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authorBoris Kolpackov <boris@codesynthesis.com>2013-01-24 15:10:21 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2013-01-24 15:10:21 +0200
commit10a88bacf1ec2b8b0700a27ea022d503f295825d (patch)
tree14329e532f68dd06064ac1d2d932e8c07cbff0b8
parentb505d1a2c18084505b3a69f08e3465619f2de0dd (diff)
Add support for mapping char[N] to CHAR/VARCHAR database types
Also improve query support for arrays (decaying).
-rw-r--r--odb/pgsql/query.hxx368
-rw-r--r--odb/pgsql/query.txx10
-rw-r--r--odb/pgsql/traits.cxx49
-rw-r--r--odb/pgsql/traits.hxx121
4 files changed, 429 insertions, 119 deletions
diff --git a/odb/pgsql/query.hxx b/odb/pgsql/query.hxx
index 9d0b333..5acf24e 100644
--- a/odb/pgsql/query.hxx
+++ b/odb/pgsql/query.hxx
@@ -31,23 +31,72 @@ namespace odb
namespace pgsql
{
template <typename T>
- class val_bind
+ struct val_bind
{
- public:
+ typedef const T& type;
+
+ explicit
+ val_bind (type v): val (v) {}
+
+ type val;
+ };
+
+ template <typename T, std::size_t N>
+ struct val_bind<T[N]>
+ {
+ typedef const T* type;
+
explicit
- val_bind (const T& v): val (v) {}
+ val_bind (type v): val (v) {}
- const T& val;
+ type val;
};
template <typename T>
- class ref_bind
+ struct ref_bind
+ {
+ typedef const T& type;
+
+ explicit
+ ref_bind (type r): ref (r) {}
+
+ const void*
+ ptr () const {return &ref;}
+
+ type ref;
+ };
+
+ template <typename T, std::size_t N>
+ struct ref_bind<T[N]>
+ {
+ typedef const T* type;
+
+ explicit
+ ref_bind (type r): ref (r) {}
+
+ // Allow implicit conversion from decayed ref_bind's.
+ //
+ ref_bind (ref_bind<T*> r): ref (r.ref) {}
+ ref_bind (ref_bind<const T*> r): ref (r.ref) {}
+
+ const void*
+ ptr () const {return ref;}
+
+ type ref;
+ };
+
+ template <typename T, database_type_id ID>
+ struct val_bind_typed: val_bind<T>
{
- public:
explicit
- ref_bind (const T& r): ref (r) {}
+ val_bind_typed (typename val_bind<T>::type v): val_bind<T> (v) {}
+ };
- const T& ref;
+ template <typename T, database_type_id ID>
+ struct ref_bind_typed: ref_bind<T>
+ {
+ explicit
+ ref_bind_typed (typename ref_bind<T>::type r): ref_bind<T> (r) {}
};
struct LIBODB_PGSQL_EXPORT query_param: details::shared_base
@@ -148,8 +197,15 @@ namespace odb
query_base (val_bind<T> v)
: binding_ (0, 0), native_binding_ (0, 0, 0, 0)
{
- append<T, type_traits<T>::db_type_id> (
- v, details::conversion<T>::to ());
+ *this += v;
+ }
+
+ template <typename T, database_type_id ID>
+ explicit
+ query_base (val_bind_typed<T, ID> v)
+ : binding_ (0, 0), native_binding_ (0, 0, 0, 0)
+ {
+ *this += v;
}
template <typename T>
@@ -157,8 +213,15 @@ namespace odb
query_base (ref_bind<T> r)
: binding_ (0, 0), native_binding_ (0, 0, 0, 0)
{
- append<T, type_traits<T>::db_type_id> (
- r, details::conversion<T>::to ());
+ *this += r;
+ }
+
+ template <typename T, database_type_id ID>
+ explicit
+ query_base (ref_bind_typed<T, ID> r)
+ : binding_ (0, 0), native_binding_ (0, 0, 0, 0)
+ {
+ *this += r;
}
template <database_type_id ID>
@@ -231,6 +294,13 @@ namespace odb
return val_bind<T> (x);
}
+ template <database_type_id ID, typename T>
+ static val_bind_typed<T, ID>
+ _val (const T& x)
+ {
+ return val_bind_typed<T, ID> (x);
+ }
+
template <typename T>
static ref_bind<T>
_ref (const T& x)
@@ -238,6 +308,13 @@ namespace odb
return ref_bind<T> (x);
}
+ template <database_type_id ID, typename T>
+ static ref_bind_typed<T, ID>
+ _ref (const T& x)
+ {
+ return ref_bind_typed<T, ID> (x);
+ }
+
public:
query_base&
operator+= (const query_base&);
@@ -258,6 +335,17 @@ namespace odb
return *this;
}
+ template <typename T, database_type_id ID>
+ query_base&
+ operator+= (val_bind_typed<T, ID> v)
+ {
+ // We are not using default type_traits so no default conversion
+ // either.
