diff --git a/assets/scripts/app/models/account.coffee b/assets/scripts/app/models/account.coffee
index f936df1d..3d29fc60 100644
--- a/assets/scripts/app/models/account.coffee
+++ b/assets/scripts/app/models/account.coffee
@@ -1,6 +1,6 @@
 require 'travis/model'
 
-@Travis.Account = Travis.Model.extend
+Travis.Account = Travis.Model.extend
   login:       Ember.attr('string')
   name:        Ember.attr('string')
   type:        Ember.attr('string')
@@ -8,10 +8,6 @@ require 'travis/model'
   subscribed: Ember.attr(Boolean)
   education: Ember.attr(Boolean)
 
-  urlGithub: (->
-    "#{Travis.config.source_endpoint}/#{@get('login')}"
-  ).property()
-
   # TODO: maybe it would be good to add a "default" value for Ember.attr
   reposCount: (->
     @get('_reposCount') || 0
diff --git a/assets/scripts/app/models/branch.coffee b/assets/scripts/app/models/branch.coffee
index 9f6e66f7..6defebec 100644
--- a/assets/scripts/app/models/branch.coffee
+++ b/assets/scripts/app/models/branch.coffee
@@ -1,5 +1,7 @@
 require 'travis/model'
 
+Repo = Travis.Repo
+
 @Travis.Branch = Travis.Model.extend
   repoId:       Ember.attr('number', key: 'repository_id')
   commitId:     Ember.attr('number')
@@ -15,7 +17,7 @@ require 'travis/model'
   commit: Ember.belongsTo('Travis.Commit')
 
   repo: (->
-    Travis.Repo.find @get('repoId')  if @get('repoId')
+    Repo.find @get('repoId')  if @get('repoId')
   ).property('repoId')
 
   updateTimes: ->
diff --git a/assets/scripts/app/models/build.coffee b/assets/scripts/app/models/build.coffee
index da755cd7..180cd9dd 100644
--- a/assets/scripts/app/models/build.coffee
+++ b/assets/scripts/app/models/build.coffee
@@ -1,7 +1,14 @@
 require 'travis/model'
 require 'models/extensions'
+require 'utils/duration_calculations'
 
-@Travis.Build = Travis.Model.extend Travis.DurationCalculations,
+compact = Travis.Helpers.compact
+configKeys = Travis.Helpers.configKeys
+Ajax = Travis.ajax
+config_keys_map = Travis.CONFIG_KEYS_MAP
+DurationCalculations = Travis.DurationCalculations
+
+@Travis.Build = Travis.Model.extend DurationCalculations,
   repositoryId:     Ember.attr('number')
   commitId:         Ember.attr('number')
 
@@ -26,7 +33,7 @@ require 'models/extensions'
   config: (->
     console.log('config')
     if config = @get('_config')
-      Travis.Helpers.compact(config)
+      compact(config)
     else
       return if @get('isFetchingConfig')
       @set 'isFetchingConfig', true
@@ -77,7 +84,7 @@ require 'models/extensions'
     keys = []
 
     @get('jobs').forEach (job) ->
-      Travis.Helpers.configKeys(job.get('config')).forEach (key) ->
+      configKeys(job.get('config')).forEach (key) ->
         keys.pushObject key unless keys.contains key
 
     keys
@@ -86,7 +93,7 @@ require 'models/extensions'
   configKeys: (->
     keys = @get('rawConfigKeys')
     headers = ['Job', 'Duration', 'Finished']
-    $.map(headers.concat(keys), (key) -> if Travis.CONFIG_KEYS_MAP.hasOwnProperty(key) then Travis.CONFIG_KEYS_MAP[key] else key)
+    $.map(headers.concat(keys), (key) -> if config_keys_map.hasOwnProperty(key) then config_keys_map[key] else key)
   ).property('rawConfigKeys.length')
 
   canCancel: (->
@@ -94,11 +101,11 @@ require 'models/extensions'
   ).property('isFinished', 'jobs.@each.canCancel')
 
   cancel: (->
-    Travis.ajax.post "/builds/#{@get('id')}/cancel"
+    Ajax.post "/builds/#{@get('id')}/cancel"
   )
 
   requeue: ->
-    Travis.ajax.post "/builds/#{@get('id')}/restart"
+    Ajax.post "/builds/#{@get('id')}/restart"
 
