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72 lines
2.0 KiB
ReStructuredText
72 lines
2.0 KiB
ReStructuredText
.. meta::
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:description: Create a seed data migration in Hasura
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:keywords: hasura, docs, migration, seed data
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.. _seed_data_migration:
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Creating a seed data migration
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==============================
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.. contents:: Table of contents
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:backlinks: none
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:depth: 1
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:local:
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Use case
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^^^^^^^^
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It can be convenient to add some seed data into tables as part of the DB init
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process.
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Step 1: Run the console via the Hasura CLI
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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In order to make sure that the migrations get created, the console needs to be
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run via the Hasura CLI.
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Step 2: Navigate to the SQL section
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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On the Hasura console, click on the ``Data`` tab and then on the ``SQL`` link on
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the left hand side.
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Step 3: Write an insert statement
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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The next step is to write an insert statement that populates the database with
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seed data, like this:
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.. code-block:: SQL
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INSERT INTO addresses (id, location) VALUES
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(1, 'Bangalore'),
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(2, 'Tel Aviv'),
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(3, 'Zurich');
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INSERT INTO authors (id, name, address_id) VALUES
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(1, 'Sarah', 3),
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(2, 'Joey', 1),
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(3, 'Rachel', 2);
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INSERT INTO articles (id, title, content, author_id) VALUES
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(1, 'How to make fajitas', 'Recipe on making the best fajitas in the world', 1),
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(2, 'How to climb mount everest', 'Guide on successfully climbing the hightest mountain in the world', 3),
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(3, 'How to be successful on broadway', 'What it takes for you to be a successful performer at broadway', 2);
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Step 4: Mark the insert as a migration
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Check the box ``This is a migration`` and give the migration a name, e.g. ``insert_seed_data``.
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Step 5: Run the statement
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^^^^^^^^^^^^^^^^^^^^^^^^^
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Hit the ``Run!`` button.
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Step 6: Verify data & migration
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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If the insert statement was successful, the data is now added to the DB.
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Navigate to the ``migrations`` directory in your Hasura project. The latest migration
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will be the the insert statement that was just run.
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