+ //
+ append<T, ID> (v, 0);
+ return *this;
+ }
+
template <typename T>
query_base&
operator+= (ref_bind<T> r)
@@ -267,6 +355,17 @@ namespace odb
return *this;
}
+ template <typename T, database_type_id ID>
+ query_base&
+ operator+= (ref_bind_typed<T, ID> r)
+ {
+ // We are not using default type_traits so no default conversion
+ // either.
+ //
+ append<T, ID> (r, 0);
+ return *this;
+ }
+
// Implementation details.
//
public:
@@ -335,16 +434,26 @@ namespace odb
template <typename T>
inline query_base
- operator+ (const query_base& q, ref_bind<T> b)
+ operator+ (val_bind<T> b, const query_base& q)
+ {
+ query_base r;
+ r += b;
+ r += q;
+ return r;
+ }
+
+ template <typename T, database_type_id ID>
+ inline query_base
+ operator+ (const query_base& q, val_bind_typed<T, ID> b)
{
query_base r (q);
r += b;
return r;
}
- template <typename T>
+ template <typename T, database_type_id ID>
inline query_base
- operator+ (val_bind<T> b, const query_base& q)
+ operator+ (val_bind_typed<T, ID> b, const query_base& q)
{
query_base r;
r += b;
@@ -354,6 +463,15 @@ namespace odb
template <typename T>
inline query_base
+ operator+ (const query_base& q, ref_bind<T> b)
+ {
+ query_base r (q);
+ r += b;
+ return r;
+ }
+
+ template <typename T>
+ inline query_base
operator+ (ref_bind<T> b, const query_base& q)
{
query_base r;
@@ -362,6 +480,25 @@ namespace odb
return r;
}
+ template <typename T, database_type_id ID>
+ inline query_base
+ operator+ (const query_base& q, ref_bind_typed<T, ID> b)
+ {
+ query_base r (q);
+ r += b;
+ return r;
+ }
+
+ template <typename T, database_type_id ID>
+ inline query_base
+ operator+ (ref_bind_typed<T, ID> b, const query_base& q)
+ {
+ query_base r;
+ r += b;
+ r += q;
+ return r;
+ }
+
inline query_base
operator+ (const query_base& q, const std::string& s)
{
@@ -389,16 +526,26 @@ namespace odb
template <typename T>
inline query_base
- operator+ (const std::string& s, ref_bind<T> b)
+ operator+ (val_bind<T> b, const std::string& s)
+ {
+ query_base r;
+ r += b;
+ r += s;
+ return r;
+ }
+
+ template <typename T, database_type_id ID>
+ inline query_base
+ operator+ (const std::string& s, val_bind_typed<T, ID> b)
{
query_base r (s);
r += b;
return r;
}
- template <typename T>
+ template <typename T, database_type_id ID>
inline query_base
- operator+ (val_bind<T> b, const std::string& s)
+ operator+ (val_bind_typed<T, ID> b, const std::string& s)
{
query_base r;
r += b;
@@ -408,6 +555,15 @@ namespace odb
template <typename T>
inline query_base
+ operator+ (const std::string& s, ref_bind<T> b)
+ {
+ query_base r (s);
+ r += b;
+ return r;
+ }
+
+ template <typename T>
+ inline query_base
operator+ (ref_bind<T> b, const std::string& s)
{
query_base r;
@@ -416,6 +572,25 @@ namespace odb
return r;
}
+ template <typename T, database_type_id ID>
+ inline query_base
+ operator+ (const std::string& s, ref_bind_typed<T, ID> b)
+ {
+ query_base r (s);
+ r += b;
+ return r;
+ }
+
+ template <typename T, database_type_id ID>
+ inline query_base
+ operator+ (ref_bind_typed<T, ID> b, const std::string& s)
