Rename clusters_applications_jupyters to uncountable

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/models/clusters/applications/jupyter.rb

@@ -3,7 +3,7 @@ module Clusters
     class Jupyter < ActiveRecord::Base
       VERSION = '0.0.1'.freeze
 
-      self.table_name = 'clusters_applications_jupyters'
+      self.table_name = 'clusters_applications_jupyter'
 
       include ::Clusters::Concerns::ApplicationCore
       include ::Clusters::Concerns::ApplicationStatus

db/migrate/20180511131058_create_clusters_applications_jupyter.rb

@@ -7,7 +7,7 @@ class CreateClustersApplicationsJupyter < ActiveRecord::Migration
   DOWNTIME = false
 
   def change
-    create_table :clusters_applications_jupyters do |t|
+    create_table :clusters_applications_jupyter do |t|
       t.references :cluster, null: false, unique: true, foreign_key: { on_delete: :cascade }
       t.references :oauth_application
 

db/schema.rb

@@ -635,7 +635,7 @@ ActiveRecord::Schema.define(version: 20180521171529) do
     t.string "external_ip"
   end
 
-  create_table "clusters_applications_jupyters", force: :cascade do |t|
+  create_table "clusters_applications_jupyter", force: :cascade do |t|
     t.integer "cluster_id", null: false
     t.integer "oauth_application_id"
     t.integer "status", null: false