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From "Pu Zhongqiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FREEMARKER-67) Doesn't support org.bson.Document's correct order of keys.
Date Fri, 11 Aug 2017 02:01:00 GMT

    [ https://issues.apache.org/jira/browse/FREEMARKER-67?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16122690#comment-16122690
] 

Pu Zhongqiang commented on FREEMARKER-67:
-----------------------------------------

Now I added a property of "incompatible_improvements" into my freemarker configuation file,
so that FreemarkerServlet and spring's FreeMarkerViewResolver can both read it.
{code:properties}
incompatible_improvements = 2.3.26
{code}
It works fine now, Document's key are rendered in correct order.

Thanks for your reply.

> Doesn't support org.bson.Document's correct order of keys.
> ----------------------------------------------------------
>
>                 Key: FREEMARKER-67
>                 URL: https://issues.apache.org/jira/browse/FREEMARKER-67
>             Project: Apache Freemarker
>          Issue Type: Bug
>          Components: engine
>    Affects Versions: 2.3.23, 2.3.24-incubating, 2.3.25-incubating, 2.3.26-incubating
>         Environment: Windows7, jdk1.8.0_131 64bit, Tomcat 8.0.45, SpringMVC 4.3.10.RELEASE,
mongo-java-driver 3.4.2
>            Reporter: Pu Zhongqiang
>            Priority: Minor
>              Labels: features
>
> In mongodb's Java Driver 3.x, org.bson.Document is a representation of a bson document
as a Map. Although org.bson.Document is not a subclass of LinkedHashMap, it really DOES maintain
a meaningful order for its keys.
> It works good if I use LinkedHashMap to load data.
> {code:java}
> LinkedHashMap<String,Object> accepted_sorts = new LinkedHashMap<>();
> accepted_sorts.put("-favorite_time", "Hello");
> accepted_sorts.put("-publish_time", "Welcome");
> model.put("accepted_sorts", accepted_sorts);
> {code}
> {code:html}
> <#list accepted_sorts?keys as value>
> 	${value?string}
> </#list>
> <br>
> <#list accepted_sorts as key,value>
> 	${key?string},${value?string}
> </#list>
> {code}
> it rendered as: 
> {code:html}
> -favorite_time -publish_time 
> -favorite_time,Hello -publish_time,Welcome 
> {code}
> But Freemarker doesn't support  org.bson.Document's correct key order. You can see my
test below:
> {code:java}
> Document accepted_sorts = new Document();
> accepted_sorts.put("-favorite_time", "Hello");
> accepted_sorts.put("-publish_time", "Welcome");
> model.put("accepted_sorts", accepted_sorts);
> {code}
> {code:html}
> <#list accepted_sorts?keys as value>
> 	${value?string}
> </#list>
> <br>
> <#list accepted_sorts as key,value>
> 	${key?string},${value?string}
> </#list>
> {code}
> it rendered as wrong order: 
> {code:html}
> -publish_time -favorite_time 
> -publish_time,Welcome -favorite_time,Hello 
> {code}
> So, in the end, I wish freemarker can add support for org.bson.Document's correct order
of keys.



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