def make_json_error(ex):
code = ex.code if isinstance(ex, HTTPException) else 500
message = to_unicode(ex)
data = getattr(ex, 'data', None)
if data:
message = to_unicode(data)
response = jsonify(code=code, message=message)
response.status_code = code
return response
def raw_value(self, value):
if value is not None:
if isinstance(self.type, ListArg):
if len(value) > 0:
return self.type.raw_value(value)
else:
return to_unicode(value)
def fix_sequences(ctx, to_engine=None, tables=[]):
if to_engine is None:
to_engine = ctx.archive_db.engine
if not tables:
tables = ctx.current_db.metadata.sorted_tables
if not to_engine.dialect.name == "postgresql":
return
def get_sequences_values():
for table in tables:
pks = [c for c in table.c if c.primary_key]
for pk in pks:
if not pk.autoincrement:
continue
sequence_name = "%s_%s_seq" % (table.name, pk.name)
if to_engine.dialect.has_sequence(to_engine, sequence_name):
yield sequence_name, pk.name, pk.table.name
for sequence_name, pk_name, table_name in get_sequences_values():
ctx.log(green('\r fix') + ' ~> sequence %s' % sequence_name)
query = "select setval('%s', max(%s)) from %s"
try:
to_engine.execute(query % (sequence_name, pk_name, table_name))
except Exception as ex:
ctx.log(*red(to_unicode(ex)).splitlines(), prefix=(' ' * 9))
def before_cursor_execute(conn, cursor, statement,
parameters, context, executemany):
sql = to_unicode(statement)
for string in self.ignored:
if sql.lower().startswith(string.lower()):
return
sql = sql.replace(' \n', '\n').rstrip('\n')
self.buf.write(sql.rstrip('\n') + ";" + '\n')
def inspect_db(ctx):
infos = dict()
for table_name, size in count_all(ctx.current_db):
infos[table_name] = {"current_db_size": size,
"archive_db_size": 0,
"diff": size}
if database_exists(ctx.archive_db.engine.url):
for table_name, size in count_all(ctx.archive_db):
infos[table_name]["archive_db_size"] = size
diff = infos[table_name]["current_db_size"] - size
infos[table_name]["diff"] = diff
headers = ["Table", "Current DB size", "Archive DB size", "Diff"]
rows = [(k,
to_unicode(infos[k]["current_db_size"]),
to_unicode(infos[k]["archive_db_size"]),
to_unicode(infos[k]["diff"]))
for k in iterkeys(infos)]
return sorted(rows, key=lambda x: x[0]), headers
def convert(self, value, argtype):
if argtype == str:
return to_unicode(value)
elif argtype == bool:
return self.convert_bool(value)
elif argtype in integer_types:
return self.convert_int(value)
if isinstance(argtype, ListArg):
return argtype(value, self.convert)
else:
return argtype(value)
def sync_schema(ctx, tables, from_engine, to_engine):
inspector = Inspector.from_engine(to_engine)
existing_tables = inspector.get_table_names()
if tables is None:
ctx.current_db.reflect()
tables = ctx.current_db.metadata.sorted_tables
if to_engine is None:
to_engine = ctx.archive_db.engine
if from_engine is None:
from_engine = ctx.current_db.engine
for table in tables:
if table.name not in existing_tables:
ctx.log(' %s ~> table %s' % (green('create'), table.name))
try:
table.create(bind=to_engine, checkfirst=True)
except Exception as ex:
ctx.log(*red(to_unicode(ex)).splitlines(), prefix=(' ' * 9))
metadata = MetaData(from_engine)
for table in tables:
# Make sure we have the good version of the table
yield Table(table.name, metadata, autoload=True)
def alembic_apply_diff(ctx, op, op_name, diff, tables=[]):
tables_dict = dict(((table.name, table) for table in tables))
supported_operations = SUPPORTED_ALEMBIC_OPERATIONS.keys()
if op_name not in supported_operations:
raise ValueError("Unsupported '%s' operation" % op_name)
if op_name == "add_table":
table_name = diff[1].name
columns = [c.copy() for c in diff[1].columns]
msg = SUPPORTED_ALEMBIC_OPERATIONS[op_name] % table_name
op_callback = lambda: op.create_table(table_name, *columns)
elif op_name in ('add_column', 'remove_column'):
column = diff[3].copy()
table_name = diff[2]
if 'add' in op_name:
op_callback = lambda: op.add_column(diff[2], column)
else:
op_callback = lambda: op.drop_column(diff[2], column.name)
msg = SUPPORTED_ALEMBIC_OPERATIONS[op_name] % (column.name, table_name)
elif op_name in ('remove_index', 'add_index'):
index = diff[1]
columns = [i for i in index.columns]
table_name = index.table.name
index_colums = ()
for column in columns:
index_colums += ("%s.%s" % (column.table.name, column.name),)
if 'add' in op_name:
args = (index.name, table_name, [c.name for c in columns],)
kwargs = {'unique': index.unique}
op_callback = lambda: op.create_index(*args, **kwargs)
else:
op_callback = lambda: op.drop_index(index.name)
msg = SUPPORTED_ALEMBIC_OPERATIONS[op_name] \
% (index.name, ",".join(index_colums))
elif op_name in ('modify_type',):
table_name = diff[0][2]
column_name = diff[0][3]
kwargs = diff[0][4]
type_ = diff[0][6]
def op_callback():
try:
op.alter_column(table_name, column_name, server_default=None)
op.alter_column(table_name, column_name, type_=type_, **kwargs)
except:
# Some types cannot be casted
if table_name in tables_dict:
table = tables_dict[table_name]
column = table.columns[column_name].copy()
op.drop_column(table_name, column_name)
op.add_column(table_name, column)
msg = SUPPORTED_ALEMBIC_OPERATIONS[op_name] \
% (table_name, column_name, type_)
elif op_name in ('modify_nullable',):
table_name = diff[0][2]
column_name = diff[0][3]
kwargs = diff[0][4]
nullable = diff[0][6]
existing_type = kwargs['existing_type']
def op_callback():
op.alter_column(table_name, column_name,
nullable=nullable,
existing_type=existing_type)
msg = SUPPORTED_ALEMBIC_OPERATIONS[op_name] \
% (table_name, column_name, nullable)
try:
if msg is not None:
ctx.log("%s ~> %s" % (yellow('upgrade'), msg))
op_callback()
except Exception as ex:
ctx.log(*red(to_unicode(ex)).splitlines(), prefix=(' ' * 9))
def raw_value(self, values):
return to_unicode(self.sep.join(("%s" % v for v in values)))
def convert():
string = to_unicode(value)
if string:
for item in string.split(self.sep):
yield callback(item, self.type)
