHandler == null)
{
typeHandler = sqlParameter.TypeHandler ??
_typeHandlerFactory.GetTypeHandler(sqlParameter.ParameterType);
}
typeHandler.SetParameter(sourceParam, sqlParameter.Value);
sqlParameter.SourceParameter = sourceParam;
InitSourceDbParameter(sourceParam, sqlParameter);
}
}
}
private void BuildDbParameters(AbstractRequestContext reqConetxt)
{
if (reqConetxt.CommandType == CommandType.StoredProcedure)
{
foreach (var sqlParameter in reqConetxt.Parameters.Values)
{
if (sqlParameter.SourceParameter != null)
{
sqlParameter.OnSetSourceParameter.Invoke(sqlParameter);
continue;
}
var sourceParam = _dbProviderFactory.CreateParameter();
InitSourceDbParameter(sourceParam, sqlParameter);
sourceParam.ParameterName = sqlParameter.Name;
sourceParam.Value = sqlParameter.Value;
sqlParameter.TypeHandler?.SetParameter(sourceParam, sqlParameter.Value);
sqlParameter.SourceParameter = sourceParam;
}
}
else
{
reqConetxt.RealSql = _sqlParamAnalyzer.Replace(reqConetxt.RealSql, (paramName, nameWithPrefix) =>
{
if (!reqConetxt.Parameters.TryGetValue(paramName, out var sqlParameter))
{
return(nameWithPrefix);
}
ITypeHandler typeHandler =
(reqConetxt.ParameterMap?.GetParameter(paramName)?.Handler ?? sqlParameter.TypeHandler) ??
_typeHandlerFactory.GetTypeHandler(sqlParameter.ParameterType);
var sourceParam = _dbProviderFactory.CreateParameter();
InitSourceDbParameter(sourceParam, sqlParameter);
sourceParam.ParameterName = sqlParameter.Name;
typeHandler.SetParameter(sourceParam, sqlParameter.Value);
sqlParameter.SourceParameter = sourceParam;
if (sqlParameter.Name != paramName)
{
return
($"{reqConetxt.ExecutionContext.SmartSqlConfig.Database.DbProvider.ParameterPrefix}{sqlParameter.Name}");
}
return(nameWithPrefix);
});
}
}
/// <summary>
/// Set parameter value, replace the null value if any.
/// </summary>
/// <param name="mapping"></param>
/// <param name="dataParameter"></param>
/// <param name="parameterValue"></param>
public void SetParameter(ParameterProperty mapping, IDataParameter dataParameter, object parameterValue)
{
object value = dataExchange.GetData(mapping, parameterValue);
ITypeHandler typeHandler = mapping.TypeHandler;
// Apply Null Value
if (mapping.HasNullValue)
{
if (typeHandler.Equals(value, mapping.NullValue))
{
value = null;
}
}
typeHandler.SetParameter(dataParameter, value, mapping.DbType);
}
