move everything to backend folder for migration to dashboard repository

backend/migrations/README

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+Single-database configuration for Flask.

backend/migrations/alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

backend/migrations/env.py

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+from __future__ import with_statement
+
+import logging
+from logging.config import fileConfig
+
+from flask import current_app
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+config.set_main_option(
+    'sqlalchemy.url',
+    str(current_app.extensions['migrate'].db.get_engine().url).replace(
+        '%', '%%'))
+target_metadata = current_app.extensions['migrate'].db.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=target_metadata, literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    connectable = current_app.extensions['migrate'].db.get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions['migrate'].configure_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

backend/migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

backend/migrations/versions/27761560bbcb_.py

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+"""empty message
+
+Revision ID: 27761560bbcb
+Revises: 
+Create Date: 2021-12-21 06:07:14.857940
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "27761560bbcb"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "app",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=64), nullable=True),
+        sa.Column("slug", sa.String(length=64), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("slug"),
+    )
+    op.create_table(
+        "app_role",
+        sa.Column("user_id", sa.String(length=64), nullable=False),
+        sa.Column("app_id", sa.Integer(), nullable=False),
+        sa.Column("role", sa.String(length=64), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["app_id"],
+            ["app.id"],
+        ),
+        sa.PrimaryKeyConstraint("user_id", "app_id"),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("app_role")
+    op.drop_table("app")
+    # ### end Alembic commands ###

backend/migrations/versions/5f462d2d9d25_convert_role_column_to_table.py

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+"""convert role column to table
+
+Revision ID: 5f462d2d9d25
+Revises: 27761560bbcb
+Create Date: 2022-04-13 15:00:27.182898
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision = "5f462d2d9d25"
+down_revision = "27761560bbcb"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    role_table = op.create_table(
+        "role",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=64), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.add_column("app_role", sa.Column("role_id", sa.Integer(), nullable=True))
+    op.create_foreign_key(None, "app_role", "role", ["role_id"], ["id"])
+    # ### end Alembic commands ###
+
+    # Insert default role "admin" as ID 1
+    op.execute(sa.insert(role_table).values(id=1,name="admin"))
+    # Set role_id 1 to all current "admin" users
+    op.execute("UPDATE app_role SET role_id = 1 WHERE role = 'admin'")
+
+    # Drop old column
+    op.drop_column("app_role", "role")
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column(
+        "app_role", sa.Column("role", mysql.VARCHAR(length=64), nullable=True)
+    )
+    op.drop_constraint(None, "app_role", type_="foreignkey")
+    op.drop_column("app_role", "role_id")
+    op.drop_table("role")
+    # ### end Alembic commands ###

backend/migrations/versions/b514cca2d47b_add_user_role.py

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+"""update apps and add 'user' and 'no access' role
+
+Revision ID: b514cca2d47b
+Revises: 5f462d2d9d25
+Create Date: 2022-06-08 17:24:51.305129
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = 'b514cca2d47b'
+down_revision = '5f462d2d9d25'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### end Alembic commands ###
+
+    # Check and update app table in DB
+    apps = {
+        "dashboard": "Dashboard",
+        "wekan": "Wekan",
+        "wordpress": "WordPress",
+        "nextcloud": "Nextcloud",
+        "zulip": "Zulip"
+    }
+    # app table
+    app_table = sa.table('app', sa.column('id', sa.Integer), sa.column(
+        'name', sa.String), sa.column('slug', sa.String))
+
+    existing_apps = op.get_bind().execute(app_table.select()).fetchall()
+    existing_app_slugs = [app['slug'] for app in existing_apps]
+    for app_slug in apps.keys():
+        if app_slug in existing_app_slugs:
+            op.execute(f'UPDATE app SET `name` = "{apps.get(app_slug)}" WHERE slug = "{app_slug}"')
+        else:
+            op.execute(f'INSERT INTO app (`name`, slug) VALUES ("{apps.get(app_slug)}","{app_slug}")')
+
+    # Fetch all apps including newly created
+    existing_apps = op.get_bind().execute(app_table.select()).fetchall()
+    # Insert role "user" as ID 2
+    op.execute("INSERT INTO `role` (id, `name`) VALUES (2, 'user')")
+    # Insert role "no access" as ID 3
+    op.execute("INSERT INTO `role` (id, `name`) VALUES (3, 'no access')")
+    # Set role_id 2 to all current "user" users which by have NULL role ID
+    op.execute("UPDATE app_role SET role_id = 2 WHERE role_id IS NULL")
+
+    # Add 'no access' role for all users that don't have any roles for specific apps
+    app_roles_table = sa.table('app_role', sa.column('user_id', sa.String), sa.column(
+        'app_id', sa.Integer), sa.column('role_id', sa.Integer))
+    
+    app_ids = [app['id'] for app in existing_apps]
+    app_roles = op.get_bind().execute(app_roles_table.select()).fetchall()
+    user_ids = set([app_role['user_id'] for app_role in app_roles])
+
+    for user_id in user_ids:
+        existing_user_app_ids = [x['app_id'] for x in list(filter(lambda role: role['user_id'] == user_id, app_roles))]
+        missing_user_app_ids = [x for x in app_ids if x not in existing_user_app_ids]
+
+        if len(missing_user_app_ids) > 0:
+            values = [{'user_id': user_id, 'app_id': app_id, 'role_id': 3} for app_id in missing_user_app_ids]
+            op.bulk_insert(app_roles_table, values)
+
+
+def downgrade():
+    # Revert all users role_id to NULL where role is 'user'
+    op.execute("UPDATE app_role SET role_id = NULL WHERE role_id = 2")
+    # Delete role 'user' from roles
+    op.execute("DELETE FROM `role` WHERE id = 2")
+
+    # Delete all user app roles where role is 'no access' with role_id 3
+    op.execute("DELETE FROM app_role WHERE role_id = 3")
+    # Delete role 'no access' from roles
+    op.execute("DELETE FROM `role` WHERE id = 3")

backend/migrations/versions/e08df0bef76f_.py

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+"""Add fields for external apps
+
+Revision ID: e08df0bef76f
+Revises: b514cca2d47b
+Create Date: 2022-09-23 16:38:06.557307
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'e08df0bef76f'
+down_revision = 'b514cca2d47b'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('app', sa.Column('external', sa.Boolean(), server_default='0', nullable=False))
+    op.add_column('app', sa.Column('url', sa.String(length=128), nullable=True))
+    # ### end Alembic commands ###
+
+    # Add monitoring app
+    op.execute(f'INSERT IGNORE INTO app (`name`, `slug`) VALUES ("Monitoring","monitoring")')
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('app', 'url')
+    op.drop_column('app', 'external')
+    # ### end Alembic commands ###