motorized_individual_travel.db_classes

Complexity

Total Complexity

0

Size/Duplication

Total Lines	254
Duplicated Lines	19.69 %

Importance

Changes

0

"""
DB tables / SQLAlchemy ORM classes for motorized individual travel
"""

from sqlalchemy import (
    Boolean,
    Column,
    DateTime,
    Float,
    ForeignKey,
    Integer,
    SmallInteger,
    String,
)
from sqlalchemy.dialects.postgresql import REAL
from sqlalchemy.ext.declarative import declarative_base

from egon.data.datasets.mv_grid_districts import MvGridDistricts
from egon.data.datasets.scenario_parameters import EgonScenario

# from sqlalchemy.orm import relationship


Base = declarative_base()


class EgonEvPool(Base):
    """Motorized individual travel: EV pool

    Each row is one EV, uniquely defined by either (`ev_id`) or
    (`rs7_id`, `type`, `simbev_id`).

    Columns
    -------
    ev_id:
        Unique id of EV
    rs7_id:
        id of RegioStar7 region
    type:
        type of EV, one of
            * bev_mini
            * bev_medium
            * bev_luxury
            * phev_mini
            * phev_medium
            * phev_luxury
    simbev_ev_id:
        id of EV as exported by simBEV
    """

    __tablename__ = "egon_ev_pool"
    __table_args__ = {"schema": "demand"}

    scenario = Column(String, ForeignKey(EgonScenario.name), primary_key=True)
    ev_id = Column(Integer, primary_key=True)
    rs7_id = Column(SmallInteger)
    type = Column(String(11))
    simbev_ev_id = Column(Integer)

    # trips = relationship(
    #     "EgonEvTrip", cascade="all, delete", back_populates="ev"
    # )
    # mvgds = relationship(
    #     "EgonEvMvGridDistrict", cascade="all, delete", back_populates="ev"
    # )


class EgonEvTrip(Base):
    """Motorized individual travel: EVs' trips

    Each row is one event of a specific electric vehicle which is
    uniquely defined by `rs7_id`, `ev_id` and `event_id`.

    Columns
    -------
    scenario:
        Scenario
    event_id:
        Unique id of EV event
    egon_ev_pool_ev_id:
        id of EV, references EgonEvPool.ev_id
    simbev_event_id:
        id of EV event, unique within a specific EV dataset
    location:
        Location of EV event, one of
            * "0_work"
            * "1_business"
            * "2_school"
            * "3_shopping"
            * "4_private/ridesharing"
            * "5_leisure"
            * "6_home"
            * "7_charging_hub"
            * "driving"
    use_case:
        Use case of EV event, one of
            * "public" (public charging)
            * "home" (private charging at 6_home)
            * "work" (private charging at 0_work)
            * <empty> (driving events)
    charging_capacity_nominal:
        Nominal charging capacity in kW
    charging_capacity_grid:
        Charging capacity at grid side in kW,
        includes efficiency of charging infrastructure
    charging_capacity_battery:
        Charging capacity at battery side in kW,
        includes efficiency of car charger
    soc_start:
        State of charge at start of event
    soc_start:
        State of charge at end of event
    charging_demand:
        Energy demand during parking/charging event in kWh.
        0 if no charging takes place.
    park_start:
        Start timestep of parking event (15min interval, e.g. 4 = 1h)
    park_end:
        End timestep of parking event (15min interval)
    drive_start:
        Start timestep of driving event (15min interval)
    drive_end:
        End timestep of driving event (15min interval)
    consumption:
        Energy demand during driving event in kWh

    Notes
    -----
    pgSQL's REAL is sufficient for floats as simBEV rounds output to 4 digits.
    """

    __tablename__ = "egon_ev_trip"
    __table_args__ = {"schema": "demand"}

    # scenario = Column(
    #    String, ForeignKey(EgonEvPool.scenario), primary_key=True
    # )
    scenario = Column(String, ForeignKey(EgonScenario.name), primary_key=True)
    event_id = Column(Integer, primary_key=True)
    # egon_ev_pool_ev_id = Column(
    #    Integer, ForeignKey(EgonEvPool.ev_id), nullable=False, index=True
    # )
    egon_ev_pool_ev_id = Column(Integer, nullable=False, index=True)
    simbev_event_id = Column(Integer)
    location = Column(String(21))
    use_case = Column(String(8))
    charging_capacity_nominal = Column(REAL)
    charging_capacity_grid = Column(REAL)
    charging_capacity_battery = Column(REAL)
    soc_start = Column(REAL)
    soc_end = Column(REAL)
    charging_demand = Column(REAL)
    park_start = Column(Integer)
    park_end = Column(Integer)
    drive_start = Column(Integer)
    drive_end = Column(Integer)
    consumption = Column(REAL)

