veekun_pokedex/scripts/migration-i18n.py

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# Encoding: UTF-8
"""Moves/transforms values in CSVs in an ad-hoc way, based mainly on column name
Auto-creates identifiers from names
Auto-creates names from identifiers
Copies IDs for foreign keys
Creates autoincrement-style IDs when missing
Sets text language to 9 (en), except when it sets to 1 (jp)
And looks good doing it!
"""
import csv
import re
import os
from StringIO import StringIO
from collections import namedtuple, defaultdict
from sqlalchemy.orm import class_mapper
from pokedex.db import tables, load
english_id = 9
japanese_id = 1
bw_version_group_id = 11
dir = load.get_default_csv_dir()
def tuple_key(tup):
"""Return a sort key for mixed int/string tuples.
Strings sort first.
"""
def generator():
for item in tup:
try:
yield (1, int(item))
except ValueError:
yield (0, item)
return tuple(generator())
class MakeFieldFuncs:
"""Various ways to get a new value from the old one"""
@staticmethod
def copy(field_name, source, **kwargs):
"""Plain copy"""
return source[field_name]
@staticmethod
def main(field_name, source, **kwargs):
"""Populate aux table from the main table"""
return source[field_name]
@staticmethod
def Main(field_name, source, **kwargs):
"""Capitalize"""
return source[field_name].capitalize()
@staticmethod
def ident(source, **kwargs):
"""Craft an identifier from the 'identifier' or 'name' column"""
return name2ident(source.get('identifier', source.get('name')))
@staticmethod
def Name(source, **kwargs):
"""Capitalize the name (or identifier) column"""
name = source.get('name', source.get('identifier', None))
name = ' '.join(word.capitalize() for word in name.split(' '))
return name
@staticmethod
def f_id(source, **kwargs):
"""Capitalize the identifier column"""
return source['identifier'].capitalize()
@staticmethod
def name(source, **kwargs):
"""Get the original name"""
return source['name']
@staticmethod
def newid(i, source, **kwargs):
"""Assign a new "auto-incremented" id"""
source['id'] = i # hack to make srcid work
return i
@staticmethod
def en(source, **kwargs):
"""Assign the value for English -- unless it's Japanese"""
if source.get('version_group_id', None) == str(bw_version_group_id):
return japanese_id
return english_id
@staticmethod
def srcid(source, field_name, **kwargs):
"""The original table's id"""
try:
return source['id']
except KeyError:
if field_name == 'pokemon_form_group_id':
# This one reuses another table's ID
return source['pokemon_id']
else:
raise
def name2ident(name):
ident = name.decode('utf-8').lower()
ident = ident.replace(u'+', ' plus ')
ident = re.sub(u'[ _]+', u'-', ident)
ident = re.sub(u'[\'./;(),:]', u'', ident)
ident = ident.replace(u'é', 'e')
ident = ident.replace(u'', '-f')
ident = ident.replace(u'', '-m')
if ident in ('???', '????'):
ident = 'unknown'
elif ident == '!':
ident = 'exclamation'
elif ident == '?':
ident = 'question'
for c in ident:
assert c in "abcdefghijklmnopqrstuvwxyz0123456789-", repr(ident)
return ident
FieldSpec = namedtuple('FieldSpec', 'out name func')
def main():
for table in sorted(tables.all_tables(), key=lambda t: t.__name__):
datafilename = dir + '/' + table.__tablename__ + '.csv'
classname = table.__name__
if hasattr(table, 'object_table'):
# This is an auxilliary table; it'll be processed with the main one
continue
else:
print "%s: %s" % (classname, table.__tablename__)
with open(datafilename) as datafile:
datacsv = csv.reader(datafile, lineterminator='\n')
orig_fields = datacsv.next()
columns = class_mapper(table).c
new_fields = []
main_out = []
outputs = {datafilename: main_out}
name_out = None
srcfiles = [datafilename]
# Set new_fields to a list of FieldSpec object, one for each field we want in the csv
for column in columns:
name = column.name
if name == 'identifier':
new_fields.append(FieldSpec(datafilename, column.name, MakeFieldFuncs.ident))
elif name in orig_fields:
new_fields.append(FieldSpec(datafilename, column.name, MakeFieldFuncs.copy))
elif name == 'id':
new_fields.append(FieldSpec(datafilename, column.name, MakeFieldFuncs.newid))
elif name == 'language_id':
