refactor: changed the column name of repeat to frequency and the type from string to Enum in event_info table

Author: arunPdl02

…sions/87bca29af018_create_event_table.py …sions/4928dc3f0b07_create_event_table.pysrc/alembic/versions/87bca29af018_create_event_table.py renamed to src/alembic/versions/4928dc3f0b07_create_event_table.py src/alembic/versions/87bca29af018_create_event_table.py renamed to src/alembic/versions/4928dc3f0b07_create_event_table.py

@@ -1,8 +1,8 @@
 """create_event_table
 
-Revision ID: 87bca29af018
+Revision ID: 4928dc3f0b07
 Revises: 0a2c458d1ddd
-Create Date: 2026-05-20 16:40:02.515549
+Create Date: 2026-05-24 17:39:22.538239
 
 """
 from typing import Sequence, Union
@@ -12,7 +12,7 @@
 
 
 # revision identifiers, used by Alembic.
-revision: str = '87bca29af018'
+revision: str = '4928dc3f0b07'
 down_revision: Union[str, None] = '0a2c458d1ddd'
 branch_labels: Union[str, Sequence[str], None] = None
 depends_on: Union[str, Sequence[str], None] = None
@@ -26,9 +26,10 @@ def upgrade() -> None:
     sa.Column('name', sa.String(length=64), nullable=False),
     sa.Column('start_time', sa.DateTime(timezone=True), nullable=False),
     sa.Column('end_time', sa.DateTime(timezone=True), nullable=False),
-    sa.Column('repeat', sa.String(length=64), nullable=False),
+    sa.Column('frequency', sa.String(length=64), server_default=sa.text("'NONE'"), nullable=True),
     sa.Column('repeat_start_date', sa.Date(), nullable=True),
     sa.Column('repeat_end_date', sa.Date(), nullable=True),
+    sa.CheckConstraint("frequency IN ('NONE', 'DAILY', 'WEEKLY', 'MONTHLY', 'SEMESTERLY', 'YEARLY')", name=op.f('ck_event_info_valid_frequency_value')),
     sa.CheckConstraint('repeat_start_date < repeat_end_date', name=op.f('ck_event_info_check_repeat_start_date_before_repeat_end_date')),
     sa.CheckConstraint('start_time < end_time', name=op.f('ck_event_info_check_start_time_before_end_time')),
     sa.PrimaryKeyConstraint('eid', name=op.f('pk_event_info'))

src/event/constants.py

@@ -0,0 +1,9 @@
+from enum import StrEnum
+
+class EventFrequencyEnum(StrEnum):
+    NONE = "NONE"
+    DAILY = "DAILY"
+    WEEKLY = "WEEKLY"
+    MONTHLY = "MONTHLY"
+    SEMESTERLY = "SEMESTERLY"
+    YEARLY = "YEARLY"

src/event/models.py

@@ -1,5 +1,5 @@
 import datetime
-
+from event.constants import EventFrequencyEnum
 from pydantic import BaseModel, ConfigDict, model_validator
 
 
@@ -8,7 +8,7 @@ class BaseEvent(BaseModel):
     start_time: datetime.datetime
     end_time: datetime.datetime
     description: str | None = None
-    repeat: str | None = None
+    frequency: EventFrequencyEnum | None = None
     repeat_start_date: datetime.date | None = None
     repeat_end_date: datetime.date | None = None
 
@@ -42,7 +42,7 @@ class EventUpdate(BaseModel):
     start_time: datetime.datetime | None = None
     end_time: datetime.datetime | None = None
     description: str | None = None
-    repeat: str | None = None
+    frequency: EventFrequencyEnum | None = None
     repeat_start_date: datetime.date | None = None
     repeat_end_date: datetime.date | None = None
 

src/event/tables.py

@@ -1,6 +1,7 @@
 from datetime import date, datetime
+from event.constants import EventFrequencyEnum
 
-from sqlalchemy import CheckConstraint, Date, DateTime, Integer, String, Text
+from sqlalchemy import CheckConstraint, Date, DateTime, Integer, String, Text, text
 from sqlalchemy.orm import Mapped, mapped_column
 
 from database import Base
@@ -14,11 +15,12 @@ class EventDB(Base):
     name: Mapped[str] = mapped_column(String(64))
     start_time: Mapped[datetime] = mapped_column(DateTime(timezone=True))
     end_time: Mapped[datetime] = mapped_column(DateTime(timezone=True))
-    repeat: Mapped[str] = mapped_column(String(64))
+    frequency: Mapped[EventFrequencyEnum] = mapped_column(String(64), server_default=text("'NONE'"), nullable=True)
     repeat_start_date: Mapped[date] = mapped_column(Date, nullable=True)
     repeat_end_date: Mapped[date] = mapped_column(Date, nullable=True)
 
     __table_args__ = (
         CheckConstraint("start_time < end_time", name="check_start_time_before_end_time"),
         CheckConstraint("repeat_start_date < repeat_end_date", name="check_repeat_start_date_before_repeat_end_date"),
+        CheckConstraint(frequency.in_([e.value for e in EventFrequencyEnum]), name="valid_frequency_value")
     )