   formattedFinishedAt: (->
     if finishedAt = @get('finishedAt')
diff --git a/assets/scripts/app/models/extensions.coffee b/assets/scripts/app/models/extensions.coffee
index ce334f01..8b137891 100644
--- a/assets/scripts/app/models/extensions.coffee
+++ b/assets/scripts/app/models/extensions.coffee
@@ -1,14 +1 @@
-Travis.DurationCalculations = Ember.Mixin.create
-  duration: (->
-    if @get('notStarted')
-      null
-    else if duration = @get('_duration')
-      duration
-    else
-      Travis.Helpers.durationFrom(@get('startedAt'), @get('finishedAt'))
-  ).property('_duration', 'finishedAt', 'startedAt', 'notStarted', '_finishedAt', '_startedAt')
 
-  updateTimes: ->
-    unless @get('isFinished')
-      @notifyPropertyChange '_duration'
-      @notifyPropertyChange 'finished_at'
diff --git a/assets/scripts/app/models/hook.coffee b/assets/scripts/app/models/hook.coffee
index 350706aa..7af2a5a6 100644
--- a/assets/scripts/app/models/hook.coffee
+++ b/assets/scripts/app/models/hook.coffee
@@ -1,5 +1,8 @@
 require 'travis/model'
 
+loadOrMerge = Travis.loadOrMerge
+Repo = Travis.Repo
+
 @Travis.Hook = Travis.Model.extend
   name:        Ember.attr('string')
   ownerName:   Ember.attr('string')
@@ -34,6 +37,6 @@ require 'travis/model'
     # I add an info which we have here to the store - this will allow to display
     # a link to the repo and if more info is needed, it will be requested when the
     # link is used
-    Travis.loadOrMerge(Travis.Repo, @getProperties('id', 'slug', 'name', 'ownerName'), skipIfExists: true)
-    Travis.Repo.find(@get('id'))
+    loadOrMerge(Repo, @getProperties('id', 'slug', 'name', 'ownerName'), skipIfExists: true)
+    Repo.find(@get('id'))
   ).property('id')
diff --git a/assets/scripts/app/models/job.coffee b/assets/scripts/app/models/job.coffee
index 62824c60..17a28280 100644
--- a/assets/scripts/app/models/job.coffee
+++ b/assets/scripts/app/models/job.coffee
@@ -1,7 +1,12 @@
 require 'travis/model'
 require 'models/extensions'
+require 'models/log'
 
-@Travis.Job = Travis.Model.extend Travis.DurationCalculations,
+DurationCalculations = Travis.DurationCalculations
+Log = Travis.Log
+compact = Travis.Helpers.compact
+
+@Travis.Job = Travis.Model.extend DurationCalculations,
   repoId:         Ember.attr('string', key: 'repository_id')
   buildId:        Ember.attr('string')
   commitId:       Ember.attr('string')
@@ -25,7 +30,7 @@ require 'models/extensions'
 
   log: ( ->
     @set('isLogAccessed', true)
-    Travis.Log.create(job: this)
+    Log.create(job: this)
   ).property()
 
   startedAt: (->
@@ -44,7 +49,7 @@ require 'models/extensions'
 
   config: (->
     if config = @get('_config')
-      Travis.Helpers.compact(config)
+      compact(config)
     else
       return if @get('isFetchingConfig')
       @set 'isFetchingConfig', true
@@ -87,11 +92,11 @@ require 'models/extensions'
   ).property('state')
 
   cancel: (->
-    Travis.ajax.post "/jobs/#{@get('id')}/cancel"
+    Ajax.post "/jobs/#{@get('id')}/cancel"
   )
 
   removeLog: ->
-    Travis.ajax.patch("/jobs/#{@get('id')}/log").then =>
+    Ajax.patch("/jobs/#{@get('id')}/log").then =>
       @reloadLog()
 
   reloadLog: ->
@@ -99,7 +104,7 @@ require 'models/extensions'
     @get('log').fetch()
 
   requeue: ->
-    Travis.ajax.post "/jobs/#{@get('id')}/restart"
+    Ajax.post "/jobs/#{@get('id')}/restart"
 
   appendLog: (part) ->
     @get('log').append part
diff --git a/assets/scripts/app/models/log.coffee b/assets/scripts/app/models/log.coffee
index 08fb1973..441cd5cd 100644
--- a/assets/scripts/app/models/log.coffee
+++ b/assets/scripts/app/models/log.coffee
@@ -1,6 +1,41 @@
 require 'travis/model'
 require 'travis/log_chunks'
 
