1class RemoveFieldsFromExerciseSessions < ActiveRecord::Migration
 2  def up
 3    change_table :exercise_sessions do |t|
 4      t.remove :actual_sets
 5      t.remove :target_repetitions
 6      t.remove :target_sets
 7      t.remove :target_weight
 8    end
 9  end
10
11  def down
12    change_table :exercise_sessions do |t|
13      t.text :actual_sets, array: true, default: []
14      t.integer :target_repetitions
15      t.integer :target_sets
16      t.integer :target_weight
17    end
18  end
19end