def show(cls, pulsar_ids=None):
from utils import get_pulsaralias_cache, get_pulsarid_cache, get_pulsarname_cache
get_pulsaralias_cache(update=True)
get_pulsarid_cache(update=True)
get_pulsarname_cache(update=True)
pulsars = cls.init_pulsars(get_pulsarinfo(pulsar_ids=pulsar_ids))
return pulsars
def add(cls, name, itrf_x, itrf_y, itrf_z, abbrev, code, aliases=[]):
from utils import get_pulsaralias_cache, get_pulsarid_cache
get_pulsaralias_cache(update=True)
get_pulsarid_cache(update=True)
response = add_telescope(name=name, \
itrf_x=itrf_x, \
itrf_y=itrf_y, \
itrf_z=itrf_z, \
abbrev=abbrev, \
code=code, \
aliases=aliases)
return response
def rename_pulsar(oldname, newname, existdb=None):
"""Rename pulsar DB entry. An error is raised if the
renaming in invalid.
Inputs:
oldname: The old name of the pulsar entry.
newname: The proposed new name of the entry.
existdb: A (optional) existing database connection object.
(Default: Establish a db connection)
Ouputs:
None
"""
db = existdb or database.Database()
db.connect()
# Get the pulsar_id of the entry to rename
pulsar_id = utils.get_pulsarid(oldname)
trans = db.begin()
try:
# Check if the new name is valid
check_new_name(pulsar_id, newname)
# Rename the pulsar entry
values = {'pulsar_name': newname}
update = db.pulsars.update().\
where(db.pulsars.c.pulsar_id == pulsar_id)
results = db.execute(update, values)
results.close()
if newname not in utils.get_pulsarid_cache().keys():
# Add newname to pulsar_aliases table
ins = db.pulsar_aliases.insert()
values = {'pulsar_id':pulsar_id, \
'pulsar_alias':newname}
result = db.execute(ins, values)
result.close()
except:
db.rollback()
raise
else:
db.commit()
finally:
if not existdb:
db.close()
def check_new_name(pulsar_id, newname):
"""Check if the new name is OK to use for the given
pulsar. The new name is invalid if it is already
in use with a different pulsar_id entry.
An error is raised if the proposed name is invalid.
Inputs:
pulsar_id: The DB ID number of the pulsar to rename.
newname: The proposed new name.
Ouputs:
None
"""
pulsarid_cache = utils.get_pulsarid_cache()
if (newname in pulsarid_cache.keys()) and \
(pulsarid_cache[newname] != pulsar_id):
used_id = pulsarid_cache[newname]
raise errors.BadInputError("The proposed pulsar name, '%s', " \
"is already in use with a different " \
"pulsar (%s, ID: %d). Pulsar names and " \
"aliases must refer to a single " \
"pulsar only." % \
(newname, utils.get_pulsarname(used_id), \
used_id))
def add(cls, name, aliases=list()): from utils import get_pulsaralias_cache, get_pulsarid_cache get_pulsaralias_cache(update=True) get_pulsarid_cache(update=True) response = add_pulsar(name, aliases) return response