+Ajax = Travis.ajax
+Job = Travis.Job
+
+Request = Em.Object.extend
+  HEADERS:
+    accept: 'application/json; chunked=true; version=2, text/plain; version=2'
+
+  run: ->
+    Ajax.ajax "/jobs/#{@id}/log?cors_hax=true", 'GET',
+      dataType: 'text'
+      headers: @HEADERS
+      success: (body, status, xhr) => Ember.run(this, -> @handle(body, status, xhr))
+
+  handle: (body, status, xhr) ->
+    if Travis.config.pro
+      Job.find(@get('id')).get('log').set('token', xhr.getResponseHeader('X-Log-Access-Token'))
+
+    if xhr.status == 204
+      $.ajax(url: @redirectTo(xhr), type: 'GET', success: @handlers.text)
+    else if @isJson(xhr, body)
+      @handlers.json(body)
+    else
+      @handlers.text(body)
+
+  redirectTo: (xhr) ->
+    # Firefox can't see the Location header on the xhr response due to the wrong
+    # status code 204. Should be some redirect code but that doesn't work with CORS.
+    xhr.getResponseHeader('Location')
+
+  isJson: (xhr, body) ->
+    # Firefox can't see the Content-Type header on the xhr response due to the wrong
+    # status code 204. Should be some redirect code but that doesn't work with CORS.
+    type = xhr.getResponseHeader('Content-Type') || ''
+    type.indexOf('json') > -1
+
 @Travis.Log = Em.Object.extend
   version: 0 # used to refresh log on requeue
   isLoaded: false
@@ -13,7 +48,7 @@ require 'travis/log_chunks'
     data['part_numbers'] = partNumbers if partNumbers
     data['after'] = after if after
 
-    Travis.ajax.ajax "/jobs/#{@get('job.id')}/log", 'GET',
+    Ajax.ajax "/jobs/#{@get('job.id')}/log", 'GET',
       dataType: 'json'
       headers:
         accept: 'application/json; chunked=true; version=2'
@@ -44,7 +79,7 @@ require 'travis/log_chunks'
           @set('removed', true)
         @loadParts(json['log']['parts'])
       text: (text) => @loadText(text)
-    Travis.Log.Request.create(id: id, handlers: handlers).run() if id = @get('job.id')
+    Request.create(id: id, handlers: handlers).run() if id = @get('job.id')
 
   clear: ->
     @clearParts()
@@ -63,35 +98,3 @@ require 'travis/log_chunks'
     console.log 'log model: load text' if Log.DEBUG
     @append(number: 1, content: text, final: true)
     @set('isLoaded', true)
-
-Travis.Log.Request = Em.Object.extend
-  HEADERS:
-    accept: 'application/json; chunked=true; version=2, text/plain; version=2'
-
-  run: ->
-    Travis.ajax.ajax "/jobs/#{@id}/log?cors_hax=true", 'GET',
-      dataType: 'text'
-      headers: @HEADERS
-      success: (body, status, xhr) => Ember.run(this, -> @handle(body, status, xhr))
-
-  handle: (body, status, xhr) ->
-    if Travis.config.pro
-      Travis.Job.find(@get('id')).get('log').set('token', xhr.getResponseHeader('X-Log-Access-Token'))
-
-    if xhr.status == 204
-      $.ajax(url: @redirectTo(xhr), type: 'GET', success: @handlers.text)
-    else if @isJson(xhr, body)
-      @handlers.json(body)
-    else
-      @handlers.text(body)
-
-  redirectTo: (xhr) ->
-    # Firefox can't see the Location header on the xhr response due to the wrong
-    # status code 204. Should be some redirect code but that doesn't work with CORS.
-    xhr.getResponseHeader('Location')
-
-  isJson: (xhr, body) ->
-    # Firefox can't see the Content-Type header on the xhr response due to the wrong
-    # status code 204. Should be some redirect code but that doesn't work with CORS.
-    type = xhr.getResponseHeader('Content-Type') || ''
-    type.indexOf('json') > -1
diff --git a/assets/scripts/app/models/repo.coffee b/assets/scripts/app/models/repo.coffee
index 2e9a1cd0..f4d9a384 100644
--- a/assets/scripts/app/models/repo.coffee
+++ b/assets/scripts/app/models/repo.coffee
@@ -1,5 +1,14 @@
 require 'travis/expandable_record_array'
 require 'travis/model'
+require 'helpers/helpers'
+
+EnvVar = Travis.EnvVar
+Build  = Travis.Build
+SshKey = Travis.SshKey
+ExpandableRecordArray = Travis.ExpandableRecordArray
+Event = Travis.Event
+durationFrom = Travis.Helpers.durationFrom
+Ajax = Travis.ajax
 
