Fixing database migrations - will require a delete of the database.

migrations/versions/555d3c6c0f9a_.py

@@ -1,32 +0,0 @@
-""" Don't use a primary key as the foreign key, things blow up.
-
-Revision ID: 555d3c6c0f9a
-Revises: cb645597b71b
-Create Date: 2019-12-30 15:58:20.633838
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '555d3c6c0f9a'
-down_revision = 'cb645597b71b'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('file_data', sa.Column('file_model_id', sa.Integer(), nullable=True))
-    op.drop_constraint(None, 'file_data', type_='foreignkey')
-    op.create_foreign_key(None, 'file_data', 'file', ['file_model_id'], ['id'])
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_constraint(None, 'file_data', type_='foreignkey')
-    op.create_foreign_key(None, 'file_data', 'file', ['id'], ['id'])
-    op.drop_column('file_data', 'file_model_id')
-    # ### end Alembic commands ###

migrations/versions/9d233e1c58b1_.py

@@ -1,8 +1,8 @@
 """empty message
 
-Revision ID: cb645597b71b
+Revision ID: 9d233e1c58b1
 Revises: 53596ce86e7e
-Create Date: 2019-12-27 13:50:31.336513
+Create Date: 2020-01-02 10:13:24.486261
 
 """
 from alembic import op
@@ -10,7 +10,7 @@ import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.
-revision = 'cb645597b71b'
+revision = '9d233e1c58b1'
 down_revision = '53596ce86e7e'
 branch_labels = None
 depends_on = None
@@ -33,7 +33,8 @@ def upgrade():
     op.create_table('file_data',
     sa.Column('id', sa.Integer(), nullable=False),
     sa.Column('data', sa.LargeBinary(), nullable=True),
-    sa.ForeignKeyConstraint(['id'], ['file.id'], ),
+    sa.Column('file_model_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['file_model_id'], ['file.id'], ),
     sa.PrimaryKeyConstraint('id')
     )
     # ### end Alembic commands ###