begin timezone support

app/db.py

@@ -43,3 +43,4 @@ class User(UserMixin, db.Model):
     email = db.Column(db.String(100), unique=True)
     password = db.Column(db.String(100))
     realName = db.Column(db.String(1000))
+    timezone = db.Column(db.String(20))

app/migrations/versions/d4e71a6e9479_.py

@@ -0,0 +1,28 @@
+"""empty message
+
+Revision ID: d4e71a6e9479
+Revises: bf65c9f77f9f
+Create Date: 2022-11-22 05:24:06.596342
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'd4e71a6e9479'
+down_revision = 'bf65c9f77f9f'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('user', sa.Column('timezone', sa.String(length=20), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('user', 'timezone')
+    # ### end Alembic commands ###