Question

说我在Rails 4中有Library和Book个模型。

我还有一个book.json.jbuilder文件，它定义了如何在json中呈现Book。

我如何告诉library.json.jbuilder重用book.json.jbuilder来渲染book json而不是复制代码？

#library.json.jbuilder example
json.(@libraries) do |library|
    json.id library.id
    json.name library.name
    # instead of the line below, is it possible to tell jbuilder 
    # to render books using book.json.jbuilder?
    json.books library.books, :title, :author 
end

Answer 1

这可以使用partials来实现。

请参阅下面的示例，其中包含_book.json.jbuilder和_library.json.jbuilder部分。

此处有更多文档：https://github.com/rails/jbuilder

# books/_book.json.jbuilder
json.id book.id
json.title book.title
json.author book.author

# books/index.json.jbuilder
json.array! @books, partial: 'books/book', as: :book

# libraries/_library.json.jbuilder
json.id library.id
json.title library.name
json.books library.books, partial: 'books/book', as: :book

# libraries/index.json.jbuilder
json.array! @libraries, partial: 'libraries/library', as: :library

如何撰写不同的json jbuilder视图？

1 个答案: