def add_role(request):
# A HTTP POST?
if request.method == 'POST':
form = OpeningForm(request.POST)
# Have we been provided with a valid form?
if form.is_valid():
#first create a new role in the opening database
title=form.cleaned_data['title']
description=form.cleaned_data['description']
new_role=Opening(title=title, description=description)
new_role.save()
# get the projects the user wants to connect with this role
postings=form.cleaned_data['selected_projects']
# consider multiple projects that may be related to such opening.
for posting_id in postings:
posting=Posting.objects.get(pk=posting_id)
if posting:
# add the new relation (projects - roles related to the projects) into mainsite_posting_openings
print posting.openings.all()
posting.openings.add(new_role)
else:
print "No such project"
#get the role types that the role is under
role_types=form.cleaned_data['selected_role_types']
#allow one role to be under multiple role types
for role_id in role_types:
posting=Posting.objects.get(pk=role_id)
if posting:
#add the new relation into mainsite_posting_openings
posting.openings.add (new_role)
else:
print "No such Role type"
# Now call the index() view.
# The user will be shown the homepage.
return HttpResponseRedirect("/admin/") #add some pop up window for confirmation of save
else:
# The supplied form contained errors - just print them to the terminal.
print form.errors
else:
# If the request was not a POST, display the form to enter details.
form = OpeningForm()
# Bad form (or form details), no form supplied...
# Render the form with error messages (if any).
return render(request, 'change_role.html', {'form': form})
def edit_role(request, pk):
old_role = None
if pk:
old_role=Opening.objects.get(pk=pk)
if old_role:
form = OpeningForm(instance=old_role)
form.form_submit_action_url = "/admin/edit_role/" + pk + "/"
#Additionally, since there is no direct mapping from
#the model's openings set to the form's MultipleChoiceField,
#we'll need to generate the initial checked choices
initial_roletypes = []
initial_projects = []
all_roletypes = []
all_projects = []
postings = list(Posting.objects.all())
for posting in postings:
print str(posting.pk)+" "+posting.name+" "
# add the new relation into mainsite_posting_openings
if posting.posting_type == "role_type":
all_roletypes.append((posting.pk, posting.name))
else:
all_projects.append((posting.pk, posting.name))
# check if the old role is in this posting's opening
if old_role in posting.openings.all():
if posting.posting_type == "role_type":
initial_roletypes.append(posting.pk)
else:
initial_projects.append(posting.pk)
form.fields['selected_role_types'].choices = all_roletypes
form.fields['selected_projects'].choices = all_projects
form.fields['selected_role_types'].initial = initial_roletypes
form.fields['selected_projects'].initial = initial_projects
if request.method == 'POST':
form = OpeningForm(request.POST)
# Have we been provided with a valid form?
if form.is_valid():
#first create a new role in the opening database
#and then add a record to the relation
title=form.cleaned_data['title']
description=form.cleaned_data['description']
old_role.title=title
old_role.description=description
old_role.save()
postings=map(int, form.cleaned_data['selected_projects'])
#deselect_id: the postings that were originally linked to the roles
#but not any more
deselect_id=set(initial_projects)-set(postings)
#newselect_id: the postings that needed to be added to
#the relationship table in order to link to this role
newselect_id=set(postings)-set(initial_projects)
#updateselect_id: don't need to do anything for these category
#updateselect_id=set(postings) & set(initial_projects)
for posting_id in deselect_id:
posting=Posting.objects.get(pk=posting_id)
if posting:
#remove the relationship
posting.openings.remove(old_role)
for posting_id in newselect_id:
posting=Posting.objects.get(pk=posting_id)
if posting:
#add new relationship
posting.openings.add(old_role)
return HttpResponseRedirect("/admin")
else:
# The supplied form contained errors - just print them to the terminal.
print form.errors
else:
print "posting_form_handler: pk points to a nonexistent object"
return HttpResponseRedirect("/admin")
return render(request, 'change_role.html', {'form': form, 'is_edit': True})
