YII2.0 中文件上传

最新推荐文章于 2022-08-09 15:23:02 发布

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最新推荐文章于 2022-08-09 15:23:02 发布

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分类专栏： php

本文链接：https://blog.youkuaiyun.com/chendongpu/article/details/46424463

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本文介绍如何在Yii框架中实现公司Logo的上传功能，包括数据库字段的添加、模型类的修改、表单处理及控制器的调整等步骤。

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1.在companies表里面添加一个名字为logo类型varchar(255)字段

2.修改models下的companies.php文件

class Companies extends \yii\db\ActiveRecord
{

public $file;

/**
* @inheritdoc
*/
public function rules()
{
    return [
        [['company_name' , 'company_email', 'company_address', 'company_created_date' ,'company_created_date', 'company_status' ], 'required'],
        [['company_created_date' ], 'safe'],
        [['company_status' ], 'string'],
        [['file' ], 'file'],
        [['company_name' , 'logo', 'company_email', 'company_address' ], 'string', 'max' => 255]
    ];
}

/**
* @inheritdoc
*/
public function attributeLabels()
{
    return [
        'company_id' => 'Company ID',
        'company_name' => 'Company Name',
        'company_email' => 'Company Email',
        'company_address' => 'Company Address',
        'file' => 'Logo',
        'company_created_date' => 'Company Created Date',
        'company_status' => 'Company Status',
    ];
}

}

3.在web文件夹加下面新建一个名字是uploads的文件夹

4.修改_form.php

<?php

use yii\helpers \Html;
use yii\ widgets\ActiveForm;

/* @var $this yii\web\View */
/* @var $model backend\models\Companies */
/* @var $form yii\widgets\ActiveForm */
?>

<div class= "companies-form">

    <?php $form = ActiveForm::begin (['options'=> ['enctype'=> 'multipart/form-data']]); ?>

#code ...

    <?= $form ->field( $model, 'file' )->fileInput () ?>

    <?= $form ->field( $model, 'company_status' )->dropDownList ([ 'active' => 'Active' , 'inactive' => 'Inactive', ], ['prompt' => 'Status']) ?>

    < div class="form-group" >
        <?= Html ::submitButton( $model->isNewRecord ? 'Create' : 'Update', ['class' => $model-> isNewRecord ? 'btn btn-success' : 'btn btn-primary' ]) ?>
    </ div>

    <?php ActiveForm::end (); ?>

</div>

5.修改控制器CompaniesController.php

/**
* Creates a new Companies model.
* If creation is successful, the browser will be redirected to the 'view' page.
* @return mixed
*/
public function actionCreate()
{
    if (Yii:: $app->user ->can( 'create-company')){
        $model = new Companies ();

        if ($model-> load(Yii ::$app-> request->post ()) ) {

            $imageName =$model-> company_name;
            // get the instance of the uploaded file
            $model->file =UploadedFile:: getInstance($model ,'file');

            $model->file ->saveAs( 'uploads/'.$imageName .'.'. $model->file ->extension);

            // save the path in the db column
            $model->logo ='uploads/'. $imageName.'.' .$model-> file->extension ;

            $model ->company_start_date=date ('Y-m-d H:i:s');

            $model ->company_created_date=date ('Y-m-d H:i:s');

            $model ->save();

            return $this ->redirect([ 'view', 'id' => $model->company_id ]);
        } else {
            return $this ->render( 'create', [
                'model' => $model,
            ]);
        }
    }else {
        throw new ForbiddenHttpException ;
    }

}