Custom Fields

[jkniest]

This issue summarizes the plan to integrate custom field into the fixture plugin.

It should be possible to automatically create custom fields via the FixturePlugin. For this we will create a new base class which is called CustomFieldFixture.

Custom Fields should be able to be created fluently:

<?php

class MyProductFieldSet extends CustomFieldFixture
{
    public function getFieldSetInfo(): FieldSetInfo {
        return new FieldSetInfo(
                name: 'Product Details',
                entities: [ProductDefinition::ENTITY_NAME, CategoryDefinition::ENTITY_NAME],
                // ...
        );
    }

    // This method is `abstract` in the CustomFieldFixture and must be implemented
    public function load(): void {
        // All required fields (that have no default value) are in the `intField` method
        $this->intField(
                name: 'My number field',
                technicalName: 'name_123',
        )->min(20)->max(10)->create();
    }
}

Each created field set and custom field should have a flag that marks that this was created by the fixture plugin. With this we can create cleanup strategies that remove all non-existant custom fields again.

In addition new commands should be provided:

bin/console fixture:custom-fields:update
bin/console fixture:custom-fields:cleanup
bin/console fixture:custom-fields:remove-all