pica/database/mysql/statement.cpp

48 lines
1.5 KiB
C++

#include "statement.h"
#include <cstring>
static uint64_t TIME_LENGTH = sizeof(MYSQL_TIME);
MySQL::Statement::Statement(MYSQL* connection, const char* statement):
stmt(mysql_stmt_init(connection)),
param(),
lengths()
{
int result = mysql_stmt_prepare(stmt.get(), statement, strlen(statement));
if (result != 0)
throw std::runtime_error(std::string("Error preparing statement: ") + mysql_stmt_error(stmt.get()));
}
void MySQL::Statement::bind(void* value, enum_field_types type) {
MYSQL_BIND& result = param.emplace_back();
std::memset(&result, 0, sizeof(result));
result.buffer_type = type;
result.buffer = value;
switch (type) {
case MYSQL_TYPE_STRING:
case MYSQL_TYPE_VAR_STRING:
result.length = &lengths.emplace_back(strlen(static_cast<char*>(value)));
break;
case MYSQL_TYPE_DATE:
result.length = &TIME_LENGTH;
break;
default:
lengths.pop_back();
throw std::runtime_error("Type: " + std::to_string(type) + " is not yet supported in bind");
break;
}
}
void MySQL::Statement::execute() {
int result = mysql_stmt_bind_param(stmt.get(), param.data());
if (result != 0)
throw std::runtime_error(std::string("Error binding statement: ") + mysql_stmt_error(stmt.get()));
result = mysql_stmt_execute(stmt.get());
if (result != 0)
throw std::runtime_error(std::string("Error executing statement: ") + mysql_stmt_error(stmt.get()));
}