10029: Added a session id for every new workbench request, to be sent as a parameter...

[arvados.git] / apps / workbench / app / controllers / application_controller.rb

diff --git a/apps/workbench/app/controllers/application_controller.rb b/apps/workbench/app/controllers/application_controller.rb
index 0ed629403c41fb3b10ca545af37200515f711fee..cf9f22334e5008ce19bc17a8549f66caa417b8d0 100644 (file)
--- a/apps/workbench/app/controllers/application_controller.rb
+++ b/apps/workbench/app/controllers/application_controller.rb
@@ -18,6 +18,7 @@ class ApplicationController < ActionController::Base
   before_filter :check_user_profile, except: ERROR_ACTIONS
   before_filter :load_filters_and_paging_params, except: ERROR_ACTIONS
   before_filter :find_object_by_uuid, except: [:create, :index, :choose] + ERROR_ACTIONS
+  before_filter :set_client_session_id, except: ERROR_ACTIONS
   theme :select_theme
 
   begin
@@ -31,6 +32,12 @@ class ApplicationController < ActionController::Base
                 with: :render_exception)
   end
 
+  def set_client_session_id
+    # Session ID format: '<timestamp>-<9_digits_random_number>'
+    client_session_id = "#{Time.new.to_i}-#{sprintf('%09d', rand(0..10**9-1))}"
+    Thread.current[:client_session_id] = client_session_id
+  end
+
   def set_cache_buster
     response.headers["Cache-Control"] = "no-cache, no-store, max-age=0, must-revalidate"
     response.headers["Pragma"] = "no-cache"
@@ -115,7 +122,7 @@ class ApplicationController < ActionController::Base
   # Column names should always be qualified by a table name and a direction is optional, defaulting to asc
   # (e.g. "collections.name" or "collections.name desc").
   # If a column name is specified, that table will be sorted by that column.
-  # If there are objects from different models that will be shown (such as in Jobs and Pipelines tab),
+  # If there are objects from different models that will be shown (such as in Pipelines and processes tab),
   # then a sort column name can optionally be specified for each model, passed as an comma-separated list (e.g. "jobs.script, pipeline_instances.name")
   # Currently only one sort column name and direction can be specified for each model.
   def load_filters_and_paging_params
@@ -241,6 +248,28 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  helper_method :next_page_filters
+  def next_page_filters nextpage_operator
+    next_page_filters = @filters.reject do |attr, op, val|
+      (attr == 'created_at' and op == nextpage_operator) or
+      (attr == 'uuid' and op == 'not in')
+    end
+
+    if @objects.any?
+      last_created_at = @objects.last.created_at
+
+      last_uuids = []
+      @objects.each do |obj|
+        last_uuids << obj.uuid if obj.created_at.eql?(last_created_at)
+      end
+
+      next_page_filters += [['created_at', nextpage_operator, last_created_at]]
+      next_page_filters += [['uuid', 'not in', last_uuids]]
+    end
+
+    next_page_filters
+  end
+
   def show
     if !@object
       return render_not_found("object not found")