rmrevin/yii2-comments

Comments module for Yii2

Yii 2 Comments Module

, _(*1)

Code Status

, _(*2)

Installation

composer require "rmrevin/yii2-comments:~1.4"

Configuration

In config /protected/config/main.php, _(*3)

<?php
return [
    // ...
    'modules' => [
        // ...
        'comments' => [
            'class' => 'rmrevin\yii\module\Comments\Module',
            'userIdentityClass' => 'app\models\User',
            'useRbac' => true,
        ]
    ],
    // ...
];

In your User model (or another model implements the interface IdentityInterface) need to implement the interface "\rmrevin\yii\module\Comments\interfaces\CommentatorInterface", _(*4)

class User extends \yii\db\ActiveRecord
    implements
        \yii\web\IdentityInterface,
        \rmrevin\yii\module\Comments\interfaces\CommentatorInterface
{
    // ...

    public function getCommentatorAvatar()
    {
        return $this->avatar_url;
    }

    public function getCommentatorName()
    {
        return $this->name;
    }

    public function getCommentatorUrl()
    {
        return ['/profile', 'id' => $this->id]; // or false, if user does not have a public page
    }

    // ...
}

In auth manager add rules (if Module::$useRbac = true):, _(*5)

<?php
use \rmrevin\yii\module\Comments\Permission;
use \rmrevin\yii\module\Comments\rbac\ItsMyComment;

$AuthManager = \Yii::$app->getAuthManager();
$ItsMyCommentRule = new ItsMyComment();

$AuthManager->add($ItsMyCommentRule);

$AuthManager->add(new \yii\rbac\Permission([
    'name' => Permission::CREATE,
    'description' => 'Can create own comments',
]));
$AuthManager->add(new \yii\rbac\Permission([
    'name' => Permission::UPDATE,
    'description' => 'Can update all comments',
]));
$AuthManager->add(new \yii\rbac\Permission([
    'name' => Permission::UPDATE_OWN,
    'ruleName' => $ItsMyCommentRule->name,
    'description' => 'Can update own comments',
]));
$AuthManager->add(new \yii\rbac\Permission([
    'name' => Permission::DELETE,
    'description' => 'Can delete all comments',
]));
$AuthManager->add(new \yii\rbac\Permission([
    'name' => Permission::DELETE_OWN,
    'ruleName' => $ItsMyCommentRule->name,
    'description' => 'Can delete own comments',
]));

Updating database schema

After you downloaded and configured rmrevin/yii2-comments, the last thing you need to do is updating your database schema by applying the migrations:, _(*6)

In command line:, _(*7)

php yii migrate/up --migrationPath=@vendor/rmrevin/yii2-comments/migrations/

Usage

In view, _(*8)

<?php
// ...

use rmrevin\yii\module\Comments;

echo Comments\widgets\CommentListWidget::widget([
    'entity' => (string) 'photo-15', // type and id
]);

Parameters

 Module parameters

• userIdentityClass (required, string) The user identity class that Yii2 uses to provide identity information about the users in the App., _(*9)

• useRbac (optional, boolean) Default TRUE. Defines if the comment system will use Rbac validation to check the comment permissions when trying to update, delete or add new comments., _(*10)

• modelClasses (optional, string[]) Stores the user defined model classes that will be used instead of the default ones in the comment system. Must have a key => classname format. e.g. 'Comment' => '@app\comments\CommentModel', _(*11)

Widget parameters

• entity (required, string) The entity that will identify the comments under on section from all the comments in this module., _(*12)

• theme (optional, string) In case you want to use a theme in your application you should define here it's location., _(*13)

• viewParams (optional, array) Data that will be sent directly into the widget view files. Must have a key => data format. The key will be the variable name in the view. The variable CommentsDataProvider it's already taken., _(*14)

• options (optional, array) Default ['class' => 'comments-widget']. Option data array that will be sent into the div holding the comment system in your views., _(*15)

• pagination (optional, array) Pagination configuration that will be used in the comment panel. Default data:, _(*16)

public $pagination = 
    [
        'pageParam' => 'page',
        'pageSizeParam' => 'per-page',
        'pageSize' => 20,
        'pageSizeLimit' => [1, 50],
    ];

• sort (optional, array) Type of sorting used to retrieve the comments into the panel. Can be sorted by any of the columns defined in the comment table. Default data:

        'defaultOrder' => [
            'id' => SORT_ASC,
        ],

• showDeleted (optional, boolean) Default True. Defines if the comments panel will show a message indicating the deleted comments., _(*17)

• showCreateForm (optional, boolean) Default True. Will show or hide the form to add a comment in this panel., _(*18)

Extending the package

 Extending Model files

Depending on which ones you need, you can set the modelMap config property:, _(*19)

    // ...
    'modules' => [
        // ...
        'comments' => [
            'class' => 'rmrevin\yii\module\Comments\Module',
            'userIdentityClass' => 'app\models\User',
            'useRbac' => true,
            'modelMap' => [
                'Comment' => '@app\comments\CommentModel'
            ]
        ]
    ],
    // ...

Attention: keep in mind that if you are changing the Comment model, the new class should always extend the package's original Comment class., _(*20)

 Attaching behaviors and event handlers

The package allows you to attach behavior or event handler to any model. To do this you can set model map like so:, _(*21)

    // ...
    'modules' => [
        // ...
        'comments' => [
            'class' => 'rmrevin\yii\module\Comments\Module',
            'userIdentityClass' => 'app\models\User',
            'useRbac' => true,
            'modelMap' => [
                'Comment' => [
                    'class' => '@app\comments\CommentModel',
                    'on event' => function(){
                        // code here
                    },
                    'as behavior' => 
                        ['class' => 'Foo'],
            ]
        ]
    ],
    // ...

Extending View files

You can extend the view files supplied by this package using the theme component in the config file., _(*22)

// app/config/web.php

'components' => [
    'view' => [
        'theme' => [
            'pathMap' => [
                '@vendor/rmrevin/yii2-comments/widgets/views' => '@app/views/comments', // example: @app/views/comment/comment-form.php
            ],
        ],
    ],
],

 Extending Widgets

To extend the widget code and behavior you only have to extend the widget classes and call them instead of the package's ones., _(*23)