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Informations about the package yii2-module-files
yii2-module-files
Этот файл доступен на русском языке.
About the module
This module was designed to solve the problem of creating file fields in ActiveRecord models of the Yii2 framework. The main components of the module are:
floor12\files\components\FileBehaviour
- behavior that must be connected to the ActiveRecord model;floor12\files\components\FileInputWidget
- an InputWidget that allows you to add, edit and generally work with files;floor12\files\components\FileListWidget
- an additional widget to display a list of files with the abilities to view images in the Lightbox2 gallery, download all files of the current field in zip format, and view the Word and Excel files using the Microsoft office online.
Key features
- adding one or more fields with files to the ActiveRecord model;
- setting up validation of these fields using the standard
FileValidator
defined in therules ()
section; - in the case of working with images - the ability to configure the image ratio (in this case, when loading an image
through the
FileInputWidget
widget will automatically open a modal window to crop the image with the desired ratio); - thumbnails creating with optimal sizes for each case in site template. Also, these thumbnails supports WEBP format;
- download files in ZIP-format
FileInputWidget
supports changing of files order by drag-and-drop, cropping and filename updating;- in case of drag-and-drop uploading, the file result file order is the same as on client folder;
- automatic horizon detection by EXIF tag;
- if you need to add images to the model not with the web interface of the site, but using console parsers and other
similar cases - its possible. For this case, the module includes two classes:
FileCreateFromInstance
andFileCreateFromPath
with helps add files to AR model from server file system; - in case of video files: recoding them to h264 using the ffmpeg utility;
i18n
At this stage, the module supports the following languages:
- English
- Russian
Principle of operation
All files data is stored in the file
table. The file
model relay to the model by three fields:
class
- the full class name of the relay modelfield
- the name of the model fieldobject_id
- primary key of the model
When file added to the form, it uploads to server in background where all processing takes place. As a result of this
processing, it is written to disk and a new entry is created for it in the file
table, with the fieldsclass
and
field
filled with data from the model, andobject_id
is empty and will assign only after saving the ActiveRecord
model. When a file is deleted from the widget, it is not deleted from the disk and the file
table, just obejct_id
equals to 0. You can use the console commandfiles / console / clean
to periodically clean up this kind of orphan
files.
Install and setup
To add this module to your app, just run:
or add this to the require
section of your composer.json.
Then execute a migration to create file
table.
After that, include module data in modules
section of application config:
Parameters to set:
storage
- the path alias to the folder to save files and image sources, by default it is located in thestorage
folder in the project root;cache
- path alias to the folder of thumbnails of images that the module creates on the fly upon request and caches;token_salt
- a unique salt to generate InputWidget tokens.
Usage
Work with ActiveRecord Model
To add one or more files fields to the ActiveRecord model, you need to connect floor12\files\components\FileBehaviour
to it and pass list the field names that will store the files in the model. For example, for the User model, 2 file
fields are defined here
: avatar
anddocuments
:
To have nice attribute labels in forms, add some labels to attributeLabels()
:
Setup validation rules in the rules()
method of ActiveRecord model:
Work with files
If maxFiles
in FileValidator
equals to 1, this attribute will store an floor12\files\models\File object
. Example:
If the file is image, getPreviewWebPath method returns a web path to image thumbnail. By default thumbnail created with the jpeg or png format, it depends to source file. But also WEBP option is available.
File::getPreviewWebPath(int $width = 0, int $height = 0 ,bool $webp = false)
Usage example:
When maxFiles
equals to 1, multiple upload is available. In this case, model field will contains an array
if floor12\files\models \File
objects:
Here is another example, the advanced usage of thumbnails. In this case, we use modern picture
andsource
tags, as
well as media queries. As a result, we have 8 different thumbnails: 4 has webp format for those browsers that support
this it, and 4 has jpeg format. Devices with retina displays will get an images with double resolution, regular screens
have regular sized pictures. This example also uses different images widths at different screen widths (just as example
of mobile/desktop image switching):
Picture tag widget
If object if tyle File
is image ($file->isImage() === true
), it can be used with PictureWidget
. This widget helps
generate html tag
will make this html:
Additional parameters allowed to pass media-queries to widget.
Listing the files
There is a widget for listing all files. It supports Lightbox2 gallery to display images and MS Office files preview. Its also supports downloading of the all the files attached to the field in a ZIP-archive.
An array of File
objects must be passed to the widget files
field. Also additional parameters available:
title
- optionally set the title of the block (by default its taken fromAttributeLabels()
)",downloadAll
- show the "download all" button,zipTitle
- set the file name of zip archive,passFirst
- skip first file in array (it is often necessary to display the gallery without the first picture. For example, in the news view page, when the first image used to be news main image).
InputWidget for ActiveFrom
To display files block in your forms use the floor12\files\components\FileInputWidget
:
Moreover, if maxFiles
parameter inFileValidator
equals to 1 or more, FileInputWidget
will take the necessary form
to load one file or several at once. If necessary, you can pass uploadButtonText
anduploadButtonClass
parameters to
the widget.
Contributing
I will be glad of any help in the development, support and bug reporting of this module.
All versions of yii2-module-files with dependencies
yiisoft/yii2 Version ^2.0.
ext-gd Version *
ext-zip Version *
ext-exif Version *
yiisoft/yii2-jui Version *
yii2mod/yii2-enum Version ^1.7
floor12/yii2-notification Version *
bower-asset/cropper Version *
bower-asset/lightbox2 Version *
bower-asset/simple-ajax-uploader Version >=2.6.7
ext-fileinfo Version *