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group creators can add/remove organizers, delete events and group
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,135 @@ | ||
| # Class-based Views for handling multiple forms | ||
| # https://gist.github.com/jamesbrobb/748c47f46b9bd224b07f | ||
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| from django.views.generic.base import TemplateResponseMixin, ContextMixin | ||
| from django.views.generic.edit import ProcessFormView | ||
| from django.http import HttpResponseRedirect, HttpResponseForbidden | ||
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| class MultiFormMixin(ContextMixin): | ||
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| form_classes = {} | ||
| prefixes = {} | ||
| success_urls = {} | ||
| grouped_forms = {} | ||
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| initial = {} | ||
| prefix = None | ||
| success_url = None | ||
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| def get_form_classes(self): | ||
| return self.form_classes | ||
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| def get_forms(self, form_classes, form_names=None, bind_all=False): | ||
| return dict([(key, self._create_form(key, klass, | ||
| (form_names and key in form_names) or bind_all)) for key, klass in form_classes.items()]) | ||
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| def get_form_kwargs(self, form_name, bind_form=False): | ||
| kwargs = {} | ||
| kwargs.update({'initial': self.get_initial(form_name)}) | ||
| kwargs.update({'prefix': self.get_prefix(form_name)}) | ||
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| if bind_form: | ||
| kwargs.update(self._bind_form_data()) | ||
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| return kwargs | ||
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| def forms_valid(self, forms, form_name): | ||
| form_valid_method = '%s_form_valid' % form_name | ||
| if hasattr(self, form_valid_method): | ||
| return getattr(self, form_valid_method)(forms[form_name]) | ||
| else: | ||
| return HttpResponseRedirect(self.get_success_url(form_name)) | ||
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| def forms_invalid(self, forms): | ||
| return self.render_to_response(self.get_context_data(forms=forms)) | ||
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| def get_initial(self, form_name): | ||
| initial_method = 'get_%s_initial' % form_name | ||
| if hasattr(self, initial_method): | ||
| return getattr(self, initial_method)() | ||
| else: | ||
| return self.initial.copy() | ||
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| def get_prefix(self, form_name): | ||
| return self.prefixes.get(form_name, self.prefix) | ||
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| def get_success_url(self, form_name=None): | ||
| return self.success_urls.get(form_name, self.success_url) | ||
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| def _create_form(self, form_name, klass, bind_form): | ||
| form_kwargs = self.get_form_kwargs(form_name, bind_form) | ||
| form_create_method = 'create_%s_form' % form_name | ||
| if hasattr(self, form_create_method): | ||
| form = getattr(self, form_create_method)(**form_kwargs) | ||
| else: | ||
| form = klass(**form_kwargs) | ||
| return form | ||
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| def _bind_form_data(self): | ||
| if self.request.method in ('POST', 'PUT'): | ||
| return{'data': self.request.POST, | ||
| 'files': self.request.FILES, | ||
| } | ||
| return {} | ||
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| class ProcessMultipleFormsView(ProcessFormView): | ||
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| def get(self, request, *args, **kwargs): | ||
| form_classes = self.get_form_classes() | ||
| forms = self.get_forms(form_classes) | ||
| return self.render_to_response(self.get_context_data(forms=forms)) | ||
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| def post(self, request, *args, **kwargs): | ||
| form_classes = self.get_form_classes() | ||
| form_name = request.POST.get('action') | ||
| if self._individual_exists(form_name): | ||
| return self._process_individual_form(form_name, form_classes) | ||
| elif self._group_exists(form_name): | ||
| return self._process_grouped_forms(form_name, form_classes) | ||
| else: | ||
| return self._process_all_forms(form_classes) | ||
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| def _individual_exists(self, form_name): | ||
| return form_name in self.form_classes | ||
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| def _group_exists(self, group_name): | ||
| return group_name in self.grouped_forms | ||
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| def _process_individual_form(self, form_name, form_classes): | ||
| forms = self.get_forms(form_classes, (form_name,)) | ||
| form = forms.get(form_name) | ||
| if not form: | ||
| return HttpResponseForbidden() | ||
| elif form.is_valid(): | ||
| return self.forms_valid(forms, form_name) | ||
| else: | ||
| return self.forms_invalid(forms) | ||
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| def _process_grouped_forms(self, group_name, form_classes): | ||
| form_names = self.grouped_forms[group_name] | ||
| forms = self.get_forms(form_classes, form_names) | ||
| if all([forms.get(form_name).is_valid() for form_name in form_names.values()]): | ||
| return self.forms_valid(forms) | ||
| else: | ||
| return self.forms_invalid(forms) | ||
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| def _process_all_forms(self, form_classes): | ||
| forms = self.get_forms(form_classes, None, True) | ||
| if all([form.is_valid() for form in forms.values()]): | ||
| return self.forms_valid(forms) | ||
| else: | ||
| return self.forms_invalid(forms) | ||
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| class BaseMultipleFormsView(MultiFormMixin, ProcessMultipleFormsView): | ||
| """ | ||
| A base view for displaying several forms. | ||
| """ | ||
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| class MultiFormsView(TemplateResponseMixin, BaseMultipleFormsView): | ||
| """ | ||
| A view for displaying several forms, and rendering a template response. | ||
| """ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| {% extends "base.html" %} | ||
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| {% block content %} | ||
| <h3>Add organizers</h3> | ||
| <form action="{% url 'edit_organizers' object.slug %}" method="post"> | ||
| {% csrf_token %} | ||
| {{ forms.add.as_p }} | ||
| <button name="action" value="add" class="btn btn-default" type="submit">Add</button> | ||
| </form> | ||
| <hr /> | ||
| <h3>Remove organizers</h3> | ||
| <form action="{% url 'edit_organizers' object.slug %}" method="post"> | ||
| {% csrf_token %} | ||
| {{ forms.remove.as_p }} | ||
| <button name="action" value="remove" class="btn btn-danger" type="submit">Remove</button> | ||
| </form> | ||
| {% endblock content %} |
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