def set(section, option, value, session=None):
"""
Set the given option to the specified value. If the option doesn't exist, it is created.
:param section: The name of the section.
:param option: The name of the option.
:param value: The content of the value.
:param session: The database session in use.
"""
if not has_option(section=section, option=option, use_cache=False, session=session):
section_existed = has_section(section=section)
new_option = models.Config(section=section, opt=option, value=value)
new_option.save(session=session)
delete_from_cache(key=_value_cache_key(section, option))
delete_from_cache(key=_has_option_cache_key(section, option))
delete_from_cache(key=_items_cache_key(section))
if not section_existed:
delete_from_cache(key=SECTIONS_CACHE_KEY)
delete_from_cache(key=_has_section_cache_key(section))
else:
old_value = session.query(models.Config.value).filter_by(section=section,
opt=option).first()[0]
if old_value != str(value):
old_option = models.ConfigHistory(section=section,
opt=option,
value=old_value)
old_option.save(session=session)
session.query(models.Config).filter_by(section=section, opt=option).update({'value': str(value)})
delete_from_cache(key=_value_cache_key(section, option))
delete_from_cache(key=_items_cache_key(section))
def remove_option(section, option, session=None):
"""
Remove the specified option from the configuration.
:param section: The name of the section.
:param option: The name of the option.
:param session: The database session in use.
:returns: True/False
"""
if not has_option(section=section, option=option, session=session, use_cache=False):
return False
else:
old_option = models.ConfigHistory(section=section,
opt=option,
value=session.query(models.Config.value).filter_by(section=section,
opt=option).first()[0])
old_option.save(session=session)
session.query(models.Config).filter_by(section=section, opt=option).delete()
if not session.query(func.count('*')).select_from(models.Config).filter_by(section=section).scalar():
# we deleted the last config entry in the section. Invalidate the section cache
delete_from_cache(key=SECTIONS_CACHE_KEY)
delete_from_cache(key=_has_section_cache_key(section))
delete_from_cache(key=_items_cache_key(section))
delete_from_cache(key=_has_option_cache_key(section, option))
delete_from_cache(key=_value_cache_key(section, option))
return True
def remove_section(section, session=None):
"""
Remove the specified section from the specified section.
:param section: The name of the section.
:param session: The database session in use.
:returns: True/False.
"""
if not has_section(section=section, session=session):
return False
else:
for old in session.query(
models.Config.value).filter_by(section=section).all():
old_option = models.ConfigHistory(section=old[0],
opt=old[1],
value=old[2])
old_option.save(session=session)
delete_from_cache(key=_has_option_cache_key(old[0], old[1]))
delete_from_cache(key=_value_cache_key(old[0], old[1]))
session.query(models.Config).filter_by(section=section).delete()
delete_from_cache(key=SECTIONS_CACHE_KEY)
delete_from_cache(key=_items_cache_key(section))
return True