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‎LICENSE.md‎

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Yii 2 Tree extension for Yii 2 framework is free software.
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It is released under the terms of the following BSD License.
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Copyright © 2015, Alexey Rogachev (https://github.com/arogachev)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of test nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

‎README.md‎

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# Yii 2 Tree
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Database tree structures management for Yii 2 framework

‎composer.json‎

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{
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"name": "arogachev/yii2-tree",
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"description": "Database tree structures management for Yii 2 framework",
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"keywords": [
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"yii2",
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"tree",
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"nested set",
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"nested sets",
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"widget",
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"active record"
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],
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"homepage": "https://github.com/arogachev/yii2-tree",
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"type": "yii2-extension",
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"license": "BSD-3-Clause",
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"authors": [
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{
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"name": "Alexey Rogachev",
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"email": "arogachev90@gmail.com"
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}
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],
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"require": {
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"yiisoft/yii2": "*",
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"bower-asset/jstree": "*"
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},
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"autoload": {
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"psr-4": {
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"arogachev\\tree\\": "src"
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}
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}
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}

‎src/assets/JsTreeAsset.php‎

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<?php
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namespace arogachev\tree\assets;
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use yii\web\AssetBundle;
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class JsTreeAsset extends AssetBundle
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{
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/**
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* @inheritdoc
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*/
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public $sourcePath = '@bower/jstree/dist';
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/**
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* @inheritdoc
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*/
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public $js = [
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'jstree.min.js',
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];
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/**
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* @inheritdoc
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*/
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public $css = [
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'themes/default/style.min.css',
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];
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/**
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* @inheritdoc
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*/
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public $depends = [
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'yii\web\JqueryAsset',
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];
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}

‎src/assets/TreeAsset.php‎

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<?php
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namespace arogachev\tree\assets;
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use yii\web\AssetBundle;
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class TreeAsset extends AssetBundle
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{
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/**
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* @inheritdoc
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*/
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public $sourcePath = '@vendor/arogachev/yii2-tree/src/assets/src';
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/**
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* @inheritdoc
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*/
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public $publishOptions = [
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'forceCopy' => YII_DEBUG,
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];
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/**
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* @inheritdoc
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*/
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public $js = [
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'tree.js',
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];
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/**
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* @inheritdoc
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*/
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public $depends = [
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'yii\web\YiiAsset',
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'arogachev\assets\JsTreeAsset',
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];
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}

‎src/assets/src/tree.js‎

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yii.tree = (function($) {
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var pub = {
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modelClass: undefined,
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createNode: function(event, target) {
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$.post(
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'/tree/append-to',
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{
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modelClass: pub.modelClass,
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parentPk: target.parent
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},
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function(data) {
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$(event.target).jstree('set_id', target.node, data.pk);
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}
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);
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},
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renameNode: function(event, target) {
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if (target.text != target.old) {
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$.post(
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'/tree/rename',
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{
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modelClass: pub.modelClass,
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modelPk: target.node.id,
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name: target.text
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}
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);
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}
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},
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moveNode: function(event, target) {
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var tree = $(event.target);
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var prevPk = tree.jstree('get_prev_dom', target.node).attr('id');
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var nextPk = tree.jstree('get_next_dom', target.node).attr('id');
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if (target.old_parent != target.parent) {
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$.post(
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'/tree/append-to',
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{
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modelClass: pub.modelClass,
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parentPk: target.parent,
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modelPk: target.node.id
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}
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);
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return;
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}
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if (prevPk) {
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$.post(
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'/tree/insert-after',
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{
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modelClass: pub.modelClass,
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modelPk: target.node.id,
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prevModelPk: prevPk
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}
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);
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} else if (nextPk) {
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$.post(
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'/tree/insert-before',
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{
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modelClass: pub.modelClass,
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modelPk: target.node.id,
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nextModelPk: nextPk
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}
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);
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}
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},
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deleteNode: function(event, target) {
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$.post(
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'/tree/delete',
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{
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modelClass: pub.modelClass,
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modelPk: target.node.id
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}
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);
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}
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};
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return pub;
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})(jQuery);

‎src/controllers/TreeController.php‎

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<?php
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namespace arogachev\tree\controllers;
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use arogachev\tree\helpers\NestedSetsHelper;
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use Yii;
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use yii\db\ActiveRecord;
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use yii\filters\ContentNegotiator;
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use yii\web\BadRequestHttpException;
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use yii\web\Controller;
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use yii\web\ForbiddenHttpException;
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use yii\web\NotFoundHttpException;
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use yii\web\Response;
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class TreeController extends Controller
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{
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/**
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* @inheritdoc
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*/
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public function behaviors()
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{
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return [
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[
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'class' => ContentNegotiator::className(),
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'formats' => [
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'application/json' => Response::FORMAT_JSON,
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],
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],
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];
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}
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/**
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* @inheritdoc
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*/
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public function beforeAction($action)
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{
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if (!parent::beforeAction($action)) {
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return false;
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}
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if (!Yii::$app->request->isAjax) {
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throw new ForbiddenHttpException('This page is not allowed for view.');
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}
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return true;
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}
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/**
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* @return array
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*/
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public function actionGetTree()
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{
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return NestedSetsHelper::getHierarchicalArray(Yii::$app->request->get('modelClass'));
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}
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/**
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* @return array
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* @throws BadRequestHttpException
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* @throws NotFoundHttpException
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*/
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public function actionAppendTo()
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{
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$parent = $this->getModel('parentPk');
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$model = $this->getModel(null, true);
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$model->appendTo($parent);
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return ['pk' => $model->primaryKey];
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}
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/**
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* @throws BadRequestHttpException
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* @throws NotFoundHttpException
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*/
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public function actionRename()
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{
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$model = $this->getModel();
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$model->name = Yii::$app->request->post('name');
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$model->save(false);
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}
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/**
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* @throws BadRequestHttpException
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* @throws NotFoundHttpException
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* @throws \Exception
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*/
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public function actionDelete()
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{
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$this->getModel()->deleteWithChildren();
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}
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/**
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* @throws BadRequestHttpException
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* @throws NotFoundHttpException
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*/
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public function actionInsertBefore()
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{
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$model = $this->getModel();
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$prevModel = $this->getModel('nextModelPk');
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$model->insertBefore($prevModel);
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}
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/**
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* @throws BadRequestHttpException
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* @throws NotFoundHttpException
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*/
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public function actionInsertAfter()
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{
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$model = $this->getModel();
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$nextModel = $this->getModel('prevModelPk');
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$model->insertAfter($nextModel);
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}
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/**
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* @param null|string $paramName
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* @param boolean $createIfNotFound
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* @return \yii\db\ActiveRecord|\creocoder\nestedsets\NestedSetsBehavior
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* @throws BadRequestHttpException
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* @throws NotFoundHttpException
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*/
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protected function getModel($paramName = null, $createIfNotFound = false)
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{
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$modelClass = Yii::$app->request->post('modelClass');
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if (!$modelClass) {
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throw new BadRequestHttpException('Model class must be specified in order to find model.');
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}
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$pk = Yii::$app->request->post($paramName ?: 'modelPk');
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if (!$pk && !$createIfNotFound) {
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throw new BadRequestHttpException('Model primary key must be specified in order to find model.');
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}
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if (!$createIfNotFound) {
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$model = $modelClass::findOne($pk);
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if (!$model) {
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throw new NotFoundHttpException('Model not found.');
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}
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} else {
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$model = new $modelClass;
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}
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if (!($model instanceof ActiveRecord)) {
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throw new BadRequestHttpException('Valid ActiveRecord model class must be specified.');
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}
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return $model;
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}
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}

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