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authorlouiz <louiz@louiz.org>2017-06-14 11:11:17 +0200
committerlouiz <louiz@louiz.org>2017-06-14 11:11:17 +0200
commit5ba66c33519567f9f4e806a9ab41c3c94d93237f (patch)
tree4b51bece4f4dec660e0c48297404a5da51aee4ec /src/database
parentceb496369f834ffa055eb5b7ffc273b2a21f9b9a (diff)
parent2677ac42e8d2e1cf162fec773a9acb453bef8b9b (diff)
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Merge branch 'orm' into 'master'
Pure c++ sqlite3 ORM Closes #3271 See merge request !11
Diffstat (limited to 'src/database')
-rw-r--r--src/database/column.hpp17
-rw-r--r--src/database/count_query.hpp35
-rw-r--r--src/database/database.cpp204
-rw-r--r--src/database/database.hpp159
-rw-r--r--src/database/insert_query.hpp129
-rw-r--r--src/database/query.cpp11
-rw-r--r--src/database/query.hpp48
-rw-r--r--src/database/row.hpp75
-rw-r--r--src/database/select_query.hpp153
-rw-r--r--src/database/statement.hpp35
-rw-r--r--src/database/table.hpp84
-rw-r--r--src/database/type_to_sql.cpp8
-rw-r--r--src/database/type_to_sql.hpp13
13 files changed, 826 insertions, 145 deletions
diff --git a/src/database/column.hpp b/src/database/column.hpp
new file mode 100644
index 0000000..22f4254
--- /dev/null
+++ b/src/database/column.hpp
@@ -0,0 +1,17 @@
+#pragma once
+
+#include <cstdint>
+
+template <typename T>
+struct Column
+{
+ Column(T default_value):
+ value{default_value} {}
+ Column():
+ value{} {}
+ using real_type = T;
+ T value{};
+};
+
+struct Id: Column<std::size_t> { static constexpr auto name = "id_";
+ static constexpr auto options = "PRIMARY KEY AUTOINCREMENT"; };
diff --git a/src/database/count_query.hpp b/src/database/count_query.hpp
new file mode 100644
index 0000000..b7bbf51
--- /dev/null
+++ b/src/database/count_query.hpp
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <database/query.hpp>
+#include <database/table.hpp>
+
+#include <string>
+
+#include <sqlite3.h>
+
+struct CountQuery: public Query
+{
+ CountQuery(std::string name):
+ Query("SELECT count(*) FROM ")
+ {
+ this->body += std::move(name);
+ }
+
+ int64_t execute(sqlite3* db)
+ {
+ auto statement = this->prepare(db);
+ int64_t res = 0;
+ if (sqlite3_step(statement.get()) == SQLITE_ROW)
+ res = sqlite3_column_int64(statement.get(), 0);
+ else
+ {
+ log_error("Count request didn’t return a result");
+ return 0;
+ }
+ if (sqlite3_step(statement.get()) != SQLITE_DONE)
+ log_warning("Count request returned more than one result.");
+
+ log_debug("Returning count: ", res);
+ return res;
+ }
+};
diff --git a/src/database/database.cpp b/src/database/database.cpp
index 9f310da..1738a69 100644
--- a/src/database/database.cpp
+++ b/src/database/database.cpp
@@ -2,175 +2,166 @@
#ifdef USE_DATABASE
#include <database/database.hpp>
-#include <logger/logger.hpp>
-#include <irc/iid.hpp>
#include <uuid/uuid.h>
#include <utils/get_first_non_empty.hpp>
#include <utils/time.hpp>
-using namespace std::string_literals;
+#include <sqlite3.h>
-std::unique_ptr<db::BibouDB> Database::db;
+sqlite3* Database::db;
+Database::MucLogLineTable Database::muc_log_lines("MucLogLine_");
+Database::GlobalOptionsTable Database::global_options("GlobalOptions_");
+Database::IrcServerOptionsTable Database::irc_server_options("IrcServerOptions_");
+Database::IrcChannelOptionsTable Database::irc_channel_options("IrcChannelOptions_");
-void Database::open(const std::string& filename, const std::string& db_type)
+void Database::open(const std::string& filename)
{
- try
- {
- auto new_db = std::make_unique<db::BibouDB>(db_type,
- "database="s + filename);
- if (new_db->needsUpgrade())
- new_db->upgrade();
- Database::db = std::move(new_db);
- } catch (const litesql::DatabaseError& e) {
- log_error("Failed to open database ", filename, ". ", e.what());
- throw;
- }
+ auto res = sqlite3_open_v2(filename.data(), &Database::db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, nullptr);
+ log_debug("open: ", res);
+ Database::muc_log_lines.create(Database::db);
+ Database::global_options.create(Database::db);
+ Database::irc_server_options.create(Database::db);
+ Database::irc_channel_options.create(Database::db);
}
-void Database::set_verbose(const bool val)
-{
- Database::db->verbose = val;
-}
-db::GlobalOptions Database::get_global_options(const std::string& owner)
+Database::GlobalOptions Database::get_global_options(const std::string& owner)
