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Informations about the package yii2-upload-behavior
Upload behavior for Yii 2
This behavior automatically uploads file and fills the specified attribute with a value of the name of the uploaded file. This code is inspired by, but not derived from, https://github.com/yii-dream-team/yii2-upload-behavior.
Installation
The preferred way to install this extension via composer.
Either run
or add this code line to the require section of your composer.json file:
Usage
Upload file
Attach the behavior in your model:
Set model scenario in controller action:
Example view file:
Upload image and create thumbnails
Thumbnails processing requires yiisoft/yii2-imagine to be installed.
Attach the behavior in your model:
Flexible configuration for path and URL generation
More flexible configuration for path and/or url behavior properties is that to use
callbacks or array for defining path or url generation logic.
I. Via callbacks
II. Via array configuration by defining class and its static methods for path/URL generation
Usage in views
Example:
Behavior Options
- attribute - The attribute which holds the attachment
- scenarios - The scenarios in which the behavior will be triggered
- instanceByName - Getting file instance by name, If you use UploadBehavior in
RESTfullapplication and you do not need a prefix of the model name, set the propertyinstanceByName = false, default value isfalse - path - the base path or path alias to the directory in which to save files.
- url - the base URL or path alias for this file
- generateNewName - Set true or anonymous function takes the old filename and returns a new name, default value is
true - unlinkOnSave - If
truecurrent attribute file will be deleted, default value istrue - unlinkOnDelete - If
truecurrent attribute file will be deleted after model deletion. - deleteOriginalFile - Only for UploadImageBehavior. If
trueoriginal image file will be deleted after thumbs generating, default value isfalse.
Attention!
It is prefered to use immutable placeholder in url and path options, other words try don't use related attributes that can be changed. There's bad practice. For example:
If related model attribute slug will change, you must change folders' names too, otherwise behavior will works not correctly.
