README

此包允许轻松地按任何PHP对象（模型、模型数组/集合等）对Laravel集合进行分组，而不仅限于标量（字符串、数字、布尔值）。

安装

通过composer安装

composer require melihovv/collection-grouped-by-model

用法

$posts = Post::all()
$postsGroupedByAuthor = (new CollectionGroupedByModel($posts))->groupByModel('author_id', 'author');

foreach ($postsGroupedByAuthor as $authorPosts) {
  $authorPosts->model(); // returns posts' author
  $authorPosts->collection(); // returns author's posts
}

嵌套分组：首先按类别分组产品，然后按制造商分组。

$products = Product::all();
$groupedProducts = (new CollectionGroupedByModel($products))
    ->groupByModel('category_id', 'category')
    ->transform(function (CollectionGroupedByModel $productsGroupedByCategory) {
      return $productsGroupedByCategory->groupByModel('manufacturer_id', 'manufacturer');
    });

foreach ($groupedProducts as $categoryProducts) {
  $categoryProducts->model(); // returns category

  foreach ($categoryProducts->collection() as $manufacturerProducts) {
    $manufacturerProducts->model(); // returns manufacturer
    $manufacturerProducts->collection(); // returns products grouped by category and manufacturer
  }
}

按多个模型分组

$posts = Post::all()
$postsGroupedByAuthorAndCategory = (new CollectionGroupedByModel($posts))
    ->groupByModel(function (Post $post) {
      return "$post->author_id,$post->category_id";
    }, function (Post $post) {
      return [$post->author, $post->category];
    });

foreach ($postsGroupedByAuthorAndCategory as $authorPostsInCategory) {
  list($author, $category) = $authorPostsWithCategory->model();
  // or using php 7.1 array destruction
  [$author, $category] = $authorPostsWithCategory->model();
  $authorPostsWithCategory->collection(); // returns author's posts in category
}

安全性

如果您发现任何与安全性相关的问题，请通过电子邮件 amelihovv@ya.ru 联系，而不是使用问题跟踪器。

致谢

• Alexander Melihov
• 所有贡献者

此包是通过melihovv/laravel-package-generator的帮助启动的。