* upgrade celery to 4.0.2
* using Redis for unit tests (sqla broker not supported in Celery 4)
* Setting Celery's soft_time_limit based on `SQLLAB_ASYNC_TIME_LIMIT_SEC` config
* Better error handling in async tasks
* Better statsd logging in async tasks
* show [pending/running] query status in Results tab
* systematically using sqla NullPool on worker (async) to limit number
of database connections
* sort explicitly on label
* add simple test for /slicemodelview/add endpoint
* make comments and method names more clear
* fix test name
* be more explicit, test status_code
* dont set first datasource as default
* not used
* add a disabled class if datasource is not selected
* sort datasources alphabettically
* make btn disabled is no datasource is selected
* fix linting
* initial structure for add new slice page
* simplify add slice form
* add a test
* fix long line
* use underscore for template name
* fix controls path
* fix vis types select
Load times on list view pages like Slices, Dashboards, Tables and Database
have grown to be terrible over time.
After a bit of digging, I found that the not specifying `search_columns`
in ModelViews actually means "all columns" and that for each filter,
FAB goes and fetches a list of all values to prepopulate the
filter dropdowns. That means that the list of tables would fetch all
slices and all users upfront which is horrible. Worse, database list
view would fetch all queries with is insane.
This picks a subset of columns for search/filters and changes the
default to show only 100 elements per page instead of 500
* [explore] fix and clean
Currently it's not possible to view queries while they are running, the
spinner appears endlessly. I decided to rearrange things a bit while
debugging so I could see clearly through it.
* Adding NotImplemented methods to base classes
* Fixing
* Piling up
* [bugfix] clarifying how to create a slice
First time users [rightfully] think that the proper way to create a
slice is to click the `+` button on the `Slices` CRUD page.
Changing / simplifying the redirect logic and message flashing that was
failing here somehow.
* Changing message from danger to info
* sql_lab.py: compress via utils
* utils.py: added zlib_compress and zlib_compress_to_string
* core.py: converted to use zlib_decompress_to_string; renamed uncompress to decompress in utils.py
* utils_tests.py: added test for compress/decompress
* fixed broken utils test; removed redundant code and empty lines from utils.py
* utils.py: corrected docstrings, removed unnecessary 'else'
* removed yet another superfluous else
* [sqllab] assign types for visualize flow
Somehow when using the visualize flow, the types were not
assigned at all, creating some bugs downstream. This PR attempts to get
the information required based on what pandas is knows and the types in
the data itself.
* Fixing tests
* Fixing tests
* Fixing more tests
* Fixing the last py3 tests
* Support more filter operators
* more filter operators [>, <, >=, <=, ==, !=, LIKE]
* Fix need to escape/double `%` in LIKE clauses
* spinner while loading values when changing column
* datasource config elements to allow to applying predicates when
fetching filter values
* refactor
* Removing doubling parens
* rebasing
* Merging migrations
