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30 def pyfilter(func, seq): 31 """ filter(func, seq) """ 32 33 if func and seq: 34 return ( filter(func, seq), ) 35 else: 36 return ( [], )
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116 def dict_to_filter_params(d, prefix=''): 117 """ 118 Translate a dictionary of attributes to a nested set of parameters suitable for QuerySet filtering. For example: 119 120 { 121 "name": "Foo", 122 "rack": { 123 "facility_id": "R101" 124 } 125 } 126 127 Becomes: 128 129 { 130 "name": "Foo", 131 "rack__facility_id": "R101" 132 } 133 134 And can be employed as filter parameters: 135 136 Device.objects.filter(**dict_to_filter(attrs_dict)) 137 """ 138 params = {} 139 for key, val in d.items(): 140 k = prefix + key 141 if isinstance(val, dict): 142 params.update(dict_to_filter_params(val, k + '__')) 143 else: 144 params[k] = val 145 return params