README

This is a modified version of the brilliant package created by TimoKoerber.

In this version I changed the call to "json_decode" in the Seeder side with the package created by Halaxa "json-machine".

• "json_decode" often causes Allowed Memory Size Exhausted, when it has to process large files (which can often happen in database seeding).
• the "halaxa / json-machine" offers a very easy to use and memory efficient drop-in replacement for inefficient iteration of big JSON files

In addition, I added a few more configurations for the seeding procedure.

myChangelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.1.1] - 2021-04-16

Fixed

• Improved "Exception -> File Empty" Read content to each file kept causing "Allowed Memory Size Exhausted"
• Inserted timer calculation for each seeding file

[1.1] - 2021-04-16

First Release

Laravel JSON Seeder

Create and use JSON files to seed your database in your Laravel applications.

This package works both ways!

• Export your database into JSON files
• Use JSON files to seed your database

Installation

Require this package with composer. It is recommended to only require the package for development.

composer require timokoerber/laravel-json-seeder --dev

Next you need to publish the config file and register the required commands with ...

php artisan vendor:publish --provider="LucaCiotti\LaravelJsonSeeder\JsonSeederServiceProvider"

This will create the file config/jsonseeder.php where you can find the configurations.

Next add the JsonSeederServiceProvider to the providers array in config/app.php ...

// config/app.php

'providers' => [
    ...
    
    LucaCiotti\LaravelJsonSeeder\JsonSeederServiceProvider::class,
    
    ...
]

Creating JSON seeds from database

Of course you can create the JSON files manually. But if you already have a good development database, you can easily export it into JSON seeds.

You can create seeds for every table in your database by calling ...

php artisan jsonseeds:create

This will create one JSON file for watch table in your database (i.e. table users -> users.json, table posts -> posts.json, etc.).

If you only want to create a seed of one specific table (i.e. users), call ...

php artisan jsonseeds:create users

Existing files won't be overwritten by default. If you call the command again, a sub-directory will be created and the JSON seeds will be stored there. If you want to overwrite the existing seeds, use the overwrite option like ...

php artisan jsonseeds:create users -o|--overwrite

or just use the command ...

php artisan jsonseeds:overwrite users

Seeding

Go to your databas/seeds/DatabaseSeeder.php and add the JsonSeeder inside the run() method like this ...

// database/seeds/DatabaseSeeder.php

class DatabaseSeeder extends Seeder
{
    public function run()
    {
        $this->call(LucaCiotti\LaravelJsonSeeder\JsonDatabaseSeeder::class);
    }
}

You can now call the JSON Seeder with the usual Artisan command ...

php artisan db:seed

Settings & Configurations

Directory

By default your seeds will be written into or read from the directory /database/json. If you want a different directory, you can add the environment variable JSON_SEEDS_DIRECTORY in your .env file ...

# .env

JSON_SEEDS_DIRECTORY=database/json

Ignoring tables

Some tables in your database might not require any seeds. If you want to ignore these tables, you can put them into the setting ignore-tables in the /config.jsonseeder.php

// config/jsonseeder.php

'ignore-tables' => [
    'migrations',
    'failed_jobs',
    'password_resets',
]

If a table in your database is empty, the LaravelJsonSeeder will create a JSON file with an empty array by default. This might be useful if you want your seeds to truncate this table. If you don't want this, you can change the setting ignore-empty-tables in config/jsonseeder.php, so no JSON seed will be created.

// config/jsonseeder.php

'ignore-empty-tables' => true

Important!!! Do not forget to clear the cache after editing the config file: php artisan cache:clear

Environments

The environment variable JSON_SEEDS_DIRECTORY might be useful if you are using seeds in Unit Tests and want to use different seeds for this.

- database
  - json
      - development
        - comapanies.json
        - users.json 
        - posts.json
      - testing
        - users.json
        - posts.json

Development

# .env

JSON_SEEDS_DIRECTORY=database/json/development

Testing

// phpunit.xml

<phpunit>
    <php>
        <env name="JSON_SEEDS_DIRECTORY" value="database/json/testing"/>
    </php>
</phpunit>

Errors & Warnings

License

Copyright © Timo Körber

Laravel JSON Seeder is open-sourced software licensed under the MIT license.