{
- try {
- auto options = litesql::select<db::GlobalOptions>(*Database::db,
- db::GlobalOptions::Owner == owner).one();
- return options;
- } catch (const litesql::NotFound& e) {
- db::GlobalOptions options(*Database::db);
- options.owner = owner;
- return options;
- }
+ auto request = Database::global_options.select().where() << Owner{} << "=" << owner;
+
+ Database::GlobalOptions options{Database::global_options.get_name()};
+ auto result = request.execute(Database::db);
+ if (result.size() == 1)
+ options = result.front();
+ else
+ options.col<Owner>() = owner;
+ return options;
}
-db::IrcServerOptions Database::get_irc_server_options(const std::string& owner,
- const std::string& server)
+Database::IrcServerOptions Database::get_irc_server_options(const std::string& owner, const std::string& server)
{
- try {
- auto options = litesql::select<db::IrcServerOptions>(*Database::db,
- db::IrcServerOptions::Owner == owner &&
- db::IrcServerOptions::Server == server).one();
- return options;
- } catch (const litesql::NotFound& e) {
- db::IrcServerOptions options(*Database::db);
- options.owner = owner;
- options.server = server;
- // options.update();
- return options;
- }
+ auto request = Database::irc_server_options.select().where() << Owner{} << "=" << owner << " and " << Server{} << "=" << server;
+
+ Database::IrcServerOptions options{Database::irc_server_options.get_name()};
+ auto result = request.execute(Database::db);
+ if (result.size() == 1)
+ options = result.front();
+ else
+ {
+ options.col<Owner>() = owner;
+ options.col<Server>() = server;
+ }
+ return options;
}
-db::IrcChannelOptions Database::get_irc_channel_options(const std::string& owner,
- const std::string& server,
- const std::string& channel)
+Database::IrcChannelOptions Database::get_irc_channel_options(const std::string& owner, const std::string& server, const std::string& channel)
{
- try {
- auto options = litesql::select<db::IrcChannelOptions>(*Database::db,
- db::IrcChannelOptions::Owner == owner &&
- db::IrcChannelOptions::Server == server &&
- db::IrcChannelOptions::Channel == channel).one();
- return options;
- } catch (const litesql::NotFound& e) {
- db::IrcChannelOptions options(*Database::db);
- options.owner = owner;
- options.server = server;
- options.channel = channel;
- return options;
- }
+ auto request = Database::irc_channel_options.select().where() << Owner{} << "=" << owner <<\
+ " and " << Server{} << "=" << server <<\
+ " and " << Channel{} << "=" << channel;
+ Database::IrcChannelOptions options{Database::irc_channel_options.get_name()};
+ auto result = request.execute(Database::db);
+ if (result.size() == 1)
+ options = result.front();
+ else
+ {
+ options.col<Owner>() = owner;
+ options.col<Server>() = server;
+ options.col<Channel>() = channel;
+ }
+ return options;
}
-db::IrcChannelOptions Database::get_irc_channel_options_with_server_default(const std::string& owner,
- const std::string& server,
- const std::string& channel)
+Database::IrcChannelOptions Database::get_irc_channel_options_with_server_default(const std::string& owner, const std::string& server,
+ const std::string& channel)
{
auto coptions = Database::get_irc_channel_options(owner, server, channel);
auto soptions = Database::get_irc_server_options(owner, server);
- coptions.encodingIn = get_first_non_empty(coptions.encodingIn.value(),
- soptions.encodingIn.value());
- coptions.encodingOut = get_first_non_empty(coptions.encodingOut.value(),
- soptions.encodingOut.value());
+ coptions.col<EncodingIn>() = get_first_non_empty(coptions.col<EncodingIn>(),
+ soptions.col<EncodingIn>());
+ coptions.col<EncodingOut>() = get_first_non_empty(coptions.col<EncodingOut>(),
+ soptions.col<EncodingOut>());
- coptions.maxHistoryLength = get_first_non_empty(coptions.maxHistoryLength.value(),
- soptions.maxHistoryLength.value());
+ coptions.col<MaxHistoryLength>() = get_first_non_empty(coptions.col<MaxHistoryLength>(),
+ soptions.col<MaxHistoryLength>());
return coptions;
}
-db::IrcChannelOptions Database::get_irc_channel_options_with_server_and_global_default(const std::string& owner,
- const std::string& server,
- const std::string& channel)
+Database::IrcChannelOptions Database::get_irc_channel_options_with_server_and_global_default(const std::string& owner, const std::string& server, const std::string& channel)
