Re: (no subject)

Friday, February 24, 2012, 4:34:33 PM, Nancy Wang wrote:

> Hi, Daniel,
>
> Thanks a lot for your advice! It works now, but the result not in
> sorted order, could it have sort order such as alphabetical order?

Use <#list keys?sort as key>

> ftl
> <tr>
> <#assign keys = user?keys>
> <#list keys as key>
> <#if key != "class" && !user[key]?is_method>
> <td>${key}</td>
> </#if>
> </#list>
> </tr>
> <tr>
> <#assign keys = user?keys>
> <#list keys as key>
> <#if key != "class" && !user[key]?is_method>
> <td>${user[key]}</td>
> </#if>
> </#list>
> </tr>
>
> output
> <tr>
> <td>lastName</td>
> <td>dob</td>
> <td>firstName</td>
> <td>dep</td>
> </tr>
> <tr>
> <td>Johnson</td>
> <td>19800920</td>
> <td>Byrant</td>
> <td>HR</td>
> </tr>
>
> Thanks and best regards,
> Nancy
>
>
> On Thu, Feb 23, 2012 at 4:41 PM, Daniel Dekany <[email protected]> wrote:
> Thursday, February 23, 2012, 8:38:24 PM, Nancy Wang wrote:
>
>> Hi, Daniel,
>>
>> Thank you very much for your quick response! I tried user?keys
>>
>>
>> <table>
>> <tr>
>> <#assign keys = user?keys>
>> <#list keys as key>
>> <#if key != "class" && key != "getClass" && key != "toString" &&
>> key != "equals" && key != "hashCode" && !key?starts_with("get") && !key?starts_with("set") >
>
> Actually... ?keys is not that bad for this if I think about it more.
> Because, you should just use <#if !user[key]?is_method> instead of
> trying to checking against all possible method names (you never know
> what methods will be there).
>
>> <td>${key}</td>
>> </#if>
>> </#list>
>> </tr>
>> </table>
>>
>> Now I couldn't get the key's value. I tried user[key],
>> user.get(key), none of them work. You advice is highly appreciated!
>
> But user[key] should work. What's the error message?
>
>> Thanks and best regards,
>> Nancy
>>
>> ---------- Forwarded message ----------
>> From: Daniel Dekany <[email protected]>
>> Date: Thu, Feb 23, 2012 at 1:26 AM
>> Subject: Re: [Freemarker-devel] (no subject)
>> To: FreeMarker-devel <[email protected]>
>>
>>
>> Unfortunately you can't do that out-of-the-box. Some may say that you
>> should use user?keys, but that will return not only the property names
>> but the method names too. But you could write a TemplatMethodModelEx
>> (that's like a #function only it's implemented in Java) that tries to get
>> the non-wrapped Java object with
>> ((AdapterTemplateModel) arg).getAdaptedObject(Object.class)
>> then gets the property names with the java.beans API-s, builds a
>> freemarker.template.SimpleSequence based on what it sees, and returns
>> it. So you create a such TemplatMethodModelEx, let's call it
>> com.example.GetPropertyNamesMethod, and then put it into an #import-ed
>> ftl where you have
>> <#assign getPropertyNames =
>> "com.example.GetPropertyNamesMethod"?new()>.
>>
>> --
>> Best regards,
>>  Daniel Dekany
>>
>>
>> Wednesday, February 22, 2012, 10:53:40 PM, Nancy Wang wrote:
>>
>>> Hi, all,
>>>
>>> I have a ftl file, would like to know if there is a generic way to
>>> show all field values of a user and all field names (suppose  I
>>> don't know what fields are there in User bean)
>>>
>>> ftl file
>>> <table>
>>> <tr>
>>> <td>${user.firstName}</td>
>>> <td>${user.lastName}</td>
>>> <td>${user.dob}</td>
>>> <td>${user.dep}</td>
>>> </tr>
>>> </table>
>>>
>>>
>>> java file
>>>         Map root = new HashMap();
>>>         User user = new User();
>>>         user.setFirstName("Byrant");
>>>         user.setLastName("Johnson");
>>>         user.setDob("19800920");
>>>         user.setDep("HR");
>>>
>>>         root.put("user", user);
>>>
>>> User bean
>>>  private String firstName;
>>>  private String lastName;
>>>  private String dob;
>>>  private String dep;
>>>  public String getFirstName()
>>>
>>> .....................

-- 
Best regards,
 Daniel Dekany


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