If statements using OR and Matrix fields

Question

I have a Matrix field that includes three options. The aim is to output a <select> element if one or more of these options is selected. (These fields are Pixel & Tonic Field Pack checkboxes.)

This syntax used to work:

{if "{gold}" OR "{silver}" OR "{wood}"}
    <input type="hidden" name="on0" value="Frame Type">
    <select name="os0">
        {if gold}<option value="Gold">Gold Frame</option>{/if}
        {if silver}<option value="Silver">Silver Frame</option>{/if}
        {if wood}<option value="Rosewood">Rosewood Frame</option>{/if}
    </select>
{/if}

Now that I've upgraded to EE 2.8.1 (from a much earlier version—E 2.2) the code isn't working and I'm getting the following error:

A PHP Error was encountered
Severity: User Warning
Message: Invalid EE Conditional Variable: {if ""y"}
Filename: libraries/Functions.php
Line Number: 2640

I've tried all sorts of syntax combinations, such as removing the quotes and braces etc. The only solution I could find was pretty inefficient:

{if gold}
    <input type="hidden" name="on0" value="Frame Type">
    <select name="os0">
        {if gold}<option value="Gold">Gold Frame</option>{/if}
        {if silver}<option value="Silver">Silver Frame</option>{/if}
        {if wood}<option value="Rosewood">Rosewood Frame</option>{/if}
    </select>
{if:elseif silver}
    <input type="hidden" name="on0" value="Frame Type">
    <select name="os0">
        {if gold}<option value="Gold">Gold Frame</option>{/if}
        {if silver}<option value="Silver">Silver Frame</option>{/if}
        {if wood}<option value="Rosewood">Rosewood Frame</option>{/if}
    </select>
{if:elseif wood}
    <input type="hidden" name="on0" value="Frame Type">
    <select name="os0">
        {if gold}<option value="Gold">Gold Frame</option>{/if}
        {if silver}<option value="Silver">Silver Frame</option>{/if}
        {if wood}<option value="Rosewood">Rosewood Frame</option>{/if}
    </select>
{if:else}&nbsp;
{/if}

At least it works, but it's pretty darned ugly and inefficient. I had to put that ugly if:else at the end, too, as each of the options is optional, so to speak.

Can anyone suggest a better way to construct this?

Answer 1

Not knowing what you are testing i'm assuming you are testing if the field has a value in it. So I would do this.

{if "{gold}" != "" || "{silver}" != "" || "{wood}" != ""}
      <input type="hidden" name="on0" value="Frame Type">
      <select name="os0">
          {if gold}<option value="Gold">Gold Frame</option>{/if}
          {if silver}<option value="Silver">Silver Frame</option>{/if}
          {if wood}<option value="Rosewood">Rosewood Frame</option>{/if}
       </select>
{/if}