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# Source Code for Module translate.storage.statsdb

      1  #!/usr/bin/env python
      2  # -*- coding: utf-8 -*-
      3  #
      4  # Copyright 2007-2009 Zuza Software Foundation
      5  #
      6  # This file is part of the Translate Toolkit.
      7  #
      8  # This program is free software; you can redistribute it and/or modify
      9  # it under the terms of the GNU General Public License as published by
     10  # the Free Software Foundation; either version 2 of the License, or
     11  # (at your option) any later version.
     12  #
     13  # This program is distributed in the hope that it will be useful,
     14  # but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16  # GNU General Public License for more details.
     17  #
     18  # You should have received a copy of the GNU General Public License
     19  # along with this program; if not, see <http://www.gnu.org/licenses/>.
     20
     21
     22  """Module to provide a cache of statistics in a database.
     23
     24  @organization: Zuza Software Foundation
     25  @copyright: 2007 Zuza Software Foundation
     26  @license: U{GPL <http://www.fsf.org/licensing/licenses/gpl.html>}
     27  """
     28
     29  from UserDict import UserDict
     30
     31  from translate import __version__ as toolkitversion
     32  from translate.storage import factory
     33  from translate.misc.multistring import multistring
     34  from translate.lang.common import Common
     35
     36  try:
     37      from sqlite3 import dbapi2
     38  except ImportError:
     39      from pysqlite2 import dbapi2
     40  import os.path
     41  import re
     42  import sys
     43  import stat
     44  import thread
     45
     46  kdepluralre = re.compile("^_n: ")
     47  brtagre = re.compile("<br\s*?/?>")
     48  xmltagre = re.compile("<[^>]+>")
     49  numberre = re.compile("\\D\\.\\D")
     50
     51  state_strings = {0: "untranslated", 1: "translated", 2: "fuzzy"}
     52
     53 -def wordcount(string):
     54      # TODO: po class should understand KDE style plurals
     55      string = kdepluralre.sub("", string)
     56      string = brtagre.sub("\n", string)
     57      string = xmltagre.sub("", string)
     58      string = numberre.sub(" ", string)
     59      #TODO: This should still use the correct language to count in the target
     60      #language
     61      return len(Common.words(string))
     62
     63 -def wordsinunit(unit):
     64      """Counts the words in the unit's source and target, taking plurals into
     65      account. The target words are only counted if the unit is translated."""
     66      (sourcewords, targetwords) = (0, 0)
     67      if isinstance(unit.source, multistring):
     68          sourcestrings = unit.source.strings
     69      else:
     70          sourcestrings = [unit.source or ""]
     71      for s in sourcestrings:
     72          sourcewords += wordcount(s)
     73      if not unit.istranslated():
     74          return sourcewords, targetwords
     75      if isinstance(unit.target, multistring):
     76          targetstrings = unit.target.strings
     77      else:
     78          targetstrings = [unit.target or ""]
     79      for s in targetstrings:
     80          targetwords += wordcount(s)
     81      return sourcewords, targetwords
     82
     83 -class Record(UserDict):
     84 -    def __init__(self, record_keys, record_values=None, compute_derived_values = lambda x: x):
     85          if record_values == None:
     86              record_values = (0 for _i in record_keys)
     87          self.record_keys = record_keys
     88          self.data = dict(zip(record_keys, record_values))
     89          self._compute_derived_values = compute_derived_values
     90          self._compute_derived_values(self)
     91
     92 -    def to_tuple(self):
     93          return tuple(self[key] for key in self.record_keys)
     94
     95 -    def __add__(self, other):
     96          result = Record(self.record_keys)
     97          for key in self.keys():
     98              result[key] = self[key] + other[key]
     99          self._compute_derived_values(self)
    100          return result
    101
    102 -    def __sub__(self, other):
    103          result = Record(self.record_keys)
    104          for key in self.keys():
    105              result[key] = self[key] - other[key]
    106          self._compute_derived_values(self)
    107          return result
    108
    109 -    def as_string_for_db(self):
    110          return ",".join([repr(x) for x in self.to_tuple()])
    111
    112 -def transaction(f):
    113      """Modifies f to commit database changes if it executes without exceptions.
