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语言包格式错误引起组件崩溃

2015-07-20 13:18 375 查看
最近在修正一些运行时错误中,发现了类似的错误模式,例如

打开SYSADMIN后,教师面板无法进入,检查lms/log发现

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File
"/tmp/mako_lms/instructor/instructor_dashboard_2/course_info.html.py"
, line 141,
in
render_body
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link_end=
'</a>'
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KeyError: u
' link_start '
用户注册后不能发送邮件,也不能跳转到注册成功页面,而邮件却已正确配置。检查lms/log发现

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Jul 15 12:33:10 i-hjpuo2yh [service_variant=lms][django.request][env:sandbox] ERROR [i-hjpuo2yh19843] [base.py:213] - Internal Server Error: /create_account
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Traceback (most recent call last):
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File"/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 109, in get_response
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response = callback(request, *callback_args, **callback_kwargs)
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File"/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 77, in wrapped_view
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return view_func(*args, **kwargs)
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File"/edx/app/edxapp/edx-platform/common/djangoapps/student/views.py", line 1615, in create_account
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create_account_with_params(request, post_override or request.POST)
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File"/edx/app/edxapp/edx-platform/common/djangoapps/student/views.py", line 1534, in create_account_with_params
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message = render_to_string('emails/activation_email.txt', context)
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File"/edx/app/edxapp/edx-platform/common/djangoapps/edxmako/shortcuts.py", line 134, in render_to_string
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return template.render_unicode(**context_dictionary)
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File"/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/mako/template.py", line 452, in render_unicode
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as_unicode=True)
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File"/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/mako/runtime.py", line 807, in _render
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**_kwargs_for_callable(callable_, data))
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File"/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/mako/runtime.py", line 839, in _render_context
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_exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
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File"/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/mako/runtime.py", line 865, in _exec_template
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callable_(context, *args, **kwargs)
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File"/tmp/mako_lms/emails/activation_email.txt.py", line 51, in render_body
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platform_name=settings.PLATFORM_NAME
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KeyError: u' platform_name '
共同的错误提示KeyError。在和社区开发者进行探讨后,认为是模板的问题,于是@wwj718修改了模板文件使组件可运行并提交commit到github。而edX社区的开发者提示这是语言包问题。

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This looks to me like a translator added spaces into the format placeholder, turning {link_start} into { link_start }. The fix is to remove the spaces in the translation. Removing the placeholder names as you have done will make it impossible to translate this string in the future.
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Can you double-check your translation files to see if there are spaces in the translated string?
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:-1: on merging this change.
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PS, the command i18n_tool validate will find errors with all translation files you have, so you can correct them if you wish. On master, all translation files pass this check.
检查mako.po文件发现,的确是翻译者在变量中加入了错误的空格导致:

{link_start} -> { link_start }
{platform_name} -> { platform_name }

凡是错误加入空格的地方,涉及的组件都会出现KeyError错误。

一劳永逸的做法,我们已在transifex修正了目前发现的几十处类似语言包错误并确认审核。重新下载编译语言包即可修正此类错误。



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