Benjamin Mako Hill
7ec1be5dc6
Instructor participation report: per-student histograms, outcome mix by class day, and a sortable table including the fairness ratio (answered calls over questions present for, with opt-out days out of the denominator), plus CSV exports of students, calls, and opt-outs. Assessment scales are now per-course data: ordered levels with labels and points out of 100 (defaults carry the old R grading values), with calls referencing levels by id so renames follow through to history. Renaming, re-pointing, reordering, and adding levels are always allowed; deleting a level in use by recorded calls is blocked. Pronouns and course term dates come from Canvas custom variable substitutions, at launch and roster-wide via rlid-scoped NRPS; the student page notes that names/pronouns are Canvas-sourced. Rosters can also be refreshed outside launches: a "Sync roster now" button and a sync-rosters CLI command for an hourly cron job, skipping ended courses. Alembic now runs SQLite-compatible batch migrations with a constraint naming convention. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
38 lines
1.0 KiB
Python
38 lines
1.0 KiB
Python
from flask import current_app, g
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from sqlalchemy import MetaData, create_engine
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from sqlalchemy.orm import DeclarativeBase, sessionmaker
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# Deterministic constraint names, required for SQLite batch migrations
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# and portable to MariaDB/MySQL.
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NAMING_CONVENTION = {
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"ix": "ix_%(column_0_label)s",
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"uq": "uq_%(table_name)s_%(column_0_name)s",
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"ck": "ck_%(table_name)s_%(constraint_name)s",
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"fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
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"pk": "pk_%(table_name)s",
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}
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class Base(DeclarativeBase):
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metadata = MetaData(naming_convention=NAMING_CONVENTION)
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def make_engine(url, echo=False):
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return create_engine(url, echo=echo)
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def make_session_factory(engine):
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return sessionmaker(bind=engine, expire_on_commit=False)
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def get_db():
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if "db_session" not in g:
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g.db_session = current_app.extensions["db_session_factory"]()
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return g.db_session
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def close_db(exc=None):
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session = g.pop("db_session", None)
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if session is not None:
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session.close()
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