{
auto coptions = Database::get_irc_channel_options(owner, server, channel);
auto soptions = Database::get_irc_server_options(owner, server);
auto goptions = Database::get_global_options(owner);
- coptions.encodingIn = get_first_non_empty(coptions.encodingIn.value(),
- soptions.encodingIn.value());
- coptions.encodingOut = get_first_non_empty(coptions.encodingOut.value(),
- soptions.encodingOut.value());
+ coptions.col<EncodingIn>() = get_first_non_empty(coptions.col<EncodingIn>(),
+ soptions.col<EncodingIn>());
- coptions.maxHistoryLength = get_first_non_empty(coptions.maxHistoryLength.value(),
- soptions.maxHistoryLength.value(),
- goptions.maxHistoryLength.value());
+ coptions.col<EncodingOut>() = get_first_non_empty(coptions.col<EncodingOut>(),
+ soptions.col<EncodingOut>());
+
+ coptions.col<MaxHistoryLength>() = get_first_non_empty(coptions.col<MaxHistoryLength>(),
+ soptions.col<MaxHistoryLength>(),
+ goptions.col<MaxHistoryLength>());
return coptions;
}
-std::string Database::store_muc_message(const std::string& owner, const Iid& iid,
- Database::time_point date,
- const std::string& body,
- const std::string& nick)
+std::string Database::store_muc_message(const std::string& owner, const std::string& chan_name,
+ const std::string& server_name, Database::time_point date,
+ const std::string& body, const std::string& nick)
{
- db::MucLogLine line(*Database::db);
+ auto line = Database::muc_log_lines.row();
auto uuid = Database::gen_uuid();
- line.uuid = uuid;
- line.owner = owner;
- line.ircChanName = iid.get_local();
- line.ircServerName = iid.get_server();
- line.date = std::chrono::duration_cast<std::chrono::seconds>(date.time_since_epoch()).count();
- line.body = body;
- line.nick = nick;
+ line.col<Uuid>() = uuid;
+ line.col<Owner>() = owner;
+ line.col<IrcChanName>() = chan_name;
+ line.col<IrcServerName>() = server_name;
+ line.col<Date>() = std::chrono::duration_cast<std::chrono::seconds>(date.time_since_epoch()).count();
+ line.col<Body>() = body;
+ line.col<Nick>() = nick;
- line.update();
+ line.save(Database::db);
return uuid;
}
-std::vector<db::MucLogLine> Database::get_muc_logs(const std::string& owner, const std::string& chan_name, const std::string& server,
+std::vector<Database::MucLogLine> Database::get_muc_logs(const std::string& owner, const std::string& chan_name, const std::string& server,
int limit, const std::string& start, const std::string& end)
{
- auto request = litesql::select<db::MucLogLine>(*Database::db,
- db::MucLogLine::Owner == owner &&
- db::MucLogLine::IrcChanName == chan_name &&
- db::MucLogLine::IrcServerName == server);
- request.orderBy(db::MucLogLine::Id, false);
+ auto request = Database::muc_log_lines.select().where() << Database::Owner{} << "=" << owner << \
+ " and " << Database::IrcChanName{} << "=" << chan_name << \
+ " and " << Database::IrcServerName{} << "=" << server;
- if (limit >= 0)
- request.limit(limit);
if (!start.empty())
{
const auto start_time = utils::parse_datetime(start);
if (start_time != -1)
- request.where(db::MucLogLine::Date >= start_time);
+ request << " and " << Database::Date{} << ">=" << start_time;
}
if (!end.empty())
{
const auto end_time = utils::parse_datetime(end);
if (end_time != -1)
- request.where(db::MucLogLine::Date <= end_time);
+ request << " and " << Database::Date{} << "<=" << end_time;
}
- const auto& res = request.all();
- return {res.crbegin(), res.crend()};
+
+ request.order_by() << Id{} << " DESC ";
+
+ if (limit >= 0)
+ request.limit() << limit;
+
+ auto result = request.execute(Database::db);
+
+ return {result.crbegin(), result.crend()};
}
void Database::close()
{
- Database::db.reset(nullptr);
+ sqlite3_close_v2(Database::db);
}
std::string Database::gen_uuid()
@@ -182,5 +173,4 @@ std::string Database::gen_uuid()
return uuid_str;
}
-
-#endif
+#endif \ No newline at end of file
diff --git a/src/database/database.hpp b/src/database/database.hpp
index b08a175..1ad62fc 100644
--- a/src/database/database.hpp
+++ b/src/database/database.hpp
@@ -1,22 +1,107 @@
#pragma once
-
#include <biboumi.h>
#ifdef USE_DATABASE
-#include "biboudb.hpp"
-
-#include <memory>
+#include <database/table.hpp>
+#include <database/column.hpp>
+#include <database/count_query.hpp>
-#include <litesql.hpp>
#include <chrono>
+#include <string>
+
+#include <memory>
