Based on that, let's create our new migration, add_polls_table:
$ mix ecto.gen.migration add_polls_table* creating priv/repo/migrations* creating priv/repo/migrations/20171005161434_add_polls_table.exs
By default, that will give us a mostly blank file consisting of:
defmodule Vocial.Repo.Migrations.AddPollsTable do use Ecto.Migration def change do endend
This allows us to start putting together the definitions for our table! Let's take a look at what this file does:
First, we define a new module under Vocial.Repo.Migrations called AddPollsTable (remember that the gen.migration command we had used previously took add_polls_table as the only argument).
Next, we tell Ecto that this module should be using the ...
