New feature: allow administrators to dismiss missing manifest warnings

app/controllers/dashboard_controller.rb

@@ -12,6 +12,14 @@ def widget
     end
   end
 
+  def dismiss_manifest
+    respond_to do |format|
+      @missing_manifest = MissingManifest.find(params[:id])
+      @missing_manifest.update_attributes :dismissed => true
+      format.js
+    end
+  end
+
   private
   def authorize_resource
     authorize! params[:action], :dashboard

app/models/missing_manifest.rb

@@ -9,9 +9,11 @@ class MissingManifest < ActiveRecord::Base
     else
       MissingManifest.where("created_at > ?", 7.days.ago)
     end
+    scope = scope.merge(not_dismissed)
     scope = scope.limit(options[:limit]) if options[:limit].present?
     scope.order("created_at DESC")
   }
+  scope :not_dismissed, where(:dismissed => false)
 
   def request_ip=(value)
     self.hostname = get_hostname(value)

app/views/dashboard/dismiss_manifest.js.erb

@@ -0,0 +1 @@
+$("#missing_manifest_<%= @missing_manifest.id %>").fadeOut();

app/views/widgets/_missing_manifests.html.erb

@@ -1,9 +1,9 @@
 <% if @widget.missing_manifests.present? %>
 	<% @widget.missing_manifests.each do |missing_manifest|%>
-		<div class="alert-message">
+		<div class="alert-message" id="missing_manifest_<%= missing_manifest.id %>">
 			<p>
 				<strong><%= missing_manifest %></strong> request manifest for "<strong><%= missing_manifest.identifier %></strong>"
-				<small><%= missing_manifest.request_time %></small>
+				<small><%= missing_manifest.request_time %> — <%= link_to "dismiss", dismiss_manifest_path(missing_manifest), :remote => true %></small>
 			</p>
 		</div>
 	<% end %>

config/routes.rb

@@ -87,6 +87,7 @@
 
   match 'dashboard' => "dashboard#index", :as => "dashboard"
   match 'dashboard/widget/:name' => 'dashboard#widget', :as => "widget"
+  match 'dashboard/dismiss_manifest/:id' => 'dashboard#dismiss_manifest', :as => "dismiss_manifest"
 
   match "permissions" => "permissions#index", :as => "permissions", :via => "GET"
   match "permissions/edit/:principal_pointer(/:unit_id)" => "permissions#edit", :as => "edit_permissions", :via => "GET"

db/migrate/20130418013709_add_dismissed_to_missing_manifests.rb

@@ -0,0 +1,5 @@
+class AddDismissedToMissingManifests < ActiveRecord::Migration
+  def change
+    add_column :missing_manifests, :dismissed, :boolean, :default => false
+  end
+end