当前位置: 首页>>代码示例>>Python>>正文


Python Rule.add_condition方法代码示例

本文整理汇总了Python中rule.Rule.add_condition方法的典型用法代码示例。如果您正苦于以下问题:Python Rule.add_condition方法的具体用法?Python Rule.add_condition怎么用?Python Rule.add_condition使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在rule.Rule的用法示例。


在下文中一共展示了Rule.add_condition方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: AssertAggregate

# 需要导入模块: from rule import Rule [as 别名]
# 或者: from rule.Rule import add_condition [as 别名]
class AssertAggregate(Assert):
    def __init__(self, **kwargs):
        self.map_reduce_values = {}
        for key, value in kwargs.items():
            if isinstance(value, MapReduceFunc):
                del kwargs[key]
                subkeys = []
                for n, map_value in enumerate(value.map_values):
                    subkey = key if n == 0 else '{}_{}'.format(key, n+1)
                    kwargs[subkey] = map_value
                    subkeys.append(subkey)
                self.map_reduce_values[key] = (value, subkeys)
        super(AssertAggregate, self).__init__(**kwargs)
        
    def prepare_rule(self, rule):
        self.data.update({key : normalize_expr(value) for key, value in rule.groupby.iteritems()})
        self.data[UNIQUE_INDEX_FIELD] = gensym()  
        super(AssertAggregate, self).prepare_rule(rule)
        self._create_reduce_rule(rule)
        
    def _create_reduce_rule(self, map_rule):
        r1 = map_rule.target[0]
        r2 = map_rule.target[1]
        self.reduce_rule = Rule()
        self.reduce_rule.set_name('_Reduce')
        for field_name in map_rule.groupby:
            self.reduce_rule.add_variable(getattr(r1, field_name), getattr(r2, field_name))
        self.reduce_rule.add_condition(fact_index(r1) != fact_index(r2))
        
        reduce_kwargs = {}
        for field_name, (value, subfields) in self.map_reduce_values.iteritems():
            v1 = [getattr(r1, field_name) for field_name in subfields]
            v2 = [getattr(r2, field_name) for field_name in subfields]
            if len(subfields) == 1: 
                v1 = v1[0]
                v2 = v2[0]
            reduced = value._reduce(v1, v2)
            if len(subfields) == 1:
                reduced = [reduced]
            reduce_kwargs.update(dict(zip(subfields, reduced)))
        self.reduce_rule.add_action(Delete(r2))
        self.reduce_rule.add_action(Update(r1, **reduce_kwargs))
        self.reduce_rule.set_salience(map_rule.salience)
        map_rule.add_secondary_rule(self.reduce_rule)
开发者ID:jhicks-camgian,项目名称:rulu,代码行数:46,代码来源:builtin_aggregations.py


注:本文中的rule.Rule.add_condition方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。