paolzi / yii2-materialized-path

Yii2 的 Materialized Path 行为

安装数: 15,914

依赖者: 8

建议者: 0

安全性: 0

星标: 26

关注者: 3

分支: 7

开放问题: 0

类型:yii2-extension

v2.1.1 2020-12-04 15:27 UTC

This package is auto-updated.

Last update: 2024-09-04 23:21:45 UTC


README

实现将树存储在数据库表中的物化路径算法。

Packagist Version Code Coverage Build Status Total Downloads

安装

通过 Composer 安装

composer require paulzi/yii2-materialized-path

或添加

"paulzi/yii2-materialized-path" : "^2.1"

到您的 composer.json 文件的 require 部分。

迁移示例

单个树迁移

class m150828_150000_single_tree extends Migration
{
    public function up()
    {
        $tableOptions = null;
        if ($this->db->driverName === 'mysql') {
            // http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci
            $tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB';
        }
        $this->createTable('{{%single_tree}}', [
            'id'    => Schema::TYPE_PK,
            'path'  => Schema::TYPE_STRING . ' NULL',
            'depth' => Schema::TYPE_INTEGER . ' NOT NULL',
            'sort'  => Schema::TYPE_INTEGER . ' NOT NULL',
            'name'  => Schema::TYPE_STRING . ' NOT NULL', // example field
        ], $tableOptions);
        $this->createIndex('path', '{{%single_tree}}', ['path']);
    }
}

多个树迁移

class m150828_150100_multiple_tree extends Migration
{
    public function up()
    {
        $tableOptions = null;
        if ($this->db->driverName === 'mysql') {
            // http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci
            $tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB';
        }
        $this->createTable('{{%multiple_tree}}', [
            'id'    => Schema::TYPE_PK,
            'tree'  => Schema::TYPE_INTEGER . ' NULL',
            'path'  => Schema::TYPE_STRING . ' NULL',
            'depth' => Schema::TYPE_INTEGER . ' NOT NULL',
            'sort'  => Schema::TYPE_INTEGER . ' NOT NULL',
            'name'  => Schema::TYPE_STRING . ' NOT NULL', // example field
        ], $tableOptions);
        $this->createIndex('path', '{{%multiple_tree}}', ['tree', 'path']);
    }
}

配置

use paulzi\materializedPath\MaterializedPathBehavior;

class Sample extends \yii\db\ActiveRecord
{
    public function behaviors() {
        return [
            [
                'class' => MaterializedPathBehavior::className(),
                // 'treeAttribute' => 'tree',
            ],
        ];
    }

    public function transactions()
    {
        return [
            self::SCENARIO_DEFAULT => self::OP_ALL,
        ];
    }
}

可选地,您可以设置查询以查找根节点

class Sample extends \yii\db\ActiveRecord
{
    public static function find()
    {
        return new SampleQuery(get_called_class());
    }
}

查询类

use paulzi\materializedPath\MaterializedPathQueryTrait;

class SampleQuery extends \yii\db\ActiveQuery
{
    use MaterializedPathQueryTrait;
}

可排序行为

此行为附加了 SortableBehavior。您可以使用其方法(例如,reorder())。

选项

  • $pathAttribute = 'path' - 在表模式中设置路径属性。
  • $depthAttribute = 'depth' - 在表模式中设置深度属性。
  • $itemAttribute = null - 在表模式中设置项属性以获取路径,如果未设置值,则使用主键。
  • $treeAttribute = null - 对于多树,当项属性不是主键时,设置树属性。
  • $sortable = [] - SortableBehavior 设置 - 查看 paulzi/yii2-sortable
  • $delimiter = '/' - 路径项的分隔符。
  • $rootDepthValue = 0 - 设置根节点 $depthAttribute 的值。

用法

选择

获取根节点

如果您连接 MaterializedPathQueryTrait,则可以获取所有根节点

$roots = Sample::find()->roots()->all();

获取节点的祖先

获取节点祖先的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$parents = $node11->parents; // via relation
$parents = $node11->getParents()->all(); // via query
$parents = $node11->getParents(2)->all(); // get 2 levels of ancestors

获取节点父节点的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$parent = $node11->parent; // via relation
$parent = $node11->getParent()->one(); // via query

获取节点根节点的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$root = $node11->root; // via relation
$root = $node11->getRoot()->one(); // via query

获取节点的后代

获取节点所有后代的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$descendants = $node11->descendants; // via relation
$descendants = $node11->getDescendants()->all(); // via query
$descendants = $node11->getDescendants(2, true)->all(); // get 2 levels of descendants and self node

填充节点的 children 关系,包括节点及其后代

$node11 = Sample::findOne(['name' => 'node 1.1']);
$tree = $node11->populateTree(); // populate all levels
$tree = $node11->populateTree(2); // populate 2 levels of descendants

获取节点子节点的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$children = $node11->children; // via relation
$children = $node11->getChildren()->all(); // via query

获取叶节点

获取节点所有叶的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$leaves = $node11->leaves; // via relation
$leaves = $node11->getLeaves(2)->all(); // get 2 levels of leaves via query

获取相邻节点

获取下一个节点的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$next = $node11->next; // via relation
$next = $node11->getNext()->one(); // via query

获取上一个节点的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$prev = $node11->prev; // via relation
$prev = $node11->getPrev()->one(); // via query

一些检查

$node1 = Sample::findOne(['name' => 'node 1']);
$node11 = Sample::findOne(['name' => 'node 1.1']);
$node11->isRoot() - return true, if node is root
$node11->isLeaf() - return true, if node is leaf
$node11->isChildOf($node1) - return true, if node11 is child of $node1

修改

创建根节点的方法

$node11 = new Sample();
$node11->name = 'node 1.1';
$node11->makeRoot()->save();

注意:如果您允许多个树并且属性 tree 未设置,则自动采用主键值。

将节点作为另一个节点的第一个子节点添加的方法

$node1 = Sample::findOne(['name' => 'node 1']);
$node11 = new Sample();
$node11->name = 'node 1.1';
$node11->prependTo($node1)->save(); // inserting new node

将节点作为另一个节点的最后一个子节点添加的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$node12 = Sample::findOne(['name' => 'node 1.2']);
$node12->appendTo($node11)->save(); // move existing node

在另一个节点之前插入节点的方法

$node13 = Sample::findOne(['name' => 'node 1.3']);
$node12 = new Sample();
$node12->name = 'node 1.2';
$node12->insertBefore($node13)->save(); // inserting new node

在另一个节点之后插入节点的方法

$node13 = Sample::findOne(['name' => 'node 1.3']);
$node14 = Sample::findOne(['name' => 'node 1.4']);
$node14->insertAfter($node13)->save(); // move existing node

删除具有后代的节点的方法

$node11 = Sample::findOne(['name' => 'node 1.1']);
$node11->delete(); // delete node, children come up to the parent
$node11->deleteWithChildren(); // delete node and all descendants 

重新排序子节点

$model = Sample::findOne(1);
$model->reorderChildren(true); // reorder with center zero
$model = Sample::findOne(2);
$model->reorderChildren(false); // reorder from zero

从 1.x 升级到 2.x

  1. sortAttributestep 属性移动到 sortable 属性中。
  2. 将命名空间从 paulzi\materializedpath 更改为 paulzi\materializedPath
  3. 包含 paulzi\yii2-sortable (运行 composer update)。