public void CommonUse()
{
// some times the select can be static in son place (the service of a DAO)
Select s = new Select("f.Name, f.Description, b.Descriptoin").From("Foo f join f.Bar b");
// Create a new where by checking some contition
Where where = new Where();
// check something and set a condition of where clause
where.And("f.Name like :pName");
// check something else and set another condition of where clause
where.And("b.Asociated > :pAso");
// Inject the where to the select
s.From().SetWhere(where);
// Create a basic order by
OrderBy order = new OrderBy().Add("b.Asociated", true);
// Check some condition and add an order
order.Add("f.Name");
// Inject the OrderBy to the select
s.From().SetOrderBy(order);
// And: The winner is....
string expected =
"select f.Name, f.Description, b.Descriptoin from Foo f join f.Bar b where ((f.Name like :pName) and (b.Asociated > :pAso)) order by b.Asociated desc, f.Name";
Assert.AreEqual(expected, s.Clause);
}
public Where Clone()
{
Where result = new Where(negatingAll);
result.expressions = null;
result.expressions = new List<IQueryPart>(expressions);
return result;
}
public Where Where()
{
if (where == null)
{
where = new Where();
}
return where;
}
public void DirtyWhereCostruction()
{
// This way, to construct the where clause, can be useful if
// you don't know which will be the first expression
Where w = new Where();
w.And("f.Name like :p1").And("length(f.Name)>2").Or("f.Name like 'N%'");
Assert.AreEqual("where ((f.Name like :p1) and (length(f.Name)>2) or (f.Name like 'N%'))", w.Clause);
w = new Where();
w.Or("f.Name like :p1").And("length(f.Name)>2").Or("f.Name like 'N%'");
Assert.AreEqual("where ((f.Name like :p1) and (length(f.Name)>2) or (f.Name like 'N%'))", w.Clause);
}
public void ToRowCount()
{
Select s = new Select("f.Name, f.Description, b.Descriptoin").From("Foo f join f.Bar b");
Where where = new Where();
where.And("f.Name like :pName");
where.And("b.Asociated > :pAso");
s.From().SetWhere(where);
OrderBy order = new OrderBy().Add("b.Asociated", true);
order.Add("f.Name");
s.From().SetOrderBy(order);
DetachedDynQuery ddq = new DetachedDynQuery(s);
DetachedQuery drc = (DetachedQuery) ddq.TransformToRowCount();
Assert.AreEqual(
"select count(*) from Foo f join f.Bar b where ((f.Name like :pName) and (b.Asociated > :pAso))",
drc.Hql);
}
public Where WhereNot()
{
if (where != null)
{
throw new NotSupportedException(
string.Format("Can't override the 'where' clause; original 'where':{0}", where.Clause));
}
where = new Where(true);
return where;
}
public void SetWhere(Where whereClause)
{
if (whereClause == null)
{
throw new ArgumentNullException("whereClause");
}
where = whereClause;
}