Merge branch 'tutorial-builder'

src/components/Navbar.js

@@ -96,7 +96,7 @@ class Navbar extends Component {
             </div>
           </div>
           <List>
-            {[{text: 'Tutorials', icon: faChalkboardTeacher, link: "/tutorial"}, {text: 'Tutorial-Builder', icon: faFolderPlus, link: "/tutorial/builder"}, {text: 'Einstellungen', icon: faCog}].map((item, index) => (
+            {[{text: 'Tutorials', icon: faChalkboardTeacher, link: "/tutorial"}, {text: 'Tutorial-Builder', icon: faFolderPlus, link: "/tutorial/builder"}, {text: 'Einstellungen', icon: faCog, link: "/settings"}].map((item, index) => (
               <Link to={item.link} key={index} style={{textDecoration: 'none', color: 'inherit'}}>
                 <ListItem button onClick={this.toggleDrawer}>
                   <ListItemIcon><FontAwesomeIcon icon={item.icon}/></ListItemIcon>

src/components/Tutorial/Builder/BlocklyExample.js

@@ -108,7 +108,7 @@ class BlocklyExample extends Component {
           }
           catch(err){
             initialXml = null;
-            this.props.setError(this.props.index, 'xml');
+            // this.props.setError(this.props.index, 'xml');
           }
           return (
             <div style={{marginTop: '10px'}}>

src/components/Tutorial/Builder/Builder.js

@@ -145,7 +145,7 @@ class Builder extends Component {
         <Textfield value={this.props.title} property={'title'} label={'Titel'} error={this.props.error.title}/>
 
         {this.props.steps.map((step, i) =>
-          <Step step={step} index={i} />
+          <Step step={step} index={i} key={i}/>
         )}
 
         {/*submit or reset*/}

src/components/Tutorial/Builder/Id.js

@@ -36,7 +36,7 @@ class Id extends Component {
       }
     }
     else {
-      this.props.tutorialId(value);
+      this.props.tutorialId(value.toString());
       this.props.setError(undefined,'id');
     }
   };
@@ -81,7 +81,7 @@ class Id extends Component {
           endAdornment={
             <div style={{display: 'flex'}}>
               <Button
-                disabled={this.props.value === 1 || !this.props.value}
+                disabled={this.props.value === 1 || !Number.isInteger(this.props.value)}
                 onClick={() => this.handleCounter(-1)}
                 variant='contained'
                 color='primary'