Fix broken spec and linting errors

plugin.rb

@@ -694,7 +694,7 @@ SQL
       check_params!
       return save_default_query if @id && @id < 0
 
-      @id = @id ||self.class.alloc_id
+      @id = @id || self.class.alloc_id
       DataExplorer.pstore_set "q:#{id}", to_hash
     end
 

spec/controllers/queries_controller_spec.rb

@@ -282,7 +282,7 @@ describe DataExplorer::QueryController do
 
       it "only returns queries that the group has access to" do
         group.add(user)
-        make_query('SELECT 1 as value', {name: 'A'}, ["#{group.id}"])        
+        make_query('SELECT 1 as value', { name: 'A' }, ["#{group.id}"])
 
         get :group_reports_index, params: { group_name: group.name }, format: :json
         expect(response.status).to eq(200)
@@ -310,7 +310,7 @@ describe DataExplorer::QueryController do
 
     describe "#group_reports_run" do
       it "calls run on QueryController" do
-        query = make_query('SELECT 1 as value', {name: 'B'}, ["#{group.id}"])
+        query = make_query('SELECT 1 as value', { name: 'B' }, ["#{group.id}"])
         controller.expects(:run).at_least_once
 
         get :group_reports_run, params: { group_name: group.name, id: query.id }, format: :json
@@ -362,4 +362,3 @@ describe DataExplorer::QueryController do
     end
   end
 end
-

spec/guardian_spec.rb

@@ -1,11 +1,15 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 describe Guardian do
 
+  before { SiteSetting.data_explorer_enabled = true }
+
   def make_query(group_ids = [])
     q = DataExplorer::Query.new
     q.id = Fabrication::Sequencer.sequence("query-id", 1)
-    q.name ="Query number #{q.id}"
+    q.name = "Query number #{q.id}"
     q.sql = "SELECT 1"
     q.group_ids = group_ids
     q.save