seitime-frappe/py/webnotes/model/docfield.py
2012-04-03 18:15:17 +05:30

69 lines
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2.5 KiB
Python

# Copyright (c) 2012 Web Notes Technologies Pvt Ltd (http://erpnext.com)
#
# MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
# OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
"""docfield utililtes"""
import webnotes
def rename(doctype, fieldname, newname):
"""rename docfield"""
df = webnotes.conn.sql("""select * from tabDocField where parent=%s and fieldname=%s""",
(doctype, fieldname), as_dict=1)
if not df:
return
df = df[0]
if webnotes.conn.get_value('DocType', doctype, 'issingle'):
update_single(df, newname)
else:
update_table(df, newname)
update_parent_field(df, newname)
def update_single(f, new):
"""update in tabSingles"""
webnotes.conn.begin()
webnotes.conn.sql("""update tabSingles set field=%s where doctype=%s and field=%s""",
(new, f['parent'], f['fieldname']))
webnotes.conn.commit()
def update_table(f, new):
"""update table"""
query = get_change_column_query(f, new)
if query:
webnotes.conn.sql(query)
def update_parent_field(f, new):
"""update 'parentfield' in tables"""
if f['fieldtype']=='Table':
webnotes.conn.begin()
webnotes.conn.sql("""update `tab%s` set parentfield=%s where parentfield=%s""" \
% (f['options'], '%s', '%s'), (new, f['fieldname']))
webnotes.conn.commit()
def get_change_column_query(f, new):
"""generate change fieldname query"""
desc = webnotes.conn.sql("desc `tab%s`" % f['parent'])
for d in desc:
if d[0]== f['fieldname']:
return 'alter table `tab%s` change `%s` `%s` %s' % \
(f['parent'], f['fieldname'], new, d[1])