fix error that occurs when specifying multiple condition in bgeigie_i…

…mpors#index (#987)

`ActiveRecord::Relation` has method called `filter` that is from `Enumerable#filter` of ruby standard library

app/controllers/bgeigie_imports_controller.rb

@@ -9,7 +9,7 @@ class BgeigieImportsController < ApplicationController # rubocop:disable Metrics
   before_action :require_moderator, only: %i(approve fixdrive send_email resolve)
 
   has_scope :q do |_controller, scope, value|
-    scope.filter(value)
+    scope.filter_by_text_fields(value)
   end
 
   has_scope :by_status

app/models/bgeigie_import.rb

@@ -33,7 +33,7 @@ class BgeigieImport < MeasurementImport # rubocop:disable Metrics/ClassLength
     measurements_added
   )
 
-  def self.filter(query)
+  def self.filter_by_text_fields(query)
     where("lower(name) LIKE :query
            OR lower(source) LIKE :query
            OR lower(description) LIKE :query

spec/models/bgeigie_import_spec.rb

@@ -3,6 +3,17 @@
 RSpec.describe BgeigieImport do
   let(:user) { Fabricate(:user) }
 
+  describe '.filter_by_text_fields' do
+    context 'with ActiveRecord::Relation' do
+      let(:relation) { described_class.order(:created_at) }
+
+      it 'should not raise error' do
+        expect { relation.filter_by_text_fields('_text_') }
+          .not_to raise_error
+      end
+    end
+  end
+
   describe '#initialize' do
     it 'should set subtype to "None" by default' do
       expect(described_class.new.subtype).to eq('None')