Move code around.

confarchive/query.py

@@ -0,0 +1,59 @@
+"""Database queries."""
+
+import typing
+from sqlalchemy.orm.query import Query
+from sqlalchemy.engine.cursor import CursorResult
+from sqlalchemy import func
+
+from . import database, model
+
+
+def top_speakers() -> Query:
+    """Find people who spoke at the most conferences."""
+    q: Query = (
+        database.session.query(model.Person, func.count())
+        .join(model.ConferencePerson)
+        .filter(model.Person.id != 1046)  # FOSDEM Staff
+        .group_by(model.Person)
+        .order_by(func.count().desc(), model.Person.name)
+    )
+    return q
+
+
+def top_events() -> Query:
+    """Most common titles of events."""
+    q: Query = (
+        database.session.query(model.Event.title, func.count())
+        .group_by(model.Event.title)
+        .order_by(func.count().desc())
+        .having(func.count() > 3)
+    )
+    return q
+
+
+def search_for_events(search_for: str) -> Query:
+    """Search for events with by title."""
+    q: Query = model.Event.query.filter(
+        model.Event.title.ilike(f"%{search_for}%")
+    ).order_by(model.Event.title)
+    return q
+
+
+def search_for_people(search_for: str) -> Query:
+    """Search for people by name."""
+    q: Query = model.Person.query.filter(
+        model.Person.name.ilike(f"%{search_for}%")
+    ).order_by(model.Person.name)
+    return q
+
+
+def speaker_counts() -> CursorResult:
+    """Speaker/conference frequency distribution."""
+    sql = """
+select num, count(*)
+from (select person_id, count(*) as num from conference_person group by person_id) a
+group by num
+order by num
+"""
+
+    return typing.cast(CursorResult, database.session.execute(sql))