I am trying to make a z3c form in Plone that returns a PDF depending on the
input. So far this is more or less what I have, but it seems sub-optimal.
For example, I can't just check self.form.results_data after calling the
default template.__on__(self)(self), because it isn't there, which I found
confusing.
Where is the default template? There must be a better place to override the
entire response?
Thanks,
Daniel Holth
class F(form.Form):
ignoreContext = True
fields = field.Fields(IMyForm)
results_template = ViewPageTemplateFile('results.pt')
@button.buttonAndHandler(_(u"Submit"))
def locate(self, action):
data, errors = self.extractData()
try:
locator = getUtility(ISL)
joint = "Any"
self.results_data = locator.locate(data['zip'])
self.template = self.results_template
from cStringIO import StringIO
sio = StringIO()
reportlabstuff(sio, data['zip'], self.results_data)
self.request.response.setHeader('Content-Type',
'application/pdf')
self.request.response.setBody(sio.getvalue())
except Exception, e:
print e, type(e), e.__class__
raise form.interfaces.WidgetActionExecutionError(u'zip',
interface.Invalid(_(u'Unknown zip code. Please try another zip code.')))
class SLF(base.FormWrapper):
form = F
label = _(u"Form Label")
description = _(u"Enter your zip code to find the nearest
results.")
def inx(self):
template = zope.component.getMultiAdapter((self, self.request),
IPageTemplate)
formresult = template.__of__(self)(self)
if self.request.response.getHeader('Content-type') ==
"application/pdf":
return self.request.response
return formresult
index = inx
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