WIP: Example computed datatable

controllers/Countries.php

@@ -1,5 +1,6 @@
 <?php namespace Winter\Test\Controllers;
 
+use Input;
 use BackendMenu;
 use Backend\Classes\Controller;
 
@@ -24,4 +25,43 @@ public function __construct()
 
         BackendMenu::setContext('Winter.Test', 'test', 'countries');
     }
+
+    public function onGetDangerComputedValue()
+    {
+        $rowData = Input::get('rowData');
+        $dangerScore = 0;
+
+        switch ($rowData['type']) {
+            default:
+                $dangerScore += 1;
+                break;
+            case 'Minor':
+                $dangerScore += 5;
+                break;
+            case 'Major':
+                $dangerScore += 10;
+                break;
+            case 'Capital':
+                $dangerScore += 20;
+                break;
+        }
+
+        if (is_numeric($rowData['rating'])) {
+            $dangerScore += (int) $rowData['rating'];
+        }
+
+        if ($dangerScore >= 30) {
+            return 'Extremely Dangerous';
+        } else if ($dangerScore >= 20) {
+            return 'Dangerous';
+        } else if ($dangerScore >= 15) {
+            return 'Maintain Caution';
+        } else if ($dangerScore >= 10) {
+            return 'Keep Alert';
+        } else if ($dangerScore >= 5) {
+            return 'Low Risk';
+        } else {
+            return 'No Risk';
+        }
+    }
 }

models/country/fields.yaml

@@ -124,12 +124,18 @@ tabs:
                                             validation:
                                                 required:
                                                     message: Please select a type
+                                        danger:
+                                            title: Danger Index
+                                            type: computed
+                                            dependsOn: [rating, type]
+                                            callback: onGetDangerComputedValue
         locations:
             tab: Related
             label: Locations
             prompt: Add new location
             span: full
             type: repeater
+            minItems: 1
             form:
                 fields:
                     country: