Question

I am having trouble with my table in ruby. I am allowing a user to search for a class by a prefix or a title, so that sends them to a found_by_prefix or found_by_title page and I need to use the find_all_by_prefix(params[:prefix]). So when I did that I was getting an error so I researched it and found that using <%=@course.map(&:prefix).join(', ')%> would put all the courses found in my table but it only puts all the results in one row. I just want to know how to make 4 rows for the 4 results!

Controller:

def found_by_prefix
      @course = Course.find_all_by_prefix(params[:prefix])
 end

View:

    <table border=1>
<tr><th>id</th><th>prefix</th><th>number</th><th>title</th><th>section</th></tr>
<tr>
<td><%=@course.map(&:id)%></td>
<td><%=@course.map(&:prefix).join(', ')%></td>
<td><%=@course.map(&:number).join(', ')%></td>
<td><%=@course.map(&:title).join(', ')%></td>
<td><%=@course.map(&:section).join(', ')%></td>
</tr>
</table>

Answer 1

Just loop through the results, creating a row for each one:

<% @course.each do |course| %>
    <tr>
        <td><%= course.id %></td>
        <td><%= course.prefix %></td>
        <td><%= course.number %></td>
        <td><%= course.title %></td>
        <td><%= course.section %></td>
    </tr>
<% end %>

Also, you should probably name your instance variable @courses instead of @course because it represents a collection, not a single model object.