init project

db/migrate/20191220085352_create_compose_projects.rb

@@ -0,0 +1,13 @@
+class CreateComposeProjects < ActiveRecord::Migration[5.2]
+  def change
+  #   create_table :compose_projects do |t|
+  #     t.integer :user_id
+  #     t.integer :project_id
+  #     t.integer :compose_id
+  #     t.integer :position , default: 0
+  #
+  #     t.timestamps
+  #   end
+  #   add_index :compose_projects, [:user_id, :project_id, :compose_id]
+  end
+end