YII2 无限级分类实用 - 教程 - Yii Framework 中文网

qiuxis 2016-09-30 01:26:43 9165次浏览 2条评论 7 0 0

model 文件 Lib.php 里面


namespace frontend\models;

use Yii;
use yii\behaviors\TimestampBehavior;
use yii\helpers\ArrayHelper;
/**
 * This is the model class for table "{{%lib}}".
 *
 * @property integer $libid
 * @property string $libname
 * @property integer $classid
 * @property integer $isuser
 * @property integer $isopen
 * @property string $libimg
 * @property string $note
 * @property integer $allowedit
 * @property integer $allowpractice
 * @property integer $comments
 * @property integer $onclick
 * @property integer $collection_num
 * @property integer $practice_num
 * @property integer $xbeans
 * @property integer $status
 * @property integer $created_by
 * @property integer $updated_by
 * @property integer $created_at
 * @property integer $updated_at
 *
 * @property LibClass $class
 */
class Lib extends \yii\db\ActiveRecord
{
    public $tree = [] ;
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return '{{%lib}}';
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['libname', 'classid', 'created_by', 'updated_by'], 'required'],
            [['classid', 'isuser', 'isopen', 'allowedit', 'allowpractice', 'comments', 'onclick', 'collection_num', 'practice_num', 'xbeans', 'status', 'created_by', 'updated_by', 'created_at', 'updated_at'], 'integer'],
            [['note'], 'string'],
            [['libname', 'libimg'], 'string', 'max' => 255],
            [['libname'], 'unique'],
            [['classid'], 'exist', 'skipOnError' => true, 'targetClass' => LibClass::className(), 'targetAttribute' => ['classid' => 'classid']],
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        $mappath = 'frontend/models/lib';
        return [
            'libid' => Yii::t($mappath, 'libid'),
            'libname' => Yii::t($mappath, 'libname'),
            'classid' => Yii::t($mappath, 'classid'),
            'isuser' => Yii::t($mappath, 'isuser'),
            'isopen' => Yii::t($mappath, 'isopen'),
            'libimg' => Yii::t($mappath, 'libimg'),
            'note' => Yii::t($mappath, 'note'),
            'allowedit' => Yii::t($mappath, 'allowedit'),
            'allowpractice' => Yii::t($mappath, 'allowpractice'),
            'comments' => Yii::t($mappath, 'comments'),
            'onclick' => Yii::t($mappath, 'onclick'),
            'collection_num' => Yii::t($mappath, 'collection_num'),
            'practice_num' => Yii::t($mappath, 'practice_num'),
            'xbeans' => Yii::t($mappath, 'xbeans'),
            'status' => Yii::t($mappath, 'status'),
            'created_by' => Yii::t($mappath, 'created_by'),
            'updated_by' => Yii::t($mappath, 'updated_by'),
            'created_at' => Yii::t($mappath, 'created_at'),
            'updated_at' => Yii::t($mappath, 'updated_at'),
        ];
    }

    /**
     *when create and update
     */
    public function behaviors()
    {
        return [TimestampBehavior::className()];
    }

    /**
     * @return \yii\db\ActiveQuery
     */
    public function getClass()
    {
        return $this->hasOne(LibClass::className(), ['classid' => 'classid']);
    }

    /**
     * @inheritdoc
     * @return LibQuery the active query used by this AR class.
     */
    public static function find()
    {
        return new LibQuery(get_called_class());
    }

    /**
     * @inheritdoc
     *
     */

    public function getData()
    {
        //$cates = LibClass::find()->asArray()->all();
        $cates = LibClass::find()->all();
        $cates = ArrayHelper::toArray($cates);
        return $cates;
    }

    public function getCatTree($cats , $bclassid = 0, $nu = 0 )
    {
        $bx = '---|' ;
        $nu++ ;
        foreach ($cats as $cat){
            $catid		= $cat['classid'];
            $catname	= $cat['classname'];
            $catbid		= $cat['bclassid'];
            $islast     = $cat['islast'];
            if ($catbid == $bclassid) {
                $this->tree[$catid]= str_repeat($bx, $nu) .'~'. $catname . ($islast ? '_last' : '') . PHP_EOL  ;
                $this->getCatTree($cats, $catid, $nu ) ;
            }
        }
    }

    public function tree() {
        $cats = $this->getData();
        $this->getCatTree($cats, 0, 0);
        return $this->tree ;
    }
}

