feat: CRUD operation for associated articles to current article (#4912)

db/migrate/20220608084622_add_associated_article_id.rb

@@ -0,0 +1,5 @@
+class AddAssociatedArticleId < ActiveRecord::Migration[6.1]
+  def change
+    add_reference :articles, :associated_article, foreign_key: { to_table: :articles }
+  end
+end

db/migrate/20220628124837_create_portal_members.rb

@@ -0,0 +1,12 @@
+class CreatePortalMembers < ActiveRecord::Migration[6.1]
+  def change
+    create_table :portal_members do |t|
+      t.bigint :portal_id
+      t.bigint :user_id
+      t.timestamps
+    end
+
+    add_index :portal_members, [:portal_id, :user_id], unique: true
+    add_index :portal_members, [:user_id, :portal_id], unique: true
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2022_06_27_135753) do
+ActiveRecord::Schema.define(version: 2022_06_28_124837) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_stat_statements"
@@ -126,6 +126,8 @@ ActiveRecord::Schema.define(version: 2022_06_27_135753) do
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
     t.bigint "author_id"
+    t.bigint "associated_article_id"
+    t.index ["associated_article_id"], name: "index_articles_on_associated_article_id"
     t.index ["author_id"], name: "index_articles_on_author_id"
   end
 
@@ -663,6 +665,15 @@ ActiveRecord::Schema.define(version: 2022_06_27_135753) do
     t.datetime "updated_at", precision: 6, null: false
   end
 
+  create_table "portal_members", force: :cascade do |t|
+    t.bigint "portal_id"
+    t.bigint "user_id"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["portal_id", "user_id"], name: "index_portal_members_on_portal_id_and_user_id", unique: true
+    t.index ["user_id", "portal_id"], name: "index_portal_members_on_user_id_and_portal_id", unique: true
+  end
+
   create_table "portals", force: :cascade do |t|
     t.integer "account_id", null: false
     t.string "name", null: false
@@ -836,6 +847,7 @@ ActiveRecord::Schema.define(version: 2022_06_27_135753) do
   add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
   add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
   add_foreign_key "agent_bots", "accounts", on_delete: :cascade
+  add_foreign_key "articles", "articles", column: "associated_article_id"
   add_foreign_key "articles", "users", column: "author_id"
   add_foreign_key "campaigns", "accounts", on_delete: :cascade
   add_foreign_key "campaigns", "inboxes", on_delete: :cascade