    114      Otherwise it rolls back the database.
    115
    116      ALL publicly accessible methods in StatsCache MUST be decorated with this
    117      decorator.
    118      """
    119
    120      def decorated_f(self, *args, **kwargs):
    121          try:
    122              result = f(self, *args, **kwargs)
    123              self.con.commit()
    124              return result
    125          except:
    126              # If ANY exception is raised, we're left in an
    127              # uncertain state and we MUST roll back any changes to avoid getting
    128              # stuck in an inconsistent state.
    129              if self.con:
    130                  self.con.rollback()
    131              raise
    132      return decorated_f
    133
    134  UNTRANSLATED, TRANSLATED, FUZZY = 0, 1, 2
    135 -def statefordb(unit):
    136      """Returns the numeric database state for the unit."""
    137      if unit.istranslated():
    138          return TRANSLATED
    139      if unit.isfuzzy() and unit.target:
    140          return FUZZY
    141      return UNTRANSLATED
    142
    143 -class FileTotals(object):
    144      keys = ['translatedsourcewords',
    145              'fuzzysourcewords',
    146              'untranslatedsourcewords',
    147              'translated',
    148              'fuzzy',
    149              'untranslated',
    150              'translatedtargetwords']
    151
    152 -    def db_keys(self):
    153          return ",".join(self.keys)
    154
    155 -    def __init__(self, cur):
    156          self.cur = cur
    157          self.cur.execute("""
    158              CREATE TABLE IF NOT EXISTS filetotals(
    159                  fileid                  INTEGER PRIMARY KEY AUTOINCREMENT,
    160                  translatedsourcewords   INTEGER NOT NULL,
    161                  fuzzysourcewords        INTEGER NOT NULL,
    162                  untranslatedsourcewords INTEGER NOT NULL,
    163                  translated              INTEGER NOT NULL,
    164                  fuzzy                   INTEGER NOT NULL,
    165                  untranslated            INTEGER NOT NULL,
    166                  translatedtargetwords   INTEGER NOT NULL);""")
    167
    168 -    def new_record(cls, state_for_db=None, sourcewords=None, targetwords=None):
    169          record = Record(cls.keys, compute_derived_values = cls._compute_derived_values)
    170          if state_for_db is not None:
    171              if state_for_db is UNTRANSLATED:
    172                  record['untranslated'] = 1
    173                  record['untranslatedsourcewords'] = sourcewords
    174              if state_for_db is TRANSLATED:
    175                  record['translated'] = 1
    176                  record['translatedsourcewords'] = sourcewords
    177                  record['translatedtargetwords'] = targetwords
    178              elif state_for_db is FUZZY:
    179                  record['fuzzy'] = 1
    180                  record['fuzzysourcewords'] = sourcewords
    181          return record
    182
    183      new_record = classmethod(new_record)
    184
    185 -    def _compute_derived_values(cls, record):
    186          record["total"]            = record["untranslated"] + \
    187                                       record["translated"] + \
    188                                       record["fuzzy"]
    189          record["totalsourcewords"] = record["untranslatedsourcewords"] + \
    190                                       record["translatedsourcewords"] + \
    191                                       record["fuzzysourcewords"]
    192          record["review"]           = 0
    193      _compute_derived_values = classmethod(_compute_derived_values)
    194
    195 -    def __getitem__(self, fileid):
    196          result = self.cur.execute("""
    197              SELECT %(keys)s
    198              FROM   filetotals
    199              WHERE  fileid=?;""" % {'keys': self.db_keys()}, (fileid,))
    200          return Record(FileTotals.keys, result.fetchone(), self._compute_derived_values)
    201
    202 -    def __setitem__(self, fileid, record):
    203          self.cur.execute("""
    204              INSERT OR REPLACE into filetotals
    205              VALUES (%(fileid)d, %(vals)s);
    206          """ % {'fileid': fileid, 'vals': record.as_string_for_db()})
    207
    208 -    def __delitem__(self, fileid):
    209          self.cur.execute("""
    210              DELETE FROM filetotals
    211              WHERE fileid=?;
    212          """,  (fileid,))
    213
    214 -def emptyfiletotals():
    215      """Returns a dictionary with all statistics initalised to 0."""
