Question

我是新手，正在开发应用程序。我的用户可以创建一个帖子，该帖子属于该用户。在我的索引用户上，我想为每个用户链接到user_post，我尝试了很多解决方案，但没有任何效果...

_list.html.erb：

<div id="filterrific_results">

<div>
  <%= page_entries_info users %>
</div>

<% @users.each do |user| %>
  <% if user.coach? %>
    <h1><%= user.fname %> <%= user.lname %></h1>
    <h2><%= user.mother_tongue %></h2>
      <center>
        <p><%= user.postal_code %> <%= user.locality %></p>

        <p><%= link_to "En savoir plus", **user_post_path** %></p>
      </center>
  <% end %>
<% end %>
</div>


<%= will_paginate users %>

编辑：路线：

  resources :users do
    resources :post
  end

Answer 1

用户和帖子之间是否具有has_one关系。您可以为帖子创建嵌套路线，例如

resource :user do
  resource :post, only: [:create]
end

Answer 2

您说“帖子”属于“用户”，我想这意味着您正在使用public class CalendarFragment extends Fragment { RecyclerView recyclerView; public Calendar currentDate = Calendar.getInstance(); ArrayList<Date> events; CalendarAdapter calendarAdapter; Context mContext; @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.recycler_calendar,container, false); Log.i("onCreateView", "fragment"); recyclerView = (RecyclerView) view.findViewById(R.id.rvNumbers); mContext = view.getContext(); events = new ArrayList<>(); events.add(new Date()); int numberOfColumns = 7; final GridLayoutManager gridLayoutManager = new GridLayoutManager(view.getContext(), numberOfColumns); recyclerView.setLayoutManager(gridLayoutManager); /*PagerSnapHelper snapHelper = new PagerSnapHelper(); snapHelper.attachToRecyclerView(recyclerView);*/ recyclerView.addItemDecoration((new DividerItemDecoration(view.getContext(),DividerItemDecoration.VERTICAL))); recyclerView.addItemDecoration((new DividerItemDecoration(view.getContext(), DividerItemDecoration.HORIZONTAL))); updateCalendar(events); return view; } @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); } public void updateCalendar() { updateCalendar(null); } public void updateCalendar(ArrayList<Date> events) { Log.i("update", "calendar"); ArrayList<Date> cells = new ArrayList<>(); Calendar calendar = (Calendar)currentDate.clone(); // determine the cell for current month's beginning calendar.set(Calendar.DAY_OF_MONTH, 1); int monthBeginningCell = calendar.get(Calendar.DAY_OF_WEEK) - 1; // move calendar backwards to the beginning of the week calendar.add(Calendar.DAY_OF_MONTH, -monthBeginningCell); // fill cells while (cells.size() < 42) { cells.add(calendar.getTime()); calendar.add(Calendar.DAY_OF_MONTH, 1); } // update grid Log.i("updatecalendar", String.valueOf(cells.size())); CalendarAdapter calendarAdapter = new CalendarAdapter(mContext, cells); recyclerView.setAdapter(calendarAdapter); } } and ViewPage adapter class public class SlideAdapter extends FragmentStatePagerAdapter { private Context context; private ArrayList<String> arrayList; private LayoutInflater mInflater; LinearLayout layoutSlide; Drawable d; ViewPager viewPager; CalendarFragment calendarFragment; List calendarFragmentList = new ArrayList(); public SlideAdapter(FragmentManager fragmentManager, List calendarFragmentList) { super(fragmentManager); this.context = context; this.calendarFragmentList = calendarFragmentList; Log.i("SlideAdapter", "constructor"); } @Override public int getCount() { return calendarFragmentList.size(); } @Override public Fragment getItem(int position) { return (Fragment)calendarFragmentList.get(position); } }和has_many。如果不是这种情况，请注意复数与单数有关。鉴于此，您需要从belongs_to中提取特定帖子。请参阅以下内容：

ActiveRecordRelation

这假设您已经设置了路线<% @users.each do |user| %> <%= user.fname %> #etc <% user.posts.each do |post| %> <%= link_to post.title, post %> <% end %> <% end %>

找不到如何链接到user_post

2 个答案: