implemented prepared statement for postgres and sqlite

backends/postgres/src/postgres_parameter_binder.cpp

@@ -0,0 +1,142 @@
+#include "postgres_parameter_binder.h"
+
+namespace matador::backends::postgres {
+
+namespace detail {
+
+template < class T >
+void bind_value(std::vector<std::string> &strings, std::vector<const char*> &params, size_t index, T &x)
+{
+  strings[index] = std::to_string(x);
+  params[index] = strings[index].c_str();
+}
+
+template <>
+void bind_value(std::vector<std::string> &strings, std::vector<const char*> &params, size_t index, char &x)
+{
+  strings[index] = std::to_string(x);
+  params[index] = strings[index].data();
+}
+
+template <>
+void bind_value(std::vector<std::string> &strings, std::vector<const char*> &params, size_t index, unsigned char &x)
+{
+  strings[index] = std::to_string(x);
+  params[index] = strings[index].data();
+}
+
+//template <>
+//void bind_value(std::vector<std::string> &strings, std::vector<const char*> &params, size_t &index, const matador::date &x)
+//{
+//  strings[index] = matador::to_string(x, date_format::ISO8601);
+//  params[index] = strings[index].c_str();
+//  ++index;
+//}
+//
+//template <>
+//void bind_value(std::vector<std::string> &strings, std::vector<const char*> &params, size_t &index, const matador::time &x)
+//{
+//  strings[index] = matador::to_string(x, "%Y-%m-%d %T.%f");
+//  params[index] = strings[index].c_str();
+//  ++index;
+//}
+
+}
+
+postgres_parameter_binder::postgres_parameter_binder(size_t size)
+: strings_(size)
+, params_(size)
+{}
+
+void postgres_parameter_binder::bind(size_t pos, char i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, short i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, int i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, long i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, long long int i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, unsigned char i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, unsigned short i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, unsigned int i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, unsigned long i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, unsigned long long int i)
+{
+  detail::bind_value(strings_, params_, pos, i);
+}
+
+void postgres_parameter_binder::bind(size_t pos, bool b)
+{
+  detail::bind_value(strings_, params_, pos, b);
+}
+
+void postgres_parameter_binder::bind(size_t pos, float d)
+{
+  detail::bind_value(strings_, params_, pos, d);
+}
+
+void postgres_parameter_binder::bind(size_t pos, double d)
+{
+  detail::bind_value(strings_, params_, pos, d);
+}
+
+void postgres_parameter_binder::bind(size_t pos, const char *str)
+{
+  params_[pos] = str;
+}
+
+void postgres_parameter_binder::bind(size_t pos, const char *str, size_t size)
+{
+  params_[pos] = str;
+}
+
+void postgres_parameter_binder::bind(size_t pos, const std::string &str)
+{
+  strings_[pos] = str;
+  params_[pos] = strings_[pos].c_str();
+}
+
+void postgres_parameter_binder::bind(size_t pos, const std::string &str, size_t size)
+{
+  bind(pos, str);
+}
+
+const std::vector<const char *> &postgres_parameter_binder::params() const
+{
+  return params_;
+}
+
+}