A small correction for Thymeleaf table:
<table>
<tr>
<th>HOST</th>
<th th:each="ts: ${timestamps}" th:text="${ts}"/>
</tr>
<tr th:each="hostData: ${valuesByHost}">
<td th:text="${hostData.key}"/>
<td th:each="ts: ${timestamps}" th:text="${hostData.value.get(ts)}"/>
</tr>
</table>
Of course I haven't tried running this for real, so there may be more issues
with the example (esp. considering that I've never used Thymeleaf in my life :)
), but it should give an idea.
Andrus
> On Aug 15, 2019, at 10:20 AM, Andrus Adamchik <[email protected]> wrote:
>
> Hi Keena,
>
> The short answer is - write some Java code to transform the Cayenne result
> into a data structure appropriate for Thymeleaf display.
>
> I don't know anything about Thymeleaf, but from quick googling, it might look
> like this:
>
> <table>
> <tr>
> <th>HOST</th>
> <th th:each="ts: ${timestamps}" th:text="${ts}"/>
> </tr>
> <tr th:each="hostData: ${valuesByHost}">
> <td th:each="ts: ${timestamps}" th:text="${hostData.get(ts)}"/>
> </tr>
> </table>
>
>
> Now you need to build "timestamps" and "valuesByHost" collections:
>
> List<UtilizationData> result = ...
> Set<LocalDateTime> timestampsUnsorted = new HashSet<>();
> Map<String, Map<LocalDateTime , Integer>> valuesByHost = new HashMap<>();
>
> // iterate over "result", populating "timestampsUnsorted" and "valuesByHost"
> from the object data
> ...
>
> List<LocalDateTime> timestamps = new ArrayList<>(timestampsUnsorted);
> Collections.sort(timestamps);
>
> HTH,
> Andrus
>
> P.S. BTW, can you show your Cayenne query. You are saying that you have
> ObjectSelect.columnQuery (which normally returns a List<Object> or
> List<Object[]>), while your result seems to be a List<UtilizationData>, which
> would be the case if you ran a regular (not column) ObjectSelect query.
>
>
>> On Aug 15, 2019, at 6:16 AM, Keena Grepo <[email protected]> wrote:
>>
>> Hi,
>>
>> I have this data returned by ObjectSelect.columnQuery :
>>
>> [{<ObjectId:UtilizationData, id=1>; committed; [hostname=>cc001;
>> percentagePerHour=>100; timestamp=>2019-07-09 00:00:00]},
>> {<ObjectId:UtilizationData, id=2>; committed; [hostname=>cc001;
>> percentagePerHour=>50; timestamp=>2019-07-09 01:00:00]},
>> {<ObjectId:UtilizationData, id=3>; committed; [hostname=>cc001;
>> percentagePerHour=>50; ; timestamp=>2019-07-09 02:00:00]},
>> {<ObjectId:UtilizationData, id=4>; committed; [hostname=>cc001;
>> percentagePerHour=>83; timestamp=>2019-07-09 03:00:00]}, ...]
>>
>> And I want to display the data in a table with "HOST", and timestamps as
>> table head. Then for the table data are the value of hostname and the
>> percentagePerHour for each respective timestamp (like the sample table
>> below). How can I achieve this?
>> -------------------------------------------------------------------------------------------------------------------------------
>> | HOST | 2019-07-09 00:00:00 | 2019-07-09 01:00:00 | 2019-07-09 02:00:00 |
>> 2019-07-09 03:00:00 |
>> -------------------------------------------------------------------------------------------------------------------------------
>> | cc001 | 100 | 50
>> | 50 | 83 |
>> -------------------------------------------------------------------------------------------------------------------------------
>>
>> By the way, I am using Springboot + Thymeleaf.
>>
>> Thanks.
>
