UniParameterType.cxx

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// ----------------------------------------------------------------------
//                    UniParameterType cxx file
//                      Generated 05-06-2023
// ----------------------------------------------------------------------
 
#include "UniParameterType.h"
 
#include "TSQLServer.h"
#include "TSQLStatement.h"
 
#include <iostream>
using namespace std;
 
/* GENERATED CLASS MEMBERS (SHOULD NOT BE CHANGED MANUALLY) */
// -----   Constructor with database connection   -----------------------
UniParameterType::UniParameterType(UniConnection* db_connect, int type_id, TString type_name)
{
    connectionDB = db_connect;
 
    i_type_id = type_id;
    str_type_name = type_name;
}
 
// -----   Destructor   -------------------------------------------------
UniParameterType::~UniParameterType()
{
    if (connectionDB)
        delete connectionDB;
}
 
// -----   Creating new parameter type in the database  ---------------------------
UniParameterType* UniParameterType::CreateParameterType(TString type_name)
{
    UniConnection* connDb = UniConnection::Open();
    if (connDb == nullptr)
        return nullptr;
 
    TSQLServer* db_server = connDb->GetSQLServer();
 
    TString sql = TString::Format("insert into parameter_type(type_name) "
                                  "values ($1)");
    TSQLStatement* stmt = db_server->Statement(sql);
 
    stmt->NextIteration();
    stmt->SetString(0, type_name);
 
    // inserting new parameter type to the Database
    if (!stmt->Process()) {
        cout << "ERROR: inserting new parameter type to the Database has been failed" << endl;
        delete stmt;
        delete connDb;
        return nullptr;
    }
 
    delete stmt;
 
    // getting last inserted ID
    int type_id;
    TSQLStatement* stmt_last =
        db_server->Statement("SELECT currval(pg_get_serial_sequence('parameter_type','type_id'))");
 
    // process getting last id
    if (stmt_last->Process()) {
        // store result of statement in buffer
        stmt_last->StoreResult();
 
        // if there is no last id then exit with error
        if (!stmt_last->NextResultRow()) {
            cout << "ERROR: no last ID in DB!" << endl;
            delete stmt_last;
            return nullptr;
        } else {
            type_id = stmt_last->GetInt(0);
            delete stmt_last;
        }
    } else {
        cout << "ERROR: getting last ID has been failed!" << endl;
        delete stmt_last;
        return nullptr;
    }
 
    int tmp_type_id;
    tmp_type_id = type_id;
    TString tmp_type_name;
    tmp_type_name = type_name;
 
    return new UniParameterType(connDb, tmp_type_id, tmp_type_name);
}
 
// -----  Get parameter type from the database  ---------------------------
UniParameterType* UniParameterType::GetParameterType(int type_id)
{
    UniConnection* connDb = UniConnection::Open();
    if (connDb == nullptr)
        return nullptr;
 
    TSQLServer* db_server = connDb->GetSQLServer();
 
    TString sql = TString::Format("select type_id, type_name "
                                  "from parameter_type "
                                  "where type_id = %d",
                                  type_id);
    TSQLStatement* stmt = db_server->Statement(sql);
 
    // get parameter type from the database
    if (!stmt->Process()) {
        cout << "ERROR: getting parameter type from the database has been failed" << endl;
 
        delete stmt;
        delete connDb;
        return nullptr;
    }
 
    // store result of statement in buffer
    stmt->StoreResult();
 
    // extract row
    if (!stmt->NextResultRow()) {
        cout << "ERROR: parameter type was not found in the database" << endl;
 
        delete stmt;
        delete connDb;
        return nullptr;
    }
 
    int tmp_type_id;
    tmp_type_id = stmt->GetInt(0);
    TString tmp_type_name;
    tmp_type_name = stmt->GetString(1);
 
    delete stmt;
 
    return new UniParameterType(connDb, tmp_type_id, tmp_type_name);
}
 
// -----  Check parameter type exists in the database  ---------------------------
int UniParameterType::CheckParameterTypeExists(int type_id)
{
    UniConnection* connDb = UniConnection::Open();
    if (connDb == nullptr)
        return -1;
 
