1 files changed, 84 insertions, 0 deletions
diff --git a/app/controllers/concerns/issuable_collections.rb b/app/controllers/concerns/issuable_collections.rb
new file mode 100644
index 00000000000..b5e79099e39
--- /dev/null
+++ b/app/controllers/concerns/issuable_collections.rb
@@ -0,0 +1,84 @@
+module IssuableCollections
+  extend ActiveSupport::Concern
+  include SortingHelper
+
+  included do
+    helper_method :issues_finder
+    helper_method :merge_requests_finder
+  end
+
+  private
+
+  def issues_collection
+    issues_finder.execute
+  end
+
+  def merge_requests_collection
+    merge_requests_finder.execute
+  end
+
+  def issues_finder
+    @issues_finder ||= issuable_finder_for(IssuesFinder)
+  end
+
+  def merge_requests_finder
+    @merge_requests_finder ||= issuable_finder_for(MergeRequestsFinder)
+  end
+
+  def issuable_finder_for(finder_class)
+    finder_class.new(current_user, filter_params)
+  end
+
+  def filter_params
+    set_sort_order_from_cookie
+    set_default_scope
+    set_default_state
+
+    @filter_params = params.dup
+    @filter_params[:sort] ||= default_sort_order
+
+    @sort = @filter_params[:sort]
+
+    if @project
+      @filter_params[:project_id] = @project.id
+    elsif @group
+      @filter_params[:group_id] = @group.id
+    else
+      # TODO: this filter ignore issues/mr created in public or
+      # internal repos where you are not a member. Enable this filter
+      # or improve current implementation to filter only issues you
+      # created or assigned or mentioned
+      # @filter_params[:authorized_only] = true
+    end
+
+    @filter_params
+  end
+
+  def set_default_scope
+    params[:scope] = 'all' if params[:scope].blank?
+  end
+
+  def set_default_state
+    params[:state] = 'opened' if params[:state].blank?
+  end
+
+  def set_sort_order_from_cookie
+    key = 'issuable_sort'
+
+    cookies[key] = params[:sort] if params[:sort].present?
+
+    # id_desc and id_asc are old values for these two.
+    cookies[key] = sort_value_recently_created if cookies[key] == 'id_desc'
+    cookies[key] = sort_value_oldest_created if cookies[key] == 'id_asc'
+
+    params[:sort] = cookies[key]
+  end
+
+  def default_sort_order
+    case params[:state]
+    when 'opened', 'all' then sort_value_recently_created
+    when 'merged', 'closed' then sort_value_recently_updated
+    else sort_value_recently_created
+    end
+  end
+end