+ {
+ query_base r;
+ r += b;
+ r += s;
+ return r;
+ }
+
LIBODB_PGSQL_EXPORT query_base
operator&& (const query_base&, const query_base&);
@@ -465,23 +640,11 @@ namespace odb
const char* conversion_;
};
- template <typename T, typename T2>
- class copy_bind: public val_bind<T>
- {
- public:
- explicit
- copy_bind (const T2& v): val_bind<T> (val), val (v) {}
-
- const T val;
- };
-
- template <typename T>
- const T&
- type_instance ();
-
template <typename T, database_type_id ID>
struct query_column: query_column_base
{
+ typedef typename decay_traits<T>::type decayed_type;
+
// Note that we keep shallow copies of the table, column, and conversion
// expression. The latter can be NULL.
//
@@ -516,16 +679,17 @@ namespace odb
//
public:
query_base
- in (const T&, const T&) const;
+ in (decayed_type, decayed_type) const;
query_base
- in (const T&, const T&, const T&) const;
+ in (decayed_type, decayed_type, decayed_type) const;
query_base
- in (const T&, const T&, const T&, const T&) const;
+ in (decayed_type, decayed_type, decayed_type, decayed_type) const;
query_base
- in (const T&, const T&, const T&, const T&, const T&) const;
+ in (decayed_type, decayed_type, decayed_type, decayed_type,
+ decayed_type) const;
template <typename I>
query_base
@@ -535,7 +699,7 @@ namespace odb
//
public:
query_base
- equal (const T& v) const
+ equal (decayed_type v) const
{
return equal (val_bind<T> (v));
}
@@ -553,8 +717,7 @@ namespace odb
query_base
equal (val_bind<T2> v) const
{
- copy_bind<T, T2> c (v.val);
- return equal (c);
+ return equal (val_bind<T> (decayed_type (v.val)));
}
query_base
@@ -567,13 +730,13 @@ namespace odb
}
friend query_base
- operator== (const query_column& c, const T& v)
+ operator== (const query_column& c, decayed_type v)
{
return c.equal (v);
}
friend query_base
- operator== (const T& v, const query_column& c)
+ operator== (decayed_type v, const query_column& c)
{
return c.equal (v);
}
@@ -620,7 +783,7 @@ namespace odb
//
public:
query_base
- unequal (const T& v) const
+ unequal (decayed_type v) const
{
return unequal (val_bind<T> (v));
}
@@ -638,8 +801,7 @@ namespace odb
query_base
unequal (val_bind<T2> v) const
{
- copy_bind<T, T2> c (v.val);
- return unequal (c);
+ return unequal (val_bind<T> (decayed_type (v.val)));
}
query_base
@@ -652,13 +814,13 @@ namespace odb
}
friend query_base
- operator!= (const query_column& c, const T& v)
+ operator!= (const query_column& c, decayed_type v)
{
return c.unequal (v);
}
friend query_base
- operator!= (const T& v, const query_column& c)
+ operator!= (decayed_type v, const query_column& c)
{
return c.unequal (v);
}
@@ -705,7 +867,7 @@ namespace odb
//
public:
query_base
- less (const T& v) const
+ less (decayed_type v) const
{
return less (val_bind<T> (v));
}
@@ -723,8 +885,7 @@ namespace odb
query_base
less (val_bind<T2> v) const
{
- copy_bind<T, T2> c (v.val);
- return less (c);
+ return less (val_bind<T> (decayed_type (v.val)));
}
query_base
@@ -737,13 +898,13 @@ namespace odb
}
friend query_base
- operator< (const query_column& c, const T& v)
