Design Patterns Catalog

search_catalog.py

class SearchCatalog(object):
    """
    - Design Patterns Catalog
    - https://github.com/faif/python-patterns/blob/master/catalog.py
    """

    def __new__(self, request, application, keywords):
        search_function = getattr(self, '%s_search' % application, False)
        if keywords == 'Search...':
            keywords = ''

        if search_function:
            try:
                results = search_function(request, keywords)
            except (UnicodeError, ValueError, TypeError):
                raise ValueError("Invalid value")
        else:
            results = {}

        return results

    @staticmethod
    def proposal_search(request, keywords):
        pass
    
    @staticmethod
    def cpo_search(request, keywords):
        pass