ChildrenAssociationField example

    protected function defineFields(): FieldCollection
    {
        return new FieldCollection([
            (new IdField('id', 'id'))->addFlags(new PrimaryKey(), new Required()),
            new BoolField('use_parent_configuration', 'useParentConfiguration'),
            (new FkField('media_folder_configuration_id', 'configurationId', MediaFolderConfigurationDefinition::class))->addFlags(new Required()),
            new FkField('default_folder_id', 'defaultFolderId', MediaDefaultFolderDefinition::class),
            new ParentFkField(self::class),
            new ParentAssociationField(self::class, 'id'),
            new ChildrenAssociationField(self::class),
            new ChildCountField(),
            new TreePathField('path', 'path'),
            (new OneToManyAssociationField('media', MediaDefinition::class, 'media_folder_id'))->addFlags(new SetNullOnDelete()),
            new OneToOneAssociationField('defaultFolder', 'default_folder_id', 'id', MediaDefaultFolderDefinition::class, false),
            new ManyToOneAssociationField('configuration', 'media_folder_configuration_id', MediaFolderConfigurationDefinition::class, 'id', false),
            (new StringField('name', 'name'))->addFlags(new SearchRanking(SearchRanking::HIGH_SEARCH_RANKING), new Required()),
            new CustomFields(),
        ]);
    }
}

new TranslatedField('slotConfig'),
            (new TranslatedField('linkType'))->addFlags(new ApiAware()),
            (new TranslatedField('internalLink'))->addFlags(new ApiAware()),
            (new TranslatedField('externalLink'))->addFlags(new ApiAware()),
            (new TranslatedField('linkNewTab'))->addFlags(new ApiAware()),
            (new TranslatedField('description'))->addFlags(new ApiAware()),
            (new TranslatedField('metaTitle'))->addFlags(new ApiAware()),
            (new TranslatedField('metaDescription'))->addFlags(new ApiAware()),
            (new TranslatedField('keywords'))->addFlags(new ApiAware()),

            (new ParentAssociationField(self::class, 'id'))->addFlags(new ApiAware()),
            (new ChildrenAssociationField(self::class))->addFlags(new ApiAware()),

            (new ManyToOneAssociationField('media', 'media_id', MediaDefinition::class, 'id', false))->addFlags(new ApiAware()),
            (new TranslationsAssociationField(CategoryTranslationDefinition::class, 'category_id'))->addFlags(new ApiAware(), new Required()),
            (new ManyToManyAssociationField('products', ProductDefinition::class, ProductCategoryDefinition::class, 'category_id', 'product_id'))->addFlags(new CascadeDelete(), new ReverseInherited('categories')),
            (new ManyToManyAssociationField('nestedProducts', ProductDefinition::class, ProductCategoryTreeDefinition::class, 'category_id', 'product_id'))->addFlags(new CascadeDelete(), new WriteProtected()),
            new ManyToManyAssociationField('tags', TagDefinition::class, CategoryTagDefinition::class, 'category_id', 'tag_id'),

            (new FkField('cms_page_id', 'cmsPageId', CmsPageDefinition::class))->addFlags(new ApiAware()),
            (new ReferenceVersionField(CmsPageDefinition::class))->addFlags(new Required(), new ApiAware()),
            (new ManyToOneAssociationField('cmsPage', 'cms_page_id', CmsPageDefinition::class, 'id', false))->addFlags(new ApiAware()),
            new FkField('product_stream_id', 'productStreamId', ProductStreamDefinition::class),
            

        return new FieldCollection([
            (new IdField('id', 'id'))->addFlags(new ApiAware(), new PrimaryKey()),
            (new IdField('parent_id', 'parentId'))->addFlags(new ApiAware(), new PrimaryKey()),
            (new ParentFkField(self::class))->addFlags(new ApiAware()),
            (new StringField('name', 'name'))->addFlags(new Inherited()),
            (new TranslatedField('customTranslated'))->addFlags(new Inherited()),
            (new CustomFields('custom', 'custom'))->addFlags(new Inherited()),
            (new TranslationsAssociationField(CustomFieldTestTranslationDefinition::class, 'attribute_test_id'))->addFlags(new ApiAware()),
            // parent - child inheritance             (new ParentAssociationField(self::class, 'id'))->addFlags(new ApiAware()),
            (new ChildrenAssociationField(self::class))->addFlags(new ApiAware()),
        ]);
    }
}

