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import re
def javascript_string_escape(input):
"""Escapes the ' " and \ characters in a string so
it can be embedded inside a dynamically generated string."""
return re.sub(r'[\'\"\\]',
lambda match: "\\%s" % match.group(),
input)
def setup_mv_fields(field, fieldname):
"""Given a field (must be a list) and field name, convert that
field into a list of dictionaries of the form:
[ { fieldname : v1}, { fieldname : v2 }, .. ]
This is how we pre-fill values for multi-valued fields.
"""
mvlist = []
if field:
for v in field:
if v:
mvlist.append({ fieldname : v } )
if len(mvlist) == 0:
# We need to return an empty value so something can be
# displayed on the edit page. Otherwise only an Add link
# will show, not an empty field.
mvlist.append({ fieldname : '' } )
return mvlist
def fix_incoming_fields(fields, fieldname, multifieldname):
"""This is called by the update() function. It takes the incoming
list of dictionaries and converts it into back into the original
field, then removes the multiple field.
"""
fields[fieldname] = []
for i in range(len(fields[multifieldname])):
fields[fieldname].append(fields[multifieldname][i][fieldname])
del(fields[multifieldname])
return fields
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