1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
#include <biboumi.h>
#ifdef SQLITE3_FOUND
#include <database/sqlite3_engine.hpp>
#include <database/sqlite3_statement.hpp>
#include <database/query.hpp>
#include <utils/tolower.hpp>
#include <logger/logger.hpp>
#include <vector>
Sqlite3Engine::Sqlite3Engine(sqlite3* db):
db(db)
{
}
Sqlite3Engine::~Sqlite3Engine()
{
sqlite3_close(this->db);
}
std::set<std::string> Sqlite3Engine::get_all_columns_from_table(const std::string& table_name)
{
std::set<std::string> result;
char* errmsg;
std::string query{"PRAGMA table_info(" + table_name + ")"};
int res = sqlite3_exec(this->db, query.data(), [](void* param, int columns_nb, char** columns, char**) -> int {
constexpr int name_column = 1;
std::set<std::string>* result = static_cast<std::set<std::string>*>(param);
if (name_column < columns_nb)
result->insert(utils::tolower(columns[name_column]));
return 0;
}, &result, &errmsg);
if (res != SQLITE_OK)
{
log_error("Error executing ", query, ": ", errmsg);
sqlite3_free(errmsg);
}
return result;
}
std::unique_ptr<DatabaseEngine> Sqlite3Engine::open(const std::string& filename)
{
sqlite3* new_db;
auto res = sqlite3_open_v2(filename.data(), &new_db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, nullptr);
if (res != SQLITE_OK)
{
log_error("Failed to open database file ", filename, ": ", sqlite3_errmsg(new_db));
sqlite3_close(new_db);
throw std::runtime_error("");
}
return std::make_unique<Sqlite3Engine>(new_db);
}
std::tuple<bool, std::string> Sqlite3Engine::raw_exec(const std::string& query)
{
#ifdef DEBUG_SQL_QUERIES
log_debug("SQL QUERY: ", query);
const auto timer = make_sql_timer();
#endif
char* error;
const auto result = sqlite3_exec(db, query.data(), nullptr, nullptr, &error);
if (result != SQLITE_OK)
{
std::string err_msg(error);
sqlite3_free(error);
return std::make_tuple(false, err_msg);
}
return std::make_tuple(true, std::string{});
}
std::unique_ptr<Statement> Sqlite3Engine::prepare(const std::string& query)
{
sqlite3_stmt* stmt;
auto res = sqlite3_prepare(db, query.data(), static_cast<int>(query.size()) + 1,
&stmt, nullptr);
if (res != SQLITE_OK)
{
log_error("Error preparing statement: ", sqlite3_errmsg(db));
return nullptr;
}
return std::make_unique<Sqlite3Statement>(stmt);
}
void Sqlite3Engine::extract_last_insert_rowid(Statement&)
{
this->last_inserted_rowid = sqlite3_last_insert_rowid(this->db);
}
std::string Sqlite3Engine::id_column_type()
{
return "INTEGER PRIMARY KEY AUTOINCREMENT";
}
#endif
|
