def render_pylucid_response(request, template_name, context, **kwargs):
"""
Similar to django.shortcuts.render_to_response.
If it's a ajax request: insert extra head content and return a HttpResponse object.
This will be send directly back to the client.
If it's not a ajax request: render the plugin template and return it as a String: So it
will be replace the cms page content in the global template. The complete page would be
rendered.
TODO: merge render_to() and render_pylucid_response()
"""
response_content = render_to_string(template_name, context, **kwargs)
if request.is_ajax():
# print "make ajax response..."
# Get the extrahead storage (pylucid.system.extrahead.ExtraHead)
extrahead = request.PYLUCID.extrahead
# Get the extra head content as a string
extra_head_content = extrahead.get()
# insert the extra head content into the response content
# Note: In a ajax view the {% extrahead %} block would normaly not rendered into
# the response content. Because the view returns a HttpResponse object, so all
# other processing skip and all PyLucid context middleware (in the global template)
# would not rendered.
response_content = extra_head_content + "\n" + response_content
http_response_kwargs = {'mimetype': kwargs.pop('mimetype', None)}
return HttpResponse(response_content, **http_response_kwargs)
else:
# print "make normal response..."
# Non-Ajax request: the string content would be replace the page content.
# The {% extrahead %} content would be inserted into the globale template with
# the PyLucid context middleware pylucid_plugin.extrahead.context_middleware
response = HttpResponse(response_content)
response.replace_main_content = True # Plugin replace the page content
return response