readtest/source/sql.d

module source.sql;

import singlog;
import std.conv;
import arsd.sqlite;

import source.dblite;

int sqlAddNewTheme(string topic) {
    try {
        auto queryResult = dblite.sql(
            "insert into topics (name) values (?) returning id",
            topic
        );
        if (!queryResult.empty())
            return queryResult.front()["id"].to!int;
    } catch (Exception e) {
        log.e("Не удалось выполнить запрос к БД. " ~ e.msg);
    }

    return 0;
}

int sqlAddNewQuestion(
    int topic_id,
    int question_number,
    string question_text,
    bool question_has_picture,
    ubyte[] question_picture,
    string question_picture_name
    ) {
    SqliteResult queryResult;
    try {
        if (question_has_picture)
            queryResult = dblite.sql(
                "insert into questions (topic_id, number, text, picture_name, picture)
                    values (?, ?, ?, ?, ?) returning id",
                topic_id, question_number, question_text, question_picture_name, question_picture
            );
        else
            queryResult = dblite.sql(
                "insert into questions (topic_id, number, text) values (?, ?, ?) returning id",
                topic_id, question_number, question_text
            );
        
        if (!queryResult.empty())
            return queryResult.front()["id"].to!int;
    } catch (Exception e) {
        log.e("Не удалось выполнить запрос к БД. " ~ e.msg);
    }

    return 0;
}

int sqlAddNewAnswer(int question_id, int answer_number, string answer_text, int answer_truth) {
    try {
        auto queryResult = dblite.sql(
            "insert into answers (question_id, number, text, truth) values (?, ?, ?, ?) returning id",
            question_id, answer_number, answer_text, answer_truth
        );
        if (!queryResult.empty())
            return queryResult.front()["id"].to!int;
    } catch (Exception e) {
        log.e("Не удалось выполнить запрос к БД. " ~ e.msg);
    }

    return 0;
}