+ operator< (const query_column& c, decayed_type v)
{
return c.less (v);
}
friend query_base
- operator< (const T& v, const query_column& c)
+ operator< (decayed_type v, const query_column& c)
{
return c.greater (v);
}
@@ -790,7 +951,7 @@ namespace odb
//
public:
query_base
- greater (const T& v) const
+ greater (decayed_type v) const
{
return greater (val_bind<T> (v));
}
@@ -808,8 +969,7 @@ namespace odb
query_base
greater (val_bind<T2> v) const
{
- copy_bind<T, T2> c (v.val);
- return greater (c);
+ return greater (val_bind<T> (decayed_type (v.val)));
}
query_base
@@ -822,13 +982,13 @@ namespace odb
}
friend query_base
- operator> (const query_column& c, const T& v)
+ operator> (const query_column& c, decayed_type v)
{
return c.greater (v);
}
friend query_base
- operator> (const T& v, const query_column& c)
+ operator> (decayed_type v, const query_column& c)
{
return c.less (v);
}
@@ -875,7 +1035,7 @@ namespace odb
//
public:
query_base
- less_equal (const T& v) const
+ less_equal (decayed_type v) const
{
return less_equal (val_bind<T> (v));
}
@@ -893,8 +1053,7 @@ namespace odb
query_base
less_equal (val_bind<T2> v) const
{
- copy_bind<T, T2> c (v.val);
- return less_equal (c);
+ return less_equal (val_bind<T> (decayed_type (v.val)));;
}
query_base
@@ -907,13 +1066,13 @@ namespace odb
}
friend query_base
- operator<= (const query_column& c, const T& v)
+ operator<= (const query_column& c, decayed_type v)
{
return c.less_equal (v);
}
friend query_base
- operator<= (const T& v, const query_column& c)
+ operator<= (decayed_type v, const query_column& c)
{
return c.greater_equal (v);
}
@@ -960,7 +1119,7 @@ namespace odb
//
public:
query_base
- greater_equal (const T& v) const
+ greater_equal (decayed_type v) const
{
return greater_equal (val_bind<T> (v));
}
@@ -978,8 +1137,7 @@ namespace odb
query_base
greater_equal (val_bind<T2> v) const
{
- copy_bind<T, T2> c (v.val);
- return greater_equal (c);
+ return greater_equal (val_bind<T> (decayed_type (v.val)));;
}
query_base
@@ -992,13 +1150,13 @@ namespace odb
}
friend query_base
- operator>= (const query_column& c, const T& v)
+ operator>= (const query_column& c, decayed_type v)
{
return c.greater_equal (v);
}
friend query_base
- operator>= (const T& v, const query_column& c)
+ operator>= (decayed_type v, const query_column& c)
{
return c.less_equal (v);
}
@@ -1050,7 +1208,8 @@ namespace odb
{
// We can compare columns only if we can compare their C++ types.
//
- (void) (sizeof (type_instance<T> () == type_instance<T2> ()));
+ (void) (sizeof (decay_traits<T>::instance () ==
+ decay_traits<T2>::instance ()));
query_base q (table_, column_);
q += "=";
@@ -1064,7 +1223,8 @@ namespace odb
{
// We can compare columns only if we can compare their C++ types.
//
- (void) (sizeof (type_instance<T> () != type_instance<T2> ()));
+ (void) (sizeof (decay_traits<T>::instance () !=
+ decay_traits<T2>::instance ()));
query_base q (table_, column_);
q += "!=";
@@ -1078,7 +1238,8 @@ namespace odb
{
// We can compare columns only if we can compare their C++ types.
