lito/yii2-cropper

Yii-Framework widget for uploading and cropping images

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Type:yii2-extension

2.0.6 2016-08-08 06:16 UTC

This package is not auto-updated.

Last update: 2024-07-07 04:09:55 UTC


README

Cropper

Yii-Framework extension for uploading and cropping images

Installation

The preferred way to install this extension is through composer.

Either run

php composer.phar require --prefer-dist lito/yii2-cropper "*"

or add

"lito/yii2-cropper": "*"

to the require section of your composer.json file.

Differences from the first version

Second version use JavaScript FileAPI for showing image without preloading to the server. Also this version has client validation.

Usage

Once the extension is installed, simply use it in your code by :

use lito\cropper\Widget;
<?php $form = ActiveForm::begin(['id' => 'form-profile']); ?>
    <?php echo $form->field($model, 'photo')->widget(Widget::className(), [
        'uploadUrl' => Url::toRoute('/user/user/uploadPhoto'),
    ]) ?>
    <div class="form-group">
        <?php echo Html::submitButton('Save', ['class' => 'btn btn-primary']) ?>
    </div>
<?php ActiveForm::end(); ?>

Widget has following properties:

Name Description Default Required
uploadParameter Upload parameter name file No
width The final width of the image after cropping 200 No
height The final height of the image after cropping 200 No
label Hint in box for preview It depends on application language. You can translate this message on your language and make pull-request. No
uploadUrl URL for uploading and cropping image Yes
noPhotoImage The picture, which is used when a photo is not loaded. You can see it on screenshots in this instructions No
maxSize The maximum file size (kb). 2097152 No
cropAreaWidth Width box for preview 300 No
cropAreaHeight Height box for preview 300 No
extensions Allowed file extensions (string). jpeg, jpg, png, gif No

In UserController:

public function actions()
{
    return [
        'uploadPhoto' => [
            'class' => 'lito\cropper\actions\UploadAction',
            'url' => 'http://your_domain.com/uploads/user/photo',
            'path' => '@frontend/web/uploads/user/photo',
        ]
    ];
}

Action has following parameters:

Name Description Default Required
path Path for saving image after cripping Yes
url URL to which the downloaded images will be available. Yes
uploadParameter Upload parameter name. It must match the value of a similar parameter of the widget. file No
maxSize The maximum file size (kb). It must match the value of a similar parameter of the widget. 2097152 No
extensions Allowed file extensions (string). It must match the value of a similar parameter of the widget. jpeg, jpg, png, gif No
width The final width of the image after cropping. It must match the value of a similar parameter of the widget. 200 No
height The final height of the image after cropping. It must match the value of a similar parameter of the widget. 200 No

You can use this widget on frontend and backend. For example: user can change his userpic and administrator can change users userpic.

Operates as follows:

User click on new photo area or drag file

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The picture is loaded by JavaScript FileAPI.

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This picture is displayed in the widget and users have the ability to crop it or upload another picture

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When the user clicks "Crop image", a request with file and coordinates is sent to the server. This picture is displayed in the form, and user can save it, or change crop area, or upload another photo.

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