报表数据可以通过Salesforce Reports and Dashboards REST API检索。从 Summer'15(版本 34.0)开始,这在 Salesforce 中有效。
由于 REST API,我用包Simple-salesforce编写了一个示例。(但是,可以在没有 simple-salesforce 的情况下重写它并使用 Beatbox 的 api 会话,编写至少大约 10 行额外的代码并仅安装requests包。)
通用代码
from collections import OrderedDict
from simple_salesforce import Salesforce
import pandas as pd
import json
class SfReportsApi(Salesforce):
def __init__(self, *args, **kwargs):
super(SfReportsApi, self).__init__(*args, **kwargs)
def describe_report(self, report_id):
return self._call_report(report_id, command='/describe')
def to_pandas_dataframe(self, report_id, metadata=None):
"""SF report details exported to DataFrame, can be modified by metadata"""
resp = self._call_report(report_id, metadata=metadata)
if not resp['allData']:
print("Detailed data have been truncated to the usual report limit (2000).")
columns = []
converters = []
get_label = lambda x: x['label']
sf_pandas_map = {
'boolean': lambda x: x['value'],
'currency': lambda x: x['value']['amount'],
'date': lambda x: pd.Timestamp(x['value']),
'datetime': lambda x: pd.Timestamp(x['value']),
'double': lambda x: x['value'],
'picklist': get_label,
'string': get_label,
'textarea': get_label,
}
for col in resp['reportExtendedMetadata']['detailColumnInfo'].values():
columns.append(col['label'])
converters.append(sf_pandas_map.get(col['dataType'], get_label))
data = [[conv(cell) for conv, cell in zip(converters, row['dataCells'])]
for sect_key, section in resp['factMap'].items()
if sect_key != 'T!T'
for row in section['rows']
]
df = pd.DataFrame(data, columns=columns)
return df
def _call_report(self, report_id, metadata=None, command=None):
url = '{}analytics/reports/{}{}'.format(self.base_url, report_id, command or '')
data = json.dumps({'reportMetadata': metadata}) if metadata else None
resp = self._call_salesforce('POST' if metadata else 'GET', url, data=data)
return resp.json(object_pairs_hook=OrderedDict)
使用示例
report_id = '00O24000004qtI4EAI'
# set Salesforce session_id some way (by login or reused from other app)
sf = SfReportsApi(username='me@example.com', password='password', security_token='token')
# sf = SfReportsApi(instance_url='https://na1.salesforce.com', session_id='')
# get report metadata if useful
metadata = sf.describe_report(report_id)['reportMetadata']
# modify them or write only the modified keys, e.g. change filters or remove subtotals etc.
metadata = {
'orderBy': ['ACCOUNT.NAME'],
'reportFilters': [{'value': 'W', 'column': 'ACCOUNT.NAME', 'operator': greaterOrEqual'}]
}
df = sf.to_pandas_dataframe(report_id, metadata)
可以动态添加列、过滤器、排序等(有关报告执行同步的文档)。该方法to_pandas_dataframe
适用于带有详细信息的普通表格报表,并且可以选择使用一个总计和不超过一个级别的小计。可以从更复杂的报告中检索数据(请参阅有关解码事实图或备忘单的文档),但它没有实现,因为在运行之前通过元数据参数动态删除它们更容易。
只能报告 2000 条详细数据行。可以使用多个带有过滤器的请求来查看所有数据。