def clearDB(self):
# Kanji.query.delete()
# Word.query.delete()
# Example.query.delete()
#NB: for table in reversed(meta.Base.metadata.sorted_tables): meta.Session.execute(table.delete()); meta.Session.commit()
try:
for table in reversed(metadata.sorted_tables) : session.execute(table.delete()); session.commit()
# session.commit()
except Exception, e:
session.rollback()
log.error(e)
def get_name_and_options(self, admin):
"""return a tuple of the name of the filter and a list of options that can be selected.
Each option is a tuple of the name of the option, and a filter function to
decorate a query
@return: (filter_name, [(option_name, query_decorator), ...)
"""
from sqlalchemy.sql import select
from sqlalchemy import orm
from elixir import session
filter_names = []
joins = []
table = admin.entity.table
path = self.attribute.split('.')
for field_name in path:
attributes = admin.get_field_attributes(field_name)
filter_names.append(attributes['name'])
# @todo: if the filter is not on an attribute of the relation, but on the relation itselves
if 'target' in attributes:
admin = attributes['admin']
joins.append(field_name)
if attributes['direction'] == orm.interfaces.MANYTOONE:
table = admin.entity.table.join(table)
else:
table = admin.entity.table
col = getattr(admin.entity, field_name)
query = select([col], distinct=True,
order_by=col.asc()).select_from(table)
def create_decorator(col, attributes, value, joins):
def decorator(q):
if joins:
q = q.join(joins, aliased=True)
if 'precision' in attributes:
delta = pow(10, -1 * attributes['precision'])
return q.filter(
sql.and_(col < value + delta, col > value - delta))
return q.filter(col == value)
return decorator
options = [(_(self._value_to_string(value[0])),
create_decorator(col, attributes, value[0], joins))
for value in session.execute(query)]
return (filter_names[0], [(_('all'), lambda q: q)] + options)
def get_name_and_options(self, admin):
"""return a tuple of the name of the filter and a list of options that can be selected.
Each option is a tuple of the name of the option, and a filter function to
decorate a query
@return: (filter_name, [(option_name, query_decorator), ...)
"""
from sqlalchemy.sql import select
from sqlalchemy import orm
from elixir import session
filter_names = []
joins = []
table = admin.entity.table
path = self.attribute.split('.')
for field_name in path:
attributes = admin.get_field_attributes(field_name)
filter_names.append(attributes['name'])
# @todo: if the filter is not on an attribute of the relation, but on the relation itselves
if 'target' in attributes:
admin = attributes['admin']
joins.append(field_name)
if attributes['direction'] == orm.interfaces.MANYTOONE:
table = admin.entity.table.join(table)
else:
table = admin.entity.table
col = getattr( admin.entity, field_name )
query = select([col], distinct=True, order_by=col.asc()).select_from(table)
def create_decorator(col, attributes, value, joins):
def decorator(q):
if joins:
q = q.join(joins, aliased=True)
if 'precision' in attributes:
delta = pow( 10, -1*attributes['precision'])
return q.filter( sql.and_(col < value+delta, col > value-delta) )
return q.filter(col==value)
return decorator
options = [(_(self._value_to_string(value[0])), create_decorator(col, attributes, value[0], joins))
for value in session.execute(query)]
def clearDB(self):
# Kanji.query.delete()
# Word.query.delete()
# Example.query.delete()
#NB: for table in reversed(meta.Base.metadata.sorted_tables): meta.Session.execute(table.delete()); meta.Session.commit()
try:
for table in reversed(metadata.sorted_tables) : session.execute(table.delete()); session.commit()
# session.commit()
except Exception, e:
session.rollback()
log.error(e)
session.execute('VACUUM')
class DictionaryLookup:
#FIXME: REFACTOR, REFACTOR, friggin' REFACTOR all this mess!
def __init__(self):
self.db = SqlSoup(SQLITE + PATH_TO_RES + JMDICT)
self.dictionary = {}
def joinTables(self):
'''Join tables on init for better perfomance'''
join_word = self.db.join(self.db.k_ele, self.db.r_ele, self.db.k_ele.fk==self.db.r_ele.fk, isouter=True)
join_sense = self.db.join(join_word, self.db.sense, join_word.fk==self.db.sense.fk )
join_sense_labels = self.db.with_labels(join_sense)
self.join_gloss = self.db.join(join_sense_labels, self.db.gloss, join_sense_labels.sense_id==self.db.gloss.fk)
def clearDB(self):
Item.query.delete()
session.commit()
session.execute('VACUUM')