-class Iid;
class Database
{
-public:
+ public:
using time_point = std::chrono::system_clock::time_point;
+
+ struct Uuid: Column<std::string> { static constexpr auto name = "uuid_";
+ static constexpr auto options = ""; };
+
+ struct Owner: Column<std::string> { static constexpr auto name = "owner_";
+ static constexpr auto options = ""; };
+
+ struct IrcChanName: Column<std::string> { static constexpr auto name = "ircChanName_";
+ static constexpr auto options = ""; };
+
+ struct Channel: Column<std::string> { static constexpr auto name = "channel_";
+ static constexpr auto options = ""; };
+
+ struct IrcServerName: Column<std::string> { static constexpr auto name = "ircServerName_";
+ static constexpr auto options = ""; };
+
+ struct Server: Column<std::string> { static constexpr auto name = "server_";
+ static constexpr auto options = ""; };
+
+ struct Date: Column<time_point::rep> { static constexpr auto name = "date_";
+ static constexpr auto options = ""; };
+
+ struct Body: Column<std::string> { static constexpr auto name = "body_";
+ static constexpr auto options = ""; };
+
+ struct Nick: Column<std::string> { static constexpr auto name = "nick_";
+ static constexpr auto options = ""; };
+
+ struct Pass: Column<std::string> { static constexpr auto name = "pass_";
+ static constexpr auto options = ""; };
+
+ struct Ports: Column<std::string> { static constexpr auto name = "ports_";
+ static constexpr auto options = "";
+ Ports(): Column<std::string>("6667") {} };
+
+ struct TlsPorts: Column<std::string> { static constexpr auto name = "tlsPorts_";
+ static constexpr auto options = "";
+ TlsPorts(): Column<std::string>("6697;6670") {} };
+
+ struct Username: Column<std::string> { static constexpr auto name = "username_";
+ static constexpr auto options = ""; };
+
+ struct Realname: Column<std::string> { static constexpr auto name = "realname_";
+ static constexpr auto options = ""; };
+
+ struct AfterConnectionCommand: Column<std::string> { static constexpr auto name = "afterConnectionCommand_";
+ static constexpr auto options = ""; };
+
+ struct TrustedFingerprint: Column<std::string> { static constexpr auto name = "trustedFingerprint_";
+ static constexpr auto options = ""; };
+
+ struct EncodingOut: Column<std::string> { static constexpr auto name = "encodingOut_";
+ static constexpr auto options = ""; };
+
+ struct EncodingIn: Column<std::string> { static constexpr auto name = "encodingIn_";
+ static constexpr auto options = ""; };
+
+ struct MaxHistoryLength: Column<int> { static constexpr auto name = "maxHistoryLength_";
+ static constexpr auto options = "";
+ MaxHistoryLength(): Column<int>(20) {} };
+
+ struct RecordHistory: Column<bool> { static constexpr auto name = "recordHistory_";
+ static constexpr auto options = "";
+ RecordHistory(): Column<bool>(true) {}};
+
+ struct VerifyCert: Column<bool> { static constexpr auto name = "verifyCert_";
+ static constexpr auto options = "";
+ VerifyCert(): Column<bool>(true) {} };
+
+ struct Persistent: Column<bool> { static constexpr auto name = "persistent_";
+ static constexpr auto options = "";
+ Persistent(): Column<bool>(false) {} };
+
+ using MucLogLineTable = Table<Id, Uuid, Owner, IrcChanName, IrcServerName, Date, Body, Nick>;
+ using MucLogLine = MucLogLineTable::RowType;
+
+ using GlobalOptionsTable = Table<Id, Owner, MaxHistoryLength, RecordHistory>;
+ using GlobalOptions = GlobalOptionsTable::RowType;
+
+ using IrcServerOptionsTable = Table<Id, Owner, Server, Pass, AfterConnectionCommand, TlsPorts, Ports, Username, Realname, VerifyCert, TrustedFingerprint, EncodingOut, EncodingIn, MaxHistoryLength>;
+ using IrcServerOptions = IrcServerOptionsTable::RowType;
+
+ using IrcChannelOptionsTable = Table<Id, Owner, Server, Channel, EncodingOut, EncodingIn, MaxHistoryLength, Persistent>;
+ using IrcChannelOptions = IrcChannelOptionsTable::RowType;
+
Database() = default;
~Database() = default;
@@ -25,42 +110,40 @@ public:
Database& operator=(const Database&) = delete;
Database& operator=(Database&&) = delete;
- static void set_verbose(const bool val);
-
- template<typename PersistentType>
- static size_t count()
- {
- return litesql::select<PersistentType>(*Database::db).count();
- }
- /**
- * Return the object from the db. Create it beforehand (with all default
- * values) if it is not already present.
