+
+
+### Add text/prose tables
+
+default_lang = u'en'
+
+def makeTextTable(object_table, name_plural, name_singular, columns, lazy):
+ # With "Language", we'd have two language_id. So, rename one to 'lang'
+ safe_name = object_table.__singlename__
+ if safe_name == 'language':
+ safe_name = 'lang'
+
+ tablename = object_table.__singlename__ + '_' + name_plural
+ singlename = object_table.__singlename__ + '_' + name_singular
+
+ class Strings(object):
+ __tablename__ = tablename
+ __singlename__ = singlename
+ _attrname = name_plural
+ _language_identifier = association_proxy('language', 'identifier')
+
+ for name, plural, column in columns:
+ column.name = name
+ if not column.nullable:
+ # A Python side default value, so that the strings can be set
+ # one by one without the DB complaining about missing values
+ column.default = ColumnDefault(u'')
+
+ table = Table(tablename, metadata,
+ Column(safe_name + '_id', Integer, ForeignKey(object_table.id),
+ primary_key=True, nullable=False),
+ Column('language_id', Integer, ForeignKey(Language.id),
+ primary_key=True, index=True, nullable=False),
+ *(column for name, plural, column in columns)
+ )
+
+ mapper(Strings, table,
+ properties={
+ "object_id": synonym(safe_name + '_id'),
+ "language": relation(
+ Language,
+ primaryjoin=table.c.language_id == Language.id,
+ ),
+ },
+ )
+
+ # The relation to the object
+ setattr(object_table, name_plural, relation(
+ Strings,
+ primaryjoin=(object_table.id == Strings.object_id),
+ backref=safe_name,
+ collection_class=attribute_mapped_collection('language'),
+ lazy=lazy,
+ ))
+ str(getattr(object_table, name_plural)) # [MORE MAGIC]. aka do not remove, or entire app fails. XXX what the fuck man
+ Strings.object = getattr(Strings, safe_name)
+
+ # Link the tables themselves, so we can get them if needed
+ Strings.object_table = object_table
+ setattr(object_table, name_singular + '_table', Strings)
+
+ for colname, pluralname, column in columns:
+ # Provide a property with all the names, and an English accessor
+ # for backwards compatibility
+ setattr(object_table, pluralname, StringProperty(
+ object_table, Strings, colname,
+ ))
+ setattr(object_table, colname, DefaultLangProperty(pluralname))
+
+ if colname == 'name':
+ object_table.name_table = Strings
+
+ return Strings
+
+class StringProperty(object):
+ def __init__(self, cls, stringclass, colname):
+ self.cls = cls
+ self.colname = colname
+ self.stringclass = stringclass
+
+ def __get__(self, instance, cls):
+ if instance:
+ return StringMapping(instance, self)
+ else:
+ return self
+
+ def __getitem__(self, lang):
+ return StringExpression(self, lang)
+
+ def __str__(self):
+ return '<StringDict %s.%s>' % (self.cls, self.colname)
+
+class StringMapping(collections.MutableMapping):
+ def __init__(self, instance, prop):
+ self.stringclass = prop.stringclass
+ self.instance = instance
+ self.strings = getattr(instance, prop.stringclass._attrname)
+ self.colname = prop.colname
+
+ def __len__(self):
+ return len(self.strings)
+
+ def __iter__(self):
+ return iter(self.strings)
+
+ def __contains__(self, lang):
+ return lang in self.strings
+
+ def __getitem__(self, lang):
+ return getattr(self.strings[lang], self.colname)
+
+ def __setitem__(self, lang, value):
+ try:
+ # Modifying an existing row
+ row = self.strings[lang]
+ except KeyError:
+ # We need do add a whole row for the language
+ row = self.stringclass()
+ row.object_id = self.instance.id
+ session = object_session(self.instance)
+ if isinstance(lang, basestring):
+ lang = session.query(Language).filter_by(
+ identifier=lang).one()
+ row.language = lang
+ self.strings[lang] = row
+ session.add(row)
+ return setattr(row, self.colname, value)
+
+ def __delitem__(self, lang):
+ raise NotImplementedError('Cannot delete a single string. '
+ 'Perhaps you wan to delete all of %s.%s?' %
+ (self.instance, self.stringclass._attrname)
+ )
+
+class StringExpression(ColumnOperators):
+ def __init__(self, prop, lang):
+ self.prop = prop
+ self.column = getattr(prop.stringclass, prop.colname)
+ self.lang_column = prop.stringclass._language_identifier
+ if isinstance(lang, basestring):
+ self.lang = lang
+ else:
+ self.lang = lang.identifier
+
+ def operate(self, op, *values, **kwargs):
+ return getattr(self.prop.cls, self.prop.stringclass._attrname).any(and_(
+ self.lang_column == self.lang,
+ op(self.column, *values, **kwargs),
+ ))
+
+class DefaultLangProperty(object):
+ def __init__(self, colname):
+ self.colname = colname
+
+ def __get__(self, instance, cls):
+ if instance:
+ return getattr(instance, self.colname)[default_lang]
+ else:
+ return getattr(cls, self.colname)[default_lang]
+
+ def __set__(self, instance, value):
+ getattr(instance, self.colname)[default_lang] = value
+
+ def __delete__(self, instance):
+ del getattr(instance, self.colname)[default_lang]
+
+for table in list(table_classes):
+ # Find all the language-specific columns, keeping them in the order they
+ # were defined
+ all_columns = []
+ for colname in dir(table):
+ column = getattr(table, colname)
+ if isinstance(column, LanguageSpecificColumn):
+ all_columns.append((colname, column))
+ delattr(table, colname)
+ all_columns.sort(key=lambda pair: pair[1].order)
+
+ # Break them into text and prose columns
+ text_columns = []
+ prose_columns = []
+ for colname, column in all_columns:
+ spec = colname, column.plural, column.makeSAColumn()
+ if isinstance(column, TextColumn):
+ text_columns.append(spec)
+ elif isinstance(column, ProseColumn):
+ prose_columns.append(spec)
+
+ if (text_columns or prose_columns) and issubclass(table, LanguageSpecific):
+ raise AssertionError("Language-specific table %s shouldn't have explicit language-specific columns" % table)
+
+ if text_columns:
+ string_table = makeTextTable(table, 'texts', 'text', text_columns, lazy=False)
+ if prose_columns:
+ string_table = makeTextTable(table, 'prose', 'prose', prose_columns, lazy=True)
+
+### Add language relations
+for table in list(table_classes):
+ if issubclass(table, LanguageSpecific):
+ table.language = relation(Language, primaryjoin=table.language_id == Language.id)
+
+Move.effect = DefaultLangProperty('effects')
+Move.effects = markdown.MoveEffectsProperty('effect')
+Move.short_effect = DefaultLangProperty('short_effects')
+Move.short_effects = markdown.MoveEffectsProperty('short_effect')
+
+MoveChangelog.effect = DefaultLangProperty('effects')
+MoveChangelog.effects = markdown.MoveEffectsProperty('effect')
+MoveChangelog.short_effect = DefaultLangProperty('short_effects')
+MoveChangelog.short_effects = markdown.MoveEffectsProperty('short_effect')
projects / zzz-pokedex.git / blobdiff