CBTree

Nadstavba TreeView pre vykreslenie CheckBoxTree kompatibilneho s http://www.redcarrot.co.uk/…uery-plugin/

Download	http://github.com/Lopo/treeview
Forum thread	http://forum.nette.org/…xlist-cbtree
Demo	http://nette.losys.sk/…ew/c-b-tree/
Autor	Lopo (Pavol Hluchy)

poziadavka bola moznost urcovania viditelnosti poloziet v stromovej strukture

K pouzitiu je potrebny jQuery plugin Collapsible Checkbox Tree jQuery Plugin

TreeView sluzi ako datova struktura

pouzitie: treba zaregistrovat rozsirenie formu (v bootstrape a pod.):

Form::extensionMethod('Form::addCBTree', array('CBTree', 'addCBTree'));

a v tovarnicke potom uz len

$tree=new TreeView;
$tree->addLink(null, 'name', 'id', true, $this->presenter);
$tree->dataSource=$this->model->findAllCTree();
$form->addCBTree('ctree', 'filter', $tree);

pripadne doplnit nazov stlpca podla ktoreho sa riadia checkboxy (defaultne visible):

$form['ctree']->checkColumn='visible';

v DB potom treba samozrejme v tabulke doplnit bool stlpec visible a v sablone linknut prislusny jQuery plugin

v odoslanom formulari sa potom cela struktura objavi ako jednorozmerne pole, v ktorom hodnoty su id checknutych boxov

vysledny form prvok vyzera zhruba takto:

samotna nadstavba:

<?php
/**
 * @author Pavol Hluchy
 * @version 0.1.0
 */
class CBTree
extends FormControl
{
    /** @var Nette\Web\Html  container element template */
    protected $container;
    /** @var TreeView data */
    protected $tree;
    /** @var string */
    public $checkColumn='visible';

    /**
     * @param  string  label
     * @param  TreeView   options from which to choose
     */
    public function __construct($label, TreeView $tree)
    {
        parent::__construct($label);
        $this->control->type='checkbox';
        $this->container=Html::el();
        if ($tree!==NULL) $this->setItems($tree);
    }

    /**
     * Returns selected checkbox value.
     * @param  bool
     * @return mixed
     */
    public function getValue($raw=FALSE)
    {
        return is_array($this->value)? $this->value : NULL;
    }

    /**
     * Form container extension method. Do not call directly.
     * @param  Form
     * @param  string  name
     * @param  string  label
     * @param  array   items
     * @return CBTree
     */
    public static function addCBTree(Form $form, $name, $label, $tree)
    {
        return $form[$name]=new self($label, $tree);
    }

    /**
     * Sets options from which to choose.
     * @param  TreeView
     * @return CBTree  provides a fluent interface
     */
    public function setItems(TreeView $tree)
    {
        $this->tree=$tree;
        return $this;
    }
    /**
     * Returns container HTML element template.
     * @return Nette\Web\Html
     */
    final public function getContainerPrototype()
    {
        return $this->container;
    }

    /**
     * Generates control's HTML element.
     * @param  mixed
     * @return Nette\Web\Html
     */
    public function getControl($key=NULL)
    {
        if ($key===NULL)
            $container=clone $this->container;
        elseif (!isset($this->tree[$key]))
            return NULL;
        $control=parent::getControl();
        $control->name.='[]';
        $id=$control->id;
        $values=$this->value===NULL? NULL : (array)$this->getValue();
        $label=Html::el('label');
        $x=Html::el('ul', array('id'=>'example'));
        foreach ($this->tree->getNodes() as $node) {
            $x->add($this->renderNode($node, $control, $label));
            }
        $container->add($x);
        return $container;
    }

    /**
     * Generates label's HTML element.
     * @return void
     */
    public function getLabel($caption=NULL)
    {
        $label=parent::getLabel($caption);
        $label->for=NULL;
        return $label;
    }

    public function renderNode(TreeViewNode $node, $control, $label)
    {
        $pcontrol=clone $control;
        $li=Html::el('li');
        $nid=$node->getDataRow()->id;
        $control->id=$label->for=$control->id.'-'.$nid;
        $ck=$this->checkColumn;
        if ($node->getDataRow()->$ck)
            $control->checked='checked';
        else $control->checked=null;
        $control->value=$nid;
        $label->setText($node->getDataRow()->name);
        $li->add((string)$control.(string)$label);
        $nodes=$node->getNodes();
        if (count($nodes)) {
            $u=Html::el('ul');
            $li->add($u);
            foreach ($nodes as $n)
                $u->add($this->renderNode($n, $pcontrol, $label));
            }
        return $li;
    }
}

historia verzii:
0.1.0	prvy verejny rls, uverejnene http://forum.nette.org/…xlist-cbtree
0.2.0	doplnene automaticke generovanie prepajacieho JS a id kontajneroveho UL
0.2.1	upravene nazvy premennych, zmena renderNode() na private, vyhodeny zbytocny riadok v getControl()
0.2.2	doplnena moznost prenastavit defaultne hodnoty parametrov jQuery pluginu checkParents,chec­kChildren,unchec­kChildren,ini­tialState

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