Prepare statement

.vscode/settings.json

@@ -10,6 +10,52 @@
         "type_traits": "cpp",
         "tuple": "cpp",
         "array": "cpp",
-        "utility": "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"
     }
 }

lib/sqlite3.hpp

@@ -34,7 +34,8 @@ public:
     
     SQLite3(const string path, bool _keepOpen = false);
 
-    map<string, vector<string>> query(const string sql_command);
+    // map<string, vector<string>> query(const string sql_command);
+    std::map<std::string, std::vector<std::string>> query(const std::string& sql_command, const std::vector<std::string>& values);
 
     ~SQLite3();
 

src/sqlite3.cpp

@@ -23,7 +23,7 @@ bool SQLite3::close() {
    db = NULL;
    return operationStatus != SQLITE_OK;
 }
-
+/*
 map<string, vector<string>> SQLite3::query(const string sql_command) {
    io.lock();
    if (!keepOpen) {
@@ -68,7 +68,48 @@ map<string, vector<string>> SQLite3::query(const string sql_command) {
    io.unlock();
    return _parsed;
 }
+*/
+
+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);
+    }
+
+    // Binduj parametre
+    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);
+    }
+
+    // Dohvati rezultate
+    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); // Oslobodi resurse vezane uz izjavu
+
+    if (!keepOpen) {
+        if (close()) {
+            throw string("[ERROR] Unable to close database ");
+        }
+    }
+
+    return results;
+}
 
 map<string, vector<string>> SQLite3::parse(const string& result) {
    string a = result;

test/test.cpp

@@ -13,7 +13,7 @@ int main() {
     // 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");
+    auto res = mydb.query("Select * from Tab1 Where id > ?", {"3"});
     // cout << endl <<  res["NAME"][1];
 
     // cout << endl <<  res["MAIL"][1];