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from django.shortcuts import render, get_object_or_404
from pgweb.util.contexts import render_pgweb
from django.http import HttpResponseRedirect, Http404
from django.template.loader import get_template
import django.utils.xmlutils
def simple_form(instancetype, itemid, request, formclass, formtemplate='base/form.html', redirect='/account/', navsection='account', fixedfields=None, createifempty=False):
if itemid == 'new':
instance = instancetype()
else:
# Regular form item, attempt to edit it
try:
int(itemid)
except ValueError:
raise Http404("Invalid URL")
if createifempty:
(instance, wascreated) = instancetype.objects.get_or_create(pk=itemid)
else:
instance = get_object_or_404(instancetype, pk=itemid)
if hasattr(instance, 'submitter'):
if not instance.submitter == request.user:
raise Exception("You are not the owner of this item!")
elif hasattr(instance, 'verify_submitter'):
if not instance.verify_submitter(request.user):
raise Exception("You are not the owner of this item!")
if request.method == 'POST':
# Process this form
form = formclass(data=request.POST, instance=instance)
if form.is_valid():
r = form.save(commit=False)
r.submitter = request.user
# Set fixed fields. Note that this will not work if the fixed fields are ManyToMany,
# but we'll fix that sometime in the future
if fixedfields:
for k, v in list(fixedfields.items()):
setattr(r, k, v)
r.save()
# If we have a callback with the current user
if hasattr(form, 'apply_submitter'):
form.apply_submitter(r, request.user)
r.save()
form.save_m2m()
return HttpResponseRedirect(redirect)
else:
# Generate form
form = formclass(instance=instance)
if hasattr(form, 'filter_by_user'):
form.filter_by_user(request.user)
for fn in form.fields:
if fn in getattr(instancetype, 'markdown_fields', []):
form.fields[fn].widget.attrs.update({'class': 'markdown-content'})
for togg in getattr(form, 'toggle_fields', []):
form.fields[togg['name']].widget.attrs.update({
'data-toggles': ','.join(togg['fields']),
'data-toggle-invert': togg['invert'] and 'true' or 'false',
'class': 'toggle-checkbox',
})
return render_pgweb(request, navsection, formtemplate, {
'form': form,
'formitemtype': instance._meta.verbose_name,
'form_intro': hasattr(form, 'form_intro') and form.form_intro or None,
'described_checkboxes': getattr(form, 'described_checkboxes', {}),
'savebutton': (itemid == "new") and "Submit New" or "Save",
'operation': (itemid == "new") and "New" or "Edit",
})
def template_to_string(templatename, attrs={}):
return get_template(templatename).render(attrs)
def HttpServerError(request, msg):
r = render(request, 'errors/500.html', {
'message': msg,
})
r.status_code = 500
return r
class PgXmlHelper(django.utils.xmlutils.SimplerXMLGenerator):
def __init__(self, outstream, skipempty=False):
django.utils.xmlutils.SimplerXMLGenerator.__init__(self, outstream, 'utf-8')
self.skipempty = skipempty
def add_xml_element(self, name, value):
if self.skipempty and value == '':
return
self.startElement(name, {})
self.characters(value)
self.endElement(name)
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