//view 文件 _from.php 里面

<?= $form->field($model, 'classid')->dropDownList($model->tree(), ['prompt'=>'请选择']) ?>

//最终结果
QQ截圖20160930012553.png

风评论于 2016-09-30 15:29 举报

很不错的例子

回复 0 0

东汉末年分三国评论于 2016-10-28 18:21 举报

我的为什么会提示

QQ截图20161028181545.png

请帮我看一下，我贴上代码

<?php

namespace backend\models;

use Yii;
use yii\behaviors\TimestampBehavior;
use yii\helpers\ArrayHelper;
use yii\db\ActiveRecord;

/**
 * This is the model class for table "category".
 *
 * @property string $cateid
 * @property string $catename
 * @property string $parentid
 * @property string $createtime
 */
class Category extends \yii\db\ActiveRecord
{
    public $tree = [];
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'category';
    }

    /*
     *添加默认填充时间
     */
    public function behaviors() 
    {
        return [
            [
                'class' => TimestampBehavior::className(),
                'attributes' => [
                    ActiveRecord::EVENT_BEFORE_INSERT => ['createtime'],
                    ActiveRecord::EVENT_BEFORE_UPDATE => ['createtime'],
                ],
            ],
        ];
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['parentid'], 'integer'],
            [['catename'], 'string', 'max' => 32,'tooLong' => '分类名称太长了'],
            ['createtime', 'safe']
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        
        return [
            'cateid' => Yii::t('app', 'Cateid'),
            'catename' => Yii::t('app', 'Catename'),
            'parentid' => Yii::t('app', 'Parentid'),
            'createtime' => Yii::t('app', 'Createtime'),
        ];
    }
    public function getClass()
    {
        return $this->hasOne(Category::className(),['parentid' => 'parentid']);
    }

    public static function find()
    {
        return new CategoryQuery(get_called_class());
    }

    public function getData()
    {
        $cates = Category::find()->all();
        $cates = ArrayHelper::toArray($cates);
        return $cates;
    }

    public function getCatTree($cats,$bclassid= 0, $nu = 0)
    {
        $bx = '---|';
        $nu++;
        foreach ($cats as $cat) {
            $catid = $cat['parentid'];
            $catname = $cat['catename'];
            $catbcid = $cat['bclassid'];
            if ($catbcid == $bclassid) {
                $this->tree[$catid] = str_repeat($bx,$nu).'~'.$catename.PHP_EOL;
                $this->getCatTree($cats,$catid,$nu);
            }
        }
    }

    public function tree()
    {
        $cats = $this->getData();
        $this->getCatTree($cats,0,0);
        return $this->tree ;
    }
}

这是model的代码，视图中是这样的

<?= $form = ActiveForm::begin() ?>
		<?= $form->field($model,'cateid')->dropDownList($model->tree(),['prompt'=> '请选择']) ?>
	<?= $form->field($model,'catename')->textInput(['maxlength' => true]) ?>
	<div class="form-group">
		<?= Html::submitButton($model->isNewRecord ? 'Create' : 'Update', ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
	</div>
	<?= ActiveForm::end() ?>

共 1 条回复

qiuxis 评论于 2016-10-28 21:05 回复

先看看这个吧！
需要有个父ID，即 bclassid = 0
http://www.yiichina.com/tutorial/991

另外建议先打印出结果

您需要登录后才可以评论。登录 | 立即注册

主管

qiuxis

注册时间：2016-10-31
最后登录：2017-10-25
在线时长：22小时6分

粉丝21
金钱215
威望40
积分835

YII2 无限级分类实用 [ 2.0 版本 ]

共 2 条评论

发表评论

qiuxis

热门教程