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@ -6,8 +6,8 @@ use rusqlite::{
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Connection, OpenFlags, ToSql,
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};
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use serde_json::Value as JsonValue;
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use std::fs;
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use std::path::Path;
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use std::{fs, path::PathBuf};
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use tauri::State;
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// --- Hilfsfunktion: Konvertiert JSON Value zu etwas, das rusqlite versteht ---
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// Diese Funktion ist etwas knifflig wegen Ownership und Lifetimes.
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@ -67,32 +67,10 @@ pub async fn execute(
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Ok(affected_rows)
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}
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/// Führt SQL-Schreiboperationen (INSERT, UPDATE, DELETE, CREATE) ohne Berechtigungsprüfung aus
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/* pub async fn execute(
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sql: &str,
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params: &[String],
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state: &State<'_, DbConnection>,
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) -> Result<String, String> {
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let db = state.0.lock().map_err(|e| format!("Mutex-Fehler: {}", e))?;
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let conn = db.as_ref().ok_or("Keine Datenbankverbindung vorhanden")?;
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let rows_affected = conn
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.execute(sql, rusqlite::params_from_iter(params.iter()))
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.map_err(|e| format!("SQL-Ausführungsfehler: {}", e))?;
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let last_id = conn.last_insert_rowid();
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Ok(serde_json::to_string(&json!({
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"rows_affected": rows_affected,
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"last_insert_id": last_id
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}))
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.map_err(|e| format!("JSON-Serialisierungsfehler: {}", e))?)
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} */
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#[tauri::command]
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pub async fn select(
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sql: String,
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params: Vec<JsonValue>, // Parameter als JSON Values empfangen
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params: Vec<JsonValue>,
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state: &State<'_, DbConnection>,
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) -> Result<Vec<Vec<JsonValue>>, String> {
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// Ergebnis als Vec<RowObject>
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@ -182,45 +160,6 @@ pub async fn select(
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Ok(result_vec)
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}
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/// Führt SQL-Leseoperationen (SELECT) ohne Berechtigungsprüfung aus
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/* pub async fn select(
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sql: &str,
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params: &[String],
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state: &State<'_, DbConnection>,
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) -> Result<Vec<Vec<Option<String>>>, String> {
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let db = state.0.lock().map_err(|e| format!("Mutex-Fehler: {}", e))?;
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let conn = db.as_ref().ok_or("Keine Datenbankverbindung vorhanden")?;
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let mut stmt = conn
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.prepare(sql)
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.map_err(|e| format!("SQL-Vorbereitungsfehler: {}", e))?;
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let columns = stmt.column_count();
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let mut rows = stmt
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.query(rusqlite::params_from_iter(params.iter()))
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.map_err(|e| format!("SQL-Abfragefehler: {}", e))?;
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let mut result = Vec::new();
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while let Some(row) = rows
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.next()
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.map_err(|e| format!("Zeilenabruffehler: {}", e))?
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{
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let mut row_data = Vec::new();
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for i in 0..columns {
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let value = row
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.get(i)
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.map_err(|e| format!("Datentypfehler in Spalte {}: {}", i, e))?;
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row_data.push(value);
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}
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/* println!(
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"Select Row Data: {}",
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&row_data.clone().join("").to_string()
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); */
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result.push(row_data);
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}
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Ok(result)
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} */
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/// Öffnet und initialisiert eine Datenbank mit Verschlüsselung
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pub fn open_and_init_db(path: &str, key: &str, create: bool) -> Result<Connection, String> {
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let flags = if create {
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@ -236,6 +175,16 @@ pub fn open_and_init_db(path: &str, key: &str, create: bool) -> Result<Connectio
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conn.execute_batch("SELECT count(*) from haex_extensions")
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.map_err(|e| e.to_string())?;
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let journal_mode: String = conn
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.query_row("PRAGMA journal_mode=WAL;", [], |row| row.get(0))
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.map_err(|e| e.to_string())?;
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if journal_mode.eq_ignore_ascii_case("wal") {
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println!("WAL mode successfully enabled.");
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} else {
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eprintln!("Failed to enable WAL mode.");
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}
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Ok(conn)
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}
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