Ruby display array values

Question

I am not a ruby developer. This is the first time I am looking into the code. I want to build a dynamic table for which I have managed below code. However, I am not able to display all the contents of the array except for the first and the last values. How do I display all the values?

Thanks for your help!!

<style>table, td, th{border:1px solid white;}td{padding:5px;}th{background-color:#E0E6EB;color:black;}</style>
<div>
<table border=2>
<tr>
  <th width="250px"><B><p style="text-align: center">Name</p></B></th>
<th width="120px"><B><p style="text-align: center">Number</p></B></th>
<th width="60px"><B><p style="text-align: center">Status</p></B></th>
<th width="155px"><B><p style="text-align: center">Product Type</p></B></th>
<th width="60px"><B><p style="text-align: center">Source</p></B></th>
</tr>
  <% tempTickets = @subject.PersonAccounts.sorted_by(field("title").in_descending_order) %>  
  <% cnt = tempTickets.length %>
  <% tempTickets.each do |ticket| %>
<div>
<tr>
  <td><%= ticket['perfinaccnt-accountname'].first %></td>
<td><%= ticket['perfinaccnt-accountnumber'].first %></td>
<td><%= ticket['perfinaccnt-accountstatus'].first %></td>
<td><%= ticket['perfinaccnt-producttype'].first %></td>
<td><%= ticket['perfinaccnt-accountsrcsystem'].first %></td>
</tr>
</div>
<div>
<tr>
  <td><%= ticket['perfinaccnt-accountname'].last %></td>
<td><%= ticket['perfinaccnt-accountnumber'].last %></td>
<td><%= ticket['perfinaccnt-accountstatus'].last %></td>
<td><%= ticket['perfinaccnt-producttype'].last %></td>
<td><%= ticket['perfinaccnt-accountsrcsystem'].last %></td>
</tr>
</div>

  <% end %>
</table>
</div>

I am not sure at all about the attributes. Since, I am able to display first and last elements of the array. how do I loop through it? — Waseem Ahmed
– Waseem Ahmed, Commented Apr 21, 2015 at 22:13
You're already looping through tempTickets using each method. — bodyfarmer
– bodyfarmer, Commented Apr 21, 2015 at 22:25
Is this what you looking for? stackoverflow.com/questions/310634/… — bodyfarmer
– bodyfarmer, Commented Apr 21, 2015 at 22:27
Based on the loop count, can I change the index value in the below code? ticket['perfinaccnt-accountname'].<index> — Waseem Ahmed
– Waseem Ahmed, Commented Apr 22, 2015 at 8:39

max · Accepted Answer · 2015-04-21 22:23:09Z

1

You could do it with three nested loops:

<%= tempTickets.each do |ticket|
    [
      'perfinaccnt-accountname',
      'perfinaccnt-accountnumber',
      'perfinaccnt-accountstatus',
      'perfinaccnt-producttype',
      'perfinaccnt-accountsrcsystem'
    ].each do |f|
        ticket[f].each do |tf|
            puts "<td>tf</td>";
        end if ticket[f]
    end 
end %>

answered Apr 21, 2015 at 22:23

max

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6 Comments

Waseem Ahmed Over a year ago

Thanks for the code - However, the code is printing below text outside the table. "[#<Entity:0x69b60a95 @entity=#<Java::ComVivisimoGelatoEntityResultset::SortedEntity:0x1abe9cdf>, @resolver=#<InstrumentationProxy:0x17e29ce0 @jmx_wrapper=#<JMXWrapper:0xeccd5d5d @mbean_store=#<MBeanStore:0x6b9e402e @mbean_store={}>, "

max Over a year ago

I can't really help you there without knowing what the data is. The text you are seeing is most likely due to one of the fields being a class thats not meant to be printed directly.

Waseem Ahmed Over a year ago

Then what could be the option to print a class?

Phobos Over a year ago

Check the object.class would do that.

Waseem Ahmed Over a year ago

In my original code, ticket['perfinaccnt-accountname'].class is showing me the value as Array, and printing ticket['perfinaccnt-accountname'] gave me the list of values with comma separation enclosed within []

|

Phobos · Accepted Answer · 2015-04-21 23:19:17Z

I'm not sure about the data structure here but you could check it by doing an #inspect to tempTickets and all the subsequent objects. From the looks of it "ticket['perfinaccnt-accountname']" is actually an array and as such you can just loop through it. Not the fastest way to do it but it should work to just do a nested loop.

<style>table, td, th{border:1px solid white;}td{padding:5px;}th{background-color:#E0E6EB;color:black;}</style>
<div>
<table border=2>
<tr>
  <th width="250px"><B><p style="text-align: center">Name</p></B></th>
<th width="120px"><B><p style="text-align: center">Number</p></B></th>
<th width="60px"><B><p style="text-align: center">Status</p></B></th>
<th width="155px"><B><p style="text-align: center">Product Type</p></B></th>
<th width="60px"><B><p style="text-align: center">Source</p></B></th>
</tr>
  <% tempTickets = @subject.PersonAccounts.sorted_by(field("title").in_descending_order) %>
  <% cnt = tempTickets.length %>
  <% tempTickets.each do |ticket| %>
  <div><tr>
    <%  ticket.each do |k,v|
          v.each do |col| %>
            <td><%= col %></td>
          <% end %>
        <% end %>
  </tr></div>
  <% end %>
</table>
</div>

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