{{include}} and {{extend}} are template directives, not Python code. So,
even if the Python "if" statement evaluates to False, the {{include page}}
will still remain in the template and get executed (though once the actual
template code is included there, *that *code will not be executed). So,
instead, you have to do something like:
{{if 'include_page' in globals():}}
{{include 'page.html'}}
...
There is a simpler approach (though I'm not sure it is documented):
{{include page if 'page' in globals() else None}}
The advantage of this approach is that it does not actually include and
parse the "page" template when the condition is False, so it should be
faster in that case. The above also works with {{extend}}:
{{extend 'my_layout.html' if some_condition else None}}
Anthony
On Wednesday, June 24, 2015 at 2:43:21 AM UTC-4, Dmitry Ermolaev wrote:
>
> {{if 'page' in globals():}}
> {{include page}}
> {{else:}}
> {{=list}}
> {{pass}}
>
> erro -
>
> File "C:\web2py-m\gluon\template.py", line 684, in parse
> self.include(top, value)
> File "C:\web2py-m\gluon\template.py", line 462, in include
> text = self._get_file_text(filename)
> File "C:\web2py-m\gluon\template.py", line 439, in _get_file_text
> filename = eval(filename, context)
> File "<string>", line 1, in <module>
> NameError: name 'page' is not defined
>
>
> OR how include HTML file in controller?
>
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