begin implementing database. Down migrate doesnt work yet
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Nico
1679
package-lock.json
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1679
package-lock.json
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6112
src-tauri/Cargo.lock
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6112
src-tauri/Cargo.lock
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@@ -23,3 +23,7 @@ tauri-plugin-opener = "2"
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serde = { version = "1", features = ["derive"] }
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serde_json = "1"
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# SQLx und Tokio für asynchrone DB-Zugriffe
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sqlx = { version = "0.7", features = ["runtime-tokio-rustls", "sqlite", "macros", "migrate"] }
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tokio = { version = "1", features = ["full"] }
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8
src-tauri/migrations/0001_path_node_table.sql
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8
src-tauri/migrations/0001_path_node_table.sql
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@@ -0,0 +1,8 @@
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-- migrate:up
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CREATE TABLE PathNode (
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id integer primary key,
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title text,
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description text
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)
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-- migrate:down
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8
src-tauri/migrations/0002_node_exercise.sql
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8
src-tauri/migrations/0002_node_exercise.sql
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@@ -0,0 +1,8 @@
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-- migrate:up
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create table NodeExercise (
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id integer primary key,
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ex_type text,
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content text
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)
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-- migrate:down
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@@ -1,14 +1,50 @@
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// Learn more about Tauri commands at https://tauri.app/develop/calling-rust/
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use sqlx::sqlite::{self, SqlitePool};
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#[tauri::command]
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fn greet(name: &str) -> String {
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format!("Hello, {}! You've been greeted from Rust!", name)
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}
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// Beispiel: SQLite-Version abfragen
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#[tauri::command]
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async fn db_version(app_handle: tauri::AppHandle) -> Result<String, String> {
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use tauri::Manager;
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let base_dir = app_handle.path().app_data_dir().map_err(|e| format!("Konnte AppData-Verzeichnis nicht bestimmen: {}", e))?;
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let db_path = base_dir.join("paths.sqlite");
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println!("{:?}", db_path.to_str());
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if let Some(parent) = db_path.parent() {
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std::fs::create_dir_all(parent).map_err(|e| format!("Konnte Datenbankverzeichnis nicht erstellen: {}", e))?;
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}
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let db_opts = sqlite::SqliteConnectOptions::new()
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.filename(&db_path)
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.create_if_missing(true);
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let pool = SqlitePool::connect_with(db_opts)
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.await
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.map_err(|e| e.to_string())?;
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sqlx::migrate!("./migrations").run(&pool).await.map_err(|e| e.to_string())?;
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let row: (String,) = sqlx::query_as("SELECT sqlite_version()")
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.fetch_one(&pool)
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.await
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.map_err(|e| e.to_string())?;
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Ok(row.0)
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}
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#[cfg_attr(mobile, tauri::mobile_entry_point)]
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pub fn run() {
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tauri::Builder::default()
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.plugin(tauri_plugin_opener::init())
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.invoke_handler(tauri::generate_handler![greet])
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.invoke_handler(tauri::generate_handler![greet, db_version])
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.run(tauri::generate_context!())
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.expect("error while running tauri application");
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}
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// Hinweis: Für produktive Nutzung sollte der Pool als State eingebunden werden,
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// damit er nicht bei jedem Aufruf neu erstellt wird. Siehe Tauri-Doku:
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// https://tauri.app/v1/guides/features/state/
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184
src/App.vue
184
src/App.vue
@@ -1,160 +1,38 @@
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<script setup lang="ts">
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import { ref } from "vue";
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import { invoke } from "@tauri-apps/api/core";
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const greetMsg = ref("");
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const name = ref("");
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import { ref } from '@vue/reactivity';
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// @ts-ignore
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import { invoke } from '@tauri-apps/api/core';
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async function greet() {
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// Learn more about Tauri commands at https://tauri.app/develop/calling-rust/
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greetMsg.value = await invoke("greet", { name: name.value });
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const dbVersion = ref<string | null>(null);
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const loading = ref(false);
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const error = ref<string | null>(null);
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async function fetchDbVersion() {
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loading.value = true;
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error.value = null;
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try {
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dbVersion.value = await invoke<string>('db_version');
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} catch (e: any) {
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error.value = e?.toString() ?? 'Unbekannter Fehler';
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dbVersion.value = null;
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} finally {
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loading.value = false;
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}
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}
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</script>
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<template>
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<main class="container">
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<h1>Welcome to Tauri + Vue</h1>
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<div class="row">
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<a href="https://vite.dev" target="_blank">
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<img src="/vite.svg" class="logo vite" alt="Vite logo" />
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</a>
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<a href="https://tauri.app" target="_blank">
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<img src="/tauri.svg" class="logo tauri" alt="Tauri logo" />
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</a>
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<a href="https://vuejs.org/" target="_blank">
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<img src="./assets/vue.svg" class="logo vue" alt="Vue logo" />
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</a>
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</div>
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<p>Click on the Tauri, Vite, and Vue logos to learn more.</p>
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<form class="row" @submit.prevent="greet">
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<input id="greet-input" v-model="name" placeholder="Enter a name..." />
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<button type="submit">Greet</button>
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</form>
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<p>{{ greetMsg }}</p>
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</main>
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</template>
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<style scoped>
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.logo.vite:hover {
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filter: drop-shadow(0 0 2em #747bff);
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}
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.logo.vue:hover {
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filter: drop-shadow(0 0 2em #249b73);
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}
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</style>
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<style>
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:root {
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font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
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font-size: 16px;
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line-height: 24px;
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font-weight: 400;
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color: #0f0f0f;
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background-color: #f6f6f6;
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font-synthesis: none;
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text-rendering: optimizeLegibility;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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-webkit-text-size-adjust: 100%;
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}
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.container {
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margin: 0;
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padding-top: 10vh;
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display: flex;
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flex-direction: column;
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justify-content: center;
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text-align: center;
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}
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.logo {
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height: 6em;
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padding: 1.5em;
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will-change: filter;
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transition: 0.75s;
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}
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.logo.tauri:hover {
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filter: drop-shadow(0 0 2em #24c8db);
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}
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.row {
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display: flex;
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justify-content: center;
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}
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a {
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font-weight: 500;
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color: #646cff;
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text-decoration: inherit;
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}
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a:hover {
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color: #535bf2;
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}
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h1 {
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text-align: center;
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}
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input,
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button {
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border-radius: 8px;
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border: 1px solid transparent;
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padding: 0.6em 1.2em;
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font-size: 1em;
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font-weight: 500;
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font-family: inherit;
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color: #0f0f0f;
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background-color: #ffffff;
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transition: border-color 0.25s;
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box-shadow: 0 2px 2px rgba(0, 0, 0, 0.2);
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}
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button {
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cursor: pointer;
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}
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button:hover {
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border-color: #396cd8;
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}
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button:active {
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border-color: #396cd8;
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background-color: #e8e8e8;
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}
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input,
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button {
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outline: none;
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}
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#greet-input {
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margin-right: 5px;
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}
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@media (prefers-color-scheme: dark) {
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:root {
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color: #f6f6f6;
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background-color: #2f2f2f;
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}
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a:hover {
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color: #24c8db;
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}
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input,
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button {
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color: #ffffff;
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background-color: #0f0f0f98;
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}
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button:active {
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background-color: #0f0f0f69;
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}
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}
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</style>
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<div style="display: flex; flex-direction: column; align-items: center; gap: 1rem; margin-top: 2rem;">
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<button @click="fetchDbVersion" :disabled="loading">
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{{ loading ? 'Lade...' : 'Datenbank-Version abfragen' }}
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</button>
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<div v-if="dbVersion">
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<strong>SQLite-Version:</strong> {{ dbVersion }}
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</div>
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<div v-if="error" style="color: red;">
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Fehler: {{ error }}
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</div>
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</div>
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</template>
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