- */
- static db::GlobalOptions get_global_options(const std::string& owner);
- static db::IrcServerOptions get_irc_server_options(const std::string& owner,
+ static GlobalOptions get_global_options(const std::string& owner);
+ static IrcServerOptions get_irc_server_options(const std::string& owner,
const std::string& server);
- static db::IrcChannelOptions get_irc_channel_options(const std::string& owner,
- const std::string& server,
- const std::string& channel);
- static db::IrcChannelOptions get_irc_channel_options_with_server_default(const std::string& owner,
- const std::string& server,
- const std::string& channel);
- static db::IrcChannelOptions get_irc_channel_options_with_server_and_global_default(const std::string& owner,
- const std::string& server,
- const std::string& channel);
- static std::vector<db::MucLogLine> get_muc_logs(const std::string& owner, const std::string& chan_name, const std::string& server,
- int limit=-1, const std::string& start="", const std::string& end="");
- static std::string store_muc_message(const std::string& owner, const Iid& iid,
- time_point date, const std::string& body, const std::string& nick);
+ static IrcChannelOptions get_irc_channel_options(const std::string& owner,
+ const std::string& server,
+ const std::string& channel);
+ static IrcChannelOptions get_irc_channel_options_with_server_default(const std::string& owner,
+ const std::string& server,
+ const std::string& channel);
+ static IrcChannelOptions get_irc_channel_options_with_server_and_global_default(const std::string& owner,
+ const std::string& server,
+ const std::string& channel);
+ static std::vector<MucLogLine> get_muc_logs(const std::string& owner, const std::string& chan_name, const std::string& server,
+ int limit=-1, const std::string& start="", const std::string& end="");
+ static std::string store_muc_message(const std::string& owner, const std::string& chan_name, const std::string& server_name,
+ time_point date, const std::string& body, const std::string& nick);
static void close();
- static void open(const std::string& filename, const std::string& db_type="sqlite3");
+ static void open(const std::string& filename);
+ template <typename TableType>
+ static int64_t count(const TableType& table)
+ {
+ CountQuery query{table.get_name()};
+ return query.execute(Database::db);
+ }
+
+ static MucLogLineTable muc_log_lines;
+ static GlobalOptionsTable global_options;
+ static IrcServerOptionsTable irc_server_options;
+ static IrcChannelOptionsTable irc_channel_options;
+ static sqlite3* db;
-private:
+ private:
static std::string gen_uuid();
- static std::unique_ptr<db::BibouDB> db;
};
#endif /* USE_DATABASE */
-
-
diff --git a/src/database/insert_query.hpp b/src/database/insert_query.hpp
new file mode 100644
index 0000000..4965fc0
--- /dev/null
+++ b/src/database/insert_query.hpp
@@ -0,0 +1,129 @@
+#pragma once
+
+#include <database/statement.hpp>
+#include <database/column.hpp>
+#include <database/query.hpp>
+#include <logger/logger.hpp>
+
+#include <type_traits>
+#include <vector>
+#include <string>
+#include <tuple>
+
+#include <sqlite3.h>
+
+template <int N, typename ColumnType, typename... T>
+typename std::enable_if<!std::is_same<std::decay_t<ColumnType>, Id>::value, void>::type
+actual_bind(Statement& statement, std::vector<std::string>& params, const std::tuple<T...>&)
+{
+ const auto value = params.front();
+ params.erase(params.begin());
+ if (sqlite3_bind_text(statement.get(), N + 1, value.data(), static_cast<int>(value.size()), SQLITE_TRANSIENT) != SQLITE_OK)
+ log_error("Failed to bind ", value, " to param ", N);
+ else
+ log_debug("Bound (not id) [", value, "] to ", N);
+}
+
+template <int N, typename ColumnType, typename... T>
+typename std::enable_if<std::is_same<std::decay_t<ColumnType>, Id>::value, void>::type
+actual_bind(Statement& statement, std::vector<std::string>&, const std::tuple<T...>& columns)
+{
+ auto&& column = std::get<Id>(columns);
+ if (column.value != 0)
+ {
+ if (sqlite3_bind_int64(statement.get(), N + 1, static_cast<sqlite3_int64>(column.value)) != SQLITE_OK)
+ log_error("Failed to bind ", column.value, " to id.");
+ }
+ else if (sqlite3_bind_null(statement.get(), N + 1) != SQLITE_OK)
+ log_error("Failed to bind NULL to param ", N);
+ else
+ log_debug("Bound NULL to ", N);
+}
+
+struct InsertQuery: public Query
+{
+ InsertQuery(const std::string& name):
+ Query("INSERT OR REPLACE INTO ")
+ {
+ this->body += name;
+ }
+
+ template <typename... T>
+ void execute(const std::tuple<T...>& columns, sqlite3* db)
+ {
+ auto statement = this->prepare(db);
+ {
