beheben mehrerer kleiner Fehler

src/components/Autocomplete.svelte

@@ -46,7 +46,7 @@
   const key = e => {
     if (e.key === "ArrowDown") selected += 1;
     else if (e.key === "ArrowUp") selected -= 1;
-    else if (e.key === "Enter") {
+    else if (e.key === "Enter" && selected >= 0) {
       show_selected(res[selected]);
       return;
     } else return;

src/components/Einstellungen.svelte

@@ -5,7 +5,7 @@
 
   let datensatz_schueler = "",
     datensatz_medien = "",
-    datensatz_sonstige = {nichtschueler: 1},
+    datensatz_sonstige = {nichtschueler: 1, memo: ''},
     warten;
 
   const update_sonstige = () => {
@@ -37,11 +37,11 @@
     const jahr = values[0].jahr
     const schueler_values = Object.values(schueler)
       .map(
-        a => `(${a[0]}, ${a[1]}, "${a[2]}", "${a[3]}", "${a[4]}")`
+        a => `(${a[0]}, ${a[1]}, '${a[2]}', '${a[3]}', '${a[4]}')`
       )
       .join(",");
     const kurszugehoerigkeit_values = values
-      .map(v => `(${v.id}, "${v.kurs_lehrer|''}", "${v.kurs||''}")`)
+      .map(v => `(${v.id}, '${v.kurs_lehrer||''}', '${v.kurs||''}')`)
       .join(",");
     const query = [
       `DELETE FROM schueler WHERE NOT EXISTS ( SELECT * FROM ausleihe WHERE ausleihe.schueler_id = schueler.id)`,

src/components/Medien.svelte

@@ -1,6 +1,6 @@
 <script>
   import Scanner from "./Scanner.svelte";
-  import Medium from "./Medien.svelte";
+  import Medium from "./Medium.svelte";
   import Schueler from "./Schueler.svelte";
   import { view, db, print, medien } from "./../stores.js";
   import { group_by } from "./../helpers.js";
@@ -55,7 +55,7 @@
   }
   let selected,
     suche = "",
-    modal = false,
+    modal,
     neuer_titel = "",
     add = false;
 
@@ -79,7 +79,6 @@
   };
   const focus = node => node.focus();
   update();
-
   $: medien_filter = group_by(
     $medien.filter(
       m =>
@@ -136,8 +135,8 @@
           {#each Object.entries(medien_filter) as [n, m], i}
             <tr
               class="pointer"
-              on:mouseover={() => (selected = n)}
-              on:click={() => (modal = true)}>
+              on:click={_=> modal = true}
+              on:mouseover={() => (selected = n)}>
               <td>{m[0].medien_id}</td>
               <td>{m[0].medien_name}</td>
               <td>

src/components/Medium.svelte

@@ -1,4 +1,5 @@
 <script>
+console.log('Medium')
   import { db } from "./../stores.js";
   export let medium = [];
   export let modal;

src/components/Scanner.svelte

@@ -1,7 +1,8 @@
 <script>
   import { configData, db, scan_status } from "./../stores.js";
   import { DontBubbleException } from './../exceptions.js'
- 	import { onDestroy } from 'svelte';
+  import { onDestroy } from 'svelte';
+  import { focus } from './../helpers.js';
 	onDestroy(() => $scan_status = {})
 
   export let scaninterface
@@ -26,7 +27,6 @@
     }
     if (event.key === 'Escape') {
       barcode_manuell = !barcode_manuell
-      barcode_input = ''
     }
     if (
       event.key === "Enter" &&
@@ -58,29 +58,30 @@
     `
       )
       .get(barcode);
-    console.log(res);
+    console.log('Ergebnis Barcodesuche in DB: ', res || '– nichts gefunden –');
     if (!res) {
       try {
         zuordnung(barcode);
+        console.log(e, "Medium zugeordnet");
       } catch (e) {
         medium = $db.prepare(`SELECT * FROM medienbezeichnung`).all();
         registrieren = true
-        console.log(e, "Zuordnung ist hier nicht möglich, Medium registrieren");
+        console.log(e, "Barcode unbekannt; Medium registrieren");
         return
       }
     } else if (res.ausleihe_id) {
       try {
         rueckgabe(res);
+        console.log(e, "Medium zurückgegeben");
       } catch (e) {
         if (e instanceof DontBubbleException) return
-        console.log(e, "Rückgabe ist hier nicht möglich");
       }
     } else {
       try {
         ausleihe(res);
+        console.log(e, "Medium ausgeliehen");
       } catch (e) {
         if (e instanceof DontBubbleException) return
-        console.log("Ausleihe ist hier nicht möglich");
       }
     }
     try {
@@ -131,6 +132,7 @@
               class="input"
               type="text"
               bind:value={barcode}
+              use:focus
               on:keydown={e => {if (e.key === 'Enter') { barcode_manuell=false; scan()}}} />
           </div>
         </div>

src/components/Schueler.svelte

@@ -4,7 +4,6 @@
   import * as notifier from './../notifier.js'
   import { view, schueler, db, medien, print } from './../stores.js';
   import { group_by } from './../helpers.js'
-
   function update () {
     $medien = $db.prepare(`
       SELECT a.*, x.*, m.*, a.id AS ausleihe_id

src/getter.js

@@ -16,7 +16,7 @@ import { schueler, db } from "./stores.js";
     const res = get(db)
       .prepare(
         `
-      SELECT s.*, k.kurs, k.kurs_lehrer
+      SELECT DISTINCT s.*, k.kurs, k.kurs_lehrer
       FROM kurszugehoerigkeit AS k
       LEFT JOIN schueler AS s ON (k.schild_id = s.schild_id)
       WHERE k.kurs = ? AND s.klasse = ? AND s.jahr = ?

src/helpers.js

@@ -1,12 +1,16 @@
-  export const group_by = (array, key) => {
-    return array.reduce((result, currentValue) => {
-      (result[currentValue[key]] = result[currentValue[key]] || []).push(
-        currentValue
-      );
-      return result;
-    }, {});
-  };
-  export const chunk = (arr, size) => arr.reduce((chunks, el, i) => (i % size
-    ? chunks[chunks.length - 1].push(el)
-    : chunks.push([el])) && chunks, []
-  )
+export const focus = node => node.focus();
+export const group_by = (array, key) => {
+  return array.reduce((result, currentValue) => {
+    (result[currentValue[key]] = result[currentValue[key]] || []).push(
+      currentValue
+    );
+    return result;
+  }, {});
+};
+export const chunk = (arr, size) =>
+  arr.reduce(
+    (chunks, el, i) =>
+      (i % size ? chunks[chunks.length - 1].push(el) : chunks.push([el])) &&
+      chunks,
+    []
+  );