#conversation doesn't seem to load the actual conversation. I get a nilClass error when loading an individual conversation and I'm not sure why. I feel like I'm missing something silly.
Here is the error (which persists to any use of conversation in the show view):
undefined method `participants' for nil:NilClass
Extracted source (around line #1):
<% conversation.participants.each do |participant| %>
<% unless participant == current_user %>
<%= gravatar_for participant %>
<% end %>
<% end %>
Rails.root: /home/alex/workspace/meetexplore_app
Application Trace | Framework Trace | Full Trace
app/views/conversations/_participants.html.erb:1:in `_app_views_conversations__participants_html_erb___865731980245228929_7035 9899418680'
app/views/conversations/show.html.erb:4:in `_app_views_conversations_show_html_erb__775537665966091139_41963900'
My conversations/show.html.erb file:
<% page_header "Conversation" %>
<p>Chatting with
<%= render 'conversations/participants', conversation: #conversation %>
</p>
<div class="panel panel-default">
<div class="panel-heading"><%= #conversation.subject %></div>
<div class="panel-body">
<div class="messages">
<% #conversation.receipts_for(current_user).each do |receipt| %>
<div class="media">
<% message = receipt.message %>
<div class="media-left">
<%= gravatar_for message.sender, 45, message.sender.name %>
</div>
<div class="media-body">
<h6 class="media-heading"><%= message.sender.name %>
says at <%= message.created_at.strftime("%-d %B %Y, %H:%M:%S") %></h6>
<%= message.body %>
</div>
</div>
<% end %>
</div>
</div>
</div>`
My _participants.html.erb partial:
<% conversation.participants.each do |participant| %>
<% unless participant == current_user %>
<%= gravatar_for participant %>
<% end %>
<% end %>
Yet this index works:
<% page_header "Your Conversations" %>
<p><%= link_to 'Start conversation', new_message_path, class: 'btn btn-lg btn-primary' %></p>
<ul class="list-group">
<%= render partial: 'conversations/conversation', collection: #conversations %>
</ul>
<%= will_paginate %>
_conversation.html.erb partial:
<li class="list-group-item clearfix">
<%= link_to conversation.subject, conversation_path(conversation) %>
<p><%= render 'conversations/participants', conversation: conversation %></p>
<p><%= conversation.last_message.body %>
<small>(<span class="text-muted"><%= conversation.last_message.created_at.strftime("%-d %B %Y, %H:%M:%S") %></span>)</small></p>
</li>
So I was missing the before_action and function get_conversation to actually find the conversation with the proper id... woops!
Related
I'm working on a kind of blog and would like the render a partial from my controller if a condition is true.
This is my controller method:
def comments_session
render partial: 'comments/form' if signed_in?
render partial: 'comments/show'
end
And this is my view:
<%= comments_session %>
These are my partials:
_show.html.erb
<% #post.comments.sort_by(&:created_at).reverse.each do |comment| %>
<div class="col-lg-12 mt-3 pt-3 border-top">
<% if signed_in? %>
<% if current_user.username == comment.user.username %>
<%= link_to 'Excluir', post_comment_path(#post, comment), :class =>"btn btn-sm btn-danger btn_round float-right border-dark",
method: :delete, data: {confirm: "Deseja realmente excluir esse comentário?"} %>
<% else %>
<% end %>
<% else %>
<% end %>
<h6><strong>~ <%= comment.user.username %></strong></h6>
<p class="comment"><%= comment.body %></p>
<p class="lead distance_of_time"><small>
<%= time_ago_in_words(comment.created_at) %>
</small></p>
</div>
<% end %>
and _form.html.erb
<%= form_with(model: #comment, url: [#post, #comment], local: true) do |f| %>
<% if #comment.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(comment.errors.count, "error") %> prohibited this comment from being saved:</h2>
<ul>
<% comment.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="row">
<div class="col-lg-10 form-group">
<%= f.text_area :body, :class =>"form-control", :placeholder =>"Escreva o Que Quiser!" %>
</div>
<div class="col-lg-1 form-group">
<%= f.submit "Comentar", :class =>"btn btn-lg btn-primary border-dark text-light" %>
</div>
</div>
<% end %>
The method renders "_show.html.erb" perfectly, but doesn't do the same with the other...