    # __table_args__ = (
    #    ForeignKeyConstraint([scenario, egon_ev_pool_ev_id],
    #                         [EgonEvPool.scenario, EgonEvPool.ev_id]),
    #    {"schema": "demand"},
    # )

    # ev = relationship("EgonEvPool", back_populates="trips")


class EgonEvCountRegistrationDistrict(Base):

This code seems to be duplicated in your project.

    """Electric vehicle counts per registration district"""

    __tablename__ = "egon_ev_count_registration_district"
    __table_args__ = {"schema": "demand"}

    scenario = Column(String, ForeignKey(EgonScenario.name), primary_key=True)
    scenario_variation = Column(String, primary_key=True)
    ags_reg_district = Column(Integer, primary_key=True)
    reg_district = Column(String)
    bev_mini = Column(Integer)
    bev_medium = Column(Integer)
    bev_luxury = Column(Integer)
    phev_mini = Column(Integer)
    phev_medium = Column(Integer)
    phev_luxury = Column(Integer)


class EgonEvCountMunicipality(Base):

This code seems to be duplicated in your project.

    """Electric vehicle counts per municipality"""

    __tablename__ = "egon_ev_count_municipality"
    __table_args__ = {"schema": "demand"}

    scenario = Column(String, ForeignKey(EgonScenario.name), primary_key=True)
    scenario_variation = Column(String, primary_key=True)
    ags = Column(Integer, primary_key=True)
    bev_mini = Column(Integer)
    bev_medium = Column(Integer)
    bev_luxury = Column(Integer)
    phev_mini = Column(Integer)
    phev_medium = Column(Integer)
    phev_luxury = Column(Integer)
    rs7_id = Column(SmallInteger)


class EgonEvCountMvGridDistrict(Base):

This code seems to be duplicated in your project.

    """Electric vehicle counts per MV grid district"""

    __tablename__ = "egon_ev_count_mv_grid_district"
    __table_args__ = {"schema": "demand"}

    scenario = Column(String, ForeignKey(EgonScenario.name), primary_key=True)
    scenario_variation = Column(String, primary_key=True)
    bus_id = Column(
        Integer, ForeignKey(MvGridDistricts.bus_id), primary_key=True
    )
    bev_mini = Column(Integer)
    bev_medium = Column(Integer)
    bev_luxury = Column(Integer)
    phev_mini = Column(Integer)
    phev_medium = Column(Integer)
    phev_luxury = Column(Integer)
    rs7_id = Column(SmallInteger)


class EgonEvMvGridDistrict(Base):
    """List of electric vehicles per MV grid district"""

    __tablename__ = "egon_ev_mv_grid_district"
    __table_args__ = {"schema": "demand"}

    id = Column(Integer, primary_key=True)
    scenario = Column(String, ForeignKey(EgonScenario.name), index=True)
    scenario_variation = Column(String, index=True)
    bus_id = Column(Integer, ForeignKey(MvGridDistricts.bus_id), index=True)
    # egon_ev_pool_ev_id = Column(Integer, ForeignKey(EgonEvPool.ev_id))
    egon_ev_pool_ev_id = Column(Integer, nullable=False)

    # ev = relationship("EgonEvPool", back_populates="mvgds")


class EgonEvMetadata(Base):
    """List of EV Pool Metadata"""

    __tablename__ = "egon_ev_metadata"
    __table_args__ = {"schema": "demand"}

    scenario = Column(String, primary_key=True)
    eta_cp = Column(Float)
    stepsize = Column(Integer)
    start_date = Column(DateTime)
    end_date = Column(DateTime)
    soc_min = Column(Float)
    grid_timeseries = Column(Boolean)
    grid_timeseries_by_usecase = Column(Boolean)