在Rails 5中的循环内渲染局部 [英] Render partials inside loop in Rails 5
问题描述
问题:如何通过不同的变量进行局部(必须是通用的)循环?
Question: How do I make a partial (that has to be generic) loop through different variables?
我有一个选项卡式页面,我想在其中使用部分页面以避免重复HTML.选项卡是视频"和文章".这是完全相同的HTML,但是我要遍历@videos的视频和@articles的文章.
I have a tabbed page where I want to use a partial to avoid duplicating my HTML. The tabs are "Videos" and "Articles". It's the exact same HTML but I want to iterate through @videos for videos and @articles for articles.
想法是使产品部分完全通用,然后以某种方式传入我要迭代的@videos或@articles.
The idea was to make the product partial completely generic and then somehow pass in @videos or @articles that I want to iterate through.
部分:_product.html.slim
Partial: _product.html.slim
.col-md-5
.thumbnail
.thumb.spacer-sm
- if product.image.blank?
iframe allowfullscreen="" frameborder="0" mozallowfullscreen="" src="https://player.vimeo.com/product/#{product.vimeo_id}" webkitallowfullscreen=""
- elsif product.vimeo_id.blank?
= image_tag(product.image.url,
class: 'img img-responsive img-rounded')
.caption
.content-group-sm.media
.media-body
h6.text-semibold.no-margin
= product.name
small.text-muted
| by
= product.user.name
- unless product.price.blank?
h6.text-success.media-right.no-margin-bottom.text-semibold
| $
= product.price
= product.description
.panel-footer.panel-footer-transparent
.heading-elements
ul.list-inline.list-inline-separate.heading-text
li
= link_to 'Delete', product_path(product), method: :delete
li
= link_to 'Edit', edit_product_path(product)
HTML视图呈现部分视图:
HTML view rendering the partial:
.page-container.spacer-minus
.page-content
.row
.col-md-4
.sidebar-default.sidebar-separate
.sidebar-content
.content-group
.panel.no-border-radius-top
ul.navigation
li.navigation-header Navigation
li.active
a data-toggle="tab" href="#videos"
i.icon-video-camera2
| Videos
li
a data-toggle="tab" href="#articles"
i.icon-graduation
| Articles
.col-md-8
.tab-content
#videos.tab-pane.fade.in.active
.row
- @videos.each do |product|
= render 'shared/product'
#articles.tab-pane.fade
.row
- @articles.each do |product|
= render 'shared/product'
我只需要循环就可以了解要迭代的变量.我不能在部分文件中包含@video或@article,因为那样会破坏拥有通用部分文件的目的.
I just need my loop to understand what variable I want to iterate through. I cannot include @video or @article in the partial since that will defeat the purpose of having a generic partial.
通过此实现,我得到了错误:
undefined local variable or method `product' for #<#<Class:0x007fc58053ae60>:0x007fc58884ea68>
With this implementation, I get the error:
undefined local variable or method `product' for #<#<Class:0x007fc58053ae60>:0x007fc58884ea68>
推荐答案
尝试以下代码:
#videos.tab-pane.fade.in.active .row -
@videos.each do |video|
= render 'shared/product', product: video
#articles.tab-pane.fade .row -
@articles.each do |article|
= render 'shared/product', product: article
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