def __generic_init(self):
# Attributes which store objects hidden behind properties
self.__source = None
self.__ship = None
self.__character_proxy = None
self.__character_core = None
# Eos fit will be primary point of using Eos calculation engine for
# fit-specific data
self._eos_fit = EosFit()
# Manages fit-specific data needed for undo/redo
self._cmd_mgr = CommandManager(100)
# There's little sense in changing proxy character, thus we assign
# it here and it stays with fit forever
self.__set_character_proxy(CharacterProxy())
class Fit(PyfaBase):
"""
Full pyfa model of fit:
.fit
.character_core (read-write fit-agnostic)
.RestrictedSet(skills)
.character_proxy (read-only fit-specific)
.RestrictedSet(skills)
.ship
.stance
.{subsystems}
.modules.[high]/[med]/[low]
"""
__tablename__ = 'fits'
id = Column('fit_id', Integer, primary_key=True)
name = Column('fit_name', String, nullable=False)
_db_ship_type_id = Column('ship_type_id', Integer)
_db_stance_type_id = Column('stance_type_id', Integer)
_db_character_id = Column('character_id', Integer, ForeignKey('characters.character_id'))
_db_character = relationship('Character')
def __init__(self, name='', source=None, ship=None):
self.__generic_init()
# Use default source, unless specified otherwise
if source is None:
source = SourceManager.default
self._set_source(source)
self._set_ship(ship)
self.name = name
@reconstructor
def _dbinit(self):
self.__generic_init()
# Use default source for all reconstructed fits
self._set_source(SourceManager.default)
# Restore entities which are stored on fit in DB
if self._db_ship_type_id is not None:
self._set_ship(Ship(self._db_ship_type_id))
if self._db_stance_type_id is not None:
self.ship._set_stance(Stance(self._db_stance_type_id))
# TODO: find appropriate way to reconstruct modules
for module in self._db_modules:
pass
for subsystem in self._db_subsystems:
self.ship.subsystems._add_to_set(subsystem)
self.character_core = self._db_character
def __generic_init(self):
# Attributes which store objects hidden behind properties
self.__source = None
self.__ship = None
self.__character_proxy = None
self.__character_core = None
# Eos fit will be primary point of using Eos calculation engine for
# fit-specific data
self._eos_fit = EosFit()
# Manages fit-specific data needed for undo/redo
self._cmd_mgr = CommandManager(100)
# There's little sense in changing proxy character, thus we assign
# it here and it stays with fit forever
self.__set_character_proxy(CharacterProxy())
# Define list of source-dependent child objects, it's necessary
# to update fit source
@property
def _src_children(self):
return get_src_children(chain(
(self.ship,),
# Just proxy, character core is completely separate entity with
# its own source management
(self.character_proxy,),
))
# Read-only info
@property
def stats(self):
return self._eos_fit.stats
# Children getters/setters
@property
def character_core(self):
return self.__character_core
@character_core.setter
def character_core(self, new_char_core):
old_char_core = self.__character_core
if new_char_core is old_char_core:
return
# Update child reference
self.__character_core = new_char_core
# Update DB
self._db_character = new_char_core
# Handle all interactions between new character core and
# character proxy (which is attached to this fit) on proxy
# side
self.character_proxy._parent_char_core = new_char_core
@property
def character_proxy(self):
"""
For character proxy we're not providing setter because it's
supposed to stay with fit all the time.
"""
return self.__character_proxy
def __set_character_proxy(self, new_char_proxy):
old_char_proxy = self.__character_proxy
if new_char_proxy is old_char_proxy:
return
if old_char_proxy is not None:
if old_char_proxy._parent_fit is not self:
raise ItemRemovalConsistencyError(old_char_proxy)
# Handle all character proxy children removal on proxy itself
old_char_proxy._parent_fit = None
# Update child reference
self.__character_proxy = new_char_proxy
if new_char_proxy is not None:
if new_char_proxy._parent_fit is not None:
raise ItemAlreadyUsedError(new_char_proxy)
# Handle all character proxy children addition on proxy itself
new_char_proxy._parent_fit = self
@property
def ship(self):
return self.__ship
@ship.setter
def ship(self, new_ship):
command = ShipChangeCommand(self, new_ship)
self._cmd_mgr.do(command)
def _set_ship(self, new_ship):
old_ship = self.__ship
if new_ship is old_ship:
return
if old_ship is not None:
if old_ship._parent_fit is not self:
raise ItemRemovalConsistencyError(old_ship)
old_ship._parent_fit = None
self.__ship = new_ship
if new_ship is not None:
if new_ship._parent_fit is not None:
raise ItemAlreadyUsedError(new_ship)
new_ship._parent_fit = self
# Undo/redo proxies
@property
def has_undo(self):
return self._cmd_mgr.has_undo
@property
def has_redo(self):
return self._cmd_mgr.has_redo
def undo(self):
self._cmd_mgr.undo()
def redo(self):
self._cmd_mgr.redo()
def purge_commands(self):
"""
Purge all undos/redos fit currently has. Useful when you want to
do some initial setup on the fit, and then purge commands to present
fit without undo queue.
"""
self._cmd_mgr.purge()
# Miscellanea public stuff
@property
def source(self):
return self.__source
@source.setter
def source(self, new_source):
command = SourceChangeCommand(self, new_source)
self._cmd_mgr.do(command)
def _set_source(self, new_source):
"""
Set fit's source. Source represents EVE data to be used.
Required arguments:
new_source -- source to use, can be None
"""
# Attempt to fetch source from source manager if passed object
# is not instance of source class
if not isinstance(new_source, Source) and new_source is not None:
new_source = SourceManager.get(new_source)
old_source = self.source
# Do not update anything if sources are the same
if new_source is old_source:
return
self.__source = new_source
# Update eos model with new data
self._eos_fit.source = getattr(new_source, 'eos', None)
# Update pyfa model with new data
for src_child in self._src_children:
src_child._update_source()
persist = pyfa_persist
abandon = pyfa_abandon
def validate(self):
self._eos_fit.validate()
# Auxiliary methods
def __repr__(self):
spec = ['id']
return make_repr_str(self, spec)