Sinatra db table not created after migration - ruby

Question

I am trying to create active record using Sinatra and Sinatra/active record, my migrations are getting migrated to the Postgres database but tables are not getting created in the database, I went through all the possible solutions on stack overflow but its of no use. I tried even deleting my migration files from db/migrate folder but still the same output. What must be the error
Gemfile
source 'https://rubygems.org'
gem "sinatra"
gem "pg" #for postgres
gem "activerecord"
gem "sinatra-activerecord"
config.ru
require "./app"
run Sinatra::Application
rakefile.rb
require "./app"
require "sinatra/activerecord/rake"
app.rb
require 'sinatra'
require 'sinatra/activerecord'
db = URI.parse('postgres://project1:project1#localhost/*****')
ActiveRecord::Base.establish_connection(
:adapter => db.scheme == 'postgres' ? 'postgresql' : db.scheme,
:host => db.host,
:username => db.user,
:password => db.password,
:database => db.path[1..-1],
:encoding => 'utf8'
)
class Note < ActiveRecord::Base
end
class CreateNotes < ActiveRecord::Migration
def up
create_table :notes do |t|
t.string :title
t.text :body
t.timestamps
end
end
def down
drop_table :notes
end
end
output of migration
user#user-Inspiron-5520:~/rails-apps/project1$ rake db:migrate
== 20150704053019 CreateNotes: migrating ======================================
== 20150704053019 CreateNotes: migrated (0.0000s) =============================
db output (psql)
\dt
List of relations
Schema | Name | Type | Owner
--------+-------------------+-------+-----------
public | schema_migrations | table | project1
(1 row)
project1=# select * from schema_migrations;
version
----------------
20150704053019
(1 row)
note: Project1 user is a super user with all privileges
EDIT
Migrations file 20150704053019_create_notes.rb
class CreateNotes < ActiveRecord::Migration
def change
end
end

Answer 1

I would first like to note that #limekin was the first to get the answer, commenting:
The migration you are using to create notes table is actually kept in app.rb. But the migrate task looks for migrations inside db/migrate. If the migration file you gave at the bottom is inside the right directory, then move the migration definition from app.rb to there.
I will just go into a bit more detail. The function that you are using to create the table belongs in the migration file, because a migration is what creates, changes and deletes tables, columns, and records.
So to solve your issue just move the function up in your app file into the change function in your migration file.