    216      return FileTotals.new_record()
    217
    218 -def emptyfilechecks():
    219      return {}
    220
    221 -def emptyfilestats():
    222      return {"total": [], "translated": [], "fuzzy": [], "untranslated": []}
    223
    224 -def emptyunitstats():
    225      return {"sourcewordcount": [], "targetwordcount": []}
    226
    227  # We allow the caller to specify which value to return when errors_return_empty
    228  # is True. We do this, since Poolte wants None to be returned when it calls
    229  # get_mod_info directly, whereas we want an integer to be returned for
    230  # uses of get_mod_info within this module.
    231  # TODO: Get rid of empty_return when Pootle code is improved to not require
    232  #       this.
    233 -def get_mod_info(file_path):
    234      file_stat = os.stat(file_path)
    235      assert not stat.S_ISDIR(file_stat.st_mode)
    236      return file_stat.st_mtime, file_stat.st_size
    237
    238 -def suggestion_extension():
    239      return os.path.extsep + 'pending'
    240
    241 -def suggestion_filename(filename):
    242      return filename + suggestion_extension()
    243
    244  # ALL PUBLICLY ACCESSIBLE METHODS MUST BE DECORATED WITH THE transaction DECORATOR.
    245 -class StatsCache(object):
    246      """An object instantiated as a singleton for each statsfile that provides
    247      access to the database cache from a pool of StatsCache objects."""
    248      _caches = {}
    249      defaultfile = None
    250      con = None
    251      """This cache's connection"""
    252      cur = None
    253      """The current cursor"""
    254
    255 -    def __new__(cls, statsfile=None):
    256          current_thread = thread.get_ident()
    257          def make_database(statsfile):
    258              def connect(cache):
    259                  cache.con = dbapi2.connect(statsfile)
    260                  cache.cur = cache.con.cursor()
    261
    262              def clear_old_data(cache):
    263                  try:
    264                      cache.cur.execute("""SELECT toolkitbuild FROM files""")
    265                      val = cache.cur.fetchone()
    266                      # If the database is empty, we have no idea whether its layout
    267                      # is correct, so we might as well delete it.
    268                      if val is None or val[0] < toolkitversion.build:
    269                          cache.con.close()
    270                          del cache
    271                          os.unlink(statsfile)
    272                          return True
    273                      return False
    274                  except dbapi2.OperationalError:
    275                      return False
    276
    277              cache = cls._caches.setdefault(current_thread, {})[statsfile] = object.__new__(cls)
    278              connect(cache)
    279              if clear_old_data(cache):
    280                  connect(cache)
    281              cache.create()
    282              return cache
    283
    284          if not statsfile:
    285              if not cls.defaultfile:
    286                  userdir = os.path.expanduser("~")
    287                  cachedir = None
    288                  if os.name == "nt":
    289                      cachedir = os.path.join(userdir, "Translate Toolkit")
    290                  else:
    291                      cachedir = os.path.join(userdir, ".translate_toolkit")
    292                  if not os.path.exists(cachedir):
    293                      os.mkdir(cachedir)
    294                  cls.defaultfile = os.path.realpath(os.path.join(cachedir, "stats.db"))
    295              statsfile = cls.defaultfile
    296          else:
    297              statsfile = os.path.realpath(statsfile)
    298          # First see if a cache for this file already exists:
    299          if current_thread in cls._caches and statsfile in cls._caches[current_thread]:
    300              return cls._caches[current_thread][statsfile]
    301          # No existing cache. Let's build a new one and keep a copy
    302          return make_database(statsfile)
    303
    304      @transaction
    305 -    def create(self):
    306          """Create all tables and indexes."""
    307          self.file_totals = FileTotals(self.cur)
    308
    309          self.cur.execute("""CREATE TABLE IF NOT EXISTS files(
    310              fileid INTEGER PRIMARY KEY AUTOINCREMENT,
    311              path VARCHAR NOT NULL UNIQUE,
    312              st_mtime INTEGER NOT NULL,
    313              st_size INTEGER NOT NULL,
    314              toolkitbuild INTEGER NOT NULL);""")
    315
    316          self.cur.execute("""CREATE UNIQUE INDEX IF NOT EXISTS filepathindex
    317              ON files (path);""")
    318
    319          self.cur.execute("""CREATE TABLE IF NOT EXISTS units(
    320              id INTEGER PRIMARY KEY AUTOINCREMENT,
    321              unitid VARCHAR NOT NULL,
    322              fileid INTEGER NOT NULL,
    323              unitindex INTEGER NOT NULL,
    324              source VARCHAR NOT NULL,
    325              target VARCHAR,
    326              state INTEGER,
    327              sourcewords INTEGER,
    328              targetwords INTEGER);""")
    329
    330          self.cur.execute("""CREATE INDEX IF NOT EXISTS fileidindex
    331              ON units(fileid);""")
    332
    333          self.cur.execute("""CREATE TABLE IF NOT EXISTS checkerconfigs(
    334              configid INTEGER PRIMARY KEY AUTOINCREMENT,
    335              config VARCHAR);""")
    336
    337          self.cur.execute("""CREATE INDEX IF NOT EXISTS configindex
    338              ON checkerconfigs(config);""")
    339
    340          self.cur.execute("""CREATE TABLE IF NOT EXISTS uniterrors(
    341              errorid INTEGER PRIMARY KEY AUTOINCREMENT,
    342              unitindex INTEGER NOT NULL,
    343              fileid INTEGER NOT NULL,
    344              configid INTEGER NOT NULL,
    345              name VARCHAR NOT NULL,
    346              message VARCHAR);""")
    347
    348          self.cur.execute("""CREATE INDEX IF NOT EXISTS uniterrorindex
    349              ON uniterrors(fileid, configid);""")
    350
    351      @transaction
    352 -    def _getfileid(self, filename, check_mod_info=True, store=None):
    353          """return fileid representing the given file in the statscache.
    354
    355          if file not in cache or has been updated since last record
    356          update, recalculate stats.
    357
    358          optional argument store can be used to avoid unnessecary
    359          reparsing of already loaded translation files.
    360
    361          store can be a TranslationFile object or a callback that returns one.
    362          """
    363          realpath = os.path.realpath(filename)
    364          self.cur.execute("""SELECT fileid, st_mtime, st_size FROM files
    365                  WHERE path=?;""", (realpath,))
    366          filerow = self.cur.fetchone()
    367          mod_info = get_mod_info(realpath)
    368          if filerow:
    369              fileid = filerow[0]
    370              if not check_mod_info:
    371                  # Update the mod_info of the file
    372                  self.cur.execute("""UPDATE files
    373                          SET st_mtime=?, st_size=?
    374                          WHERE fileid=?;""", (mod_info[0], mod_info[1], fileid))
    375                  return fileid
    376              if (filerow[1], filerow[2]) == mod_info:
    377                  return fileid
    378
    379          # file wasn't in db at all, lets recache it
    380          if callable(store):
    381              store = store()
    382          else:
    383              store = store or factory.getobject(realpath)
    384
    385          return self._cachestore(store, realpath, mod_info)
    386
    387 -    def _getstoredcheckerconfig(self, checker):
    388          """See if this checker configuration has been used before."""
