Create ufora-related revision

alembic/versions/9e8ce58c0a26_initial_migration_ufora_announcements.py

@@ -0,0 +1,52 @@
+"""Initial migration: Ufora announcements
+
+Revision ID: 9e8ce58c0a26
+Revises: 
+Create Date: 2022-06-17 01:36:02.767151
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9e8ce58c0a26'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('ufora_courses',
+    sa.Column('course_id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.Text(), nullable=False),
+    sa.Column('code', sa.Text(), nullable=False),
+    sa.Column('year', sa.Integer(), nullable=False),
+    sa.PrimaryKeyConstraint('course_id'),
+    sa.UniqueConstraint('code'),
+    sa.UniqueConstraint('name')
+    )
+    op.create_table('ufora_announcements',
+    sa.Column('announcement_id', sa.Integer(), nullable=False),
+    sa.Column('course_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['course_id'], ['ufora_courses.course_id'], ),
+    sa.PrimaryKeyConstraint('announcement_id')
+    )
+    op.create_table('ufora_course_aliases',
+    sa.Column('alias_id', sa.Integer(), nullable=False),
+    sa.Column('alias', sa.Text(), nullable=False),
+    sa.Column('course_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['course_id'], ['ufora_courses.course_id'], ),
+    sa.PrimaryKeyConstraint('alias_id'),
+    sa.UniqueConstraint('alias')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('ufora_course_aliases')
+    op.drop_table('ufora_announcements')
+    op.drop_table('ufora_courses')
+    # ### end Alembic commands ###

database/models.py

@@ -1,5 +1,47 @@
 from __future__ import annotations
 
-from sqlalchemy.orm import declarative_base
+from sqlalchemy import Column, Integer, Text, ForeignKey
+from sqlalchemy.orm import declarative_base, relationship
 
 Base = declarative_base()
+
+
+class UforaCourse(Base):
+    """A course on Ufora"""
+
+    __tablename__ = "ufora_courses"
+
+    course_id: int = Column(Integer, primary_key=True)
+    name: str = Column(Text, nullable=False, unique=True)
+    code: str = Column(Text, nullable=False, unique=True)
+    year: int = Column(Integer, nullable=False)
+
+    announcements: list[UforaAnnouncement] = relationship(
+        "UforaAnnouncement", back_populates="course", cascade="all, delete-orphan"
+    )
+    aliases: list[UforaCourseAlias] = relationship(
+        "UforaCourseAlias", back_populates="course", cascade="all, delete-orphan"
+    )
+
+
+class UforaCourseAlias(Base):
+    """An alias for a course on Ufora that we use to refer to them"""
+
+    __tablename__ = "ufora_course_aliases"
+
+    alias_id: int = Column(Integer, primary_key=True)
+    alias: str = Column(Text, nullable=False, unique=True)
+    course_id: int = Column(Integer, ForeignKey("ufora_courses.course_id"))
+
+    course: UforaCourse = relationship("UforaCourse", back_populates="aliases", uselist=False)
+
+
+class UforaAnnouncement(Base):
+    """An announcement sent on Ufora"""
+
+    __tablename__ = "ufora_announcements"
+
+    announcement_id = Column(Integer, primary_key=True)
+    course_id = Column(Integer, ForeignKey("ufora_courses.course_id"))
+
+    course = relationship("UforaCourse", back_populates="announcements", uselist=False)

tests/conftest.py

@@ -15,8 +15,6 @@ def tables():
     Starts from an empty database and runs through all the migrations to check those as well
     while we're at it
     """
-    print("CWD: ", os.getcwd())
-    print("Contents: ", list(os.listdir(os.getcwd())))
     alembic_config = config.Config("alembic.ini")
     command.upgrade(alembic_config, "head")
     yield