xpath - How to fill timepicker field with capybara -

i new capybara , have problems text field, capybara can not find field.

i need create automatic tests , 1 of them has fill in fields changes time(id , name changes, this: id="patterndailystart_146d7547140" , number different).

html part looks this:

    <div class="timepicker">     <input value="" id="patterndailystart_146d7547140"          name="patterndailystart_146d7547140"          class="timepicker-input patterndailystart hasdatepicker"          type="text">     <img class="ui-datepicker-trigger"               src="/mpromoter/assets/4716a6a0a357181/app/components/timefield/clock.png"          alt="..."          title="...">     </div> 

this time picking field. , problem capybara can not find field.. try find filling.

when try find xpath, found, when want fill in time($starttime=17:00) says element not found or not exist.

these xpaths found:

page.has_xpath?('//tbody/tr/div/input[contains(., "patterndailystart")]') page.has_xpath?(:xpath, "//*[@class='timepicker-input patterndailystart hasdatepicker']") 

i tried fill in this:

and(/^fill fields$/) field = find("//*[@class='timepicker-input patterndailystart hasdatepicker'") field.set $starttime end 

and this:

fill_in('timepicker-input.patterndailystart.hasdatepicker', :with => $starttime) 

and this:

within(:xpath,'//tbody/tr/div/input[contains(., "patterndailystart")]'){ fill_in("#patterndailystart", with: $starttime)} 

and many other ways still nothing fills in fields..

so asking help. have do, suggestions?

thank you... :)

i think easiest locate inputs 'patterndailystart' class:

find(:css, '.patterndailystart').set($starttime)