return new FieldCollection([
            (new IdField('id', 'id'))->addFlags(new PrimaryKey(), new Required()),
            (new StringField('type', 'type'))->addFlags(new Required()),
            (new FkField('rule_id', 'ruleId', RuleDefinition::class))->addFlags(new Required()),
            new FkField('script_id', 'scriptId', AppScriptConditionDefinition::class),
            new ParentFkField(self::class),
            new JsonField('value', 'value'),
            new IntField('position', 'position'),
            new ManyToOneAssociationField('rule', 'rule_id', RuleDefinition::class, 'id', false),
            new ManyToOneAssociationField('appScriptCondition', 'script_id', AppScriptConditionDefinition::class, 'id', true),
            new ParentAssociationField(self::class, 'id'),
            new ChildrenAssociationField(self::class),
            new CustomFields(),
        ]);
    }
}

new IdField('id', 'id'))->addFlags(new PrimaryKey(), new Required()),
            (new FkField('product_stream_id', 'productStreamId', ProductStreamDefinition::class))->addFlags(new Required()),
            new ParentFkField(self::class),
            (new StringField('type', 'type'))->addFlags(new Required()),
            new StringField('field', 'field'),
            new StringField('operator', 'operator'),
            new LongTextField('value', 'value'),
            new JsonField('parameters', 'parameters'),
            new IntField('position', 'position'),
            new ManyToOneAssociationField('productStream', 'product_stream_id', ProductStreamDefinition::class, 'id', false),
            new ParentAssociationField(self::class, 'id'),
            new ChildrenAssociationField(self::class, 'queries'),
            new CustomFields(),
        ]);
    }
}

new FloatField('total_price', 'totalPrice'))->addFlags(new ApiAware(), new Computed()),
            (new LongTextField('description', 'description'))->addFlags(new ApiAware()),
            (new StringField('type', 'type'))->addFlags(new ApiAware()),
            (new CustomFields())->addFlags(new ApiAware()),
            new ManyToOneAssociationField('order', 'order_id', OrderDefinition::class, 'id', false),
            new ManyToOneAssociationField('product', 'product_id', ProductDefinition::class, 'id', false),
            new ManyToOneAssociationField('promotion', 'promotion_id', PromotionDefinition::class, 'id', false),
            (new OneToManyAssociationField('orderDeliveryPositions', OrderDeliveryPositionDefinition::class, 'order_line_item_id', 'id'))->addFlags(new ApiAware(), new CascadeDelete(), new WriteProtected()),
            (new OneToManyAssociationField('orderTransactionCaptureRefundPositions', OrderTransactionCaptureRefundPositionDefinition::class, 'order_line_item_id'))->addFlags(new CascadeDelete()),
            (new OneToManyAssociationField('downloads', OrderLineItemDownloadDefinition::class, 'order_line_item_id'))->addFlags(new ApiAware(), new CascadeDelete()),
            (new ParentAssociationField(self::class))->addFlags(new ApiAware()),
            (new ChildrenAssociationField(self::class))->addFlags(new ApiAware(), new Required()),
        ]);
    }
}

$collection = new FieldCollection([
            (new IdField('id', 'id'))->addFlags(new ApiAware(), new PrimaryKey(), new Required()),
            (new ParentFkField(self::class))->addFlags(new ApiAware()),
            (new FkField('locale_id', 'localeId', LocaleDefinition::class))->addFlags(new ApiAware(), new Required()),
            (new FkField('translation_code_id', 'translationCodeId', LocaleDefinition::class))->addFlags(new ApiAware()),

            (new StringField('name', 'name'))->addFlags(new ApiAware(), new Required()),
            (new CustomFields())->addFlags(new ApiAware()),
            (new ParentAssociationField(self::class, 'id'))->addFlags(new ApiAware()),
            (new ManyToOneAssociationField('locale', 'locale_id', LocaleDefinition::class, 'id', false))->addFlags(new ApiAware()),
            (new ManyToOneAssociationField('translationCode', 'translation_code_id', LocaleDefinition::class, 'id', false))->addFlags(new ApiAware()),
            (new ChildrenAssociationField(self::class))->addFlags(new ApiAware()),
            new ManyToManyAssociationField('salesChannels', SalesChannelDefinition::class, SalesChannelLanguageDefinition::class, 'language_id', 'sales_channel_id'),

