Unable to disable automatic foreign key constraints

[mhuggins]

Hi there! I'm trying to use schema_plus on a new rails project from scratch. I see references to disabling automatic foreign key creation, but it doesn't seem to be working for me. I'm using schema_plus 1.4.1 with PostgreSQL.

My config/initializers/schema_plus.rb contains:

SchemaPlus.setup do |config|
  config.foreign_keys.auto_create = false
end

My migration file is essentially:

create_table :champions do |t|
  t.string :api_id, null: false, index: { unique: true }
  # ...other columns...

  t.timestamps
end

Running bundle exec rake db:migrate results in:

== 20140315224008 CreateChampions: migrating ==================================
-- create_table(:champions)
rake aborted!
An error has occurred, this and all later migrations canceled:

PG::UndefinedTable: ERROR:  relation "apis" does not exist
: CREATE TABLE "champions" ("id" serial primary key, "api_id" character varying(255) NOT NULL, "name" character varying(255) NOT NULL, "title" character varying(255) NOT NULL, "image" character varying(255) NOT NULL, "attack_rank" integer NOT NULL, "defense_rank" integer NOT NULL, "magic_rank" integer NOT NULL, "difficulty_rank" integer NOT NULL, "created_at" timestamp, "updated_at" timestamp, CONSTRAINT fk_champions_api_id FOREIGN KEY ("api_id") REFERENCES "apis" ("id"))

Any idea why the FK option is not disabled despite my attempt to explicitly disable?