Remove Corpus.max_nr_of_tokens column, instead set it as primitve class member

web/migrations/versions/8b2e0d43384a_.py

@@ -0,0 +1,28 @@
+"""empty message
+
+Revision ID: 8b2e0d43384a
+Revises: 790ce9512e75
+Create Date: 2021-01-25 11:18:45.256537
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '8b2e0d43384a'
+down_revision = '790ce9512e75'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('corpora', 'max_nr_of_tokens')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('corpora', sa.Column('max_nr_of_tokens', sa.INTEGER(), autoincrement=False, nullable=True))
+    # ### end Alembic commands ###