Make exports#key not-null

app/models/export.rb

@@ -4,7 +4,7 @@
 #
 #  id         :bigint           not null, primary key
 #  format     :string           not null
-#  key        :text
+#  key        :text             not null
 #  created_at :datetime         not null
 #  updated_at :datetime         not null
 #

db/migrate/20210402163003_exports_key_not_null.rb

@@ -0,0 +1,5 @@
+class ExportsKeyNotNull < ActiveRecord::Migration[6.1]
+  def change
+    change_column_null :exports, :key, false
+  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_03_31_123709) do
+ActiveRecord::Schema.define(version: 2021_04_02_163003) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -354,7 +354,7 @@ ActiveRecord::Schema.define(version: 2021_03_31_123709) do
     t.string "format", null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
-    t.text "key"
+    t.text "key", null: false
     t.index ["format", "key"], name: "index_exports_on_format_and_key", unique: true
   end