oo_filters.py 文件源码

def oo_filter_list(data, filter_attr=None):
        """ This returns a list, which contains all items where filter_attr
            evaluates to true
            Ex: data = [ { a: 1, b: True },
                         { a: 3, b: False },
                         { a: 5, b: True } ]
                filter_attr = 'b'
                returns [ { a: 1, b: True },
                          { a: 5, b: True } ]
        """
        if not isinstance(data, list):
            raise errors.AnsibleFilterError("|failed expects to filter on a list")

        if not isinstance(filter_attr, basestring):
            raise errors.AnsibleFilterError("|failed expects filter_attr is a str or unicode")

        # Gather up the values for the list of keys passed in
        return [x for x in data if filter_attr in x and x[filter_attr]]