public double SumAsDouble(string attrDefName)
{
double count = 0;
var sql = SqlQueryBuilder.Build(DataContext, Def);
sql.AddAttribute(attrDefName, SqlQuerySummaryFunction.Sum);
using (var reader = new SqlQueryReader(DataContext, sql))
{
reader.Open();
if (reader.Read())
{
if (!reader.IsDbNull(0))
{
if (reader.Reader.GetFieldType(0) == typeof(double))
{
count = reader.GetDouble(0);
}
else if (reader.Reader.GetFieldType(0) == typeof(decimal))
{
count = (double)reader.GetDecimal(0);
}
}
}
reader.Close();
}
return(count);
}
public List <T> All <T>(string attrDefName)
{
var list = new List <T>();
var sql = SqlQueryBuilder.Build(DataContext, Def);
sql.AddAttribute(attrDefName);
using (var reader = new SqlQueryReader(DataContext, sql))
{
reader.Open();
while (reader.Read())
{
if (!reader.IsDbNull(0))
{
T item;
var v = reader.GetValue(0);
list.Add(v.TryParse(out item) ? item : default(T));
}
else
{
list.Add(default(T));
}
}
reader.Close();
}
return(list);
}
public SqlQueryMasterSlaveLink AddMasterLink(SqlQueryReader master, string masterAttrName, string paramName)
{
var link = new SqlQueryMasterSlaveLink(Query, masterAttrName, paramName);
_masterLinks.Add(link, master);
return(link);
}
public DataTable All()
{
var sql = SqlQueryBuilder.Build(DataContext, Def);
var table = new DataTable(sql.Source.AliasName);
using (var reader = new SqlQueryReader(DataContext, sql))
{
table.Load(reader.Reader);
}
return(table);
}
public T Sum <T>(string attrDefName)
{
var result = default(T);
using (var reader = new SqlQueryReader(DataContext, Query))
{
var v = reader.GetSum(attrDefName);
if (v != null)
{
v.TryParse(out result);
}
}
return(result);
}
public void Update(SqlQueryReader masterSource)
{
if (!masterSource.Active)
{
return;
}
var masterFieldIndex = MasterAttributeId != Guid.Empty
? masterSource.TryGetAttributeIndex(MasterAttributeId)
: masterSource.TryGetAttributeIndex(MasterAttributeName);
if (masterFieldIndex >= 0)
{
Slave.SetParams(SlaveParamName, masterSource.GetValue(masterFieldIndex));
}
}
public int Count()
{
var count = 0;
var sql = SqlQueryBuilder.Build(DataContext, Def);
sql.AddAttribute("&Id", SqlQuerySummaryFunction.Count);
using (var reader = new SqlQueryReader(DataContext, sql))
{
reader.Open();
if (reader.Read())
{
if (!reader.IsDbNull(0))
{
count = reader.GetInt32(0);
}
}
reader.Close();
}
return(count);
}
public T Sum <T>(string attrDefName)
{
T result = default(T);
var sql = SqlQueryBuilder.Build(DataContext, Def);
sql.AddAttribute(attrDefName, SqlQuerySummaryFunction.Sum);
using (var reader = new SqlQueryReader(DataContext, sql))
{
reader.Open();
if (reader.Read())
{
if (!reader.IsDbNull(0))
{
var v = reader.GetValue(0);
v.TryParse(out result);
}
}
reader.Close();
}
return(result);
}
public object Min(string attrDefName)
{
using (var reader = new SqlQueryReader(DataContext, Query))
return(reader.GetMin(attrDefName));
}
public object Min(Guid attrDefId)
{
using (var reader = new SqlQueryReader(DataContext, Query))
return(reader.GetMin(attrDefId));
}
public int Count()
{
using (var reader = new SqlQueryReader(DataContext, Query))
return(reader.GetCount());
}