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Updated migrations example in tutorial 2.

Follow up to a97845a823.
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Mariusz Felisiak 2020-03-10 08:53:28 +01:00 committed by GitHub
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@ -240,10 +240,9 @@ You should see something similar to the following:
.. code-block:: text
Migrations for 'polls':
polls/migrations/0001_initial.py:
- Create model Choice
polls/migrations/0001_initial.py
- Create model Question
- Add field question to choice
- Create model Choice
By running ``makemigrations``, you're telling Django that you've made
some changes to your models (in this case, you've made new ones) and that
@ -272,14 +271,6 @@ readability):
BEGIN;
--
-- Create model Choice
--
CREATE TABLE "polls_choice" (
"id" serial NOT NULL PRIMARY KEY,
"choice_text" varchar(200) NOT NULL,
"votes" integer NOT NULL
);
--
-- Create model Question
--
CREATE TABLE "polls_question" (
@ -288,16 +279,20 @@ readability):
"pub_date" timestamp with time zone NOT NULL
);
--
-- Add field question to choice
-- Create model Choice
--
ALTER TABLE "polls_choice" ADD COLUMN "question_id" integer NOT NULL;
ALTER TABLE "polls_choice" ALTER COLUMN "question_id" DROP DEFAULT;
CREATE INDEX "polls_choice_7aa0f6ee" ON "polls_choice" ("question_id");
CREATE TABLE "polls_choice" (
"id" serial NOT NULL PRIMARY KEY,
"choice_text" varchar(200) NOT NULL,
"votes" integer NOT NULL,
"question_id" integer NOT NULL
);
ALTER TABLE "polls_choice"
ADD CONSTRAINT "polls_choice_question_id_246c99a640fbbd72_fk_polls_question_id"
ADD CONSTRAINT "polls_choice_question_id_c5b4b260_fk_polls_question_id"
FOREIGN KEY ("question_id")
REFERENCES "polls_question" ("id")
DEFERRABLE INITIALLY DEFERRED;
CREATE INDEX "polls_choice_question_id_c5b4b260" ON "polls_choice" ("question_id");
COMMIT;