add indexes for person models

backend/app/base/models.py

@@ -10,6 +10,6 @@ class Base(db.Model):
 class Person(db.Model):
     __abstract__ = True
 
-    first_name = db.Column(db.String(255), nullable=False)
+    first_name = db.Column(db.String(255), index=True, nullable=False)
-    last_name = db.Column(db.String(255), nullable=False)
+    last_name = db.Column(db.String(255), index=True, nullable=False)
     email = db.Column(db.String(120), unique=True)

backend/migrations/versions/84d4066483b8_.py

@@ -0,0 +1,34 @@
+"""empty message
+
+Revision ID: 84d4066483b8
+Revises: 45be50e56689
+Create Date: 2022-05-19 17:14:00.684001
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '84d4066483b8'
+down_revision = '45be50e56689'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_index(op.f('ix_project_supervisors_first_name'), 'project_supervisors', ['first_name'], unique=False)
+    op.create_index(op.f('ix_project_supervisors_last_name'), 'project_supervisors', ['last_name'], unique=False)
+    op.create_index(op.f('ix_students_first_name'), 'students', ['first_name'], unique=False)
+    op.create_index(op.f('ix_students_last_name'), 'students', ['last_name'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_students_last_name'), table_name='students')
+    op.drop_index(op.f('ix_students_first_name'), table_name='students')
+    op.drop_index(op.f('ix_project_supervisors_last_name'), table_name='project_supervisors')
+    op.drop_index(op.f('ix_project_supervisors_first_name'), table_name='project_supervisors')
+    # ### end Alembic commands ###