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GridFieldRelationHandler

This module provides two GridField components that aid in managing relationships within SilverStripe. The GridFieldHasOneRelationHandler component allows a SS_List to be used to select the value of a has_one relation and the GridFieldManyRelationHandler component manages a RelationList.

Installation

If the version of SilverStripe you are running is earlier than 3.0.3, first apply this patch to GridFieldPaginator.

Download this module and extract it into your site's root folder. Flush your site's manifest by visiting http://yoursite.com/?flush=1. These components are now ready for use.

GridFieldHasOneRelationHandler

The GridFieldHasOneRelationHandler component provides radio buttons for selecting the object that the has_one points to. Its constructor takes the object the relation exists on, the name of the relation and an optional target fragment which describes the position of the save relation button.

Example

:::php
$config->addComponent(new GridFieldHasOneRelationHandler($this, 'MainImage'));

GridFieldManyRelationHandler

The GridFieldManyRelationHandler component provides check boxes for selecting the objects that a has_many or many_many point to. Its constructor takes an optional target fragment which describes the position of the save relation button.

If your GridField also has a GridFieldPaginator component, this component must be inserted before it for the pagination to work properly.

Example

:::php
// The second argument here ensures that this component is placed before any GridFieldPaginator
$config->addComponent(new GridFieldManyRelationHandler(), 'GridFieldPaginator');

License

Copyright (c) 2012, Simon Welsh - simon.geek.nz
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    * The name of Simon Welsh may not be used to endorse or promote products
      derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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