feat: Add CSAT response APIs (#2503)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

db/migrate/20210623155413_create_csat_survey_responses.rb

@@ -0,0 +1,15 @@
+class CreateCsatSurveyResponses < ActiveRecord::Migration[6.0]
+  def change
+    create_table :csat_survey_responses do |t|
+      t.references :account, null: false, foreign_key: true
+      t.references :conversation, null: false, foreign_key: true
+      t.references :message, null: false, foreign_key: true, index: { unique: true }
+      t.integer :rating, null: false
+      t.text :feedback_message
+      t.references :contact, null: false, foreign_key: true
+      t.references :assigned_agent, foreign_key: { to_table: :users }
+
+      t.timestamps
+    end
+  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: 2021_06_23_150613) do
+ActiveRecord::Schema.define(version: 2021_06_23_155413) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_stat_statements"
@@ -267,6 +267,23 @@ ActiveRecord::Schema.define(version: 2021_06_23_150613) do
     t.index ["team_id"], name: "index_conversations_on_team_id"
   end
 
+  create_table "csat_survey_responses", force: :cascade do |t|
+    t.bigint "account_id", null: false
+    t.bigint "conversation_id", null: false
+    t.bigint "message_id", null: false
+    t.integer "rating", null: false
+    t.text "feedback_message"
+    t.bigint "contact_id", null: false
+    t.bigint "assigned_agent_id"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["account_id"], name: "index_csat_survey_responses_on_account_id"
+    t.index ["assigned_agent_id"], name: "index_csat_survey_responses_on_assigned_agent_id"
+    t.index ["contact_id"], name: "index_csat_survey_responses_on_contact_id"
+    t.index ["conversation_id"], name: "index_csat_survey_responses_on_conversation_id"
+    t.index ["message_id"], name: "index_csat_survey_responses_on_message_id", unique: true
+  end
+
   create_table "custom_filters", force: :cascade do |t|
     t.string "name", null: false
     t.integer "filter_type", default: 0, null: false
@@ -652,6 +669,11 @@ ActiveRecord::Schema.define(version: 2021_06_23_150613) do
   add_foreign_key "conversations", "campaigns"
   add_foreign_key "conversations", "contact_inboxes"
   add_foreign_key "conversations", "teams"
+  add_foreign_key "csat_survey_responses", "accounts"
+  add_foreign_key "csat_survey_responses", "contacts"
+  add_foreign_key "csat_survey_responses", "conversations"
+  add_foreign_key "csat_survey_responses", "messages"
+  add_foreign_key "csat_survey_responses", "users", column: "assigned_agent_id"
   add_foreign_key "data_imports", "accounts"
   add_foreign_key "notes", "accounts"
   add_foreign_key "notes", "contacts"