//
- (void) (sizeof (type_instance<T> () < type_instance<T2> ()));
+ (void) (sizeof (decay_traits<T>::instance () <
+ decay_traits<T2>::instance ()));
query_base q (table_, column_);
q += "<";
@@ -1092,7 +1253,8 @@ namespace odb
{
// We can compare columns only if we can compare their C++ types.
//
- (void) (sizeof (type_instance<T> () > type_instance<T2> ()));
+ (void) (sizeof (decay_traits<T>::instance () >
+ decay_traits<T2>::instance ()));
query_base q (table_, column_);
q += ">";
@@ -1106,7 +1268,8 @@ namespace odb
{
// We can compare columns only if we can compare their C++ types.
//
- (void) (sizeof (type_instance<T> () <= type_instance<T2> ()));
+ (void) (sizeof (decay_traits<T>::instance () <=
+ decay_traits<T2>::instance ()));
query_base q (table_, column_);
q += "<=";
@@ -1120,7 +1283,8 @@ namespace odb
{
// We can compare columns only if we can compare their C++ types.
//
- (void) (sizeof (type_instance<T> () >= type_instance<T2> ()));
+ (void) (sizeof (decay_traits<T>::instance () >=
+ decay_traits<T2>::instance ()));
query_base q (table_, column_);
q += ">=";
@@ -1178,7 +1342,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_boolean>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1203,7 +1367,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_boolean>::set_image (image_, is_null, v);
@@ -1218,7 +1382,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_smallint>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1243,7 +1407,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_smallint>::set_image (image_, is_null, v);
@@ -1258,7 +1422,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_integer>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1283,7 +1447,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_integer>::set_image (image_, is_null, v);
@@ -1298,7 +1462,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_bigint>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1323,7 +1487,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_bigint>::set_image (image_, is_null, v);
@@ -1338,7 +1502,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_real>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1363,7 +1527,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_real>::set_image (image_, is_null, v);
@@ -1378,7 +1542,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_double>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1403,7 +1567,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_double>::set_image (image_, is_null, v);
@@ -1418,7 +1582,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_numeric>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1444,7 +1608,7 @@ namespace odb
private:
bool
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
std::size_t size (0), cap (buffer_.capacity ());
@@ -1463,7 +1627,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_date>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1488,7 +1652,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_date>::set_image (image_, is_null, v);
@@ -1503,7 +1667,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_time>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1528,7 +1692,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_time>::set_image (image_, is_null, v);
@@ -1543,7 +1707,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_timestamp>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1568,7 +1732,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_timestamp>::set_image (image_, is_null, v);
@@ -1583,7 +1747,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_string>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1609,7 +1773,7 @@ namespace odb
private:
bool
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
std::size_t size (0), cap (buffer_.capacity ());
@@ -1628,7 +1792,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_bytea>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1654,7 +1818,7 @@ namespace odb
private:
bool
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
std::size_t size (0), cap (buffer_.capacity ());
@@ -1673,7 +1837,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_bit>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1693,7 +1857,7 @@ namespace odb
private:
bool
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
std::size_t size (0), cap (buffer_.capacity ());
@@ -1717,7 +1881,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_varbit>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1743,7 +1907,7 @@ namespace odb
private:
bool
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
std::size_t size (0), cap (buffer_.capacity ());
@@ -1762,7 +1926,7 @@ namespace odb
template <typename T>
struct query_param_impl<T, id_uuid>: query_param
{
- query_param_impl (ref_bind<T> r) : query_param (&r.ref) {}
+ query_param_impl (ref_bind<T> r) : query_param (r.ptr ()) {}
query_param_impl (val_bind<T> v) : query_param (0) {init (v.val);}
virtual bool
@@ -1787,7 +1951,7 @@ namespace odb
private:
void
- init (const T& v)
+ init (typename decay_traits<T>::type v)
{
bool is_null (false); // Can't be NULL.
