Question

我有以下代码来测试模板渲染：

import os

from tornado.template import Loader

class A:
    def __init__(self):
        self.loader = Loader(os.path.join(os.path.dirname(__file__), "templates"))

    def simple_template(self):
        tmpl = self.loader.load("utf8.html")
        result = tmpl.generate()
        print result

    def complex_template(self, message):
        tmpl = self.loader.load("message.html")
        result = tmpl.generate(message = message)
        print result

a = A()
a.simple_template()
a.complex_template({"id" : 'asdsadfasd', "from": 'sdfsafd', "body": 'sdfdasfd'})

这些是我的模板：

模板/ utf8.html

Héllo

模板/ message.html

<div class="message" id="m{{ message["id"] }}"><b>{{ message["from"] }}: </b>{% module linkify(message["body"]) %}</div>

这是输出：

Héllo

ERROR:root:message.html code:
 1  def _execute():  # message.html:0
 2      _buffer = []  # message.html:0
 3      _append = _buffer.append  # message.html:0
 4      _append('<div class="message" id="m')  # message.html:1
 5      _tmp = message["id"]  # message.html:1
 6      if isinstance(_tmp, _string_types): _tmp = _utf8(_tmp)  # message.html:1
 7      else: _tmp = _utf8(str(_tmp))  # message.html:1
 8      _tmp = _utf8(xhtml_escape(_tmp))  # message.html:1
 9      _append(_tmp)  # message.html:1
10      _append('"><b>')  # message.html:1
11      _tmp = message["from"]  # message.html:1
12      if isinstance(_tmp, _string_types): _tmp = _utf8(_tmp)  # message.html:1
13      else: _tmp = _utf8(str(_tmp))  # message.html:1
14      _tmp = _utf8(xhtml_escape(_tmp))  # message.html:1
15      _append(_tmp)  # message.html:1
16      _append(': </b>')  # message.html:1
17      _tmp = _modules.linkify(message["body"])  # message.html:1
18      if isinstance(_tmp, _string_types): _tmp = _utf8(_tmp)  # message.html:1
19      else: _tmp = _utf8(str(_tmp))  # message.html:1
20      _append(_tmp)  # message.html:1
21      _append('</div>\n')  # message.html:2
22      return _utf8('').join(_buffer)  # message.html:0
Traceback (most recent call last):
  File "template_test2.py", line 21, in <module>
    a.complex_template({"id" : 'asdsadfasd', "from": 'sdfsafd', "body": 'sdfdasfd'})
  File "template_test2.py", line 16, in complex_template
    result = tmpl.generate(message = message)
  File "/home/gonvaled/.virtualenvs/python2.7.2-wavilon1/lib/python2.7/site-packages/tornado/template.py", line 254, in generate
    return execute()
  File "message_html.generated.py", line 17, in _execute
NameError: global name '_modules' is not defined

正如您所看到的，简单模板按预期呈现，但复杂模板失败。如何在不使用定义应用程序的情况下呈现复杂模板？我只想在这种情况下使用龙卷风的模板渲染工具。

Answer 1

我认为你应该使用： self.render_string("message.html", message=message)

龙卷风：仅使用template.Loader的复杂模板渲染

1 个答案: