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Basic support for update in Crud implementation, error reporting and transfering data to modified set is still missing.

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This commit is contained in:
eelke 2018-02-05 21:42:54 +01:00
parent 3fb32f1200
commit d626c19e14
15 changed files with 530 additions and 83 deletions
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43
pgsql/Pgsql_Params.cpp
View file

@ -31,13 +31,16 @@ Params::Params(Params&& rhs)
, m_paramValues(std::move(rhs.m_paramValues))
, m_paramLengths(std::move(rhs.m_paramLengths))
, m_paramFormats(std::move(rhs.m_paramFormats))
{}
{
rhs.m_paramValues.clear(); // just in case it was copied instead of moved
}
Params& Params::operator=(Params&& rhs)
{
if (&rhs != this) {
m_paramTypes = std::move(rhs.m_paramTypes);
m_paramValues = std::move(rhs.m_paramValues);
rhs.m_paramValues.clear(); // just in case it was copied instead of moved
m_paramLengths = std::move(rhs.m_paramLengths);
m_paramFormats = std::move(rhs.m_paramFormats);
}
@ -67,14 +70,31 @@ void Params::add(const QString &s, Oid oid)
addText(p, oid);
}
void Params::addBinary(const char *data, int length, Oid oid)
void Params::add(const char *data, Oid oid)
{
char * p = nullptr;
int len = 0;
if (data) {
len = std::strlen(data);
p = new char[len+1];
std::memcpy(p, data, len);
p[len] = 0;
}
m_paramTypes.push_back(oid);
m_paramValues.push_back(data);
m_paramLengths.push_back(length);
m_paramFormats.push_back(1);
m_paramValues.push_back(p);
m_paramLengths.push_back(len);
m_paramFormats.push_back(0);
}
//void Params::addBinary(const char *data, int length, Oid oid)
//{
// m_paramTypes.push_back(oid);
// m_paramValues.push_back(data);
// m_paramLengths.push_back(length);
// m_paramFormats.push_back(1);
//}
void Params::clear()
{
m_paramTypes.clear();
@ -89,9 +109,14 @@ void Params::copyValues(const t_paramValues &r)
const int n = m_paramTypes.size();
m_paramValues.reserve(n);
for (int i = 0; i < n; ++i) {
const int len = m_paramLengths[i];
char * p = new char[len];
std::memcpy(p, r[i], len);
m_paramValues.push_back(p);
if (r[i]) {
const int len = m_paramLengths[i];
char * p = new char[len+1];
std::memcpy(p, r[i], len+1);
m_paramValues.push_back(p);
}
else {
m_paramValues.push_back(nullptr);
}
}
}

14
pgsql/Pgsql_Params.h
View file

@ -18,13 +18,9 @@ namespace Pgsql {
~Params();
/** \brief Add a parameter to the list.
*
* The class takes ownership of data and will try to delete[] it.
*/
void addText(const char *data, Oid oid=VARCHAROID);
void add(const QString &s, Oid oid=VARCHAROID);
void addBinary(const char *data, int length, Oid oid);
void add(const char *data, Oid oid=VARCHAROID);
//void addBinary(const char *data, int length, Oid oid);
void clear();
bool empty() const { return m_paramTypes.empty(); }
@ -51,6 +47,12 @@ namespace Pgsql {
t_paramValues m_paramValues;
std::vector<int> m_paramLengths; ///< postgresql ignores lengths for text parameters but we will it anyway for efficient copying
std::vector<int> m_paramFormats;
/** \brief Add a parameter to the list.
*
* The class takes ownership of data and will try to delete[] it.
*/
void addText(const char *data, Oid oid=VARCHAROID);
};
} // end namespace Pgsql