value_traits<T, id_uuid>::set_image (buffer_, is_null, v);
diff --git a/odb/pgsql/query.txx b/odb/pgsql/query.txx
index 84fd8ca..66296e9 100644
--- a/odb/pgsql/query.txx
+++ b/odb/pgsql/query.txx
@@ -26,7 +26,7 @@ namespace odb
//
template <typename T, database_type_id ID>
query_base query_column<T, ID>::
- in (const T& v1, const T& v2) const
+ in (decayed_type v1, decayed_type v2) const
{
query_base q (table_, column_);
q += "IN (";
@@ -39,7 +39,7 @@ namespace odb
template <typename T, database_type_id ID>
query_base query_column<T, ID>::
- in (const T& v1, const T& v2, const T& v3) const
+ in (decayed_type v1, decayed_type v2, decayed_type v3) const
{
query_base q (table_, column_);
q += "IN (";
@@ -54,7 +54,8 @@ namespace odb
template <typename T, database_type_id ID>
query_base query_column<T, ID>::
- in (const T& v1, const T& v2, const T& v3, const T& v4) const
+ in (decayed_type v1, decayed_type v2, decayed_type v3,
+ decayed_type v4) const
{
query_base q (table_, column_);
q += "IN (";
@@ -71,7 +72,8 @@ namespace odb
template <typename T, database_type_id ID>
query_base query_column<T, ID>::
- in (const T& v1, const T& v2, const T& v3, const T& v4, const T& v5) const
+ in (decayed_type v1, decayed_type v2, decayed_type v3, decayed_type v4,
+ decayed_type v5) const
{
query_base q (table_, column_);
q += "IN (";
diff --git a/odb/pgsql/traits.cxx b/odb/pgsql/traits.cxx
index ec220ff..6f67d07 100644
--- a/odb/pgsql/traits.cxx
+++ b/odb/pgsql/traits.cxx
@@ -15,7 +15,6 @@ namespace odb
//
// default_value_traits<std::string, id_string>
//
-
void default_value_traits<std::string, id_string>::
set_image (buffer& b,
size_t& n,
@@ -35,7 +34,6 @@ namespace odb
//
// c_string_value_traits
//
-
void c_string_value_traits::
set_image (buffer& b,
size_t& n,
@@ -53,9 +51,53 @@ namespace odb
}
//
- // default_value_traits<vector<char>, id_bytea>
+ // c_array_value_traits_base
//
+ void c_array_value_traits_base::
+ set_value (char* const& v,
+ const details::buffer& b,
+ size_t n,
+ bool is_null,
+ size_t N)
+ {
+ if (!is_null)
+ {
+ n = n < N ? n : N;
+
+ if (n != 0)
+ memcpy (v, b.data (), n);
+ }
+ else
+ n = 0;
+
+ if (n != N) // Append '\0' if there is space.
+ v[n] = '\0';
+ }
+
+ void c_array_value_traits_base::
+ set_image (details::buffer& b,
+ size_t& n,
+ bool& is_null,
+ const char* v,
+ size_t N)
+ {
+ is_null = false;
+
+ // Figure out the length. We cannot use strlen since it may
+ // not be 0-terminated (strnlen is not standard).
+ //
+ for (n = 0; n != N && v[n] != '\0'; ++n);
+
+ if (n > b.capacity ())
+ b.capacity (n);
+
+ if (n != 0)
+ memcpy (b.data (), v, n);
+ }
+ //
+ // default_value_traits<vector<char>, id_bytea>
+ //
void default_value_traits<vector<char>, id_bytea>::
set_image (details::buffer& b,
size_t& n,
@@ -77,7 +119,6 @@ namespace odb
//
// default_value_traits<vector<unsigned char>, id_bytea>
//
-
void default_value_traits<vector<unsigned char>, id_bytea>::
set_image (details::buffer& b,
size_t& n,
diff --git a/odb/pgsql/traits.hxx b/odb/pgsql/traits.hxx
index 0267527..7983571 100644
--- a/odb/pgsql/traits.hxx
+++ b/odb/pgsql/traits.hxx
@@ -403,7 +403,7 @@ namespace odb
const std::string&);
};
- // const char* specialization
+ // char*/const char* specialization
//
// Specialization for const char* which only supports initialization
// of an image from the value but not the other way around. This way
@@ -423,23 +423,114 @@ namespace odb
};
template <>
+ struct LIBODB_PGSQL_EXPORT default_value_traits<char*, id_string>:
+ c_string_value_traits {};
+
+ template <>
struct LIBODB_PGSQL_EXPORT default_value_traits<const char*, id_string>:
- c_string_value_traits
+ c_string_value_traits {};
+
+ // char[N] specializations.