+ this->bind_param<0>(columns, statement);
+ if (sqlite3_step(statement.get()) != SQLITE_DONE)
+ log_error("Failed to execute query: ", sqlite3_errmsg(db));
+ }
+ }
+
+ template <int N, typename... T>
+ typename std::enable_if<N < sizeof...(T), void>::type
+ bind_param(const std::tuple<T...>& columns, Statement& statement)
+ {
+ using ColumnType = typename std::remove_reference<decltype(std::get<N>(columns))>::type;
+
+ actual_bind<N, ColumnType>(statement, this->params, columns);
+ this->bind_param<N+1>(columns, statement);
+ }
+
+ template <int N, typename... T>
+ typename std::enable_if<N == sizeof...(T), void>::type
+ bind_param(const std::tuple<T...>&, Statement&)
+ {}
+
+ template <typename... T>
+ void insert_values(const std::tuple<T...>& columns)
+ {
+ this->body += "VALUES (";
+ this->insert_value<0>(columns);
+ this->body += ")";
+ }
+
+ template <int N, typename... T>
+ typename std::enable_if<N < sizeof...(T), void>::type
+ insert_value(const std::tuple<T...>& columns)
+ {
+ this->body += "?";
+ if (N != sizeof...(T) - 1)
+ this->body += ",";
+ this->body += " ";
+ add_param(*this, std::get<N>(columns));
+ this->insert_value<N+1>(columns);
+ }
+ template <int N, typename... T>
+ typename std::enable_if<N == sizeof...(T), void>::type
+ insert_value(const std::tuple<T...>&)
+ { }
+
+ template <typename... T>
+ void insert_col_names(const std::tuple<T...>& columns)
+ {
+ this->body += " (";
+ this->insert_col_name<0>(columns);
+ this->body += ")\n";
+ }
+
+ template <int N, typename... T>
+ typename std::enable_if<N < sizeof...(T), void>::type
+ insert_col_name(const std::tuple<T...>& columns)
+ {
+ using ColumnType = typename std::remove_reference<decltype(std::get<N>(columns))>::type;
+
+ this->body += ColumnType::name;
+
+ if (N < (sizeof...(T) - 1))
+ this->body += ", ";
+
+ this->insert_col_name<N+1>(columns);
+ }
+ template <int N, typename... T>
+ typename std::enable_if<N == sizeof...(T), void>::type
+ insert_col_name(const std::tuple<T...>&)
+ {}
+
+
+ private:
+};
diff --git a/src/database/query.cpp b/src/database/query.cpp
new file mode 100644
index 0000000..fb8c055
--- /dev/null
+++ b/src/database/query.cpp
@@ -0,0 +1,11 @@
+#include <database/query.hpp>
+#include <database/column.hpp>
+
+template <>
+void add_param<Id>(Query&, const Id&)
+{}
+
+void actual_add_param(Query& query, const std::string& val)
+{
+ query.params.push_back(val);
+}
diff --git a/src/database/query.hpp b/src/database/query.hpp
new file mode 100644
index 0000000..b77a421
--- /dev/null
+++ b/src/database/query.hpp
@@ -0,0 +1,48 @@
+#pragma once
+
+#include <database/statement.hpp>
+
+#include <logger/logger.hpp>
+
+#include <vector>
+#include <string>
+
+#include <sqlite3.h>
+
+struct Query
+{
+ std::string body;
+ std::vector<std::string> params;
+
+ Query(std::string str):
+ body(std::move(str))
+ {}
+
+ Statement prepare(sqlite3* db)
+ {
+ sqlite3_stmt* statement;
+ log_debug(this->body);
+ auto res = sqlite3_prepare(db, this->body.data(), static_cast<int>(this->body.size()) + 1,
+ &statement, nullptr);
+ if (res != SQLITE_OK)
+ {
+ log_error("Error preparing statement: ", sqlite3_errmsg(db));
+ return nullptr;
+ }
+ return {statement};
+ }
+};
+
+template <typename ColumnType>
+void add_param(Query& query, const ColumnType& column)
+{
+ actual_add_param(query, column.value);
+}
+
+template <typename T>
+void actual_add_param(Query& query, const T& val)
+{
+ query.params.push_back(std::to_string(val));
+}
+
+void actual_add_param(Query& query, const std::string& val);
diff --git a/src/database/row.hpp b/src/database/row.hpp
new file mode 100644
index 0000000..b6887cb
--- /dev/null
+++ b/src/database/row.hpp
@@ -0,0 +1,75 @@
+#pragma once
+
+#include <database/insert_query.hpp>
+#include <logger/logger.hpp>
+
+#include <type_traits>
+
+#include <sqlite3.h>
+
+template <typename ColumnType, typename... T>
+typename std::enable_if<!std::is_same<std::decay_t<ColumnType>, Id>::value, void>::type
+update_id(std::tuple<T...>&, sqlite3*)
+{}
+
+template <typename ColumnType, typename... T>
+typename std::enable_if<std::is_same<std::decay_t<ColumnType>, Id>::value, void>::type
+update_id(std::tuple<T...>& columns, sqlite3* db)
+{
+ auto&& column = std::get<ColumnType>(columns);
+ log_debug("Found an autoincrement col.");
+ auto res = sqlite3_last_insert_rowid(db);
+ log_debug("Value is now: ", res);
+ column.value = static_cast<Id::real_type>(res);
+}
+
+template <std::size_t N, typename... T>
+typename std::enable_if<N < sizeof...(T), void>::type
+update_autoincrement_id(std::tuple<T...>& columns, sqlite3* db)
+{