    389          config = str(checker.config.__dict__)
    390          self.cur.execute("""SELECT configid, config FROM checkerconfigs WHERE
    391              config=?;""", (config,))
    392          configrow = self.cur.fetchone()
    393          if not configrow or configrow[1] != config:
    394              return None
    395          else:
    396              return configrow[0]
    397
    398      @transaction
    399 -    def _cacheunitstats(self, units, fileid, unitindex=None, file_totals_record=FileTotals.new_record()):
    400          """Cache the statistics for the supplied unit(s)."""
    401          unitvalues = []
    402          for index, unit in enumerate(units):
    403              if unit.istranslatable():
    404                  sourcewords, targetwords = wordsinunit(unit)
    405                  if unitindex:
    406                      index = unitindex
    407                  # what about plurals in .source and .target?
    408                  unitvalues.append((unit.getid(), fileid, index, \
    409                                  unit.source, unit.target, \
    410                                  sourcewords, targetwords, \
    411                                  statefordb(unit)))
    412                  file_totals_record = file_totals_record + FileTotals.new_record(statefordb(unit), sourcewords, targetwords)
    413          # XXX: executemany is non-standard
    414          self.cur.executemany("""INSERT INTO units
    415              (unitid, fileid, unitindex, source, target, sourcewords, targetwords, state)
    416              values (?, ?, ?, ?, ?, ?, ?, ?);""",
    417              unitvalues)
    418          self.file_totals[fileid] = file_totals_record
    419          if unitindex:
    420              return state_strings[statefordb(units[0])]
    421          return ""
    422
    423      @transaction
    424 -    def _cachestore(self, store, realpath, mod_info):
    425          """Calculates and caches the statistics of the given store
    426          unconditionally."""
    427          self.cur.execute("""DELETE FROM files WHERE
    428              path=?;""", (realpath,))
    429          self.cur.execute("""INSERT INTO files
    430              (fileid, path, st_mtime, st_size, toolkitbuild) values (NULL, ?, ?, ?, ?);""",
    431              (realpath, mod_info[0], mod_info[1], toolkitversion.build))
    432          fileid = self.cur.lastrowid
    433          self.cur.execute("""DELETE FROM units WHERE
    434              fileid=?""", (fileid,))
    435          self._cacheunitstats(store.units, fileid)
    436          return fileid
    437
    438 -    def filetotals(self, filename, store=None):
    439          """Retrieves the statistics for the given file if possible, otherwise
    440          delegates to cachestore()."""
    441          return self.file_totals[self._getfileid(filename, store=store)]
    442
    443      @transaction
    444 -    def _cacheunitschecks(self, units, fileid, configid, checker, unitindex=None):
    445          """Helper method for cachestorechecks() and recacheunit()"""
    446          # We always want to store one dummy error to know that we have actually
    447          # run the checks on this file with the current checker configuration
    448          dummy = (-1, fileid, configid, "noerror", "")
    449          unitvalues = [dummy]
    450          # if we are doing a single unit, we want to return the checknames
    451          errornames = []
    452          for index, unit in enumerate(units):
    453              if unit.istranslatable():
    454                  # Correctly assign the unitindex
    455                  if unitindex:
    456                      index = unitindex
    457                  failures = checker.run_filters(unit)
    458                  for checkname, checkmessage in failures.iteritems():
    459                      unitvalues.append((index, fileid, configid, checkname, checkmessage))
    460                      errornames.append("check-" + checkname)
    461          checker.setsuggestionstore(None)
    462
    463          if unitindex:
    464              # We are only updating a single unit, so we don't want to add an
    465              # extra noerror-entry
    466              unitvalues.remove(dummy)
    467              errornames.append("total")
    468
    469          # XXX: executemany is non-standard
    470          self.cur.executemany("""INSERT INTO uniterrors
    471              (unitindex, fileid, configid, name, message)
    472              values (?, ?, ?, ?, ?);""",
    473              unitvalues)
    474          return errornames
    475
    476      @transaction
    477 -    def _cachestorechecks(self, fileid, store, checker, configid):
    478          """Calculates and caches the error statistics of the given store
    479          unconditionally."""
