3 \@s\ddlZddlmZddlmZmZejdZeddZGddde Z Gd d d e Z dS) N)chain) get_class get_modelz oscar.offersz offer.resultsOfferApplicationsc@s eZdZdS)OfferApplicationErrorN)__name__ __module__ __qualname__r r 6/var/www/html/oscar2019/oscar/apps/offer/applicator.pyr src@sHeZdZdddZddZdddZdd Zd d Zd d ZddZ dS) ApplicatorNcCs|j|||}|j||dS)z Apply all relevant offers to the given basket. The request is passed too as sometimes the available offers are dependent on the user (eg session-based offers). N) get_offers apply_offers)selfbasketuserrequestoffersr r r applyszApplicator.applycCsft}xT|D]L}d}xB||j|jkrV|j|}|d7}|js@P|j|||jrPqWq W||_dS)Nr)rZget_max_applicationsownerZ apply_benefit is_successfuladdis_finaloffer_applications)rrr applicationsofferZnum_applicationsresultr r r rs    zApplicator.apply_offerscCsH|j}|j||}|j|}|j|}ttt||||ddddS)z Return all offers to apply to the basket. This method should be subclassed and extended to provide more sophisticated behaviour. For instance, you could load extra offers based on the session or the user type. cSs|jS)N)priority)or r r =sz'Applicator.get_offers..T)keyreverse)get_site_offersget_basket_offersget_user_offersget_session_offerslistsortedr)rrrrZ site_offers basket_offersZ user_offersZsession_offersr r r r .s    zApplicator.get_offerscCs&tdd}|jj|jd}|jddS)zD Return site offers that are available to all users rConditionalOffer)Z offer_type conditionZbenefit)ractivefilterZSITEselect_related)rr*qsr r r r#?s zApplicator.get_site_offersc Cszg}|j s| r|Sx^|jjD]P}|j|d\}}|jr"|r"|jj}x|D]}|j|qRWtt||}q"W|S)zb Return basket-linked offers such as those associated with a voucher code )r) idvouchersallZis_available_to_user is_activerZ set_voucherr'r) rrrrvoucherZavailable_to_user__r)rr r r r$Js   zApplicator.get_basket_offerscCsgS)zm Returns offers linked to this particular user. Eg: student users might get 25% off r )rrr r r r%\szApplicator.get_user_offerscCsgS)z Returns temporary offers linked to the current session. Eg: visitors coming from an affiliate site get a 10% discount r )rrr r r r&dszApplicator.get_session_offers)NN)NN) rrr rrr r#r$r%r&r r r r r s   r ) logging itertoolsroscar.core.loadingrr getLoggerloggerr Exceptionrobjectr r r r r s