+ using ColumnType = typename std::remove_reference<decltype(std::get<N>(columns))>::type;
+ update_id<ColumnType>(columns, db);
+ update_autoincrement_id<N+1>(columns, db);
+}
+
+template <std::size_t N, typename... T>
+typename std::enable_if<N == sizeof...(T), void>::type
+update_autoincrement_id(std::tuple<T...>&, sqlite3*)
+{}
+
+template <typename... T>
+struct Row
+{
+ Row(std::string name):
+ table_name(std::move(name))
+ {}
+
+ template <typename Type>
+ auto& col()
+ {
+ auto&& col = std::get<Type>(this->columns);
+ return col.value;
+ }
+
+ template <typename Type>
+ const auto& col() const
+ {
+ auto&& col = std::get<Type>(this->columns);
+ return col.value;
+ }
+
+ void save(sqlite3* db)
+ {
+ InsertQuery query(this->table_name);
+ query.insert_col_names(this->columns);
+ query.insert_values(this->columns);
+ log_debug(query.body);
+
+ query.execute(this->columns, db);
+
+ update_autoincrement_id<0>(this->columns, db);
+ }
+
+ std::tuple<T...> columns;
+ std::string table_name;
+};
diff --git a/src/database/select_query.hpp b/src/database/select_query.hpp
new file mode 100644
index 0000000..d0c1d59
--- /dev/null
+++ b/src/database/select_query.hpp
@@ -0,0 +1,153 @@
+#pragma once
+
+#include <database/statement.hpp>
+#include <database/query.hpp>
+#include <logger/logger.hpp>
+#include <database/row.hpp>
+
+#include <vector>
+#include <string>
+
+#include <sqlite3.h>
+
+using namespace std::string_literals;
+
+template <typename T>
+typename std::enable_if<std::is_integral<T>::value, sqlite3_int64>::type
+extract_row_value(Statement& statement, const int i)
+{
+ return sqlite3_column_int64(statement.get(), i);
+}
+
+template <typename T>
+typename std::enable_if<std::is_same<std::string, T>::value, std::string>::type
+extract_row_value(Statement& statement, const int i)
+{
+ const auto size = sqlite3_column_bytes(statement.get(), i);
+ const unsigned char* str = sqlite3_column_text(statement.get(), i);
+ std::string result(reinterpret_cast<const char*>(str), static_cast<std::size_t>(size));
+ return result;
+}
+
+template <std::size_t N=0, typename... T>
+typename std::enable_if<N < sizeof...(T), void>::type
+extract_row_values(Row<T...>& row, Statement& statement)
+{
+ using ColumnType = typename std::remove_reference<decltype(std::get<N>(row.columns))>::type;
+
+ auto&& column = std::get<N>(row.columns);
+ column.value = static_cast<decltype(column.value)>(extract_row_value<typename ColumnType::real_type>(statement, N));
+
+ extract_row_values<N+1>(row, statement);
+}
+
+template <std::size_t N=0, typename... T>
+typename std::enable_if<N == sizeof...(T), void>::type
+extract_row_values(Row<T...>&, Statement&)
+{}
+
+template <typename... T>
+struct SelectQuery: public Query
+{
+ SelectQuery(std::string table_name):
+ Query("SELECT"),
+ table_name(table_name)
+ {
+ this->insert_col_name<0>();
+ this->body += " from " + this->table_name;
+ }
+
+ template <std::size_t N>
+ typename std::enable_if<N < sizeof...(T), void>::type
+ insert_col_name()
+ {
+ using ColumnsType = std::tuple<T...>;
+ using ColumnType = typename std::remove_reference<decltype(std::get<N>(std::declval<ColumnsType>()))>::type;
+
+ this->body += " "s + ColumnType::name;
+
+ if (N < (sizeof...(T) - 1))
+ this->body += ", ";
+
+ this->insert_col_name<N+1>();
+ }
+ template <std::size_t N>
+ typename std::enable_if<N == sizeof...(T), void>::type
+ insert_col_name()
+ {}
+
+ SelectQuery& where()
+ {
+ this->body += " WHERE ";
+ return *this;
+ };
+
+ SelectQuery& order_by()
+ {
+ this->body += " ORDER BY ";
+ return *this;
+ }
+
+ SelectQuery& limit()
+ {
+ this->body += " LIMIT ";
+ return *this;
+ }
+
+ auto execute(sqlite3* db)
+ {
+ auto statement = this->prepare(db);
+ int i = 1;
+ for (const std::string& param: this->params)
+ {
+ if (sqlite3_bind_text(statement.get(), i, param.data(), static_cast<int>(param.size()), SQLITE_TRANSIENT) != SQLITE_OK)
+ log_debug("Failed to bind ", param, " to param ", i);
+ else
+ log_debug("Bound ", param, " to ", i);
+
+ i++;
+ }
+ std::vector<Row<T...>> rows;
+ while (sqlite3_step(statement.get()) == SQLITE_ROW)
+ {
+ Row<T...> row(this->table_name);
+ extract_row_values(row, statement);
+ rows.push_back(row);
+ }
+ return rows;
+ }
+
+ const std::string table_name;
+};
+
+template <typename T, typename... ColumnTypes>
+typename std::enable_if<!std::is_integral<T>::value, SelectQuery<ColumnTypes...>&>::type
+operator<<(SelectQuery<ColumnTypes...>& query, const T&)
+{
+ query.body += T::name;
+ return query;
+}
+
+template <typename... ColumnTypes>
+SelectQuery<ColumnTypes...>& operator<<(SelectQuery<ColumnTypes...>& query, const char* str)
