<?php

/**

* Copyright 2015 OpenStack Foundation

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

**/

class TagManagerField extends FormField

{

public $Category;

public function FieldHolder($attributes = array ())

{

$current_summit = $this->Category->Summit();

$tag_groups = [];

foreach($current_summit->TrackTagGroups() as $group){

$tag_groups[$group->Label] = $group;

}

$tag_array = array_fill_keys(array_keys($tag_groups), []);

foreach ($this->Category->AllowedTags() as $tag) {

$tag_group = $current_summit->getTagGroupFor($tag);

if(is_null($tag_group)) continue;

$tag_array[$tag_group->Label][] = ['tag' => $tag->Tag, 'id' => $tag->ID];

}

foreach ($tag_array as $group => &$tags) {

if (empty($tags))

unset($tag_array[$group]);

else

sort($tags);

}

$tags_json = json_encode($tag_array);

JQueryValidateDependencies::renderRequirements(true, false);

Requirements::customScript("var category_tags = {$tags_json};");

Requirements::set_write_js_to_body(false);

return parent::FieldHolder($attributes);

}

public function saveInto(DataObjectInterface $record) {

if($this->name) {

$tags = explode(',',$this->dataValue());

if(!$record instanceof SummitEvent) return;

$record->Tags()->removeAll();

foreach($tags as $t)

{

$tag = Tag::get()->byID($t);

if(is_null($tag)) continue;

$record->Tags()->add($tag);

}

}

}

public function setValue($value) {

if($value instanceof ManyManyList) {

$tags = $value->toArray();

$list = array();

foreach ($tags as $t) {

if ($t->Tag != '')

array_push($list, $t->ID);

}

$this->value = implode(',', $list);

}

if(is_string($value))

{

$this->value = $value;

}

return $this;

}

public function setCategory($category) {

$this->Category = $category;

}

}