README

Adds drag and drop functionality to Silverstripe's GridField

Requirements

• Silverstripe 6.0+

Installation

Installation is supported via composer only

composer require undefinedoffset/sortablegridfield

• Run dev/build?flush=all to regenerate the manifest
• Upon entering the cms and using GridFieldSortableRows component for the first time you make need to add ?flush=all to the end of the address to force the templates to regenerate

Usage

To enable sorting on a has_many relationship set up an integer field on your data object. Also for has_many relationships make sure to set the $default_sort on the DataObject to this new integer field to ensure that the sort order is applied when the relationship is requested. For many_many relationships you must add a $many_many_extraFields static to the DataObject defining the relationship, see the SilverStripe documentation for more information on this. If you are using a many_many relationship you will need to do a custom getter to set the sort order of this relationship for use on the front end see below for an example. As well for many_many relationships the name of the GridField must be the same as the relationship name other wise error's will occur. For new DataObjects you do not need to increment the sort order yourself in your DataObject, GridFieldSortableRows will automatically do this the next time the grid is displayed.

public function getMyManyManyRelationship() {
    return $this->getManyManyComponents('MyManyManyRelationship')->sort('SortColumn');
}

To enable drag and drop sorting on the GridField add the following to your GridField's config, also make sure you add the namespace UndefinedOffset\SortableGridField\Forms to your file.

//Namespace imports should be added to the top of your file
use UndefinedOffset\SortableGridField\Forms\GridFieldSortableRows;

$myGridConfig->addComponent(new GridFieldSortableRows('{Column to store sort}'));

To move an item to another page drag the row over the respective move to page button which appear on the left and right of the GridField and release.

Full code Examples

• has_many relationship
• many_many relationship
• ModelAdmin implementation

Events

GridFieldSortableRows provides 4 "events" onBeforeGridFieldRowSort(), onAfterGridFieldRowSort(), onBeforeGridFieldPageSort() and onAfterGridFieldPageSort(). These "events" are passed a clone of the DataList used in GridFieldSortableRows, in the case of page sorting this list has a limit that shows you the current page plus/minus one object. For GridFieldSortableRows that are on ModelAdmin descendants these events are called on the ModelAdmin if they do not have an owner DataObject, if you are using GridFieldSortableRows on a GridField for a DataObject's relationship the events are called on that DataObject.

Appending to the top instead of the bottom

By default GridFieldSortableRows appends to the bottom of the list for performance on large data sets, however you can set new records to append new records to the top by calling setAppendToTop(true) on your GridFieldSortableRows instance.

//Namespace imports should be added to the top of your file
use UndefinedOffset\SortableGridField\Forms\GridFieldSortableRows;

$myGridConfig->addComponent($sortable = new GridFieldSortableRows('SortOrder'));
$sortable->setAppendToTop(true);

Working with versioned records

By default GridFieldSortableRows does not update any other stage for versioned than the base stage. However you can enable this by calling setUpdateVersionedStage() and passing in the name of the stage you want to update along with the base stage. For example passing in "Live" will also update the "Live" stage when any sort happens.

//Namespace imports should be added to the top of your file
use UndefinedOffset\SortableGridField\Forms\GridFieldSortableRows;

$myGridConfig->addComponent($sortable = new GridFieldSortableRows('SortOrder'));
$sortable->setUpdateVersionedStage('Live');

Overriding the default relationship name

By default the relationship name comes from the name of the GridField, however you can override this lookup by calling setCustomRelationName() and passing in the name of the relationship. This allows for you to have multiple GridFields on the same form interacting with the same many_many list maybe filtered slightly differently.

//Namespace imports should be added to the top of your file
use UndefinedOffset\SortableGridField\Forms\GridFieldSortableRows;

$myGridConfig->addComponent($sortable = new GridFieldSortableRows('SortOrder'));
$sortable->setCustomRelationName('MyRelationship');

Reporting an issue

When you're reporting an issue please ensure you specify what version of SilverStripe you are using i.e. 3.0.5, 3.1beta3, 3.0-master etc. Also be sure to include any JavaScript or PHP errors you receive, for PHP errors please ensure you include the full stack trace. Also please include your implementation code (where your setting up your grid field) as well as how you produced the issue. You may also be asked to provide some of the classes to aid in re-producing the issue. Stick with the issue, remember that you seen the issue not the maintainer of the module so it may take a lot of questions to arrive at a fix or answer.

Notes

• When using with GridFieldManyRelationHandler make sure that you add GridFieldSortableRows to your config before for example GridFieldManyRelationHandler:

//Namespace imports should be added to the top of your file
use UndefinedOffset\SortableGridField\Forms\GridFieldSortableRows;

$config->addComponent(new GridFieldSortableRows('SortOrder'), 'GridFieldManyRelationHandler');

Contributing

Translations

Translations of the natural language strings are managed through a third party translation interface, transifex.com. Newly added strings will be periodically uploaded there for translation, and any new translations will be merged back to the project source code.

Please use https://www.transifex.com/projects/p/silverstripe-sortablegridfield to contribute translations, rather than sending pull requests with YAML files.