add groups, add items

express-server/db-connect/db-connect.js

@@ -109,6 +109,33 @@ async function deleteShoppinglist(sl_id) {
     }
 }
 
+//add group into shoppinglist
+
+async function addGroup(sl_id, name, color) {
+    try {
+        let grid = generate_group_id();
+        await nonQuery('INSERT INTO "Group" VALUES ($1, $2, $3, $4);', [grid, sl_id, name, color]);
+    } 
+    
+    catch (error) {
+        console.error(error);
+    }
+}
+
+//add item into group
+
+async function addItem(group_id, sl_id, name, count) {
+    try {
+        let itid = generate_item_id();
+        await nonQuery('INSERT INTO "Item" VALUES ($1, $2, $3, $4, $5);', [itid, group_id, sl_id, name, count]);
+    }
+
+    catch (error) {
+        console.error(error);
+    }
+}
+
+
 
 //sl_id generieren
 function generate_sl_id() {
@@ -122,6 +149,30 @@ function generate_sl_id() {
     return output;
 }
 
+//group_id generieren
+function generate_group_id() {
+    var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+    var output = "";
+
+    for(let i = 0; i < 8; i++) {
+        output += possible.charAt(Math.floor(Math.random() * possible.length));
+    }
+
+    return output;
+}
+
+//item_id generieren
+function generate_item_id() {
+    var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+    var output = "";
+
+    for(let i = 0; i < 8; i++) {
+        output += possible.charAt(Math.floor(Math.random() * possible.length));
+    }
+
+    return output;
+}
+
 function items_in_groups(groups, items) {
 
     let result = [];
@@ -140,5 +191,6 @@ function items_in_groups(groups, items) {
 }
 
 module.exports = {
-    getShoppinglistsAdmin, getShoppinglistsShared, newShoppinglist, displayShoppinglist, deleteShoppinglist
+    getShoppinglistsAdmin, getShoppinglistsShared, newShoppinglist, displayShoppinglist, deleteShoppinglist, addGroup,
+    addItem
 }