            new OneToManyAssociationField('salesChannelDefaultAssignments', SalesChannelDefinition::class, 'language_id', 'id'),
            (new OneToManyAssociationField('salesChannelDomains', SalesChannelDomainDefinition::class, 'language_id'))->addFlags(new RestrictDelete()),
            (new OneToManyAssociationField('customers', CustomerDefinition::class, 'language_id'))->addFlags(new RestrictDelete()),
            (new OneToManyAssociationField('newsletterRecipients', NewsletterRecipientDefinition::class, 'language_id', 'id'))->addFlags(new RestrictDelete()),
            (new OneToManyAssociationField('orders', OrderDefinition::class, 'language_id', 'id'))->addFlags(new RestrictDelete()),

            // Translation Associations, not available over sales-channel-api             (new OneToManyAssociationField('categoryTranslations', CategoryTranslationDefinition::class, 'language_id'))->addFlags(new CascadeDelete()),
            (new OneToManyAssociationField('countryStateTranslations', CountryStateTranslationDefinition::class, 'language_id'))->addFlags(new CascadeDelete()),
            (

new TranslatedField('keywords'))->addFlags(new ApiAware(), new Inherited()),
            (new TranslatedField('description'))->addFlags(new ApiAware(), new Inherited()),
            (new TranslatedField('metaTitle'))->addFlags(new ApiAware(), new Inherited()),
            (new TranslatedField('packUnit'))->addFlags(new ApiAware(), new Inherited()),
            (new TranslatedField('packUnitPlural'))->addFlags(new ApiAware(), new Inherited()),
            (new TranslatedField('customFields'))->addFlags(new ApiAware(), new Inherited()),
            (new TranslatedField('slotConfig'))->addFlags(new Inherited()),
            (new TranslatedField('customSearchKeywords'))->addFlags(new Inherited(), new SearchRanking(SearchRanking::HIGH_SEARCH_RANKING)),

            // associations             (new ParentAssociationField(self::class, 'id'))->addFlags(new ApiAware()),
            (new ChildrenAssociationField(self::class))->addFlags(new ApiAware()),

            (new ManyToOneAssociationField('deliveryTime', 'delivery_time_id', DeliveryTimeDefinition::class))->addFlags(new ApiAware(), new Inherited()),

            (new ManyToOneAssociationField('tax', 'tax_id', TaxDefinition::class, 'id', true))->addFlags(new ApiAware(), new Inherited()),

            (new ManyToOneAssociationField('manufacturer', 'product_manufacturer_id', ProductManufacturerDefinition::class, 'id'))->addFlags(new ApiAware(), new Inherited()),

            (new ManyToOneAssociationField('unit', 'unit_id', UnitDefinition::class, 'id'))->addFlags(new ApiAware(), new Inherited()),

            (new ManyToOneAssociationField('cover', 'product_media_id', ProductMediaDefinition::class, 'id'))->addFlags(new ApiAware(), new Inherited()),

            (

new IdField('id', 'id'))->addFlags(new PrimaryKey(), new Required()),
            (new FkField('flow_id', 'flowId', FlowDefinition::class))->addFlags(new Required()),
            new FkField('rule_id', 'ruleId', RuleDefinition::class),
            (new StringField('action_name', 'actionName', 255))->addFlags(new SearchRanking(SearchRanking::ASSOCIATION_SEARCH_RANKING)),
            new JsonField('config', 'config', [], []),
            new IntField('position', 'position'),
            new IntField('display_group', 'displayGroup'),
            new BoolField('true_case', 'trueCase'),
            new ManyToOneAssociationField('flow', 'flow_id', FlowDefinition::class, 'id', false),
            new ManyToOneAssociationField('rule', 'rule_id', RuleDefinition::class, 'id', false),
            new ParentAssociationField(self::class, 'id'),
            new ChildrenAssociationField(self::class),
            new ParentFkField(self::class),
            new CustomFields(),
            new FkField('app_flow_action_id', 'appFlowActionId', AppFlowActionDefinition::class),
            new ManyToOneAssociationField('appFlowAction', 'app_flow_action_id', AppFlowActionDefinition::class, 'id', false),
        ]);
    }
}