使用Shopify API,Ruby on Rails为产品选择特定的元字段

时间:2012-07-18 09:12:13

标签: ruby-on-rails-3.1 shopify

在液体模板中,这样就可以实现:

{{ product.metafields.book.author }}

它返回'author'的值,因为它的关键'book'

我正在使用Shopify API和Ruby on Rails,并且已成功遍历给定产品的每个元数据域:

在控制器中:

@products = ShopifyAPI::Product.find(:all, :params => {:limit => 10})

在视图中:

<% @products.metafields.each do |metafield| %>
<%= metafield.key %> : <%= metafield.value %>
<% end %>

这将返回产品的所有元字段,如预期的那样。如何仅返回与特定键匹配的元字段,即上述示例中的“book”?

5 个答案:

答案 0 :(得分:7)

# add metafield
product = ShopifyAPI::Product.find(product_id)
product.add_metafield(ShopifyAPI::Metafield.new({
   :description => 'Author of book',
   :namespace => 'book',
   :key => 'author',
   :value => 'Kurt Vonnegut',
   :value_type => 'string'
}))

# retrieve metafield
author = ShopifyAPI::Metafield.find(:first,:params=>{:resource => "products", :resource_id => product.id, :namespace => "book", :key => "author"}).value

更多信息:http://www.shopify.com/technology/3032322-new-feature-metafields

答案 1 :(得分:1)

这似乎可以解决问题:

<% product.metafields.each do |metafield| %>
    <% if metafield.key == "book" %>
        <%= metafield.key %>: <%= metafield.value %><br/>
    <% end %>
<% end %>

<% product.metafields.each do |metafield| %>
    <% if metafield.key.include?("book") %>
        <%= metafield.key %>: <%= metafield.value %><br/>
    <% else %>
<% end %>

答案 2 :(得分:1)

ShopifyAPI::Metafield.find(:all,:params=>{:product_id => product.id, :key=> 'book'})

答案 3 :(得分:1)

这有效:

ShopifyAPI::Metafield.find(:first,:params=>{:resource => "products", :resource_id => 94549954, :key => "book"}) 

答案 4 :(得分:0)

您可以获取产品的所有元数据

@product = ShopifyAPI::Product.find(params[:id])

之后,你可以得到它的元场

@metafields = @product.metafields

或者,如果您只需要该产品的特定元字段

@metafield = ShopifyAPI::Product::Metafield.find(:all, where: {"product_id = ? AND metafield.key = ?", product.id, "book"})