import boards from boards.settings import SECTION_FORMS PARAM_NEXT = 'next' PARAMETER_METHOD = 'method' PARAMETER_CURRENT_PAGE = 'current_page' PARAMETER_PAGINATOR = 'paginator' PARAMETER_PREV_LINK = 'prev_page_link' PARAMETER_NEXT_LINK = 'next_page_link' class DispatcherMixin: """ This class contains a dispather method that can run a method specified by 'method' request parameter. """ def __init__(self): self.user = None def dispatch_method(self, *args, **kwargs): request = args[0] self.user = request.user method_name = None if PARAMETER_METHOD in request.GET: method_name = request.GET[PARAMETER_METHOD] elif PARAMETER_METHOD in request.POST: method_name = request.POST[PARAMETER_METHOD] if method_name: return getattr(self, method_name)(*args, **kwargs) class FileUploadMixin: def get_max_upload_size(self): return boards.settings.get_int(SECTION_FORMS, 'MaxFileSize') class PaginatedMixin: def get_page_context(self, paginator, page): """ Get pagination context variables """ params = {} params[PARAMETER_PAGINATOR] = paginator current_page = paginator.page(int(page)) params[PARAMETER_CURRENT_PAGE] = current_page if current_page.has_previous(): params[PARAMETER_PREV_LINK] = paginator.get_page_url( current_page.previous_page_number()) if current_page.has_next(): params[PARAMETER_NEXT_LINK] = paginator.get_page_url( current_page.next_page_number()) return params