slight tweaks

frontend/src/components/UnivMap.js

@@ -10,7 +10,10 @@ import {
 
 class UnivMap extends Component {
     componentDidMount() {
-        this.props.fetchData('http://127.0.0.1:8000/api/university');
+        if ( this.props.universities.length==0 || this.props.invalidated){
+            console.log("here mother uc", this.props.universities);
+            this.props.fetchData('http://127.0.0.1:8000/api/university');
+        }
     }
 
     componentDidUpdate(){
@@ -21,6 +24,14 @@ class UnivMap extends Component {
         }
     }
 
+
+
+    componentWillUnmount() {
+        console.log("ça serait bien de save la config de la carte...");
+    }
+
+
+
     render() {
         if (this.props.hasError) {
             return <p>Sorry! There was an error loading the items</p>;

frontend/src/components/UnivMapReloadButton.js

@@ -21,7 +21,7 @@ class UnivMapReloadButton extends Component {
         const { classes } = this.props;
         return (
             <IconButton
-                onClick={() => { this.props.invalidate() }}
+                onClick={() => { this.props.invalidate(true) }}
                 className={classes.floatRight}
             >
                 <CachedIcon />
@@ -40,7 +40,7 @@ const mapStateToProps = (state) => {
 
 const mapDispatchToProps = (dispatch) => {
     return {
-        invalidate: () => dispatch(universitiesInvalidated(true))
+        invalidate: (bool) => dispatch(universitiesInvalidated(bool))
     };
 };