grails - print each row's value with column name from GroovyRowResult - sql

Question

I want to let a user fire sql query and then see the result in grails view page.
My QueryController.groovy is
def query(){
def headers = null; //["id","name"]
Sql sql = new Sql(dataSource)
def rowResults = sql.rows(params.query) //GroovyRowResult
rowResults.eachWithIndex { row, index->
if (headers == null) {
headers = row.keySet()
}
}
[headers : headers, resultList: rowResults, total : rowResults.size() ]
}
In grails view page (query.gsp),
<table class="table table-striped">
<thead>
<tr>
<g:each in="${headers}" var="header">
<g:sortableColumn property="header" title="${header}" />
<th></th>
</g:each>
</tr>
</thead>
<tbody>
<g:each in="${resultList}" var="row">
<tr>
<g:each status="counter" in="${row}" var="val">
<td>${val}</td>
</g:each>
</tr>
</g:each>
</tbody>
</table>
The <td>${val}</td> part in view is not working as expected, because it gives result as id=1 instead of 1. I want only value to be displayed there.
Might be a smaller issue though, need to fix it.
Thanks.

Answer 1

Try accessing values by accessing the value on each map:
<table class="table table-striped" border="1">
<thead>
<tr>
<g:each in="${headers}" var="header">
<g:sortableColumn property="header" title="${header}" />
</g:each>
</tr>
</thead>
<tbody>
<g:each in="${resultList}" var="row">
<tr>
<g:each status="counter" in="${row}" var="val">
<td>${val.value}</td>
</g:each>
</tr>
</g:each>
</tbody>
</table>
/
Also in your query action you can get the header directly from the map:
def query(){
def headers = null; //["id","name"]
Sql sql = new Sql(dataSource)
def rowResults = sql.rows("select * from Message;") //GroovyRowResult
// rowResults is a list, you can access it by its index
headers = rowResults[0].keySet()
FYI, what you are giving your users is very powerful and they can run any sort of query against you database even to drop your tables.

Answer 2

Well, I got the following code working as val is KVP.
<tr>
<g:each status="counter" in="${row}" var="val">
<td>${val.value}</td>
</g:each>
</tr>