README.md

Sandstorm.LazyDataSource

Inspector Data Sources in Neos are usually eager, this means the UI sends a single request to the backend to load all options, and then doing the filtering client-side.

This package implements additional Inspector Editors, behaving like the standard SelectBoxEditor with data sources, but delegates filtering and searching to the server-side.

This greatly improves Neos UI performance for data sources with big collections (100s of elements).

Getting started

1. Default composer installation via:

   composer require sandstorm/lazydatasource

2. for a single select:

   In your NodeTypes.yaml, activate the custom editor by using Sandstorm.LazyDataSource/Inspector/Editors/DataSourceSelectEditor instead of Neos.Neos/Inspector/Editors/SelectBoxEditor. **All configuration options of the data source-based select apply as usual.

   Additionally, we support the following additional editorOptions:

   • dataSourceMakeNodeIndependent: if set to TRUE, the currently selected node is NOT sent to the data source on the backend, increasing the cache lifetime on the client (e.g. the system can re-use elements from other nodes)

   Example:

   'Neos.Demo:Document.Page':
     properties:
       test:
         ui:
           inspector:
             group: 'document'
   
             ##### THIS IS THE RELEVANT CONFIG:
             editor: 'Sandstorm.LazyDataSource/Inspector/Editors/DataSourceSelectEditor'
             
             ##### all Select options (e.g. dataSourceAdditionalData) work as usual. 
             editorOptions:
               placeholder: Choose
               dataSourceIdentifier: lazy-editor-test

3. for a multi select:

   In your NodeTypes.yaml, activate the custom editor by using Sandstorm.LazyDataSource/Inspector/Editors/DataSourceSelectEditor instead of Neos.Neos/Inspector/Editors/SelectBoxEditor. **All configuration options of the data source-based select apply as usual.

   Additionally, we support the following additional editorOptions:

   • dataSourceMakeNodeIndependent: if set to TRUE, the currently selected node is NOT sent to the data source on the backend, increasing the cache lifetime on the client (e.g. the system can re-use elements from other nodes)

   Example:

   'Neos.Demo:Document.Page':
     properties:
       test2:
   
         ##### Do not forget to set the property type to array<string>
         type: array<string>
         ui:
           inspector:
             group: 'document'
   
             ##### THIS IS THE RELEVANT CONFIG:
             editor: 'Sandstorm.LazyDataSource/Inspector/Editors/DataSourceSelectEditor'
             
             ##### all Select options (e.g. dataSourceAdditionalData) work as usual. 
             editorOptions:
               allowEmpty: true
               multiple: true
               placeholder: Choose
               dataSourceIdentifier: lazy-editor-test

   Do not forget to set the property type to array<string>.

4. In your DataSource implementation on the server, use the LazyDataSourceTrait and implement the two methods getDataForIdentifiers() and searchData(). Do not implement getData() (as this is provided by the trait).

   • getDataForIdentifiers() is called during the initial call, when the client-side needs to resolve entries for certain identifiers.
   • searchData() is called when the user has entered a search term, and needs to perform the searching.

   The return value for both methods needs to be the same as for normal data sources.

   Example:

    use Neos\Neos\Service\DataSource\AbstractDataSource;
    use Neos\ContentRepository\Domain\Model\NodeInterface;
    
    class MyLazyDataSource extends AbstractDataSource
    {
    
        use LazyDataSourceTrait;
    
        static protected $identifier = 'lazy-editor-test';
    
        protected function getDataForIdentifiers(array $identifiers, NodeInterface $node = null, array $arguments = [])
        {
            $options = [];
            foreach ($identifiers as $id) {
                $options[$id] = ['label' => 'My Label for ' . $id];
            }
            return $options;
        }
    
        protected function searchData(string $searchTerm, NodeInterface $node = null, array $arguments = [])
        {
            $options = [];
            $options['key'] = ['label' => 'My Label ' . $searchTerm];
            return $options;
        }
    }

Development

This project works with yarn. The build process given by the neos developers is not very configurable, only the target dir for the buildprocess is adjustable by package.json.

nvm install

If you don't have yarn already installed:

brew install yarn

Build the app:

./dev.sh setup
./dev.sh build

Contribute

You are very welcome to contribute by merge requests, adding issues etc.