unsigned int Query::Clone(const Query *other)
{
// TRACE << "Cloning " << other->ToString() << "\n";
for (restrictions_t::const_iterator i = other->m_restrictions.begin();
i != other->m_restrictions.end();
++i)
{
if (i->is_string)
Restrict(i->which, i->rt, i->sval);
else
Restrict(i->which, i->rt, i->ival);
}
for (relations_t::const_iterator i = other->m_relations.begin();
i != other->m_relations.end();
++i)
{
if (i->anditive)
And(Subexpression((int)i->a), Subexpression((int)i->b));
else
Or(Subexpression((int)i->a), Subexpression((int)i->b));
}
unsigned int rc = Where(Subexpression(other->m_root));
if (rc)
return rc;
for (orderby_t::const_iterator i = other->m_orderby.begin();
i != other->m_orderby.end();
++i)
{
rc = OrderBy(*i);
if (rc)
return rc;
}
for (orderby_t::const_iterator i = other->m_collateby.begin();
i != other->m_collateby.end();
++i)
{
rc = CollateBy(*i);
if (rc)
return rc;
}
// TRACE << "Cloned: " << ToString() << "\n";
return 0;
}
/** expression without query parameters */
std::string operator()() {
return
std::string("SELECT ") +
//helper::impl_select_part<0,Fields...>()() +
Fields()() + std::string(" ") +
From()() +
(std::is_same<Where,none>::value ?
std::string("") :
Where()() +
(std::is_same<GroupBy,none>::value ?
std::string("") :
GroupBy()() +
(std::is_same<Having,none>::value ?
std::string("") :
Having()()))) +
(std::is_same<OrderBy,none>::value ?
std::string("") :
OrderBy()());
}