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Added more checks for database traits

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This commit is contained in:
Roland Bock
2013-11-01 15:25:52 +01:00
parent e63a798a82
commit d3963e04b6
14 changed files with 53 additions and 11 deletions
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include/sqlpp11/in.h
+7 -5
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@@ -35,10 +35,10 @@ namespace sqlpp
{
namespace detail
{
template<bool not_inverted, typename Operand, typename... Args>
struct in_t: public Operand::_value_type::template operators<in_t<not_inverted, Operand, Args...>>
template<bool NotInverted, typename Operand, typename... Args>
struct in_t: public Operand::_value_type::template operators<in_t<NotInverted, Operand, Args...>>
{
static constexpr bool inverted = not not_inverted;
static constexpr bool _inverted = not NotInverted;
static_assert(sizeof...(Args) > 0, "in() requires at least one argument");
struct _value_type: public Operand::_value_type::_base_value_type
@@ -48,7 +48,7 @@ namespace sqlpp
struct _name_t
{
static constexpr const char* _get_name() { return inverted ? "NOT IN" : "IN"; }
static constexpr const char* _get_name() { return _inverted ? "NOT IN" : "IN"; }
template<typename T>
struct _member_t
{
@@ -75,8 +75,10 @@ namespace sqlpp
template<typename Db>
void serialize(std::ostream& os, Db& db) const
{
static_assert(NotInverted and Db::_supports_in
or _inverted and Db::_supports_not_in, "in() not supported by current database");
_operand.serialize(os, db);
os << (inverted ? " NOT IN(" : " IN(");
os << (_inverted ? " NOT IN(" : " IN(");
detail::serialize_tuple(os, db, _args, ',');
os << ")";
}