Create and edit characteristics

app/pods/protected/characteristics/show/measurements-table/component.js

@@ -1,6 +1,10 @@
 import Ember from 'ember';
 
 export default Ember.Component.extend({
+  measurementsPresent: function() {
+    return this.get('model.measurements.length') > 0;
+  }.property('model.measurements'),
+
   measurementsTable: function() {
     let measurements = this.get('model.measurements');
     let table = [];

app/pods/protected/characteristics/show/measurements-table/template.hbs

@@ -1,3 +1,4 @@
+{{#if measurementsPresent}}
 <table class="flakes-table">
   <thead>
     <tr>
@@ -24,3 +25,6 @@
     {{/each}}
   </tbody>
 </table>
+{{else}}
+No measurements on record.
+{{/if}}