[TYPO3-core] RFC: #16228: [Feature] TCA tree

[Steffen Kamper]

Hi,

this is a SVN patch request.

Type: Feature

BT Reference: http://bugs.typo3.org/view.php?id=16228

Branches: trunk

This feature renders a tree from TCA with the type "select" and 
renderMode "tree".

It uses the abstract tree classes, adds special tca tree classes and 
work with a minimum of configuration needed. it supports all properties 
that select supports.

It use an additional config parameter "treeConfig" which has following 
options:
parentField => the field where the parent id is defined
childField => the field where the child id is defined
appeareance => array:
   expandAll => expands all nodes on show
   showHeader => boolean, the header consists of a filter text with 
options, and icons for collapse/expand all

if size is defined, the tree height allow to show this amount of nodes
if autoSizemax is defined, it shows at least this amount of nodes before 
showing scroll bar

Please unzip the attached archive in typo3/sysext

For testing use the fe_groups field of pages, add the following to you 
extTables.php:

$GLOBALS['TCA']['pages']['columns']['fe_group']['config']['renderMode'] 
= 'tree';
//$GLOBALS['TCA']['pages']['columns']['fe_group']['config']['size'] = '6';
//$GLOBALS['TCA']['pages']['columns']['fe_group']['config']['autoSizeMax'] 
= '10';
$GLOBALS['TCA']['pages']['columns']['fe_group']['config']['treeConfig'] 
= array(
     'parentField' => 'subgroup',
     'appearance' => array(
         'expandAll' => TRUE,
         'showHeader' => TRUE,
     )
);

Notes:
This patch was mainly developed by Steffen Ritter at T3CSS10 and 
finished as teamwork.

Please remind that the example with fe_groups is only a showcase and not 
a real life example, as fe_froups allow to apply more than one parents, 
while a tree node only can have one parent node.

The 2 icons are pending in HCI tracker and will be reviewed or renewed 
by them.

vg Steffen
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