Merge pull request #1513 from velesin/computed_self_refactoring

refactors Discourse.Computed to bind context to self

app/assets/javascripts/discourse/components/computed.js

@@ -40,9 +40,9 @@ Discourse.computed = {
     var args = Array.prototype.slice.call(arguments, 0);
     var format = args.pop();
     var computed = Ember.computed(function() {
-      var context = this;
+      var self = this;
       return I18n.t(format.fmt.apply(format, args.map(function (a) {
-        return context.get(a);
+        return self.get(a);
       })));
     });
     return computed.property.apply(computed, args);
@@ -61,9 +61,9 @@ Discourse.computed = {
     var args = Array.prototype.slice.call(arguments, 0);
     var format = args.pop();
     var computed = Ember.computed(function() {
-      var context = this;
+      var self = this;
       return format.fmt.apply(format, args.map(function (a) {
-        return context.get(a);
+        return self.get(a);
       }));
     });
     return computed.property.apply(computed, args);
@@ -82,9 +82,9 @@ Discourse.computed = {
     var args = Array.prototype.slice.call(arguments, 0);
     var format = args.pop();
     var computed = Ember.computed(function() {
-      var context = this;
+      var self = this;
       return Discourse.getURL(format.fmt.apply(format, args.map(function (a) {
-        return context.get(a);
+        return self.get(a);
       })));
     });
     return computed.property.apply(computed, args);

test/javascripts/components/computed_test.js

@@ -1,10 +1,22 @@
-module("Discourse.Computed");
+module("Discourse.Computed", {
+  setup: function() {
+    sinon.stub(I18n, "t", function(scope) {
+      return "%@ translated: " + scope;
+    });
+  },
+
+  teardown: function() {
+    I18n.t.restore();
+  }
+});
 
 var testClass = Em.Object.extend({
   same: Discourse.computed.propertyEqual('cookies', 'biscuits'),
   diff: Discourse.computed.propertyNotEqual('cookies', 'biscuits'),
   exclaimyUsername: Discourse.computed.fmt('username', "!!! %@ !!!"),
   multiple: Discourse.computed.fmt('username', 'mood', "%@ is %@"),
+  translatedExclaimyUsername: Discourse.computed.i18n('username', "!!! %@ !!!"),
+  translatedMultiple: Discourse.computed.i18n('username', 'mood', "%@ is %@"),
   userUrl: Discourse.computed.url('username', "/users/%@")
 });
 
@@ -38,12 +50,28 @@ test("fmt", function() {
   });
 
   equal(t.get('exclaimyUsername'), '!!! eviltrout !!!', "it inserts the string");
-  equal(t.get('multiple'), "eviltrout is happy");
+  equal(t.get('multiple'), "eviltrout is happy", "it inserts multiple strings");
 
   t.set('username', 'codinghorror');
-  equal(t.get('multiple'), "codinghorror is happy", "supports changing proerties");
+  equal(t.get('multiple'), "codinghorror is happy", "it supports changing properties");
   t.set('mood', 'ecstatic');
-  equal(t.get('multiple'), "codinghorror is ecstatic", "supports changing another property");
+  equal(t.get('multiple'), "codinghorror is ecstatic", "it supports changing another property");
+});
+
+
+test("i18n", function() {
+  var t = testClass.create({
+    username: 'eviltrout',
+    mood: "happy"
+  });
+
+  equal(t.get('translatedExclaimyUsername'), '%@ translated: !!! eviltrout !!!', "it inserts the string and then translates");
+  equal(t.get('translatedMultiple'), "%@ translated: eviltrout is happy", "it inserts multiple strings and then translates");
+
+  t.set('username', 'codinghorror');
+  equal(t.get('translatedMultiple'), "%@ translated: codinghorror is happy", "it supports changing properties");
+  t.set('mood', 'ecstatic');
+  equal(t.get('translatedMultiple'), "%@ translated: codinghorror is ecstatic", "it supports changing another property");
 });
 
 
@@ -56,5 +84,4 @@ test("url with a prefix", function() {
   Discourse.BaseUri = "/prefixed/";
   var t = testClass.create({ username: 'eviltrout' });
   equal(t.get('userUrl'), "/prefixed/users/eviltrout");
-
-});
+});