iterminate
2f8a8a2b77
- New CapacityTest model (battery_id FK CASCADE, mah, date, notes) - DB migration: create capacity_test table, migrate existing single-test data - Two new routes: add and delete capacity test records - Battery.tested_capacity_mah/tested_date kept in sync with latest test so dashboard display requires no changes - Battery detail: Capacity History card with sortable table, health % per reading, and a canvas line chart (shown when >= 2 records) - Chart uses CSS variables for colors — works in light and dark mode - Remove tested_capacity_mah/tested_date from Edit Details form - 3 new acceptance tests (48 total)
84 lines
3.2 KiB
Python
84 lines
3.2 KiB
Python
from sqlalchemy import Column, Integer, String, Text, ForeignKey
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from sqlalchemy.orm import declarative_base, relationship
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Base = declarative_base()
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class Device(Base):
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__tablename__ = "device"
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id = Column(Integer, primary_key=True, autoincrement=True)
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name = Column(String(100), nullable=False, unique=True)
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battery_slots = Column(Integer, nullable=False, default=1)
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device_type = Column(String(50), nullable=True)
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notes = Column(Text, nullable=True)
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batteries = relationship("Battery", back_populates="device")
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def installed_count(self):
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return sum(1 for b in self.batteries if b.status == "installed")
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def installed_brands(self):
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return set(b.brand for b in self.batteries if b.status == "installed")
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def has_mixed_brands(self):
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return len(self.installed_brands()) > 1
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def __repr__(self):
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return f"<Device {self.name}>"
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class Battery(Base):
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__tablename__ = "battery"
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id = Column(Integer, primary_key=True, autoincrement=True)
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label = Column(String(50), nullable=False)
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brand = Column(String(100), nullable=False)
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status = Column(String(20), nullable=False, default="available")
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device_id = Column(Integer, ForeignKey("device.id", ondelete="SET NULL"), nullable=True)
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notes = Column(Text, nullable=True)
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# Optional metadata
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size = Column(String(20), nullable=True) # AA, AAA, 18650, CR2032 …
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chemistry = Column(String(20), nullable=True) # NiMH, Alkaline, Li-ion …
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capacity_mah = Column(Integer, nullable=True) # nominal capacity in mAh
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tested_capacity_mah = Column(Integer, nullable=True) # last measured capacity in mAh
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tested_date = Column(String(10), nullable=True) # YYYY-MM-DD of last test
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charge_cycles = Column(Integer, nullable=True) # number of charge cycles
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purchase_date = Column(String(10), nullable=True) # YYYY-MM-DD when purchased
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storage_location = Column(String(100), nullable=True) # where stored when not installed
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device = relationship("Device", back_populates="batteries")
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capacity_tests = relationship(
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"CapacityTest", back_populates="battery",
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order_by="CapacityTest.tested_date",
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cascade="all, delete-orphan",
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)
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def is_available(self):
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return self.status == "available"
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def is_retired(self):
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return self.status == "retired"
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def is_installed(self):
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return self.status == "installed"
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def __repr__(self):
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return f"<Battery {self.label}>"
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class CapacityTest(Base):
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__tablename__ = "capacity_test"
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id = Column(Integer, primary_key=True, autoincrement=True)
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battery_id = Column(Integer, ForeignKey("battery.id", ondelete="CASCADE"), nullable=False)
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tested_capacity_mah = Column(Integer, nullable=False)
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tested_date = Column(String(10), nullable=False) # YYYY-MM-DD
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notes = Column(Text, nullable=True)
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battery = relationship("Battery", back_populates="capacity_tests")
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def __repr__(self):
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return f"<CapacityTest {self.battery_id} {self.tested_date} {self.tested_capacity_mah}mAh>"
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