X-Git-Url: https://git.openstreetmap.org./osqa.git/blobdiff_plain/e14bec1444b50a351b0d228d25f6d6cf56a8151c..86ea15e661da496ae65806a684cc062b57ba689a:/forum/utils/pagination.py diff --git a/forum/utils/pagination.py b/forum/utils/pagination.py index afadb28..d605d5f 100644 --- a/forum/utils/pagination.py +++ b/forum/utils/pagination.py @@ -3,28 +3,42 @@ from django.utils.datastructures import SortedDict from django import template from django.core.paginator import Paginator, EmptyPage from django.utils.translation import ugettext as _ +from django.utils.html import escape from django.http import Http404 -from django.utils.safestring import mark_safe +from django.utils.encoding import smart_unicode from django.utils.http import urlquote +from django.utils.safestring import mark_safe +from django.utils.html import strip_tags, escape +from forum.utils.html import sanitize_html import logging -class SimpleSort(object): - def __init__(self, label, order_by, description=''): - self.label = label - self.description = description - self.order_by = order_by +def generate_uri(querydict, exclude=None): + all = [] - def apply(self, objects): - return objects.order_by(self.order_by) + for k, l in querydict.iterlists(): + if (not exclude) or (not k in exclude): + all += ["%s=%s" % (k, escape(strip_tags(v))) for v in l] + + return "&".join(all) -class DummySort(object): +class SortBase(object): def __init__(self, label, description=''): self.label = label self.description = description +class SimpleSort(SortBase): + def __init__(self, label, order_by, description=''): + super(SimpleSort, self) .__init__(label, description) + self.order_by = order_by + + def _get_order_by(self): + return isinstance(self.order_by, (list, tuple)) and self.order_by or [self.order_by] + def apply(self, objects): - return objects + if self.order_by: + return objects.order_by(*self._get_order_by()) + return objects class PaginatorContext(object): visible_page_range = 5 @@ -32,8 +46,8 @@ class PaginatorContext(object): base_path = None - def __init__(self, id, sort_methods=None, default_sort=None, force_sort = None, sticky_sort=False, - pagesizes=None, default_pagesize=None): + def __init__(self, id, sort_methods=None, default_sort=None, force_sort = None, + pagesizes=None, default_pagesize=None, prefix=''): self.id = id if sort_methods: self.has_sort = True @@ -59,29 +73,45 @@ class PaginatorContext(object): self.has_pagesize = False self.force_sort = force_sort - self.sticky_sort = sticky_sort + self.prefix = prefix + + def preferences(self, request): + if request.user.is_authenticated(): + if request.user.prop.pagination: + preferences = request.user.prop.pagination.get(self.id, {}) + else: + preferences = {} + else: + preferences = request.session.get('paginator_%s%s' % (self.prefix, self.id), {}) + + return preferences - def session_preferences(self, request): - return request.session.get('paginator_%s' % self.id, {}) + def set_preferences(self, request, preferences): + if request.user.is_authenticated(): + all_preferences = request.user.prop.pagination or {} + all_preferences[self.id] = preferences + request.user.prop.pagination = all_preferences + else: + request.session['paginator_%s%s' % (self.prefix, self.id)] = preferences def pagesize(self, request, session_prefs=None): if not session_prefs: - session_prefs = self.session_preferences(request) + session_prefs = self.preferences(request) if self.has_pagesize: - if request.GET.get(labels.PAGESIZE, None): + if request.GET.get(self.PAGESIZE, None): try: - pagesize = int(request.GET[labels.PAGESIZE]) + pagesize = int(request.GET[self.PAGESIZE]) except ValueError: logging.error('Found invalid page size "%s", loading %s, refered by %s' % ( - request.GET.get(labels.PAGESIZE, ''), request.path, request.META.get('HTTP_REFERER', 'UNKNOWN') + request.GET.get(self.PAGESIZE, ''), request.path, request.META.get('HTTP_REFERER', 'UNKNOWN') )) raise Http404() - session_prefs[labels.PAGESIZE] = pagesize + session_prefs[self.PAGESIZE] = pagesize else: - pagesize = session_prefs.get(labels.PAGESIZE, self.default_pagesize) + pagesize = session_prefs.get(self.PAGESIZE, self.default_pagesize) if not pagesize in self.pagesizes: pagesize = self.default_pagesize @@ -92,25 +122,28 @@ class PaginatorContext(object): def page(self, request): try: - return int(request.GET.get(labels.PAGE, 1)) + return int(request.GET.get(self.PAGE, "1").strip()) except ValueError: logging.error('Found invalid page number "%s", loading %s, refered by %s' % ( - request.GET.get(labels.PAGE, ''), request.path, request.META.get('HTTP_REFERER', 'UNKNOWN') + request.GET.get(self.PAGE, ''), request.path, request.META.get('HTTP_REFERER', 'UNKNOWN') )) raise Http404() def sort(self, request, session_prefs=None): if not session_prefs: - session_prefs = self.session_preferences(request) + session_prefs = self.preferences(request) sort = None + sticky = request.user.is_authenticated() and request.user.prop.preferences and request.user.prop.preferences.get('sticky_sorts', False) + if self.has_sort: - if request.GET.get(labels.SORT, None): - sort = request.GET[labels.SORT] - if self.sticky_sort or session_prefs.get('sticky_sort', False): - session_prefs[labels.SORT] = sort + if request.GET.get(self.SORT, None): + sort = request.GET[self.SORT] + + if sticky: + session_prefs[self.SORT] = sort else: - sort = self.force_sort or session_prefs.get(labels.SORT, self.default_sort) + sort = self.force_sort or (sticky and session_prefs.get(self.SORT, None)) or self.default_sort if not sort in self.sort_methods: sort = self.default_sort @@ -125,20 +158,33 @@ class PaginatorContext(object): return sort, objects + @property + def PAGESIZE(self): + return self.prefix and "%s_%s" % (self.prefix, _('pagesize')) or _('pagesize') + + @property + def PAGE(self): + return self.prefix and "%s_%s" % (self.prefix, _('page')) or _('page') -class labels(object): - PAGESIZE = _('pagesize') - PAGE = _('page') - SORT = _('sort') + @property + def SORT(self): + return self.prefix and "%s_%s" % (self.prefix, _('sort')) or _('sort') page_numbers_template = template.loader.get_template('paginator/page_numbers.html') page_sizes_template = template.loader.get_template('paginator/page_sizes.html') sort_tabs_template = template.loader.get_template('paginator/sort_tabs.html') -def paginated(request, list_name, context, tpl_context): - session_prefs = context.session_preferences(request) +def paginated(request, paginators, tpl_context): + if len(paginators) == 2 and isinstance(paginators[0], basestring): + paginators = (paginators,) - objects = tpl_context[list_name] + for list_name, context in paginators: + tpl_context[list_name] = _paginated(request, tpl_context[list_name], context) + + return tpl_context + +def _paginated(request, objects, context): + session_prefs = context.preferences(request) pagesize = context.pagesize(request, session_prefs) page = context.page(request) @@ -150,7 +196,7 @@ def paginated(request, list_name, context, tpl_context): page_obj = paginator.page(page) except EmptyPage: logging.error('Found invalid page number "%s", loading %s, refered by %s' % ( - request.GET.get(labels.PAGE, ''), request.path, request.META.get('HTTP_REFERER', 'UNKNOWN') + request.GET.get(context.PAGE, ''), request.path, request.META.get('HTTP_REFERER', 'UNKNOWN') )) raise Http404() @@ -158,21 +204,21 @@ def paginated(request, list_name, context, tpl_context): base_path = context.base_path else: base_path = request.path - get_params = ["%s=%s" % (k, v) for k, v in request.GET.items() if not k in (labels.PAGE, labels.PAGESIZE, labels.SORT)] + get_params = generate_uri(request.GET, (context.PAGE, context.PAGESIZE, context.SORT)) if get_params: - base_path += "?" + "&".join(get_params) + base_path += "?" + get_params - url_joiner = "?" in base_path and "&" or "?" + url_joiner = "?" in base_path and "&" or "?" def get_page(): object_list = page_obj.object_list - if hasattr(object_list, 'lazy'): - return object_list.lazy() - return page_obj.object_list - objects.page = get_page + #if hasattr(object_list, 'lazy'): + # return object_list.lazy() + return object_list + paginator.page = get_page() total_pages = paginator.num_pages @@ -199,9 +245,9 @@ def paginated(request, list_name, context, tpl_context): page_numbers = [] if sort: - url_builder = lambda n: mark_safe("%s%s%s=%s&%s=%s" % (base_path, url_joiner, labels.SORT, sort, labels.PAGE, n)) + url_builder = lambda n: mark_safe("%s%s%s=%s&%s=%s" % (escape(base_path), url_joiner, context.SORT, sort, context.PAGE, n)) else: - url_builder = lambda n: mark_safe("%s%s%s=%s" % (base_path, url_joiner, labels.PAGE, n)) + url_builder = lambda n: mark_safe("%s%s%s=%s" % (escape(base_path), url_joiner, context.PAGE, n)) if range_start > (context.outside_page_range + 1): page_numbers.append([(n, url_builder(n)) for n in range(1, context.outside_page_range + 1)]) @@ -225,16 +271,16 @@ def paginated(request, list_name, context, tpl_context): 'current': page, 'page_numbers': page_numbers })) - objects.page_numbers = page_nums + paginator.page_numbers = page_nums else: - objects.page_numbers = '' + paginator.page_numbers = '' if pagesize: def page_sizes(): if sort: - url_builder = lambda s: mark_safe("%s%s%s=%s&%s=%s" % (base_path, url_joiner, labels.SORT, sort, labels.PAGESIZE, s)) + url_builder = lambda s: mark_safe("%s%s%s=%s&%s=%s" % (escape(base_path), url_joiner, context.SORT, sort, context.PAGESIZE, s)) else: - url_builder = lambda s: mark_safe("%s%s%s=%s" % (base_path, url_joiner, labels.PAGESIZE, s)) + url_builder = lambda s: mark_safe("%s%s%s=%s" % (escape(base_path), url_joiner, context.PAGESIZE, s)) sizes = [(s, url_builder(s)) for s in context.pagesizes] @@ -243,24 +289,30 @@ def paginated(request, list_name, context, tpl_context): 'sizes': sizes })) - objects.page_sizes = page_sizes + paginator.page_sizes = page_sizes else: - objects.page_sizes = '' + paginator.page_sizes = '' if sort: def sort_tabs(): - url_builder = lambda s: mark_safe("%s%s%s=%s" % (base_path, url_joiner, labels.SORT, s)) - sorts = [(n, s.label, url_builder(n), s.description) for n, s in context.sort_methods.items()] + url_builder = lambda s: mark_safe("%s%s%s=%s" % (escape(base_path), url_joiner, context.SORT, s)) + sorts = [(n, s.label, url_builder(n), strip_tags(s.description)) for n, s in context.sort_methods.items()] + + for name, label, url, descr in sorts: + paginator.__dict__['%s_sort_link' % name] = smart_unicode(url) return sort_tabs_template.render(template.Context({ 'current': sort, 'sorts': sorts, 'sticky': session_prefs.get('sticky_sort', False) })) - objects.sort_tabs = sort_tabs() + paginator.sort_tabs = sort_tabs() + paginator.sort_description = mark_safe(context.sort_methods[sort].description) + paginator.current_sort = sort else: - objects.sort_tabs = '' + paginator.sort_tabs = paginator.sort_description = '' + paginator.current_sort = '' - request.session['paginator_%s' % context.id] = session_prefs - tpl_context[list_name] = objects - return tpl_context \ No newline at end of file + context.set_preferences(request, session_prefs) + objects.paginator = paginator + return objects