public SdbRequest BuildDelete()
{
string sql = $"delete from {_fieldQuotes}{_tableName}{_fieldQuotes} ";
if (_whereBuilder != null)
{
sql += WhereBuilder.Build();
}
else
{
throw new ArgumentException("WHERE condition is mandatory, you can override with 1=1");
}
if (_appendSql != null)
{
sql += _appendSql;
}
SdbRequest dbRequest = SdbRequest.Of(
SdbRequest.CmdType.Command,
sql);
dbRequest.AddParamRange(WhereBuilder.GetParameters());
return(dbRequest);
}
public SdbRequest BuildUpdate(string customFieldsUpdate = "")
{
StringBuilder sql = new StringBuilder($"update {_fieldQuotes}{_tableName}{_fieldQuotes} set ");
if (!string.IsNullOrEmpty(customFieldsUpdate))
{
sql.Append(customFieldsUpdate);
}
foreach (var kv in _insertUpdateValues)
{
sql.Append(_fieldQuotes + kv.Key + _fieldQuotes + "=@" + kv.Key + ",");
}
sql.Remove(sql.Length - 1, 1);
if (_whereBuilder != null)
{
sql.Append(WhereBuilder.Build());
}
else
{
throw new ArgumentException("WHERE condition is mandatory, you can override with 1=1");
}
if (_appendSql != null)
{
sql.Append(_appendSql);
}
SdbRequest dbRequest = SdbRequest.Of(
SdbRequest.CmdType.Command,
sql.ToString(),
null,
_insertUpdateValues);
dbRequest.AddParamRange(WhereBuilder.GetParameters());
return(dbRequest);
}
public SdbRequest BuildSelect()
{
string sql = "select ";
if (_selectFields == null)
{
//TODO: shouldn't this case be "select * from table" ?
throw new ArgumentException("You must inform some select fields before building the SQL");
}
sql += _fieldQuotes + string.Join($"{_fieldQuotes},{_fieldQuotes}", _selectFields) + _fieldQuotes;
sql += $" from {_fieldQuotes}{_tableName}{_fieldQuotes}";
if (_whereBuilder != null)
{
sql += WhereBuilder.Build();
}
if (!string.IsNullOrEmpty(_orderCriteria))
{
sql += " order by " + _orderCriteria;
}
if (_appendSql != null)
{
sql += _appendSql;
}
SdbRequest dbRequest = SdbRequest.Of(
_isScalar ? SdbRequest.CmdType.SingleResult : SdbRequest.CmdType.Query,
sql,
this._selectFields.ToArray()
);
if (_whereBuilder != null)
{
dbRequest.AddParamRange(WhereBuilder.GetParameters());
}
return(dbRequest);
}