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  1. 48
      .vscode/settings.json
  2. 73
      LICENSE
  3. 72
      README.md
  4. 23
      lib/sqlite3.hpp
  5. 119
      src/sqlite3.cpp
  6. 6
      test/test.cpp

@ -10,52 +10,6 @@
"type_traits": "cpp",
"tuple": "cpp",
"array": "cpp",
"utility": "cpp",
"cctype": "cpp",
"clocale": "cpp",
"cmath": "cpp",
"cstdarg": "cpp",
"cstddef": "cpp",
"cstdio": "cpp",
"cstdlib": "cpp",
"ctime": "cpp",
"cwchar": "cpp",
"cwctype": "cpp",
"atomic": "cpp",
"bit": "cpp",
"chrono": "cpp",
"compare": "cpp",
"concepts": "cpp",
"condition_variable": "cpp",
"cstdint": "cpp",
"map": "cpp",
"exception": "cpp",
"algorithm": "cpp",
"functional": "cpp",
"iterator": "cpp",
"memory": "cpp",
"memory_resource": "cpp",
"numeric": "cpp",
"optional": "cpp",
"random": "cpp",
"ratio": "cpp",
"string_view": "cpp",
"fstream": "cpp",
"initializer_list": "cpp",
"iosfwd": "cpp",
"istream": "cpp",
"limits": "cpp",
"mutex": "cpp",
"new": "cpp",
"numbers": "cpp",
"ostream": "cpp",
"semaphore": "cpp",
"sstream": "cpp",
"stdexcept": "cpp",
"stop_token": "cpp",
"streambuf": "cpp",
"thread": "cpp",
"cinttypes": "cpp",
"typeinfo": "cpp"
"utility": "cpp"
}
}

@ -1,73 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
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Copyright [2023] [Marcel Bandić - marcelb96@yahoo.com]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

@ -1,72 +0,0 @@
# SQLite3 Wrapper for C++
This is a simple C++ wrapper around the SQLite3 database, designed to facilitate database operations while managing connections and queries efficiently. The wrapper utilizes modern C++ features, including mutexes for thread safety.
## Features
- **Simple Interface**: Easy to use API for opening databases and executing queries.
- **Thread Safety**: Uses mutexes to ensure safe access in multithreaded environments.
- **Flexible Connection Management**: Option to keep the database connection open or close it after use.
## Installation
To use this SQLite3 wrapper in your C++ project, include the header file `sqlite3.hpp` in your project directory. Ensure you have the SQLite3 library installed and linked to your project.
## Usage
### Example
Here's a basic example demonstrating how to use the SQLite3 wrapper:
```cpp
#include <iostream>
#include "../lib/sqlite3.hpp" // Adjust the path as necessary
using namespace marcelb::SQlite3;
int main() {
try {
SQLite3 mydb("../example/example.db", false);
auto res = mydb.query("SELECT * FROM Tab1 WHERE id > ?", {"3"});
for (const auto& i : res) {
for (const auto& j : i.second) {
std::cout << i.first << " : " << j << std::endl;
}
}
} catch (const std::string& err) {
std::cout << err << std::endl;
}
return 0;
}
```
### Compile
Install libsqlite3-dev, is a C library that implements an SQLite database engine
```bash
sudo apt-get -y install libsqlite3-dev
```
And compile your code
```bash
g++ test.cpp ../src/* -o test.o -l sqlite3
```
## License
[APACHE 2.0](http://www.apache.org/licenses/LICENSE-2.0/)
## Support & Feedback
For support and any feedback, contact the address: marcelb96@yahoo.com.
## Contributing
Contributions are always welcome!
Feel free to fork and start working with or without a later pull request. Or contact for suggest and request an option.