I tried to change and remove the condition, but it didn't work :/
Please, I'd like to know why I can't render it
Thanks!
Rails is not allowed to render more than one partial in controller.
def comments_session
if signed_in?
render partial: 'comments/form'
else
render partial: 'comments/show'
end
end
Can you try this way?
def comments_session
return render partial: 'comments/form' if signed_in?
render partial: 'comments/show'
end
I think you're getting a DoubleRenderError or something like that
I get this error: app/views/topics/show.html.erb:49: syntax error, unexpected keyword_ensure, expecting keyword_end. I don't have a line 49. I checked to see if I was missing any <% end %> and I find that I don't.
<h1><%= #topic.name %></h1>
<% if user_is_authorized_for_topics? || if user.moderator? %>
<%= link_to "Edit Topic", edit_topic_path, class: 'btn btn-success' %>
<% end %>
<% if user_is_authorized_for_topics?%>
<%= link_to "Delete Topic", #topic, method: :delete, class: 'btn btn-danger', data: { confirm: 'Are you sure you want to delete this topic?' } %>
<% end %>
<div class="row">
<div class="col-md-8">
<p class="lead"><%= #topic.description %></p>
<% #topic.posts.each do |post| %>
<div class="media">
<div class="media-body">
<h4 class="media-heading">
<%= link_to post.title, topic_post_path(#topic, post) %>
</h4>
<small>
submitted <%= time_ago_in_words(post.created_at) %> ago by <%= post.user.name %> <br>
<%= post.comments.count %> Comments
</small>
</div>
</div>
<% end %>
<% #topic.sponsored_posts.each do |sponsored_post| %>
<div class="media">
<div class="media-body">
<h4 class="media-heading">
<%= link_to sponsored_post.title, topic_sponsored_post_path(#topic, sponsored_post) %>
</h4>
<small>
submitted <%= time_ago_in_words(sponsored_post.created_at) %> ago <br>
</small>
</div>
</div>
<% end %>
</div>
<% if current_user %>
<div class="col-md-4">
<%= link_to "New Post", new_topic_post_path(#topic), class: 'btn btn-success' %>
</div>
<% end %>
</div>
Probably this line:
<% if user_is_authorized_for_topics? || if user.moderator? %>
You only need if once, like this:
<% if user_is_authorized_for_topics? || user.moderator? %>
I have a blog rails app where users can comment on an article and the article author can message the user directly from the comment for which i have added a send message button, i am using mailbox for getting the message option, everything is working but the problem is when there are multiple comments the message button also get multiplied, but i don't want that what i am trying to have is one message button for each comment.
This is what am getting right now:
my code
<div id="comments">
<h2 class="comment_count">
<%= pluralize(#shipment.comments.count, "Bid") %>
</h2>
<% #comments.each do |comment| %>
<div class="comment">
<li class="round-image-50"><%= image_tag(current_user.avatar.url(:thumb)) %></li><h6 class="username"><strong><font style="text-transform: capitalize;"><%= comment.user.full_name %></strong></font></h6>
<div class="shipment">
<p class="content">
<div class="text-center left col-md-4">
<%= comment.content %>
</div>
<% if #shipment.user == current_user %>
<% #shipment.comments.each do |comment| %>
<%= link_to 'Send Message', new_conversation_path(recipient_id: comment.user_id), class: "btn btn-default btn-xs" %>
<% end %>
<% end %>
</p>
</div>
</div>
<% end %>
<%= render "comments/form" %>
</div>
Change this:
<% if #shipment.user == current_user %>
<% #shipment.comments.each do |comment| %>
<%= link_to 'Send Message', new_conversation_path(recipient_id: comment.user_id), class: "btn btn-default btn-xs" %>
<% end %>
<% end %>
to
<% if #shipment.user == current_user %>
<%= link_to 'Send Message', new_conversation_path(recipient_id: comment.user_id), class: "btn btn-default btn-xs" %>
<% end %>
PS: I assumed that #comments is same as #shipment.comments from your shown code
I am following the Michael Hartl ROR tutorial and I am trying to paginate the users followers/following pages and I am getting an error saying undefined method `any?' why is that?
