implemented adding/updating of item properties

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/stock/Index.svelte

@@ -35,6 +35,7 @@
             var json = await res.json();
             var dict = {}
             for (var entry of json.sort((a,b) => b.id - a.id)) dict[entry.name+'.'+entry.unit] = entry;
+            properties = null;
             properties = Object.values(dict).sort((a,b) => a.name.localeCompare(b.name));
             yikes();
         } else error(res);

frontend/src/routes/stock/ItemProps.svelte

@@ -14,6 +14,10 @@
         }
     });
 
+    function byName(a,b){
+        return a.name.localeCompare(b.name);
+    }
+
     async function onclick(){
         const url = api('stock/property');
         const data = {
@@ -29,6 +33,10 @@
             body:JSON.stringify(data)
         });
         if (res.ok){
+            const prop = await res.json();
+            const id = prop.id;
+            item.properties = item.properties.filter(p => p.id != id);
+            item.properties.push(prop);
             yikes();
         } else error(res);
     }
@@ -39,7 +47,7 @@
 
 <table>
     <tbody>
-        {#each item.properties as prop}
+        {#each item.properties.toSorted(byName) as prop}
         <tr>
             <td>
                 {prop.name}