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

jamesdylangoldstein · March 13, 2020, 10:30pm

So this is the bassic html w/ eRB:

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

Ball_Donald_A_Jr_Lib · March 14, 2020, 12:10am

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