#CakePHP3-Proffer An upload plugin for CakePHP 3.

##What is it? So I needed a way to upload images in CakePHP 3, and as I couldn't find anything that I liked I decided to write my own in a similar vein to how @josegonzalez had written his CakePHP-Upload plugin for CakePHP 2.

##Requirements

• PHP 5.4+
• Database
• CakePHP 3
• File Info is enabled for mimetype validation

##Status This is currently in alpha, but will upload images for you.

##Installation You can find it on Packagist https://packagist.org/packages/davidyell/proffer

Getting the plugin

Add it to your composer.json in your require section "davidyell/proffer": "dev-master" and then run composer update.

CakePHP

Then you'll need to load the plugin in your config/bootstrap.php file. Plugin::load('Proffer');.

Database

Next you need to add the fields to your table. You'll want to add your file upload field, this will store the name of the uploaded file such as example.jpg and you also need the dir field to store the directory in which the file has been stored. By default this is dir.

##Configuration You will need to add the behaviour to your Table class.

<?php
$this->addBehavior('Proffer.Proffer', [
	'photo' => [	// The name of your upload field
		'root' => WWW_DIR . 'files', // Customise the root upload folder here, or leave blank to use the default
		'dir' => 'photo_dir',	// The name of the field to store the folder
		'thumbnailSizes' => [
			'square' => ['w' => 200, 'h' => 200],	// Define the size and prefix of your thumbnails
			'portrait' => ['w' => 100, 'h' => 300, 'crop' => true],		// Crop will crop the image as well as resize it
		],
		'thumbnailMethod' => 'imagick'	// Options are Imagick, Gd or Gmagick
	]
]);

Each upload field should have an array of settings which control the options for that upload field. In the example above my upload field is called photo and I pass an array of options, namely the name of the field to store the directory in.

By default files will be uploaded to /webroot/files/<table alias>/<uuid>/<filename>.

In order to upload a file to your application you will need to add the form fields to your view.

echo $this-Form->create($entity, ['type' => 'file']); // Dont miss this out or no files will upload
echo $this->Form->input('image', ['type' => 'file']);
echo $this->Form->button(__('Submit'));
echo $this->Form->end();

This will turn your form into a multipart form and add the relevant fields.

##Validation Proffer comes with some basic validation rules which you can use to validate your uploads. In order to use these you will need to load the validation rules and apply them to your field.

In your validation function in your table class you'll need to add the validator as a provider and then apply the rules.

<?php
$validator->provider('proffer', 'Proffer\Model\Validation\ProfferRules');

// Check the filesize in bytes
$validator->add('photo', 'proffer', [
	'rule' => ['filesize', 2000000],
	'provider' => 'proffer'
])

// Make sure the extension matches
->add('photo', 'proffer', [
	'rule' => ['extension', ['jpg', 'jpeg', 'png']],
	'message' => 'Invalid extension',
	'provider' => 'proffer'
])

// Ensure that the upload is the correct mime type
->add('photo', 'proffer', [
	'rule' => ['mimetype', ['image/jpeg', 'image/png']],
	'message' => 'Not the correct mime type',
	'provider' => 'proffer'
])

// Set the thumbnail resize dimensions
->add('photo', 'proffer', [
	'rule' => ['dimensions', [
		'min' => ['w' => 100, 'h' => 100],
		'max' => ['w' => 500, 'h' => 500]
	]],
	'message' => 'Image is not correct dimensions.',
	'provider' => 'proffer'
]);

You can read more about custom validation providers in the book.

##Customisation Proffer uses an event listener to generate thumbnails. If you want to customise your thumbnail generation in any way you can either create your own listener and listen for the Proffer.beforeThumbs and Proffer.afterThumbs methods, or just extend and overload the methods in the default listener located in src/Event/ProfferListener.php.

The listener is separated from the thumbnail generation allowing you to hook to your own class which allows you to use your own image library if you don't want to use Imagine.

The thumbnails are generated using the Imagine library. So you can use the documentation there to build your own thumbnail generating listeners.

By default generated thumbnail images will be set to the highest image quality in the ImageTransform class.

##Proffer shell tasks Proffer comes with a built in shell which can help you achieve certain things when dealing with your uploaded files. To find out more about the shell you can use the -h flag on the command line.

$ bin/cake proffer.proffer -h

###Regenerate thumbnail task If you would like to regenerate the thumbnails for files already on your system, or you've changed your configuration. You can use the built-in shell to regenerate the thumbnails for a table.

$ bin/cake proffer.proffer generate <table>

###Cleanup task The cleanup task will look at a models uploads folder and match the files there with it's matching entry in the database. If a file doesn't have a matching record in the database it will be deleted.

$ bin/cake proffer.proffer cleanup <table>

##Contribution Please open a pull request or submit an issue if there is anything you would like to contribute. Please write a test for any new functionality that you add and be sure to run the tests before you commit. Also don't forget to run PHPCS with the PSR2 standard to avoid errors in TravisCI.

##License Please see LICENSE