尝试通过 ArcGIS Online 更新 GIS 要素时出现循环引用错误

Question

我正在尝试按照列出的步骤 here 从本地特征 class 更新 AGOL 上的特征。我一直在 for 循环中获得循环引用，但我不确定为什么会这样。

请查看下面我使用的代码。

import arcgis, arcpy, csv, os, time, copy, pandas as pd
from arcgis.gis import GIS
from pandas import DataFrame
from copy import deepcopy
gis = GIS("url", "username","pass")
fc = gis.content.get('ItemID')
flayer = fc.layers[0]
fset=flayer.query()
fields = ('GPS_Time','Visibility','EngineeringSection','Condition')
UpdateLayer  = "C:\Users\USer\Documents\ArcGIS\Default.gdb\Data"
UpdateTable=DataFrame(arcpy.da.FeatureClassToNumPyArray(UpdateLayer , fields, skip_nulls=True))
overlap_rows = pd.merge(left=fset.sdf, right = UpdateTable, how='inner', on='EngineeringSection')
features_for_update = []
all_features = fset.features    
for EngSec in overlap_rows['EngineeringSection']:
    original_feature = [f for f in all_features if     f.attributes['EngineeringSection'] == EngSec][0]
    feature_to_be_updated = deepcopy(original_feature)
    matching_row = UpdateTable.where(UpdateTable['EngineeringSection'] == EngSec).dropna()
    original_feature.attributes['GPS_Time'] = (matching_row['GPS_Time'])
    original_feature.attributes['Visibility'] = int(matching_row['Visibility'])
    original_feature.attributes['Condition'] = str(matching_row['Condition'])
    update_result = flayer.edit_features(updates=[original_feature])
    flayer.edit_features(updates= features_for_update)

这是我收到的错误：

Traceback (most recent call last):
  File "<stdin>", line 9, in <module>
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\site-packages\arcgis\features\layer.py", line 1249, in edit_features
default=_date_handler)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\json\__init__.py", line 238, in dumps
**kw).encode(obj)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\json\encoder.py", line 199, in encode
chunks = self.iterencode(o, _one_shot=True)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\lib\json\encoder.py", line 257, in iterencode
return _iterencode(o, 0)
ValueError: Circular reference detected

Answer 1

下面的行指定一个元组作为属性值。是你想要的吗？

original_feature.attributes['GPS_Time'] = (matching_row['GPS_Time'])

如果你想分配这个值就这样做：

original_feature.attributes['GPS_Time'] = matching_row['GPS_Time']

此外，我认为这一行：

flayer.edit_features(updates= features_for_update)

应该是：

flayer.edit_features(updates=[feature_to_be_updated])

Answer 2

感谢您的帮助，我终于搞定了运行这个脚本：我还添加了一些时间，看看需要多长时间

import arcpy, csv, os, time
import pandas as pd
from arcgis.gis import GIS
from pandas import DataFrame
from copy import deepcopy
start_time = time.time()
gis = GIS("url", "user","pass")
fc = gis.content.get('ContentID')
flayer = fc.layers[0]
fset=flayer.query()
fields = ('GPS_Time','Visibility','EngineeringSection','Condition')
UpdateLayer  = "C:\Users\user\Documents\ArcGIS\Default.gdb\data"
UpdateTable=DataFrame(arcpy.da.FeatureClassToNumPyArray(UpdateLayer , fields, skip_nulls=True))
overlap_rows = pd.merge(left=fset.sdf, right = UpdateTable, how='inner', on='EngineeringSection')
features_for_update = []
all_features = fset.features
for EngSec in overlap_rows['EngineeringSection']:
    original_feature = [f for f in all_features if f.attributes['EngineeringSection'] == EngSec][0]
    feature_to_be_updated = deepcopy(original_feature)
    matching_row = UpdateTable.where(UpdateTable['EngineeringSection'] == EngSec).dropna()
    feature_to_be_updated.attributes['GPS_Time'] = matching_row['GPS_Time'].iloc[0]
    feature_to_be_updated.attributes['Visibility'] = int(matching_row['Visibility'])
    feature_to_be_updated.attributes['Condition'] = str(matching_row['Condition'].iloc[0])
    update_result = flayer.edit_features(updates=[feature_to_be_updated])
    update_result
elapsed_time = time.time() - start_time
totaltime = time.strftime("%H:%M:%S", time.gmtime(elapsed_time))
print("Total processing time: "+ totaltime)

尝试通过 ArcGIS Online 更新 GIS 要素时出现循环引用错误

Circular reference error when trying to update GIS features through ArcGIS Online

python

pandas

arcgis

arcpy