Source code for cubicweb_web.predicates

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from logilab.common.registry import Predicate

[docs]class paginated_rset(Predicate): """Return 1 or more for result set with more rows than one or more page size. You can specify expected number of pages to the initializer (default to one), and you'll get that number of pages as score if the result set is big enough. Page size is searched in (respecting order): * a `page_size` argument * a `page_size` form parameters * the `` property (see :ref:`PersistentProperties`) """ def __init__(self, nbpages=1): assert nbpages > 0 self.nbpages = nbpages def __call__(self, cls, req, rset=None, **kwargs): if rset is None: return 0 page_size = kwargs.get("page_size") if page_size is None: page_size = req.form.get("page_size") if page_size is not None: if page_size.isdecimal(): page_size = int(page_size) else: page_size = None if page_size is None: page_size_prop = getattr( cls, "page_size_property", "" ) page_size = req.property_value(page_size_prop) if len(rset) <= (page_size * self.nbpages): return 0 return self.nbpages