view/users/show_follow.html.erb
<div class="row">
<aside class="span4">
<section>
<%= gravatar_for #user %>
<h1><%= #user.email %></h1>
<span><%= link_to "view my profile", #user %></span>
</section>
<section>
<%= render 'shared/stats' %>
<% if #user.any? %>
<div class="user_avatars">
<% #users.each do |user| %>
<%= link_to gravatar_for(user, size: 30), user %>
<% end %>
</div>
<% end %>
</section>
</aside>
<div class="span8">
<h3><%= #title %></h3>
<% if #users.any? %>
<ul class="users">
<%= render #users %>
</ul>
<%= will_paginate %>
<% end %>
</div>
</div>
any? works only on Enumerable's. See here: http://ruby-doc.org/core-2.0.0/Enumerable.html#method-i-any-3F
I suspect <% if #user.any? %> should be <% if #users.any? %> instead.
I've been able to jump most hurtles as I move through the Hartl Rails tutorial, but I can't figure out what I'm doing wrong around 10.4. I can get everything to render correctly using this /static_pages/home.html.erb
<% if signed_in? %>
<div class="row">
<aside class="span4">
<section>
<%= render 'shared/user_info' %>
</section>
<section>
<%= render 'shared/micropost_form' %>
</section>
</aside>
</div>
<% else %>
<div class="center hero-unit">
<h1>Welcome to The Gentle Introduction Resource</h1>
<p>
This is the home page for the
The Gentle Introduction Resource
web app.
</p>
<%= link_to "Sign up now!", signup_path, class: "btn btn-large btn-primary" %>
</div>
<br/>
<%= link_to image_tag("rails.png", alt: "Rails"), 'http://rubyonrails.org/' %>
But then when I include this code:
<div class="span8">
<h3>Micropost Feed</h3>
<%= render 'shared/feed' %>
</div>
it breaks.
Full home.html.erb:
<% if signed_in? %>
<div class="row">
<aside class="span4">
<section>
<%= render 'shared/user_info' %>
</section>
<section>
<%= render 'shared/micropost_form' %>
</section>
</aside>
<div class="span8">
<h3>Micropost Feed</h3>
<%= render 'shared/feed' %>
</div>
</div>
<% else %>
<div class="center hero-unit">
<h1>Welcome to The Gentle Introduction Resource</h1>
<p>
This is the home page for the
The Gentle Introduction Resource
web app.
</p>
<%= link_to "Sign up now!", signup_path, class: "btn btn-large btn-primary" %>
</div>
<br/>
<%= link_to image_tag("rails.png", alt: "Rails"), 'http://rubyonrails.org/' %>
<% end %>
Here is my _feed.html.erb:
<% If #feed_items.any? %>
<ol class="microposts">
<%= render partial: 'shared/feed_item', collection: #feed_items %>
</ol>
<%= will_paginate #feed_items %>
<% end %>
And here is my _feed_item.html.erb
<li id="<%= feed_item.id %>">
<%= link_to gravatar_for(feed_item.user), feed_item.user %>
<span class="user">
<%= link_to feed_item.user.name, feed_item.user %>
</span>
<span class="content"><%= feed_item.content %></span>
<span class="timestamp">
Posted <%= time_ago_in_words(feed_item.created_at) %> ago.
</span>
<% if current_user?(feed_item.user) %>
<%= link_to "delete", feed_item, method: delete,
data: { confirm: "You sure?" },
title: feed_item.content %>
<% end %>
</li>
Sorry in advance for my markup, this is my first stack overflow question.
Oh and here is the error I'm getting when I attempt to load my local site:
SyntaxError in Static_pages#home
Showing /rails_projects/sample_appOct20_2013/app/views/shared/_feed.html.erb where line #7 raised:
/rails_projects/sample_appOct20_2013/app/views/shared/_feed.html.erb:7: syntax error, unexpected keyword_ensure, expecting $end
Extracted source (around line #7):
4: </ol>
5: <%= will_paginate #feed_items %>
6: <% end %>
Trace of template inclusion: app/views/shared/_feed.html.erb, app/views/static_pages/home.html.erb
I think its the capital If
should be:
<% if #feed_items.any? %>
<ol class="microposts">
<%= render partial: 'shared/feed_item', collection: #feed_items %>
</ol>
<%= will_paginate #feed_items %>
<% end %>
Since this is the case, it thinks that the <% end %> tag is not needed. It really is needed but 'If' (capitalized) is not the same as 'if'(lowercase).