Hierarchical Model Form Does Not Appear

We are currently creating forms for models in hierarchical relationships.
Below is the model file.

post.rb

 has_many:items
accepts_nested_attributes_for —items

item.rb

 has_one:heading, dependent::destroy
has_one:content,dependent::destroy
has_one:link,dependent::destroy
has_one:movie,dependent::destroy
has_one:photo,dependent::destroy
has_one:quate,dependent::destroy

accepts_nested_attributes_for —heading
accepts_nested_attributes_for:content
accepts_nested_attributes_for —link
accepts_nested_attributes_for —movie
accepts_nested_attributes_for —photo
accepts_nested_attributes_for:quate

heading, content, link, movie, photo, quote.rb
(This means that there are heading.rb, conten.rb, and link.rb respectively.And all of them have the following settings in common.)

belongs_to:item

posts_controller.rb

def new
        @post=current_user.posts.build
end

def create

    @post=current_user.posts.build(post_params)

    response_to do | format |

        [email protected]
            format.html {redirect_to@post,notice: 'created!!'}
        else
            format.html {render:new}
        end
end

def post_params
        param.require(:post).permit(:title,:description,:image,:user_id,
        items_attributes: [:id,:order,
            heading_attributes: [:id,:head],
            photo_attributes: [:id,:image,:title,:q_url],
            movie_attributes: [:id,:y_url],
            quote_attributes: [:id,:quate,:q_url,:q_title,:q_comment],
            content_attributes: [:id,:content],
            link_attributes: [:id,:url,:l_text],
            twitter_attributes: [:id,:t_url]
            ])
end

posts/new_and_edit.html.erb

<%=form_for(@post)do|f|%>
    <%[email protected] y?%>
      <ul>
        <%@post.errors.full_messages.each do | msg|%>
        <li><%=msg%></li>
        <%end%>
      </ul>
    <%end%>

<%=f.label: title%>
<%=f.text_field: title%>

<%=f.label:description%>
<%=f.text_field:description%>

<%=f.label: image%>
<%=f.file_field: image%>

<%=f.hidden_field: user_id%>

<%=f.submit%>

  <%=render'posts/item_form_fields', name: 'headings'%>
  <%=render 'posts/item_form_fields', name: 'contents'%>
  <%=render'posts/item_form_fields', name: 'movies'%>
  <%=render'posts/item_form_fields', name: 'quates'%>
  <%=render'posts/item_form_fields', name: 'links'%>
  <%=render'posts/item_form_fields', name: 'photos'%>

posts/_item_form_fields.html.erb

<%=form_for(@post,remote:false)do|m|%>
    <%=render 'items/form_fields', m:m, name:name%>
    <%=m.submit "Create"%>
<%end%>

items/_form_fields.html.erb

<%=m.fields_for:items,@item do|b|%>
  <%=b.hidden_field:order,value:'0'%>

  <%=render "#{name}/form_fields", b:b%>
<%end%>

headings/_form_fields.html.erb

<%=b.fields_for:heading, @item.build_heading do | h | %>
  <%=h.text_field:head%>
<%end%>

As mentioned above, I have _form_fields.html.erb for the content, link, movie, photo, and quote tables respectively.

When running in the current local environment, child related forms (heading, content, etc.) are not displayed."Also, if you click ""Create"", the post_params of the post_controller will display the following error:

param is missing or the value is empty:post

Could someone help me?

ruby-on-rails ruby rails-activerecord

2022-09-30 18:43

1 Answers

Why don't you set @post=current_user.posts.build to @post=current_user.posts.items.build in the new action?
For more information, see "Fields_for disappear when adding acceptances_nested_attributes_for"

2022-09-30 18:43

If you have any answers or tips

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