Merge branch 'reflow'
[wolnelektury.git] / apps / ajaxable / utils.py
diff --git a/apps/ajaxable/utils.py b/apps/ajaxable/utils.py
deleted file mode 100755 (executable)
index 2f03309..0000000
+++ /dev/null
@@ -1,192 +0,0 @@
-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
-
-# shortcut for JSON reponses
-class JSONResponse(HttpResponse):
-    def __init__(self, data={}, callback=None, **kwargs):
-        # get rid of mimetype
-        kwargs.pop('mimetype', None)
-        data = json.dumps(data)
-        if callback:
-            data = callback + "(" + data + ");" 
-        super(JSONResponse, self).__init__(data, mimetype="application/json", **kwargs)
-
-
-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 = "<script>window.location.reload()</script>"
-            if message:
-                output = "<div class='normal-text'>" + message + "</div>" + 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)