Find label in issues_finder

app/controllers/concerns/issues_action.rb

@@ -6,7 +6,7 @@ module IssuesAction
     @issues = @issues.page(params[:page]).per(ApplicationController::PER_PAGE)
     @issues = @issues.preload(:author, :project)
 
-    @label = Label.where(project: @projects).find_by(title: params[:label_name])
+    @label = @issuable_finder.labels.first
 
     respond_to do |format|
       format.html

app/controllers/concerns/merge_requests_action.rb

@@ -6,6 +6,6 @@ module MergeRequestsAction
     @merge_requests = @merge_requests.page(params[:page]).per(ApplicationController::PER_PAGE)
     @merge_requests = @merge_requests.preload(:author, :target_project)
 
-    @label = Label.where(project: @projects).find_by(title: params[:label_name])
+    @label = @issuable_finder.labels.first
   end
 end

app/finders/issuable_finder.rb

@@ -119,6 +119,20 @@ class IssuableFinder
     labels? && params[:label_name] == Label::None.title
   end
 
+  def labels
+    return @labels if defined?(@labels)
+
+    if labels? && !filter_by_no_label?
+      @labels = Label.where(title: label_names)
+
+      if projects
+        @labels = labels.where(project: projects)
+      end
+    else
+      @labels = Label.none
+    end
+  end
+
   def assignee?
     params[:assignee_id].present?
   end
@@ -253,8 +267,6 @@ class IssuableFinder
           joins("LEFT OUTER JOIN label_links ON label_links.target_type = '#{klass.name}' AND label_links.target_id = #{klass.table_name}.id").
           where(label_links: { id: nil })
       else
-        label_names = params[:label_name].split(",")
-
         items = items.joins(:labels).where(labels: { title: label_names })
 
         if projects
@@ -266,6 +278,10 @@ class IssuableFinder
     items
   end
 
+  def label_names
+    params[:label_name].split(',')
+  end
+
   def current_user_related?
     params[:scope] == 'created-by-me' || params[:scope] == 'authored' || params[:scope] == 'assigned-to-me'
   end