Show number before trust level. Also use less memory for trust levels.

app/assets/javascripts/admin/models/admin_user.js

@@ -62,23 +62,17 @@ Discourse.AdminUser = Discourse.User.extend({
     return this.get('username').toLowerCase();
   }).property('username'),
 
-  trustLevel: function() {
-    var site = Discourse.Site.instance();
-    return site.get('trust_levels').findProperty('id', this.get('trust_level'));
-  }.property('trust_level'),
-
   setOriginalTrustLevel: function() {
     this.set('originalTrustLevel', this.get('trust_level'));
   },
 
   trustLevels: function() {
-    var site = Discourse.Site.instance();
-    return site.get('trust_levels');
+    return Discourse.Site.instance().get('trustLevels').map(function (tl) {
+      return {id: tl.get('id'), name: tl.get('detailedName') };
+    });
   }.property('trust_level'),
 
-  dirty: function() {
-    return this.get('originalTrustLevel') !== parseInt(this.get('trustLevel.id'), 10);
-  }.property('originalTrustLevel', 'trustLevel.id'),
+  dirty: Discourse.computed.propertyNotEqual('originalTrustLevel', 'trustLevel.id'),
 
   saveTrustLevel: function() {
     Discourse.ajax("/admin/users/" + this.id + "/trust_level", {

app/assets/javascripts/admin/templates/user.js.handlebars

@@ -165,7 +165,7 @@
   <div class='display-row'>
     <div class='field'>{{i18n trust_level}}</div>
     <div class="value">
-      {{combobox content=trustLevels value=trustLevel.id }}
+      {{combobox content=trustLevels value=trust_level }}
     </div>
     <div class="controls">
     {{#if dirty}}

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

@@ -14,6 +14,20 @@ Discourse.computed = {
     }).property(p1, p2);
   },
 
+  /**
+    Returns whether two properties are not equal to each other.
+
+    @method propertyNotEqual
+    @params {String} p1 the first property
+    @params {String} p2 the second property
+    @return {Function} computedProperty function
+  **/
+  propertyNotEqual: function(p1, p2) {
+    return Ember.computed(function() {
+      return this.get(p1) !== this.get(p2);
+    }).property(p1, p2);
+  },
+
   /**
     Uses an Ember String `fmt` call to format a string. See:
     http://emberjs.com/api/classes/Ember.String.html#method_fmt

app/assets/javascripts/discourse/models/site.js

@@ -49,11 +49,19 @@ Discourse.Site.reopenClass({
         return Discourse.Category.create(c);
       });
     }
+
+    if (result.trust_levels) {
+      result.trustLevels = result.trust_levels.map(function (tl) {
+        return Discourse.TrustLevel.create(tl);
+      });
+
+      delete result.trust_levels;
+    }
+
     if (result.post_action_types) {
       result.postActionByIdLookup = Em.Object.create();
       result.post_action_types = _.map(result.post_action_types,function(p) {
-        var actionType;
-        actionType = Discourse.PostActionType.create(p);
+        var actionType = Discourse.PostActionType.create(p);
         result.postActionByIdLookup.set("action" + p.id, actionType);
         return actionType;
       });

app/assets/javascripts/discourse/models/trust_level.js

@@ -0,0 +1,11 @@
+/**
+  Represents a user's trust level in the system
+
+  @class TrustLevel
+  @extends Discourse.Model
+  @namespace Discourse
+  @module Discourse
+**/
+Discourse.TrustLevel = Discourse.Model.extend({
+  detailedName: Discourse.computed.fmt('id', 'name', '%@ - %@')
+});

app/assets/javascripts/discourse/models/user.js

@@ -99,7 +99,7 @@ Discourse.User = Discourse.Model.extend({
     @type {Integer}
   **/
   trustLevel: function() {
-    return Discourse.Site.instance().get('trust_levels').findProperty('id', this.get('trust_level'));
+    return Discourse.Site.instance().get('trustLevels').findProperty('id', parseInt(this.get('trust_level'), 10));
   }.property('trust_level'),
 
   /**

test/javascripts/components/computed_test.js

@@ -2,6 +2,7 @@ module("Discourse.Computed");
 
 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 %@"),
   userUrl: Discourse.computed.url('username', "/users/%@")
@@ -14,11 +15,21 @@ test("propertyEqual", function() {
   });
 
   ok(t.get('same'), "it is true when the properties are the same");
-
   t.set('biscuits', 9);
   ok(!t.get('same'), "it isn't true when one property is different");
 });
 
+test("propertyNotEqual", function() {
+  var t = testClass.create({
+    cookies: 10,
+    biscuits: 10
+  });
+
+  ok(!t.get('diff'), "it isn't true when the properties are the same");
+  t.set('biscuits', 9);
+  ok(t.get('diff'), "it is true when one property is different");
+});
+
 
 test("fmt", function() {
   var t = testClass.create({

test/javascripts/models/site_test.js

@@ -7,5 +7,6 @@ test('instance', function(){
   present(site, "We have a current site singleton");
   present(site.get('categories'), "The instance has a list of categories");
   present(site.get('flagTypes'), "The instance has a list of flag types");
+  present(site.get('trustLevels'), "The instance has a list of trust levels");
 
 });