new_fields.insert(2, FieldSpec(datafilename, column.name, MakeFieldFuncs.en))
else:
raise AssertionError(name)
# Remember headers
headers = {datafilename: list(field.name for field in new_fields)}
# Pretty prnt :)
for field in new_fields:
print ' [{0.func.func_name:5}] {0.name}'.format(field)
# Do pretty much the same for aux tables
aux_tables = []
for attrname in 'text_table prose_table'.split():
aux_table = getattr(table, attrname, None)
if aux_table:
aux_datafilename = dir + '/' + aux_table.__tablename__ + '.csv'
print " %s: %s" % (aux_table.__name__, aux_table.__tablename__)
srcfiles.append(datafilename)
aux_tables.append(aux_table)
columns = class_mapper(aux_table).c
aux_out = []
outputs[aux_datafilename] = aux_out
aux_fields = []
for column in columns:
name = column.name
if name == 'language_id':
aux_fields.insert(1, FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.en))
elif name == 'name' and table.__name__ == 'ItemFlag':
aux_fields.append(FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.f_id))
elif name == 'description' and table.__name__ == 'ItemFlag':
aux_fields.append(FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.name))
elif name in orig_fields and name == 'name' and table.__name__ in 'PokemonColor ContestType BerryFirmness'.split():
# Capitalize these names
aux_fields.append(FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.Name))
elif name in orig_fields and name in 'color flavor'.split() and table.__name__ == 'ContestType':
aux_fields.append(FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.Main))
elif name in orig_fields:
aux_fields.append(FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.main))
elif name == table.__singlename__ + '_id':
aux_fields.append(FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.srcid))
elif name == 'name':
aux_fields.append(FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.Name))
elif name == 'lang_id':
aux_fields.append(FieldSpec(aux_datafilename, column.name, MakeFieldFuncs.srcid))
else:
print orig_fields
raise AssertionError(name)
if name == 'name':
# If this table contains the name, remember that
name_fields = aux_fields
name_out = aux_out
# Sort aux tables nicely
def key(f):
if f.func == MakeFieldFuncs.srcid:
return 0
elif f.name == 'language_id':
return 1
elif f.name == 'name':
return 2
else:
return 10
aux_fields.sort(key=key)
new_fields += aux_fields
headers[aux_datafilename] = list(field.name for field in aux_fields)
# Pretty print :)
for field in aux_fields:
print ' [{0.func.func_name:5}] {0.name}'.format(field)
# Do nothing if the table's the same
if all(field.func == MakeFieldFuncs.copy for field in new_fields):
print u' → skipping'
continue
# Otherwise read the file
# outputs will be a (filename -> list of rows) dict
print u' → reading'
for autoincrement_id, src_row in enumerate(datacsv, start=1):
row = dict(zip(orig_fields, src_row))
new_rows = defaultdict(list)
for field in new_fields:
new_rows[field.out].append(field.func(
source=row,
field_name=field.name,
i=autoincrement_id,
))
for name, row in new_rows.items():
outputs[name].append(row)
# If there was a _names table, read that and append it to the
# aux table that has names
try:
name_datafilename = dir + '/' + table.__singlename__ + '_names.csv'
name_file = open(name_datafilename)
except (AttributeError, IOError):
pass
else:
print u' → reading foreign names'
with name_file:
namecsv = csv.reader(name_file, lineterminator='\n')
src_fields = namecsv.next()
obj_id_fieldname = table.__singlename__ + '_id'
assert src_fields == [obj_id_fieldname, 'language_id', 'name']
for name_row in namecsv:
name_dict = dict(zip(src_fields, name_row))
row = []
for field in name_fields:
row.append(name_dict.get(field.name, ''))
name_out.append(row)
os.unlink(name_datafilename)
# For all out files, write a header & sorted rows
print u' → writing'
for filename, rows in outputs.items():
with open(filename, 'w') as outfile:
outcsv = csv.writer(outfile, lineterminator='\n')
outcsv.writerow(headers[filename])
rows.sort(key=tuple_key)
for row in rows:
outcsv.writerow(row)
if __name__ == '__main__':
main()