 @Travis.Repo = Travis.Model.extend
   id:                  Ember.attr('string')
@@ -28,22 +37,22 @@ require 'travis/model'
     @filter( (repo) -> repo.get('lastBuildId') )
 
   sshKey: (->
-    Travis.SshKey.find(@get('id'))
+    SshKey.find(@get('id'))
   )
 
   envVars: (->
     id = @get('id')
-    envVars = Travis.EnvVar.find repository_id: id
+    envVars = EnvVar.find repository_id: id
 
     # TODO: move to controller
-    array  = Travis.ExpandableRecordArray.create
-      type: Travis.EnvVar
+    array  = ExpandableRecordArray.create
+      type: EnvVar
       content: Ember.A([])
 
     array.load(envVars)
 
-    globalEnvVars = Ember.RecordArray.create({ modelClass: Travis.EnvVar, content: Ember.A([]) })
-    Travis.EnvVar.registerRecordArray(globalEnvVars)
+    globalEnvVars = Ember.RecordArray.create({ modelClass: EnvVar, content: Ember.A([]) })
+    EnvVar.registerRecordArray(globalEnvVars)
 
     array.observe(globalEnvVars, (envVar) -> envVar.get('isLoaded') && envVar.get('repo.id') == id )
 
@@ -51,18 +60,18 @@ require 'travis/model'
   ).property()
 
   allBuilds: (->
-    recordArray = Ember.RecordArray.create({ modelClass: Travis.Build, content: Ember.A([]) })
-    Travis.Build.registerRecordArray(recordArray)
+    recordArray = Ember.RecordArray.create({ modelClass: Build, content: Ember.A([]) })
+    Build.registerRecordArray(recordArray)
     recordArray
   ).property()
 
   builds: (->
     id = @get('id')
-    builds = Travis.Build.byRepoId id, event_type: 'push'
+    builds = Build.byRepoId id, event_type: 'push'
 
     # TODO: move to controller
-    array  = Travis.ExpandableRecordArray.create
-      type: Travis.Build
+    array  = ExpandableRecordArray.create
+      type: Build
       content: Ember.A([])
 
     array.load(builds)
@@ -75,9 +84,9 @@ require 'travis/model'
 
   pullRequests: (->
     id = @get('id')
-    builds = Travis.Build.byRepoId id, event_type: 'pull_request'
-    array  = Travis.ExpandableRecordArray.create
-      type: Travis.Build
+    builds = Build.byRepoId id, event_type: 'pull_request'
+    array  = ExpandableRecordArray.create
+      type: Build
       content: Ember.A([])
 
     array.load(builds)
@@ -89,11 +98,11 @@ require 'travis/model'
   ).property()
 
   branches: (->
-    Travis.Build.branches repoId: @get('id')
+    Build.branches repoId: @get('id')
   ).property()
 
   events: (->
-    Travis.Event.byRepoId @get('id')
+    Event.byRepoId @get('id')
   ).property()
 
   owner: (->
@@ -106,7 +115,7 @@ require 'travis/model'
 
   lastBuildDuration: (->
     duration = @get('_lastBuildDuration')
-    duration = Travis.Helpers.durationFrom(@get('lastBuildStartedAt'), @get('lastBuildFinishedAt')) unless duration
+    duration = durationFrom(@get('lastBuildStartedAt'), @get('lastBuildFinishedAt')) unless duration
     duration
   ).property('_lastBuildDuration', 'lastBuildStartedAt', 'lastBuildFinishedAt')
 
