Ruby on Rails View Rendering DB Info On Page

Question

I am working on a project and currently working on one of the views which is a page of different categories. Everything is rendering correctly however it's also putting the db info in the page.

Here is the code of my view

<div class="categories">
    <div class="container blurbs">
        <div class="cards row">
            <%= @categories.each do |c| %>
            <div class="card col-xs-4" %>
                <%= image_tag c.image, :class => "cat" %>
                <h4 class="title"><%= c.title %></h4>
            </div>
            <% end %>
        </div>
    </div>
</div>

Here is a link to a screenshot of rendered page

Answer 1

Yes, fix is:

<div class="categories">
    <div class="container blurbs">
        <div class="cards row">
            <% @categories.each do |c| %>
            <div class="card col-xs-4" %>
                <%= image_tag c.image, :class => "cat" %>
                <h4 class="title"><%= c.title %></h4>
            </div>
            <% end %>
        </div>
    </div>
</div>

Look I removed = from this <%=.. In the below line :

<% @categories.each do |c| %>

#each method returns the collection after it completed its iterations. And due to this <%=, the return value of each which is @categories printed back. But if you use <%.. only, all above things will happen, but it wouldn't print back the object @categories.

Answer 2

when you use the tags <%= ... %> whatever is within the tags gets displayed on the page. In your current view you have

<%= @categories.each do |c| %>
  <div class="card col-xs-4" %>
    <%= image_tag c.image, :class => "cat" %>
    <h4 class="title"><%= c.title %></h4>
  </div> 
<% end %>

Which displays the entirety of whatever the loop returns which is where you're getting the display. Change the tags to be <% @categories.each do |c| %> and you'll be good to go.