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How to Import and Export Entities

You have to create some services and add some configuration to make Oro Platform capable to export your custom entities as CSV files and to be able to load data from CSV files for your entities.

All the configuration described below will be added to the importexport.yml file in the Resources/config directory of your application bundle. Make sure that you have a container extension class in your bundle that loads the configuration file:

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// src/AppBundle/DependencyInjection/AppExtension.php
namespace AppBundle\DependencyInjection;

use Symfony\Component\Config\FileLocator;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Extension\Extension;
use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;

class AppExtension extends Extension
{
    public function load(array $configs, ContainerBuilder $container)
    {
        $loader = new YamlFileLoader($container, new FileLocator(__DIR__.'/Resources/config'));
        $loader->load('importexport.yml');
    }
}

Setting Up the Import and Export Processor

Import and export is handled by so called processors which transform the imported data into actual entities and vice versa. The easiest way to quickly set up import and export processors for your entities is to reuse the ImportProcessor and ExportProcessor classes that ship with the OroImportExportBundle. All you need to do is creating services that are based on abstract services from the OroImportExportBundle and let them know which entity class they have to handle:

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# src/AppBundle/Resources/config/importexport.yml
services:
    app.importexport.data_converter:
        parent: oro_importexport.data_converter.configurable

    app.importexport.processor.export:
        parent: oro_importexport.processor.export_abstract
        calls:
            - [setDataConverter, ['@app.importexport.data_converter']]
        tags:
            - name: oro_importexport.processor
              type: export
              entity: AppBundle\Entity\Task
              alias: app_task
    app.importexport.processor.import:
        parent: oro_importexport.processor.import_abstract
        calls:
            - [setDataConverter, ['@app.importexport.data_converter']]
        tags:
            - name: oro_importexport.processor
              type: import
              entity: AppBundle\Entity\Task
              alias: app_task

Providing Example Data

To make it easier for your users to understand the format in which they need to enter the data to be imported, you can provide them with an example file that will be created based on some template fixtures:

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// src/AppBundle/ImportExport/TemplateFixture;
namespace AppBundle\ImportExport\TemplateFixture;

use AppBundle\Entity\Task;
use Oro\Bundle\ImportExportBundle\TemplateFixture\AbstractTemplateRepository;
use Oro\Bundle\ImportExportBundle\TemplateFixture\TemplateFixtureInterface;

class TaskFixture extends AbstractTemplateRepository implements TemplateFixtureInterface
{
    public function getEntityClass()
    {
        return 'AppBundle\Entity\Task';
    }

    public function getData()
    {
        return $this->getEntityData('example-task');
    }

    public function fillEntityData($key, $entity)
    {
        $entity->setId(1);
        $entity->setSubject('Call customer');
        $entity->setDescription('Please call the customer to talk about their future plans.');
        $entity->setDueDate(new \DateTime('+3 days'));
    }

    protected function createEntity($key)
    {
        return new Task();
    }
}

Then, register your fixtures class as a service:

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# src/AppBundle/Resources/config/importexport.yml
services:
    # ...

    app.importexport.template_fixture.task:
        class: AppBundle\ImportExport\TemplateFixture\TaskFixture
        tags:
            - { name: oro_importexport.template_fixture }

Adding Import and Export Actions to the UI

Finally, you need to add control elements to the UI to let your users export existing data and add new entities by uploading a CSV file. You can include the buttons.html.twig template from the OroImportExportBundle while passing it the needed services names (see the configuration above) to do so:

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{# src/AppBundle/Resources/views/Task/index.html.twig #}
{% extends 'OroUIBundle:actions:index.html.twig' %}

{% set gridName = 'app-tasks-grid' %}
{% set pageTitle = 'Task' %}

{% block navButtons %}
    {% include 'OroImportExportBundle:ImportExport:buttons.html.twig' with {
        entity_class: 'AppBundle\\Entity\\Task',
        exportProcessor: 'app_task',
        exportTitle: 'Export',
        importProcessor: 'app_task',
        importTitle: 'Import',
        datagridName: gridName
    } %}

    {# ... #}
{% endblock %}
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