    480          # Let's purge all previous failures because they will probably just
    481          # fill up the database without much use.
    482          self.cur.execute("""DELETE FROM uniterrors WHERE
    483              fileid=?;""", (fileid,))
    484          self._cacheunitschecks(store.units, fileid, configid, checker)
    485          return fileid
    486
    487 -    def get_unit_stats(self, fileid, unitid):
    488          values = self.cur.execute("""
    489              SELECT   state, sourcewords, targetwords
    490              FROM     units
    491              WHERE    fileid=? AND unitid=?
    492          """, (fileid, unitid))
    493          result = values.fetchone()
    494          if result is not None:
    495              return result
    496          else:
    497              print >> sys.stderr, """WARNING: Database in inconsistent state.
    498              fileid %d and unitid %s have no entries in the table units.""" % (fileid, unitid)
    499              # If values.fetchone() is None, then we return an empty list,
    500              # to make FileTotals.new_record(*self.get_unit_stats(fileid, unitid))
    501              # do the right thing.
    502              return []
    503
    504      @transaction
    505 -    def recacheunit(self, filename, checker, unit):
    506          """Recalculate all information for a specific unit. This is necessary
    507          for updating all statistics when a translation of a unit took place,
    508          for example.
    509
    510          This method assumes that everything was up to date before (file totals,
    511          checks, checker config, etc."""
    512          fileid = self._getfileid(filename, check_mod_info=False)
    513          configid = self._get_config_id(fileid, checker)
    514          unitid = unit.getid()
    515          # get the unit index
    516          totals_without_unit = self.file_totals[fileid] - \
    517                                     FileTotals.new_record(*self.get_unit_stats(fileid, unitid))
    518          self.cur.execute("""SELECT unitindex FROM units WHERE
    519              fileid=? AND unitid=?;""", (fileid, unitid))
    520          unitindex = self.cur.fetchone()[0]
    521          self.cur.execute("""DELETE FROM units WHERE
    522              fileid=? AND unitid=?;""", (fileid, unitid))
    523          state = [self._cacheunitstats([unit], fileid, unitindex, totals_without_unit)]
    524          # remove the current errors
    525          self.cur.execute("""DELETE FROM uniterrors WHERE
    526              fileid=? AND unitindex=?;""", (fileid, unitindex))
    527          if os.path.exists(suggestion_filename(filename)):
    528              checker.setsuggestionstore(factory.getobject(suggestion_filename(filename), ignore=suggestion_extension()))
    529          state.extend(self._cacheunitschecks([unit], fileid, configid, checker, unitindex))
    530          return state
    531
    532 -    def _checkerrors(self, filename, fileid, configid, checker, store):
    533          def geterrors():
