store id in DB

shared/src/values/DnaDB.cpp

@@ -0,0 +1,69 @@
+#include "values/DnaDB.hpp"
+
+#include <sql.hpp>
+
+
+
+void DnaDB::init(const char * db_name)
+{
+  sql::init();
+  int res = sql::open(db_name, &db);
+
+  constexpr char create_user_table[] = "CREATE TABLE IF NOT EXISTS user_table ( ID INTEGER PRIMARY KEY, USER_ID INTEGER, MAX_GENERATION INTEGER);";
+  res = sql::exec(db, create_user_table, nullptr, nullptr, nullptr);
+}
+
+void DnaDB::deinit()
+{
+  sql::close(db);
+  sql::shutdown();
+}
+
+std::vector<int64_t> DnaDB::getUserIds()
+{
+  constexpr char sql[] = "SELECT USER_ID FROM user_table;";
+  sqlite3_stmt *stmt;
+  sql::prepare_v2(db, sql, -1, &stmt, nullptr);
+  std::vector<int64_t> ids;
+  while (sql::step(stmt) != SQL_DONE)
+  {
+    int64_t id = sql::column_int64(stmt, 0);
+    ids.push_back(id);
+  }
+  sql::finalize(stmt);
+  return ids;
+}
+
+int DnaDB::insertUser(int64_t id, int64_t max_gen){
+  constexpr char sql[] = "INSERT INTO user_table (USER_ID, MAX_GENERATION) VALUES (?,?);";
+  sqlite3_stmt *stmt;
+  sql::prepare_v2(db, sql, -1, &stmt, nullptr);
+  sql::bind_int64(stmt, 1, id);
+  sql::bind_int64(stmt, 2, max_gen);
+  int ret = sql::step(stmt);
+  sql::finalize(stmt);
+  return ret;
+}
+
+int DnaDB::updateUser(int64_t id, int64_t max_gen){
+  constexpr char sql[] = "UPDATE user_table SET MAX_GENERATION = ? WHERE USER_ID = ?;";
+  sqlite3_stmt *stmt;
+  sql::prepare_v2(db, sql, -1, &stmt, nullptr);
+  sql::bind_int64(stmt, 1, max_gen);
+  sql::bind_int64(stmt, 2, id);
+  int ret = sql::step(stmt);
+  sql::finalize(stmt);
+  return ret;
+}
+
+void DnaDB::getGenerations()
+{
+}
+
+void DnaDB::getLikesForGeneration()
+{
+}
+
+void DnaDB::getVectorForGeneration()
+{
+}