ruby - conditional formatting in rails partials -

i rendering rails partial , want alternate background color when renders partial. know not super clear here example of want do:

row 1 grey background row 2 yellow background row 3 grey background row 4 yellow background

sorry stackoverflow seams prevent background colors being shown think makes idea clear

this view code using

<table>   <%= render :partial => 'row' :collection => @rows %> </table>

the _row.html.erb partial looks this

<tr bgcolor="#aaaaaa">   <td><%= row.name %></td> </tr>

the problem not know how change background color every other row. there way this?

you use cycle helper. this:

<tr class="<%= cycle("even", "odd") %>">   <td><%= row.name %></td> </tr>

or in case use bgcolor instead, although recomend using css classes.

you can cycle through more 2 values: cycle(‘first’, ‘second’, ‘third’, ‘and_more’).

there also: reset_cycle(‘cycle_name’) makes sure on each iteration, start again first value of cycle list.

check rails documentation more examples.

Ray access