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transfer_fields.py
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import logging
import os
from time import sleep
from lxml import etree
import requests
import numpy as np
from lxml.etree import Element
from service import transfer_service, table_reader_service
alma_api_base_url = 'https://api-eu.hosted.exlibrisgroup.com/almaws/v1'
def get_mms_ids(table):
api_key = os.environ['ALMA_SCRIPT_API_KEY']
mms_ids = []
for index, row in table.iterrows():
sleep(0.5)
ht_number = row['HT-Nummer'].strip().upper()
url = '{}/bibs?other_system_id={}&apikey={}'.format(alma_api_base_url, ht_number, api_key)
try:
response = requests.get(url=url, headers={'Accept': 'application/json'})
response.encoding = 'utf-8'
# Wenn die Abfrage erfolgreich war, das neue Bestellobjekt erzeugen
if response.status_code == 200:
json = response.json()
mms_ids.append(json['bib'][0]['mms_id'])
else:
mms_ids.append('')
logging.warning('could not get MMS ID from API - response was not 200')
except:
mms_ids.append('')
logging.warning('could not get MMS ID from API - error upon connection')
table['MMS-ID'] = np.array(mms_ids)
return table
def get_holding_ids(table):
api_key = os.environ['ALMA_SCRIPT_API_KEY']
holding_ids = []
for index, row in table.iterrows():
mms_id = row['MMS-ID'].strip()
if mms_id == '':
holding_ids.append('')
logging.warning('no MMS ID given for ' + row['HT-Nummer'])
continue
sub_library = row['OWN'].strip().upper()
url = '{}/bibs/{}/holdings?apikey={}'.format(alma_api_base_url, mms_id, api_key)
try:
response = requests.get(url=url, headers={'Accept': 'application/json'})
response.encoding = 'utf-8'
# Wenn die Abfrage erfolgreich war, das neue Bestellobjekt erzeugen
if response.status_code == 200:
json = response.json()
holdings_list = json['holding']
found = False
logging.debug('checking for library ' + sub_library)
logging.debug('found libraries:')
for holding in holdings_list:
library = holding['library']['value']
logging.debug(library)
if library == sub_library:
holding_ids.append(holding['holding_id'])
found = True
break
if not found:
holding_ids.append('')
logging.warning('could not get holding ID from API - library not found in holding list')
else:
holding_ids.append('')
logging.warning('could not get holding ID from API - response was not 200')
except:
holding_ids.append('')
logging.warning('could not get MMS ID from API - error upon connection')
table['Holding-ID'] = np.array(holding_ids)
return table
def process_holdings(table):
api_key = os.environ['ALMA_SCRIPT_API_KEY']
holding_ids = []
for index, row in table.iterrows():
mms_id = row['MMS-ID'].strip()
if mms_id == '':
holding_ids.append('')
logging.warning('no MMS ID given for ' + row['HT-Nummer'])
continue
url = '{}/bibs/{}/holdings?apikey={}'.format(alma_api_base_url, mms_id, api_key)
response = requests.get(url=url, headers={'Accept': 'application/json'})
response.encoding = 'utf-8'
# Wenn die Abfrage erfolgreich war, das neue Bestellobjekt erzeugen
if response.status_code == 200:
json = response.json()
holdings_list = json['holding']
found = False
for holding in holdings_list:
print(holding['library']['value'])
if holding['library']['value'] != 'UNASSIGNED':
delete_fields(mms_id, holding['holding_id'], '852', 'z')
found = True
if not found:
logging.warning('could not get holding ID from API - library not found in holding list')
else:
logging.warning('could not get holding ID from API - response was not 200')
return table
def delete_fields(mms_id, holding_id, field, sub_field):
api_key = os.environ['ALMA_SCRIPT_API_KEY']
url = '{}/bibs/{}/holdings/{}?apikey={}'.format(alma_api_base_url, mms_id, holding_id, api_key)
print(url)
try:
