add stub for DB connection string validation

resources/frontend_client/app/metabase/metabase.services.js

@@ -19,6 +19,11 @@ MetabaseServices.factory('Metabase', ['$resource', '$cookies', function($resourc
             method:'POST',
             headers: {'X-CSRFToken': function() { return $cookies.csrftoken; }}
         },
+        validate_connection: {
+            url:'/api/meta/db/validate/',
+            method:'POST',
+            headers: {'X-CSRFToken': function() { return $cookies.csrftoken; }}
+        },
         db_get: {
             url:'/api/meta/db/:dbId',
             method:'GET',

resources/frontend_client/app/setup/setup.controllers.js

@@ -102,7 +102,6 @@ SetupControllers.controller('SetupConnection', ['$scope', '$routeParams', '$loca
                     conn_str: buildConnectionString($scope.connection)
                 }
             };
-
             function success (result) {
                 $location.path('/setup/data')
             }
@@ -111,13 +110,22 @@ SetupControllers.controller('SetupConnection', ['$scope', '$routeParams', '$loca
                 console.log('error', error)
             }
 
-            if(newConnection) {
-                Metabase.db_create(database, success, error);
-            } else {
-                // add the id since we're updating
-                database.id = $scope.database.id
-                Metabase.db_update(database, success, error);
-            }
+            // Validate the connection string
+            Metabase.validate_connection(database, function(result){
+                if(newConnection) {
+                    Metabase.db_create(database, success, error);
+                } else {
+                    // add the id since we're updating
+                    database.id = $scope.database.id
+                    Metabase.db_update(database, success, error);
+                }
+                
+            }, function(error){
+                console.log(error);
+                alert("Invalid Connection String - " + error.data.message);
+
+            })
+
         }
 }])
 

src/metabase/api/meta/db.clj

@@ -30,6 +30,13 @@
   {:timezones metabase.models.common/timezones
    :engines driver/available-drivers})
 
+;Stub function that will eventually validate a connection string
+(defendpoint POST "/validate" []
+    (if (= (rand-int 2) 1)
+        {:status 200 :body {:valid true}} 
+        (let [error-message (rand-nth ["Host not reachable" "Invalid Port" "Invalid User or Password"])]
+          {:status 400 :body {:valid false :message error-message}} )))
+
 (defendpoint GET "/:id" [id]
   (->404 (sel :one Database :id id)
          (hydrate :organization)))
@@ -72,4 +79,5 @@
            (sync/sync-tables db))
   {:status :ok})
 
+
 (define-routes)