mirror of
https://github.com/apache/superset.git
synced 2024-09-12 00:29:39 -04:00
73cd2ea3b1
* Implement import / export dashboard functionality. * Address comments from discussion. * Add function descriptions. * Minor fixes * Fix tests for python 3. * Export datasources. * Implement tables import. * Json.loads does not support trailing commas. * Improve alter_dict func * Resolve comments. * Refactor tests * Move params_dict and alter_params to the ImportMixin * Fix flask menues.
113 lines
3.4 KiB
Python
113 lines
3.4 KiB
Python
"""Package's main module!"""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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import logging
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import os
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from logging.handlers import TimedRotatingFileHandler
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from flask import Flask, redirect
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from flask_appbuilder import SQLA, AppBuilder, IndexView
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from sqlalchemy import event, exc
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from flask_appbuilder.baseviews import expose
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from flask_cache import Cache
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from flask_migrate import Migrate
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from caravel.source_registry import SourceRegistry
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from werkzeug.contrib.fixers import ProxyFix
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APP_DIR = os.path.dirname(__file__)
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CONFIG_MODULE = os.environ.get('CARAVEL_CONFIG', 'caravel.config')
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app = Flask(__name__)
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app.config.from_object(CONFIG_MODULE)
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if not app.debug:
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# In production mode, add log handler to sys.stderr.
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app.logger.addHandler(logging.StreamHandler())
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app.logger.setLevel(logging.INFO)
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db = SQLA(app)
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@event.listens_for(db.engine, 'checkout')
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def checkout(dbapi_con, con_record, con_proxy):
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"""
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Making sure the connection is live, and preventing against:
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'MySQL server has gone away'
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Copied from:
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http://stackoverflow.com/questions/30630120/mysql-keeps-losing-connection-during-celery-tasks
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"""
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try:
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try:
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if hasattr(dbapi_con, 'ping'):
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dbapi_con.ping(False)
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else:
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cursor = dbapi_con.cursor()
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cursor.execute("SELECT 1")
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except TypeError:
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app.logger.debug('MySQL connection died. Restoring...')
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dbapi_con.ping()
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except dbapi_con.OperationalError as e:
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app.logger.warning(e)
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if e.args[0] in (2006, 2013, 2014, 2045, 2055):
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raise exc.DisconnectionError()
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else:
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raise
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return db
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cache = Cache(app, config=app.config.get('CACHE_CONFIG'))
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migrate = Migrate(app, db, directory=APP_DIR + "/migrations")
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# Logging configuration
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logging.basicConfig(format=app.config.get('LOG_FORMAT'))
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logging.getLogger().setLevel(app.config.get('LOG_LEVEL'))
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if app.config.get('ENABLE_TIME_ROTATE'):
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logging.getLogger().setLevel(app.config.get('TIME_ROTATE_LOG_LEVEL'))
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handler = TimedRotatingFileHandler(app.config.get('FILENAME'),
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when=app.config.get('ROLLOVER'),
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interval=app.config.get('INTERVAL'),
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backupCount=app.config.get('BACKUP_COUNT'))
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logging.getLogger().addHandler(handler)
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if app.config.get('ENABLE_CORS'):
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from flask_cors import CORS
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CORS(app, **app.config.get('CORS_OPTIONS'))
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if app.config.get('ENABLE_PROXY_FIX'):
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app.wsgi_app = ProxyFix(app.wsgi_app)
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if app.config.get('UPLOAD_FOLDER'):
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try:
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os.makedirs(app.config.get('UPLOAD_FOLDER'))
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except OSError:
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pass
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class MyIndexView(IndexView):
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@expose('/')
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def index(self):
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return redirect('/caravel/welcome')
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appbuilder = AppBuilder(
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app, db.session,
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base_template='caravel/base.html',
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indexview=MyIndexView,
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security_manager_class=app.config.get("CUSTOM_SECURITY_MANAGER"))
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sm = appbuilder.sm
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get_session = appbuilder.get_session
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# Registering sources
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module_datasource_map = app.config.get("DEFAULT_MODULE_DS_MAP")
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module_datasource_map.update(app.config.get("ADDITIONAL_MODULE_DS_MAP"))
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SourceRegistry.register_sources(module_datasource_map)
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from caravel import views, config # noqa
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