@@ -130,16 +139,16 @@ require 'travis/model'
     @notifyPropertyChange 'lastBuildDuration'
 
   regenerateKey: (options) ->
-    Travis.ajax.ajax '/repos/' + @get('id') + '/key', 'post', options
+    Ajax.ajax '/repos/' + @get('id') + '/key', 'post', options
 
   fetchSettings: ->
-    Travis.ajax.ajax('/repos/' + @get('id') + '/settings', 'get', forceAuth: true).then (data) ->
+    Ajax.ajax('/repos/' + @get('id') + '/settings', 'get', forceAuth: true).then (data) ->
       data['settings']
 
   saveSettings: (settings) ->
-    Travis.ajax.ajax('/repos/' + @get('id') + '/settings', 'patch', data: { settings: settings })
+    Ajax.ajax('/repos/' + @get('id') + '/settings', 'patch', data: { settings: settings })
 
-@Travis.Repo.reopenClass
+Travis.Repo.reopenClass
   recent: ->
     @find()
 
@@ -154,12 +163,12 @@ require 'travis/model'
 
   withLastBuild: ->
     filtered = Ember.FilteredRecordArray.create(
-      modelClass: Travis.Repo
+      modelClass: this
       filterFunction: (repo) -> repo.get('lastBuildId')
       filterProperties: ['lastBuildId']
     )
 
-    Travis.Repo.fetch().then (array) ->
+    @fetch().then (array) ->
       filtered.updateFilter()
       filtered.set('isLoaded', true)
 
diff --git a/assets/scripts/app/models/user.coffee b/assets/scripts/app/models/user.coffee
index d6467085..ed8165db 100644
--- a/assets/scripts/app/models/user.coffee
+++ b/assets/scripts/app/models/user.coffee
@@ -1,6 +1,10 @@
 require 'travis/ajax'
 require 'travis/model'
 
+Ajax = Travis.ajax
+trigger = Travis.trigger
+Account = Travis.Account
+
 @Travis.User = Travis.Model.extend
   _name:       Ember.attr('string', key: 'name')
   email:       Ember.attr('string')
@@ -30,7 +34,7 @@ require 'travis/model'
   ).property()
 
   _rawPermissions: (->
-    Travis.ajax.get('/users/permissions')
+    Ajax.get('/users/permissions')
   ).property()
 
   permissions: (->
@@ -63,12 +67,12 @@ require 'travis/model'
 
   sync: ->
     self = this
-    Travis.ajax.post('/users/sync', {}, ->
+    Ajax.post('/users/sync', {}, ->
       self.setWithSession('isSyncing', true)
     )
 
   poll: ->
-    Travis.ajax.get '/users', (data) =>
+    Ajax.get '/users', (data) =>
       if data.user.is_syncing
         self = this
         setTimeout ->
@@ -77,10 +81,10 @@ require 'travis/model'
       else
         @set('isSyncing', false)
         @setWithSession('syncedAt', data.user.synced_at)
-        Travis.trigger('user:synced', data.user)
+        trigger('user:synced', data.user)
 
         # need to pass any param to trigger findQuery
-        Travis.Account.find(foo: '')
+        Account.find(foo: '')
 
   setWithSession: (name, value) ->
     @set(name, value)
diff --git a/assets/scripts/app/utils/duration_calculations.coffee b/assets/scripts/app/utils/duration_calculations.coffee
new file mode 100644
index 00000000..42062e50
--- /dev/null
+++ b/assets/scripts/app/utils/duration_calculations.coffee
@@ -0,0 +1,18 @@
+require 'helpers/helpers'
+
+durationFrom = Travis.Helpers.durationFrom
+
+Travis.DurationCalculations = Ember.Mixin.create
+  duration: (->
+    if @get('notStarted')
+      null
+    else if duration = @get('_duration')
+      duration
+    else
+      durationFrom(@get('startedAt'), @get('finishedAt'))
+  ).property('_duration', 'finishedAt', 'startedAt', 'notStarted', '_finishedAt', '_startedAt')
+
+  updateTimes: ->
+    unless @get('isFinished')
+      @notifyPropertyChange '_duration'
+      @notifyPropertyChange 'finished_at'