grails - Set select value in gsp -

controller:

     def abbrev = [:]         abbrev.put(1,"i")         abbrev.put(2,"ii")         abbrev.put(3,"iii")         abbrev.put(4,"iv")         list<expando> abbreviations = abbrev.collect{           abbreviation -> expando.newinstance(key:abbreviation.key,value:abbreviation.value)         }              def row = [:]             def programrows = [ ]      somelist.each {               item -> row = [key1:value1, key2,value2 ]                 programrows << row             }  [abbreviations:abbreviations, programrows:programrows ] 

i iterate through programrows map ( programrow ). map value1 equivalent key in abbreviations ( list of expandos ) want set select value based on this: commented option value can understand value want assign.

view gsp:

    <g:each in="${programrows}" var="programrow">    <g:select name="abbrevs" from="${abbreviations}" optionvalue="//programrow.get('key1')//" optionkey="key" class="vfucourseabbreviations"/> 

how can this??

i'd put code so:

def someaction(){   def abbreviations = [ 'i', 'ii', 'iii', 'iv' ]   def programrows = somelist.collect {     [ key1:value1, key2:value2 ] // "value1" have pass index in "abbreviations"   }   [ abbreviations:abbreviations, programrows:programrows ] } 

the gsp:

<g:each in="${programrows}" var="programrow">        <select name="abbrevs">     <g:each in="${abbreviations}" var="abbr" status="i">       <option value="${i}" ${i == programrow.key1 ? 'selected' : ''}>${abbr}</option>     </g:each>   </select>      </g:each>