| from flask import request |
| |
| from superset import tables_cache |
| |
| |
| def view_cache_key(*unused_args, **unused_kwargs): |
| args_hash = hash(frozenset(request.args.items())) |
| return 'view/{}/{}'.format(request.path, args_hash) |
| |
| |
| def memoized_func(timeout=5 * 60, key=view_cache_key): |
| """Use this decorator to cache functions that have predefined first arg. |
| |
| memoized_func uses simple_cache and stored the data in memory. |
| Key is a callable function that takes function arguments and |
| returns the caching key. |
| """ |
| def wrap(f): |
| if tables_cache: |
| def wrapped_f(cls, *args, **kwargs): |
| cache_key = key(*args, **kwargs) |
| o = tables_cache.get(cache_key) |
| if not kwargs['force'] and o is not None: |
| return o |
| o = f(cls, *args, **kwargs) |
| tables_cache.set(cache_key, o, timeout=timeout) |
| return o |
| else: |
| # noop |
| def wrapped_f(cls, *args, **kwargs): |
| return f(cls, *args, **kwargs) |
| return wrapped_f |
| return wrap |