+{
+ query.body += str;
+ return query;
+}
+
+template <typename... ColumnTypes>
+SelectQuery<ColumnTypes...>& operator<<(SelectQuery<ColumnTypes...>& query, const std::string& str)
+{
+ query.body += "?";
+ actual_add_param(query, str);
+ return query;
+}
+
+template <typename Integer, typename... ColumnTypes>
+typename std::enable_if<std::is_integral<Integer>::value, SelectQuery<ColumnTypes...>&>::type
+operator<<(SelectQuery<ColumnTypes...>& query, const Integer& i)
+{
+ query.body += "?";
+ actual_add_param(query, i);
+ return query;
+}
diff --git a/src/database/statement.hpp b/src/database/statement.hpp
new file mode 100644
index 0000000..87cd70f
--- /dev/null
+++ b/src/database/statement.hpp
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <sqlite3.h>
+
+class Statement
+{
+ public:
+ Statement(sqlite3_stmt* stmt):
+ stmt(stmt) {}
+ ~Statement()
+ {
+ sqlite3_finalize(this->stmt);
+ }
+
+ Statement(const Statement&) = delete;
+ Statement& operator=(const Statement&) = delete;
+ Statement(Statement&& other):
+ stmt(other.stmt)
+ {
+ other.stmt = nullptr;
+ }
+ Statement& operator=(Statement&& other)
+ {
+ this->stmt = other.stmt;
+ other.stmt = nullptr;
+ return *this;
+ }
+ sqlite3_stmt* get()
+ {
+ return this->stmt;
+ }
+
+ private:
+ sqlite3_stmt* stmt;
+};
diff --git a/src/database/table.hpp b/src/database/table.hpp
new file mode 100644
index 0000000..163b97f
--- /dev/null
+++ b/src/database/table.hpp
@@ -0,0 +1,84 @@
+#pragma once
+
+#include <database/select_query.hpp>
+#include <database/type_to_sql.hpp>
+#include <logger/logger.hpp>
+#include <database/row.hpp>
+
+#include <algorithm>
+#include <string>
+
+template <typename... T>
+class Table
+{
+ static_assert(sizeof...(T) > 0, "Table cannot be empty");
+ using ColumnTypes = std::tuple<T...>;
+
+ public:
+ using RowType = Row<T...>;
+
+ Table(std::string name):
+ name(std::move(name))
+ {}
+
+ void create(sqlite3* db)
+ {
+ std::string res{"CREATE TABLE IF NOT EXISTS "};
+ res += this->name;
+ res += " (\n";
+ this->add_column_create<0>(res);
+ res += ")";
+
+ log_debug(res);
+
+ char* error;
+ const auto result = sqlite3_exec(db, res.data(), nullptr, nullptr, &error);
+ log_debug("result: ", +result);
+ if (result != SQLITE_OK)
+ {
+ log_error("Error executing query: ", error);
+ sqlite3_free(error);
+ }
+ }
+
+ RowType row()
+ {
+ return {this->name};
+ }
+
+ SelectQuery<T...> select()
+ {
+ SelectQuery<T...> select(this->name);
+ return select;
+ }
+
+ const std::string& get_name() const
+ {
+ return this->name;
+ }
+
+ private:
+ template <std::size_t N>
+ typename std::enable_if<N < sizeof...(T), void>::type
+ add_column_create(std::string& str)
+ {
+ using ColumnType = typename std::remove_reference<decltype(std::get<N>(std::declval<ColumnTypes>()))>::type;
+ using RealType = typename ColumnType::real_type;
+ str += ColumnType::name;
+ str += " ";
+ str += TypeToSQLType<RealType>::type;
+ str += " "s + ColumnType::options;
+ if (N != sizeof...(T) - 1)
+ str += ",";
+ str += "\n";
+
+ add_column_create<N+1>(str);
+ }
+
+ template <std::size_t N>
+ typename std::enable_if<N == sizeof...(T), void>::type
+ add_column_create(std::string&)
+ { }
+
+ const std::string name;
+};
diff --git a/src/database/type_to_sql.cpp b/src/database/type_to_sql.cpp
new file mode 100644
index 0000000..0b26185
--- /dev/null
+++ b/src/database/type_to_sql.cpp
@@ -0,0 +1,8 @@
+#include <database/type_to_sql.hpp>
+
+template <> const std::string TypeToSQLType<int>::type = "INTEGER";
+template <> const std::string TypeToSQLType<std::size_t>::type = "INTEGER";
+template <> const std::string TypeToSQLType<long>::type = "INTEGER";
+template <> const std::string TypeToSQLType<long long>::type = "INTEGER";
+template <> const std::string TypeToSQLType<bool>::type = "INTEGER";
+template <> const std::string TypeToSQLType<std::string>::type = "TEXT";
diff --git a/src/database/type_to_sql.hpp b/src/database/type_to_sql.hpp
new file mode 100644
index 0000000..1942268
--- /dev/null
+++ b/src/database/type_to_sql.hpp
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <string>
+
+template <typename T>
+struct TypeToSQLType { static const std::string type; };
+
+template <> const std::string TypeToSQLType<int>::type;
+template <> const std::string TypeToSQLType<std::size_t>::type;
+template <> const std::string TypeToSQLType<long>::type;
+template <> const std::string TypeToSQLType<long long>::type;
+template <> const std::string TypeToSQLType<bool>::type;
+template <> const std::string TypeToSQLType<std::string>::type; \ No newline at end of file