Adding message on admin when there is no role that can estimate and disabling edition in backlog when needed

app/coffee/modules/admin/roles.coffee

@@ -51,6 +51,7 @@ class RolesController extends mixOf(taiga.Controller, taiga.PageMixin, taiga.Fil
 
         @scope.sectionName = "Permissions" #i18n
         @scope.project = {}
+        @scope.anyComputableRole = true
 
         promise = @.loadInitialData()
 
@@ -67,6 +68,8 @@ class RolesController extends mixOf(taiga.Controller, taiga.PageMixin, taiga.Fil
         return @rs.projects.get(@scope.projectId).then (project) =>
             @scope.project = project
             @scope.$emit('project:loaded', project)
+            @scope.anyComputableRole = _.some(_.map(project.roles, (point) -> point.computable))
+
             return project
 
     loadRoles: ->
@@ -104,6 +107,7 @@ class RolesController extends mixOf(taiga.Controller, taiga.PageMixin, taiga.Fil
         return @confirm.askChoice(title, subtitle, choices).then (response) =>
             promise = @repo.remove(@scope.role, {moveTo: response.selected})
             promise.then =>
+                @.loadProject()
                 @.loadRoles().finally ->
                     response.finish()
             promise.then null, =>
@@ -112,6 +116,7 @@ class RolesController extends mixOf(taiga.Controller, taiga.PageMixin, taiga.Fil
     setComputable: debounce 2000, ->
         onSuccess = =>
             @confirm.notify("success")
+            @.loadProject()
 
         onError = =>
             @confirm.notify("error")
@@ -168,6 +173,7 @@ NewRoleDirective = ($tgrepo, $confirm) ->
                     $scope.roles.push(role)
                     $ctrl.setRole(role)
                     $el.find(".add-button").show()
+                    $ctrl.loadProject()
 
                 onError = ->
                     $confirm.notify("error")
@@ -326,6 +332,7 @@ RolePermissionsDirective = ($rootscope, $repo, $confirm) ->
                     renderResume(target.parents(".category-config"), categories[categoryId])
                     $rootscope.$broadcast("projects:reload")
                     $confirm.notify("success")
+                    $ctrl.loadProject()
 
                 onError = ->
                     $confirm.notify("error")

app/coffee/modules/backlog/main.coffee

@@ -771,6 +771,20 @@ UsPointsDirective = ($repo) ->
         if numberOfRoles == 1
             selectedRoleId = _.keys(us.points)[0]
 
+        computableRoles = _.filter($scope.project.roles, "computable")
+
+        roles = _.map computableRoles, (role) ->
+            pointId = us.points[role.id]
+            pointObj = $scope.pointsById[pointId]
+
+            role = _.clone(role, true)
+            role.points = if pointObj.value? then pointObj.value else "?"
+            return role
+
+        if roles.length == 0
+            $el.find(".icon-arrow-bottom").remove()
+            $el.find("a.us-points").addClass("not-clickable")
+
         renderPointsSelector = (us, roleId) ->
             # Prepare data for rendering
             points = _.map $scope.project.points, (point) ->
@@ -794,17 +808,6 @@ UsPointsDirective = ($repo) ->
             $el.find(".pop-points-open").popover().open()
 
         renderRolesSelector = (us) ->
-            # Prepare data for rendering
-            computableRoles = _.filter($scope.project.roles, "computable")
-
-            roles = _.map computableRoles, (role) ->
-                pointId = us.points[role.id]
-                pointObj = $scope.pointsById[pointId]
-
-                role = _.clone(role, true)
-                role.points = if pointObj.value? then pointObj.value else "?"
-                return role
-
             html = rolesTemplate({"roles": roles})
 
             # Render into DOM and show the new created element
@@ -845,6 +848,7 @@ UsPointsDirective = ($repo) ->
             renderPoints(us, null)
             selectedRoleId = null
 
+        if roles.length > 0
             $el.on "click", "a.us-points span", (event) ->
                 event.preventDefault()
                 event.stopPropagation()

app/partials/admin-roles.jade

@@ -21,6 +21,8 @@ block content
                 | {{ role.name }}
                 span ({{ role.members_count }} members with this role)
 
+            div(ng-hide="anyComputableRole") Be careful, no role in your project have can affect the user story estimation points.
+
             div.general-category
                 | When enabled, members assigned to this role will be able to estimate the point value for user stories
                 div.check