+ //
+ struct LIBODB_PGSQL_EXPORT c_array_value_traits_base
{
- typedef const char* query_type;
+ static void
+ set_value (char* const& v,
+ const details::buffer& b,
+ std::size_t n,
+ bool is_null,
+ std::size_t N);
+
+ static void
+ set_image (details::buffer& b,
+ std::size_t& n,
+ bool& is_null,
+ const char* v,
+ std::size_t N);
};
template <std::size_t N>
- struct default_value_traits<char[N], id_string>: c_string_value_traits
+ struct default_value_traits<char[N], id_string>
{
+ typedef char* value_type;
typedef char query_type[N];
+ typedef details::buffer image_type;
+
+ static void
+ set_value (char* const& v,
+ const details::buffer& b,
+ std::size_t n,
+ bool is_null)
+ {
+ c_array_value_traits_base::set_value (v, b, n, is_null, N);
+ }
+
+ static void
+ set_image (details::buffer& b,
+ std::size_t& n,
+ bool& is_null,
+ const char* v)
+ {
+ c_array_value_traits_base::set_image (b, n, is_null, v, N);
+ }
};
+ // std::array<char, N> (string) specialization.
+ //
+#ifdef ODB_CXX11
template <std::size_t N>
- struct default_value_traits<const char[N], id_string>:
- c_string_value_traits
+ struct default_value_traits<std::array<char, N>, id_string>
{
- typedef const char query_type[N];
+ typedef std::array<char, N> value_type;
+ typedef std::array<char, N> query_type;
+ typedef details::buffer image_type;
+
+ static void
+ set_value (value_type& v,
+ const details::buffer& b,
+ std::size_t n,
+ bool is_null)
+ {
+ c_array_value_traits_base::set_value (v.data (), b, n, is_null, N);
+ }
+
+ static void
+ set_image (details::buffer& b,
+ std::size_t& n,
+ bool& is_null,
+ const value_type& v)
+ {
+ c_array_value_traits_base::set_image (b, n, is_null, v.data (), N);
+ }
+ };
+#endif
+
+ // char specialization.
+ //
+ template <>
+ struct LIBODB_PGSQL_EXPORT default_value_traits<char, id_string>
+ {
+ typedef char value_type;
+ typedef char query_type;
+ typedef details::buffer image_type;
+
+ static void
+ set_value (char& v,
+ const details::buffer& b,
+ std::size_t n,
+ bool is_null)
+ {
+ c_array_value_traits_base::set_value (&v, b, n, is_null, 1);
+ }
+
+ static void
+ set_image (details::buffer& b,
+ std::size_t& n,
+ bool& is_null,
+ char v)
+ {
+ c_array_value_traits_base::set_image (b, n, is_null, &v, 1);
+ }
};
// std::vector<char> (buffer) specialization.
@@ -789,6 +880,12 @@ namespace odb
};
template <>
+ struct default_type_traits<char*>
+ {
+ static const database_type_id db_type_id = id_string;
+ };
+
+ template <>
struct default_type_traits<const char*>
{
static const database_type_id db_type_id = id_string;
@@ -800,14 +897,20 @@ namespace odb
static const database_type_id db_type_id = id_string;
};
- template <std::size_t N>
- struct default_type_traits<const char[N]>
+ template <>
+ struct default_type_traits<char>
{
static const database_type_id db_type_id = id_string;
};
// Binary types.
//
+ template <std::size_t N>
+ struct default_type_traits<unsigned char[N]>
+ {
+ static const database_type_id db_type_id = id_bytea;
+ };
+
template <>
struct default_type_traits<std::vector<char> >
{