    TSQLServer* db_server = connDb->GetSQLServer();
 
    TString sql = TString::Format("select 1 "
                                  "from parameter_type "
                                  "where type_id = %d",
                                  type_id);
    TSQLStatement* stmt = db_server->Statement(sql);
 
    // get parameter type from the database
    if (!stmt->Process()) {
        cout << "ERROR: getting parameter type from the database has been failed" << endl;
 
        delete stmt;
        delete connDb;
        return -2;
    }
 
    // store result of statement in buffer
    stmt->StoreResult();
 
    // extract row
    if (!stmt->NextResultRow()) {
        delete stmt;
        delete connDb;
        return 0;
    }
 
    delete stmt;
    delete connDb;
 
    return 1;
}
 
// -----  Delete parameter type from the database  ---------------------------
int UniParameterType::DeleteParameterType(int type_id)
{
    UniConnection* connDb = UniConnection::Open();
    if (connDb == nullptr)
        return -1;
 
    TSQLServer* db_server = connDb->GetSQLServer();
 
    TString sql = TString::Format("delete from parameter_type "
                                  "where type_id = $1");
    TSQLStatement* stmt = db_server->Statement(sql);
 
    stmt->NextIteration();
    stmt->SetInt(0, type_id);
 
    // delete parameter type from the dataBase
    if (!stmt->Process()) {
        cout << "ERROR: deleting parameter type from the dataBase has been failed" << endl;
 
        delete stmt;
        delete connDb;
        return -2;
    }
 
    delete stmt;
    delete connDb;
    return 0;
}
 
// -----  Print all 'parameter types'  ---------------------------------
int UniParameterType::PrintAll()
{
    UniConnection* connDb = UniConnection::Open();
    if (connDb == nullptr)
        return -1;
 
    TSQLServer* db_server = connDb->GetSQLServer();
 
    TString sql = TString::Format("select type_id, type_name "
                                  "from parameter_type");
    TSQLStatement* stmt = db_server->Statement(sql);
 
    // get all 'parameter types' from the database
    if (!stmt->Process()) {
        cout << "ERROR: getting all 'parameter types' from the dataBase has been failed" << endl;
 
        delete stmt;
        delete connDb;
        return -2;
    }
 
    // store result of statement in buffer
    stmt->StoreResult();
 
    // print rows
    cout << "Table 'parameter_type':" << endl;
    while (stmt->NextResultRow()) {
        cout << "type_id: ";
        cout << (stmt->GetInt(0));
        cout << ", type_name: ";
        cout << (stmt->GetString(1));
        cout << "." << endl;
    }
 
    delete stmt;
    delete connDb;
 
    return 0;
}
 
// Setters functions
int UniParameterType::SetTypeName(TString type_name)
{
    if (!connectionDB) {
        cout << "CRITICAL ERROR: Connection object is null" << endl;
        return -1;
    }
 
    TSQLServer* db_server = connectionDB->GetSQLServer();
 
    TString sql = TString::Format("update parameter_type "
                                  "set type_name = $1 "
                                  "where type_id = $2");
    TSQLStatement* stmt = db_server->Statement(sql);
 
    stmt->NextIteration();
    stmt->SetString(0, type_name);
    stmt->SetInt(1, i_type_id);
 
    // write new value to the database
    if (!stmt->Process()) {
        cout << "ERROR: updating information about parameter type has been failed" << endl;
 
        delete stmt;
        return -2;
    }
 
    str_type_name = type_name;
 
    delete stmt;
    return 0;
}
 
// -----  Print current parameter type  ---------------------------------------
void UniParameterType::Print()
{
    cout << "Table 'parameter_type'";
    cout << ". type_id: " << i_type_id << ". type_name: " << str_type_name << endl;
 
    return;
}
/* END OF GENERATED CLASS PART (SHOULD NOT BE CHANGED MANUALLY) */