Rails - Mar 2007 - Some products have 0, 1, 2 or 3 images. How to display- basic eRB question:

So this is the bassic html w/ eRB:

<img class="list-image" src="<%= product.pic1_url
%>"/>

But what if the database has a pic2_url and a pic3_url (some will have
1 picture, some 2, and some 3)?

Obviously it shouldn''t display pic2_url and pic3_url if they
aren''t
there.

And what about formatting: I''ve got a 400x400 box set for pictures --
if I have one picture, I''ll have it take up the whole table (supposing
all pictures are at least 400x400); if I have two, I''ll have it put
the pictures side by side (maybe breaking the table); if I have three,
I''ll split the table again.  (and no pic_url at all leaves me with a
400px box that I might as well remove.)  How do I solve this
problem?

Of course, I could just point to three "Image unavailable" images.

Thanks,
JD


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> So this is the bassic html w/ eRB:
> 
> <img class="list-image" src="<%= product.pic1_url
%>"/>
> 
> But what if the database has a pic2_url and a pic3_url (some will have
> 1 picture, some 2, and some 3)?
<% if product.pic2_url %>
  <img class="list-image" src="<%= product.pic2_url
%>"/>
<% end %>

perhaps better to model the product pictures as a list instead of
hard-coding in the assumption that there will be at most 3 though. then
your erb code may become:

<% product.pic_urls.each do |url| %>
  <img class="list-image" src="<%=url%>"/>
<% end %>

- donald

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