Dont care that, article is array of instance of 'articel',so article[0] is
the firest instance of article.(what bad i mistake,so sorry).
---
tojson also cant work with me, the same error with you getting. so, give up
this solution.
---
Now i found that the code below really can't work:
alert("<p>mysomesting</p>"); or alert("<p>mysomesting</p>");
this code work fine:
alert("mysomestring");
I think this may be the real reason for the problem.
2014-03-25 11:31 GMT+08:00 Kurtis Rader <[email protected]>:
> Your original problem statement was
>
> <script type="text/javascript">
> alert({{article.title}});
> </script>
>
>
> You now say that "article" is a dictionary like object with a member named
> "0" that has a "title" attribute or member. Those things are not equivalent.
>
> You cannot use "{{ article.title }}" as a synonym for "{{ article[0].title
> }}" unless your "article" object has overrides for the normal
> double-underscore methods (which is very unlikely).
>
>
> On Mon, Mar 24, 2014 at 7:59 PM, Zarey Chang <[email protected]> wrote:
>
>> @Kurtis Rader
>>
>> i'm sure the non-buildin type 'article' instance have 'title' attribute.The
>> 'article' is dict like, so I always use article[0].title instead.
>> after format 'article[0]', information shown as below:
>> ---
>> <!--Article(key=Key('Article', 5905064635924480),
>> title=u'mytitlestring tag', type=u'Translate')-->
>> ---(use ' instead)
>> <!--Article(key=Key('Article', 5905064635924480), title=u'mysomestring',
>> type=u'Translate')-->
>> ---
>>
>> if i'm sure article[0] contains title property, as:article[0].title print
>> out 'mysomestring'.
>> For the non-buildin type, how to alert article[0].title in javascript?
>>
>>
>> @Markus Unterwaditzer
>>
>> Did you say that I must use json to dumping the non-buildin type for
>> jinja2?
>> if it is, I must redirect my focus to json way.
>> ( but i think jinja2 could process alert("{{article[0].title}}"); in
>> some other way. )
>>
>>
>>
>>
>>
>> 2014-03-24 23:25 GMT+08:00 Kurtis Rader <[email protected]>:
>>
>>> The expansion of {{article.title}} is done by the jinja2 template engine
>>> on the server before the javascript is executed on the client (i.e., the
>>> browser). So the fact you're using javascript to display the value is not
>>> relevant. Either GAE is affecting jinja2 behavior or your "article" object
>>> doesn't have a "title" attribute or member (if it's a dict like object) or
>>> the value isn't what you expect. Try embedding the following in your
>>> document:
>>>
>>> <!--
>>> {{'%r'|format(article)}}
>>> -->
>>>
>>>
>>> That will embed a python representation of the "article" object as a
>>> comment in the document. Then use your brower "view page source" command to
>>> see what was embedded. For example, I did this for one of my objects and
>>> got this:
>>>
>>> <!--
>>> {'last_changed_rfc3339': '2014-03-24T15:04:01Z',
>>> 'last_changed_rfc822': 'Mon, 24 Mar 2014 15:04:01 GMT',
>>> ...
>>> -->
>>>
>>>
>>> Note that the ' is a single-quote, which if you make the
>>> substitution yields the more familiar:
>>>
>>> {'last_changed_rfc3339': '2014-03-24T15:04:01Z',
>>> 'last_changed_rfc822': 'Mon, 24 Mar 2014 15:04:01 GMT',
>>>
>>>
>>>
>>>
>>>
>>> On Mon, Mar 24, 2014 at 7:31 AM, alex <[email protected]> wrote:
>>>
>>>> Hi guys,
>>>>
>>>> What i want like below:
>>>> ---
>>>> <script type="text/javascript">
>>>> alert({{article.title}});
>>>> </script>
>>>> ---
>>>> this code block was writen in some.html using jinja2 template, working
>>>> by GAE.
>>>> it alert nothing, empty content on dialog.
>>>> if I take the code below instead,it work fine:(but need pass extra
>>>> variable article.title as "title")
>>>> ---
>>>> <script type="text/javascript">
>>>> alert({{title}});
>>>> </script>
>>>> ---
>>>>
>>>> so 1. ,jinja/jinja2 could only pass int, bool, and so on(these regular
>>>> type), isn't it?
>>>> 2. if I want pass the instance "article", do I must dump it by json?
>>>> 3. Is any other way for code like article.title that passing to
>>>> javascript?
>>>> (some times i think this problem may be less relate with javascript.)
>>>>
>>>> thx,
>>>>
>>>> --
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>>>>
>>>
>>>
>>>
>>> --
>>> Kurtis Rader
>>> Caretaker of the exceptional canines Junior and Hank
>>>
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>>
>>
>>
>> --
>> Zarey C.Y. Chang
>>
>> --
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>>
>
>
>
> --
> Kurtis Rader
> Caretaker of the exceptional canines Junior and Hank
>
> --
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--
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