[GitHub] FlavienMakesInfographics opened a new issue #5659: SQL Lab queries fails to be rendered with `AttributeError: 'NoneType' object has no attribute 'database_name'`

[GitBox <gi...@apache.org>]

FlavienMakesInfographics opened a new issue #5659: SQL Lab queries fails to be rendered with `AttributeError: 'NoneType' object has no attribute 'database_name'`
URL: https://github.com/apache/incubator-superset/issues/5659
 
 
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   - [x] I have checked the superset logs for python stacktraces and included it here as text if any
   - [x] I have reproduced the issue with at least the latest released version of superset
   - [x] I have checked the issue tracker for the same issue and I haven't found one similar
   
   
   ### Superset version
   
   0.26.3
   
   ### Expected results
   
   Successful query.
   
   ### Actual results
   
   Sending the data fails.
   
   ### Steps to reproduce
   
   I just upgraded from version 0.20.4 to 0.26.3. I ran `superset db upgrade` and `superset db init` as stated in the [documentation](https://superset.incubator.apache.org/installation.html). The second command fails through
   `2018-08-17 09:40:05,133:ERROR:flask_migrate:Error: Directory /home/data/miniconda3/envs/superset/lib/python3.6/site-packages/superset/migrations already exists`
   
   When running the app, charts and dashboards work. But SQL Lab queries fail to be rendered with the following stacktrace:
   ```
   Exception on /superset/queries/-5000 [GET]
   Traceback (most recent call last):
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/flask/app.py", line 1982, in wsgi_app
       response = self.full_dispatch_request()
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/flask/app.py", line 1614, in full_dispatch_request
       rv = self.handle_user_exception(e)
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/flask/app.py", line 1517, in handle_user_exception
       reraise(exc_type, exc_value, tb)
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise
       raise value
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/flask/app.py", line 1612, in full_dispatch_request
       rv = self.dispatch_request()
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/flask/app.py", line 1598, in dispatch_request
       return self.view_functions[rule.endpoint](**req.view_args)
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/superset/views/core.py", line 2561, in queries
       dict_queries = {q.client_id: q.to_dict() for q in sql_queries}
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/superset/views/core.py", line 2561, in <dictcomp>
       dict_queries = {q.client_id: q.to_dict() for q in sql_queries}
     File "/home/data/miniconda3/envs/superset/lib/python3.6/site-packages/superset/models/sql_lab.py", line 95, in to_dict
       'db': self.database.database_name,
   AttributeError: 'NoneType' object has no attribute 'database_name'
   ```

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