def parse_line(self, line):
columns = line.split(self.ING_COL_DELIMITER)
# Check to see whether we have anything to work with
if columns[self.ING_COL_ID] == '':
return True # Skip empty lines
# Set total columns number if not set
# and get the H-Reference IDs
if self.total_cols == 0:
self.total_cols = len(columns)
h_cols_count = self.total_cols - self.ING_COL_COUNT
if h_cols_count <= 0:
self.error = 'Number of columns are fewer then expected, must at least be %d' % (
self.ING_COL_COUNT + 1)
return False
else:
for col_number in range(self.ING_COL_COUNT,
(self.ING_COL_COUNT + h_cols_count)):
hreference_id = columns[col_number].strip()
if hreference_id != '':
self.h_references.append(hreference_id)
# First line is not further read
return True
# Check columns count
if len(columns) != self.total_cols:
self.error = 'Number of columns are not consistent, expected %d columns but got %d' % (
self.total_cols, len(columns))
return False
# Retrieve/Create the ingredient
ID = int(columns[self.ING_COL_ID].strip())
if ID > 0:
ing = Ingredient.load(ID)
else:
self.error = 'The ID must be a positive integer instead got %d' % ID
return False
# INCI Names
if columns[self.ING_COL_INCI].strip() != '':
inci_names = columns[self.ING_COL_INCI].strip().split(
self.ING_IN_COL_DELIMITER)
for name in inci_names:
name = name.strip().lower()
if name != '' and name not in ing.inci_names:
ing.inci_names.append(name)
# CAS Numbers
if columns[self.ING_COL_CAS].strip() != '':
cas_numbers = columns[self.ING_COL_CAS].strip().split(
self.ING_IN_COL_DELIMITER)
for number in cas_numbers:
number = number.strip()
if number != '' and number not in ing.cas_numbers:
ing.cas_numbers.append(number)
# EC Numbers
if columns[self.ING_COL_EC].strip() != '':
ec_numbers = columns[self.ING_COL_EC].strip().split(
self.ING_IN_COL_DELIMITER)
for number in ec_numbers:
number = number.strip()
if number != '' and number not in ing.ec_numbers:
ing.ec_numbers.append(number)
# IUPAC Names
if columns[self.ING_COL_IUPAC].strip() != '':
iupac_names = columns[self.ING_COL_IUPAC].strip().split(
self.ING_IN_COL_DELIMITER)
for name in iupac_names:
name = name.strip().lower()
if name != '' and name not in ing.iupac_names:
ing.iupac_names.append(name)
# Aliases
if columns[self.ING_COL_ALIAS].strip() != '':
aliases = columns[self.ING_COL_ALIAS].strip().split(
self.ING_IN_COL_DELIMITER)
for alias in aliases:
alias = alias.strip().lower()
if alias != '' and alias not in ing.aliases:
ing.aliases.append(alias)
# E Numbers
if columns[self.ING_COL_E].strip() != '':
e_numbers = columns[self.ING_COL_E].strip().split(
self.ING_IN_COL_DELIMITER)
for e_no in e_numbers:
e_no = e_no.strip()
if e_no != '' and e_no not in ing.e_numbers:
ing.e_numbers.append(e_no)
h_cols_count = self.total_cols - self.ING_COL_COUNT
ref_idx = 0
for col_number in range(self.ING_COL_COUNT,
(self.ING_COL_COUNT + h_cols_count)):
if ref_idx >= len(self.h_references):
continue
if not self.parse_hstatements(columns[col_number].strip(), ing,
self.h_references[ref_idx]):
return False
ref_idx = ref_idx + 1
ing.creator = self.user.key
ing.put()
return True
