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[英]Rails 6 Joins Tables using has_many relationships and accepts_nested_attributes_for
[英]has_many and accepts_nested_attributes_for with nested forms and jquery/ajax
我正在嘗試創建一個嵌套表單,其中有一個“ +”按鈕,可通過jquery和ajax添加字段。 我正在一次添加一個步驟,所以直到現在為止,我都可以按“ +”按鈕添加一個簡單的文本,但是,正如我剛才所說的,我想添加一些字段。
我有以下幾點:
new.html.erb
<h1>New Campaign</h1>
<%= form_for @campaign, html: { multipart: true } do |f| %>
....
<div class="goods">
<%= render "goods/good", f: f, child_index: Time.now.to_i %>
</div>
<div class="actions">
<%= link_to '+', add_good_row_path(params[:campaign]=@campaign, params[:f] = f), remote: true, class: 'btn btn-large btn-success' %>
<%= f.submit 'Crea', class: 'btn btn-large btn-warning' %>
</div>
<% end %>
goods / _good.html.erb
<%= f.fields_for :goods, @campaign.goods.build, child_index: child_index do |good| %>
<%= good.text_field :name, placeholder: 'Nome' %>
<%= good.text_area :description, placeholder: 'Descrizione' %>
<%= good.text_field :cost, placeholder: 'Costo' %>
<% end %>
campaigns_controller.rb
class CampaignsController < ApplicationController
....
def add_good_row
respond_to do |format|
format.js
end
end
end
add_good_row.js.erb
$('.goods').append("hello");
我認為我理解了問題,它是將f
變量, @campaign
變量和child_index
傳遞給局部變量,但是如何通過jquery做到這一點呢?
希望我很清楚...
看看這個寶石。
我想這就是你要找的
https://github.com/nathanvda/cocoon
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