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import sys
from zope.interface import implements
try:
from chameleon.zpt.template import PageTemplateFile
PageTemplateFile # prevent pyflakes complaining about a redefinition below
except ImportError: # pragma: no cover
exc_class, exc, tb = sys.exc_info()
# Chameleon doesn't work on non-CPython platforms
class PageTemplateFile(object):
def __init__(self, *arg, **kw):
raise ImportError, exc, tb
from repoze.bfg.interfaces import IChameleonTranslate
from repoze.bfg.interfaces import ITemplateRenderer
from repoze.bfg.decorator import reify
from repoze.bfg.path import caller_package
from repoze.bfg import renderers
from repoze.bfg.settings import get_settings
from repoze.bfg.threadlocal import get_current_registry
def renderer_factory(path):
return renderers.template_renderer_factory(path, ZPTTemplateRenderer)
class ZPTTemplateRenderer(object):
implements(ITemplateRenderer)
def __init__(self, path):
self.path = path
@reify # avoid looking up reload_templates before manager pushed
def template(self):
settings = get_settings()
debug = False
auto_reload = False
if settings:
# using .get here is a strategy to be kind to old *tests* rather
# than being kind to any existing production system
auto_reload = settings.get('reload_templates')
debug = settings.get('debug_templates')
reg = get_current_registry()
translate = None
if reg is not None:
translate = reg.queryUtility(IChameleonTranslate)
return PageTemplateFile(self.path,
auto_reload=auto_reload,
debug=debug,
translate=translate)
def implementation(self):
return self.template
def __call__(self, value, system):
try:
system.update(value)
except (TypeError, ValueError):
raise ValueError('renderer was passed non-dictionary as value')
result = self.template(**system)
return result
def get_renderer(path):
""" Return a callable object which can be used to render a
:term:`Chameleon` ZPT template using the template implied by the
``path`` argument. The ``path`` argument may be a
package-relative path, an absolute path, or a :term:`resource
specification`.
.. warning:: This API is deprecated in :mod:`repoze.bfg` 1.3. Use
:func:`repoze.bfg.renderers.get_renderer` instead.
"""
package = caller_package()
factory = renderers.RendererHelper(path, package=package)
return factory.get_renderer()
def get_template(path):
""" Return the underyling object representing a :term:`Chameleon`
ZPT template using the template implied by the ``path`` argument.
The ``path`` argument may be a package-relative path, an absolute
path, or a :term:`resource specification`.
.. warning:: This API is deprecated in :mod:`repoze.bfg` 1.3. Use
the ``implementation()`` method of a template renderer retrieved via
:func:`repoze.bfg.renderers.get_renderer` instead.
"""
package = caller_package()
factory = renderers.RendererHelper(path, package=package)
return factory.get_renderer().implementation()
def render_template(path, **kw):
""" Render a :term:`Chameleon` ZPT template using the template
implied by the ``path`` argument. The ``path`` argument may be a
package-relative path, an absolute path, or a :term:`resource
specification`. The arguments in ``*kw`` are passed as top-level
names to the template, and so may be used within the template
itself. Returns a string.
.. warning:: This API is deprecated in :mod:`repoze.bfg` 1.3. Use
:func:`repoze.bfg.renderers.render` instead.
"""
package = caller_package()
request = kw.pop('request', None)
renderer = renderers.RendererHelper(path, package=package)
return renderer.render(kw, None, request=request)
def render_template_to_response(path, **kw):
""" Render a :term:`Chameleon` ZPT template using the template
implied by the ``path`` argument. The ``path`` argument may be a
package-relative path, an absolute path, or a :term:`resource
specification`. The arguments in ``*kw`` are passed as top-level
names to the template, and so may be used within the template
itself. Returns a :term:`Response` object with the body as the
template result.
.. warning:: This API is deprecated in :mod:`repoze.bfg` 1.3. Use
:func:`repoze.bfg.renderers.render_to_response` instead.
"""
package = caller_package()
request = kw.pop('request', None)
renderer = renderers.RendererHelper(path, package=package)
return renderer.render_to_response(kw, None, request=request)
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