X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/82c3054bcdeb000aa9782da80d644070797b5cbe..ae60b2a3949e96357477cc04f90fd0873cee8a92:/apps/ajaxable/utils.py diff --git a/apps/ajaxable/utils.py b/apps/ajaxable/utils.py deleted file mode 100755 index 89b56228d..000000000 --- a/apps/ajaxable/utils.py +++ /dev/null @@ -1,186 +0,0 @@ -# -*- coding: utf-8 -*- -# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later. -# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. -# -from functools import wraps - -from django.http import (HttpResponse, HttpResponseRedirect, - HttpResponseForbidden) -from django.shortcuts import render_to_response -from django.template import RequestContext -from django.utils.encoding import force_unicode -from django.utils.functional import Promise -from django.utils.http import urlquote_plus -import json -from django.utils.translation import ugettext_lazy as _ -from django.views.decorators.vary import vary_on_headers -from honeypot.decorators import verify_honeypot_value - - -class LazyEncoder(json.JSONEncoder): - def default(self, obj): - if isinstance(obj, Promise): - return force_unicode(obj) - return obj - - -def method_decorator(function_decorator): - """Converts a function decorator to a method decorator. - - It just makes it ignore first argument. - """ - def decorator(method): - @wraps(method) - def wrapped_method(self, *args, **kwargs): - def function(*fargs, **fkwargs): - return method(self, *fargs, **fkwargs) - return function_decorator(function)(*args, **kwargs) - return wrapped_method - return decorator - - -def require_login(request): - """Return 403 if request is AJAX. Redirect to login page if not.""" - if request.is_ajax(): - return HttpResponseForbidden('Not logged in') - else: - return HttpResponseRedirect('/uzytkownicy/zaloguj')# next?=request.build_full_path()) - - -def placeholdized(form): - for field in form.fields.values(): - field.widget.attrs['placeholder'] = field.label - return form - - -class AjaxableFormView(object): - """Subclass this to create an ajaxable view for any form. - - In the subclass, provide at least form_class. - - """ - form_class = None - placeholdize = False - # override to customize form look - template = "ajaxable/form.html" - submit = _('Send') - - title = '' - success_message = '' - POST_login = False - formname = "form" - form_prefix = None - full_template = "ajaxable/form_on_page.html" - honeypot = False - - @method_decorator(vary_on_headers('X-Requested-With')) - def __call__(self, request, *args, **kwargs): - """A view displaying a form, or JSON if request is AJAX.""" - obj = self.get_object(request, *args, **kwargs) - form_args, form_kwargs = self.form_args(request, obj) - if self.form_prefix: - form_kwargs['prefix'] = self.form_prefix - - if request.method == "POST": - if self.honeypot: - response = verify_honeypot_value(request, None) - if response: - return response - - # do I need to be logged in? - if self.POST_login and not request.user.is_authenticated(): - return require_login(request) - - form_kwargs['data'] = request.POST - form = self.form_class(*form_args, **form_kwargs) - if form.is_valid(): - add_args = self.success(form, request) - response_data = { - 'success': True, - 'message': self.success_message, - 'redirect': request.GET.get('next') - } - if add_args: - response_data.update(add_args) - if not request.is_ajax() and response_data['redirect']: - return HttpResponseRedirect(urlquote_plus( - response_data['redirect'], safe='/?=&')) - elif request.is_ajax(): - # Form was sent with errors. Send them back. - if self.form_prefix: - errors = {} - for key, value in form.errors.items(): - errors["%s-%s" % (self.form_prefix, key)] = value - else: - errors = form.errors - response_data = {'success': False, 'errors': errors} - else: - response_data = None - if request.is_ajax(): - return HttpResponse(LazyEncoder(ensure_ascii=False).encode(response_data)) - else: - if (self.POST_login and not request.user.is_authenticated() - and not request.is_ajax()): - return require_login(request) - - form = self.form_class(*form_args, **form_kwargs) - response_data = None - - title = self.title - if request.is_ajax(): - template = self.template - else: - template = self.full_template - cd = self.context_description(request, obj) - if cd: - title += ": " + cd - if self.placeholdize: - form = placeholdized(form) - context = { - self.formname: form, - "title": title, - "honeypot": self.honeypot, - "placeholdize": self.placeholdize, - "submit": self.submit, - "response_data": response_data, - "ajax_template": self.template, - "view_args": args, - "view_kwargs": kwargs, - } - context.update(self.extra_context(request, obj)) - return render_to_response(template, context, - context_instance=RequestContext(request)) - - def redirect_or_refresh(self, request, path, message=None): - """If the form is AJAX, refresh the page. If not, go to `path`.""" - if request.is_ajax(): - output = "" - if message: - output = "
" + message + "
" + output - return HttpResponse(output) - else: - return HttpResponseRedirect(path) - - def get_object(self, request, *args, **kwargs): - """Override to parse view args and get some associated data.""" - return None - - def form_args(self, request, obj): - """Override to parse view args and give additional args to the form.""" - return (), {} - - def extra_context(self, request, obj): - """Override to pass something to template.""" - return {} - - def context_description(self, request, obj): - """Description to appear in standalone form, but not in AJAX form.""" - return "" - - def success(self, form, request): - """What to do when the form is valid. - - By default, just save the form. - - """ - return form.save(request)