Use enum-generated scopes/queries for `BulkImport` (#29975)

app/controllers/settings/imports_controller.rb

@@ -31,7 +31,7 @@ class Settings::ImportsController < Settings::BaseController
   def show; end
 
   def failures
-    @bulk_import = current_account.bulk_imports.where(state: :finished).find(params[:id])
+    @bulk_import = current_account.bulk_imports.state_finished.find(params[:id])
 
     respond_to do |format|
       format.csv do
@@ -92,7 +92,7 @@ class Settings::ImportsController < Settings::BaseController
   end
 
   def set_bulk_import
-    @bulk_import = current_account.bulk_imports.where(state: :unconfirmed).find(params[:id])
+    @bulk_import = current_account.bulk_imports.state_unconfirmed.find(params[:id])
   end
 
   def set_recent_imports

app/lib/vacuum/imports_vacuum.rb

@@ -9,7 +9,7 @@ class Vacuum::ImportsVacuum
   private
 
   def clean_unconfirmed_imports!
-    BulkImport.where(state: :unconfirmed).where('created_at <= ?', 10.minutes.ago).reorder(nil).in_batches.delete_all
+    BulkImport.state_unconfirmed.where('created_at <= ?', 10.minutes.ago).reorder(nil).in_batches.delete_all
   end
 
   def clean_old_imports!

app/models/bulk_import.rb

@@ -38,7 +38,7 @@ class BulkImport < ApplicationRecord
     scheduled: 1,
     in_progress: 2,
     finished: 3,
-  }
+  }, prefix: true
 
   validates :type, presence: true
 

app/views/settings/imports/index.html.haml

@@ -49,7 +49,7 @@
           %tr
             %td= t("imports.types.#{import.type}")
             %td
-              - if import.unconfirmed?
+              - if import.state_unconfirmed?
                 = link_to t("imports.states.#{import.state}"), settings_import_path(import)
               - else
                 = t("imports.states.#{import.state}")
@@ -59,7 +59,7 @@
             %td
               - num_failed = import.processed_items - import.imported_items
               - if num_failed.positive?
-                - if import.finished?
+                - if import.state_finished?
                   = link_to num_failed, failures_settings_import_path(import, format: 'csv')
                 - else
                   = num_failed

spec/models/form/import_spec.rb

@@ -281,7 +281,7 @@ RSpec.describe Form::Import do
         end
 
         it 'defaults to unconfirmed true' do
-          expect(bulk_import.unconfirmed?).to be true
+          expect(bulk_import.state_unconfirmed?).to be true
         end
       end
     end

spec/services/bulk_import_service_spec.rb

@@ -291,7 +291,7 @@ RSpec.describe BulkImportService do
 
       it 'marks the import as finished' do
         subject.call(import)
-        expect(import.reload.finished?).to be true
+        expect(import.reload.state_finished?).to be true
       end
     end
 
@@ -319,7 +319,7 @@ RSpec.describe BulkImportService do
 
       it 'marks the import as finished' do
         subject.call(import)
-        expect(import.reload.finished?).to be true
+        expect(import.reload.state_finished?).to be true
       end
     end