@ -14,6 +14,9 @@ using namespace std;
namespace marcelb::SQlite3 {
static string responseDatabase;
static int callback(void* data, int argc, char** argv, char** azColName);
class SQLite3 {
mutex io;
sqlite3* db;
@ -22,26 +25,16 @@ class SQLite3 {
bool open();
bool close();
map<string, vector<string>> parse(const string& result);
public:
/**
* Open SQLite3 database
* path - path to the file
* _keepOpen - true: keeps the file open, false: opens it when needed
*/
// string Answer;
// map<string, vector<string>> parsed;
SQLite3(const string path, bool _keepOpen = false);
/**
* Make a request to the database
*/
map<string, vector<string>> query(const string& sql_command, const vector<string>& values);
/**
* Close the database and destroy the object
*/
map<string, vector<string>> query(const string sql_command);
~SQLite3();

@ -24,47 +24,90 @@ bool SQLite3::close() {
return operationStatus != SQLITE_OK;
}
map<string, vector<string>> SQLite3::query(const string& sql_command, const vector<string>& values) {
lock_guard<mutex> lock(io);
map<string, vector<string>> results;
if (!keepOpen) {
if (open()) {
throw string("[ERROR] Unable to open database ");
}
}
sqlite3_stmt* stmt;
if (sqlite3_prepare_v2(db, sql_command.c_str(), -1, &stmt, nullptr) != SQLITE_OK) {
throw string("[ERROR] Failed to prepare statement: ") + sqlite3_errmsg(db);
}
for (size_t i = 0; i < values.size(); ++i) {
sqlite3_bind_text(stmt, static_cast<int>(i + 1), values[i].c_str(), -1, SQLITE_TRANSIENT);
}
int columnCount = sqlite3_column_count(stmt);
while (sqlite3_step(stmt) == SQLITE_ROW) {
for (int i = 0; i < columnCount; ++i) {
const char* columnName = sqlite3_column_name(stmt, i);
const char* columnValue = (const char*)sqlite3_column_text(stmt, i);
results[columnName].push_back(columnValue ? columnValue : "NULL");
}
}
sqlite3_finalize(stmt);
if (!keepOpen) {
if (close()) {
throw string("[ERROR] Unable to close database ");
}
}
return results;
map<string, vector<string>> SQLite3::query(const string sql_command) {
io.lock();
if (!keepOpen) {
if (open()) {
io.unlock();
throw string("[ERROR] Unable to open database ");
}
}
bool r = true;
char *messaggeError;
uint exec_status;
exec_status = sqlite3_exec(db, sql_command.c_str(), callback, NULL, &messaggeError);
string result;
if (exec_status != SQLITE_OK) {
sqlite3_free(messaggeError);
r = false;
}
else {
result = responseDatabase;
responseDatabase.clear();
}
if (!keepOpen) {
if(close()) {
io.unlock();
throw string("[ERROR] Unable to close database ");
}
}
map<string, vector<string>> _parsed;
if (!r) {
io.unlock();
throw string("[ERROR] Unable to read database ");
}
else {
_parsed = parse(result);
}
io.unlock();
return _parsed;
}
map<string, vector<string>> SQLite3::parse(const string& result) {
string a = result;
map<string, vector<string>> parsed;
while (a.find("\n") < a.length()) {
uint lineend = a.find("\n");
string oneline = a.substr(0, lineend);
a.erase(0, lineend+1);
size_t sep = oneline.find(" = ");
string key = oneline.substr(0, sep);
string value = oneline.substr(sep + 3, oneline.length());
value = value.substr(0, value.length());
parsed[key].push_back(value);
}
return parsed;
}
SQLite3::~SQLite3() {
close();
if(close()) {
// throw string("[ERROR] Unable to close database ");
}
}
/**
* Callback funkcija za SQLite3
*/
static int callback(void* data, int argc, char** argv, char** azColName) {
int i;
char res[1000];
for (i = 0; i < argc; i++) {
sprintf(res, "%s = %s", azColName[i], argv[i] ? argv[i] : "NULL");
responseDatabase += string(res) + string("\n");
}
return 0;
}

@ -1,6 +1,7 @@
#include <iostream>
using namespace std;
#include "../lib/sqlite3.hpp"
using namespace marcelb::SQlite3;
@ -9,7 +10,10 @@ int main() {
SQLite3 mydb("../example/example.db", false);
auto res = mydb.query("Select * from Tab1 Where id > ?", {"3"});
// cout << mydb.ask("Select * from Tab1");
// cout << mydb.ask("INSERT INTO Tab1 VALUES(3,'Pakora', 'marijanab@bitelex.ml');");
auto res = mydb.query("Select * from Tab1");
// cout << endl << res["NAME"][1];
// cout << endl << res["MAIL"][1];

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