more explicit name for semester filters variable

app/controllers/billing_expenses_controller.rb

@@ -5,7 +5,7 @@ class BillingExpensesController < ApplicationController
 
   def index
     authorize BillingExpense
-    @billing_semesters = BillingExpense.generate_semester_filters
+    @billing_semester_filters = BillingExpense.generate_semester_filters
     set_default_filter(semester: default_billing_semester)
     @q = policy_scope(BillingExpense).ransack(params[:q])
     @q.sorts = ['created_at desc'] if @q.sorts.empty?
@@ -95,7 +95,7 @@ class BillingExpensesController < ApplicationController
   end
 
   def set_billing_semesters
-    @billing_semesters = BillingExpense.generate_semester_filters(:billable)
+    @billing_semester_filters = BillingExpense.generate_semester_filters(:billable)
   end
 
   def set_selection
@@ -103,7 +103,7 @@ class BillingExpensesController < ApplicationController
   end
 
   def default_billing_semester
-    @billing_semesters.first[:value]
+    @billing_semester_filters.first[:value]
   end
 
   def selected_billing_semester

app/views/billing_expenses/index.html.slim

@@ -10,7 +10,7 @@ h1
     html: { class: 'form-ignore-changes', target: '_blank' } do |f|
   ul.list-inline
     li= clear_filter_button
-    = custom_filter_dropdown(t_attr(:semester, BillingExpense), *@billing_semesters)
+    = custom_filter_dropdown(t_attr(:semester, BillingExpense), *@billing_semester_filters)
     li=> f.button :submit, 'Auswahl herunterladen', data: { disable_with: false }
     li
       - if @volunteer

app/views/billing_expenses/new.html.slim

@@ -5,7 +5,7 @@ h1 Spesenformulare erfassen
 ul.list-inline
     = button_link navigation_glyph(:back), billing_expenses_path
     li= clear_filter_button
-    = custom_filter_dropdown(t_attr(:semester, BillingExpense), *@billing_semesters)
+    = custom_filter_dropdown(t_attr(:semester, BillingExpense), *@billing_semester_filters)
 
 = simple_form_for @billing_expense do |f|
   = hidden_field_tag 'selected_semester', @selected_billing_semester