    534              self.cur.execute("""SELECT
    535                  name,
    536                  unitindex
    537                  FROM uniterrors WHERE fileid=? and configid=?
    538                  ORDER BY unitindex;""", (fileid, configid))
    539              return self.cur.fetchone(), self.cur
    540
    541          first, cur = geterrors()
    542          if first is not None:
    543              return first, cur
    544
    545          # This could happen if we haven't done the checks before, or the
    546          # file changed, or we are using a different configuration
    547          if callable(store):
    548              store = store()
    549          else:
    550              store = store or factory.getobject(filename)
    551
    552          if os.path.exists(suggestion_filename(filename)):
    553              checker.setsuggestionstore(factory.getobject(suggestion_filename(filename), ignore=suggestion_extension()))
    554          self._cachestorechecks(fileid, store, checker, configid)
    555          return geterrors()
    556
    557 -    def _geterrors(self, filename, fileid, configid, checker, store):
    558          result = []
    559          first, cur = self._checkerrors(filename, fileid, configid, checker, store)
    560          result.append(first)
    561          result.extend(cur.fetchall())
    562          return result
    563
    564      @transaction
    565 -    def _get_config_id(self, fileid, checker):
    566          configid = self._getstoredcheckerconfig(checker)
    567          if configid:
    568              return configid
    569          self.cur.execute("""INSERT INTO checkerconfigs
    570              (configid, config) values (NULL, ?);""",
    571              (str(checker.config.__dict__),))
    572          return self.cur.lastrowid
    573
    574 -    def filechecks(self, filename, checker, store=None):
    575          """Retrieves the error statistics for the given file if possible,
    576          otherwise delegates to cachestorechecks()."""
    577          fileid = self._getfileid(filename, store=store)
    578          configid = self._get_config_id(fileid, checker)
    579          values = self._geterrors(filename, fileid, configid, checker, store)
    580
    581          errors = emptyfilechecks()
    582          for value in values:
    583              if value[1] == -1:
    584                  continue
    585              checkkey = 'check-' + value[0]      #value[0] is the error name
    586              if not checkkey in errors:
    587                  errors[checkkey] = []
    588              errors[checkkey].append(value[1])   #value[1] is the unitindex
    589
    590          return errors
    591
    592 -    def file_fails_test(self, filename, checker, name):
    593          fileid = self._getfileid(filename)
    594          configid = self._get_config_id(fileid, checker)
    595          self._checkerrors(filename, fileid, configid, checker, None)
    596          self.cur.execute("""SELECT
    597              name,
    598              unitindex
    599              FROM uniterrors
    600              WHERE fileid=? and configid=? and name=?;""", (fileid, configid, name))
    601          return self.cur.fetchone() is not None
    602
    603 -    def filestatestats(self, filename, store=None):
    604          """Return a dictionary of unit stats mapping sets of unit
    605          indices with those states"""
    606          stats = emptyfilestats()
    607          fileid = self._getfileid(filename, store=store)
    608
    609          self.cur.execute("""SELECT
    610              state,
    611              unitindex
    612              FROM units WHERE fileid=?
    613              ORDER BY unitindex;""", (fileid,))
    614          values = self.cur.fetchall()
    615
    616          for value in values:
    617              stats[state_strings[value[0]]].append(value[1])
    618              stats["total"].append(value[1])
    619
    620          return stats
    621
    622 -    def filestats(self, filename, checker, store=None):
    623          """Return a dictionary of property names mapping sets of unit
    624          indices with those properties."""
    625          stats = emptyfilestats()
    626          stats.update(self.filechecks(filename, checker, store))
    627          stats.update(self.filestatestats(filename, store))
    628          return stats
    629
    630 -    def unitstats(self, filename, _lang=None, store=None):
    631          # For now, lang and store are unused. lang will allow the user to
    632          # base stats information on the given language. See the commented
    633          # line containing stats.update below.
    634          """Return a dictionary of property names mapping to arrays which
    635          map unit indices to property values.
    636
    637          Please note that this is different from filestats, since filestats
    638          supplies sets of unit indices with a given property, whereas this
    639          method supplies arrays which map unit indices to given values."""
    640          stats = emptyunitstats()
    641
    642          #stats.update(self.unitchecks(filename, lang, store))
    643          fileid = self._getfileid(filename, store=store)
    644
    645          self.cur.execute("""SELECT
    646            sourcewords, targetwords
    647            FROM units WHERE fileid=?
    648            ORDER BY unitindex;""", (fileid,))
    649
    650          for sourcecount, targetcount in self.cur.fetchall():
    651              stats["sourcewordcount"].append(sourcecount)
    652              stats["targetwordcount"].append(targetcount)
    653
    654          return stats
    655