response = requests.get(url=url, headers={'Accept': 'application/xml'})
response.encoding = 'utf-8'
# Wenn die Abfrage erfolgreich war, das neue Bestellobjekt erzeugen
if response.status_code == 200:
response_xml = etree.fromstring(response.content)
xpath = "//record/datafield[@tag=\'{}\']/subfield[@code=\'{}\']".format(field, sub_field)
changed = False
for bad in response_xml.xpath(xpath):
bad.getparent().remove(bad)
changed = True
if changed:
update = requests.put(url=url, data=etree.tostring(response_xml),
headers={'Content-Type': 'application/xml', 'Accept': 'application/xml'})
# Die Kodierung der Antwort auf UTF-8 festlegen
update.encoding = 'utf-8'
# Prüfen, ob Anfrage erfolgreich war und alles in die Log-Datei schreiben
if update.status_code == 200:
logging.info('succesfully updated holding with MMS-ID {} and holding-ID {}'.format(mms_id, holding_id))
else:
logging.error('problem updating holding with MMS-ID {} and holding-ID {}: {}'.format(mms_id, holding_id, update.text))
print(etree.tostring(response_xml, pretty_print=True, xml_declaration=True))
except KeyError:
logging.error('could not connect to alma api.')
def transfer_field(table, project):
comment = []
api_key = os.environ['ALMA_SCRIPT_API_KEY']
source_fields = ['Feld 125b.1', 'Feld 125b.2', 'Feld 125b.3', 'Feld 125b.4', 'Feld 125b.5']
for index, row in table.iterrows():
contents = []
mms_id = row['MMS-ID'].strip()
if mms_id == '':
comment.append('')
logging.warning('no MMS ID given for ' + row['HT-Nummer'])
continue
holding_id = row['Holding-ID'].strip()
url = '{}/bibs/{}/holdings/{}?apikey={}'.format(alma_api_base_url, mms_id, holding_id, api_key)
print(url)
try:
# response = requests.get(url=url, headers={'Accept': 'application/xml'})
# response.encoding = 'utf-8'
# Wenn die Abfrage erfolgreich war, das neue Bestellobjekt erzeugen
# if response.status_code == 200:
# response_xml = etree.fromstring(response.content)
for field in source_fields:
field_value = row[field]
if type(field_value) == str:
print(field_value)
datafield = Element('datafield', ind1=project.target_indicator_1,
ind2=project.target_indicator_2, tag=project.target_field)
subfield = Element('subfield', code=project.target_subfield)
subfield.text = field_value
datafield.append(subfield)
# datafield = construct_element(field_value, project)
# print(etree.tostring(datafield, pretty_print=True))
except:
comment.append('could not update record - error upon connection')
logging.warning('could not update record - error upon connection')
# table['Kommentar'] = np.array(comment)
return table
def construct_element(field_text, project):
datafield = Element('datafield', ind1=project.target_indicator_1, ind2=project.target_indicator_2, tag=project.target_field)
subfield = Element('subfield', code=project.target_subfield)
subfield.text=field_text
datafield.append(subfield)
return datafield
def run_project(project):
log_file = 'data/output/transfer_{}.log'.format(project)
for handler in logging.root.handlers[:]:
logging.root.removeHandler(handler)
# den Logger konfigurieren (Dateinamen, Level)
logging.basicConfig(format='%(asctime)s %(levelname)-8s %(message)s', filename=log_file, level=logging.DEBUG)
logging.info('starting project {}'.format(project))
transfer_project = transfer_service.load_project(project)
table = table_reader_service.read_transfer_table(transfer_project)
# table = get_mms_ids(table)
# table = get_holding_ids(table)
table = transfer_field(table, project)
table.to_excel('result.xlsx')
if __name__ == '__main__':
# projects = ['field_125']
projects = ['delete_852_z']
for project in projects:
table = table_reader_service.read_table(project)
get_mms_ids(table)
process_holdings(table)
logging.info('finished')