New fava version breaks fava-investor

[francocalvo]

Hi! Apparently, v1.2.5 breaks fava_dashboards. For example, I've seen that FavaAPIException is not FavaAPIError in helpers.py.

I get this error:

werkzeug.routing.exceptions.BuildError: Could not build url for endpoint 'extension_report' with values ['bfile', 'module', 'report_name']. Did you forget to specify values ['extension_name']?

Reference:

• fava-dashboard issue
• fava-dashboard fix

[redstreet]

Good to know, thanks for the references too!

I'll get around to it when I can. Meanwhile, PR welcome from anyone.

[francocalvo]

I'll take a look at it. Most modules work just adding the correct extension_name.

There is a problem where g.ledger.price_map doesn't exist anymore. Now, it's called g.ledger.price, which returns a ~PriceMap called FavaPriceMap. This is the definition: link to beancount/fava.

When fava-investor tries to convert positions to amounts in assetalloc_class here: permalink to fava-investor/assetalloc_class/libassetalloc, it uses the beancount API, which tries to inverse, which breaks the process. Look:

  File "/home/calvo/Nextcloud/Finanzas/Beans/.venv/lib/python3.10/site-packages/fava_investor/modules/assetalloc_class/libassetalloc.py", line 103, in bucketize
    amount = convert.convert_position(pos, base_currency, price_map, date=end_date)
  File "/home/calvo/Nextcloud/Finanzas/Beans/.venv/lib/python3.10/site-packages/beancount/core/convert.py", line 177, in convert_position
    return convert_amount(pos.units, target_currency, price_map,
  File "/home/calvo/Nextcloud/Finanzas/Beans/.venv/lib/python3.10/site-packages/beancount/core/convert.py", line 202, in convert_amount
    _, rate = prices.get_price(price_map, base_quote, date)
  File "/home/calvo/Nextcloud/Finanzas/Beans/.venv/lib/python3.10/site-packages/beancount/core/prices.py", line 356, in get_price
    return get_latest_price(price_map, base_quote)
  File "/home/calvo/Nextcloud/Finanzas/Beans/.venv/lib/python3.10/site-packages/beancount/core/prices.py", line 329, in get_latest_price
    price_list = _lookup_price_and_inverse(price_map, base_quote)
  File "/home/calvo/Nextcloud/Finanzas/Beans/.venv/lib/python3.10/site-packages/beancount/core/prices.py", line 278, in _lookup_price_and_inverse
    return price_map[base_quote]
TypeError: 'FavaPriceMap' object is not subscriptable

There isn't an obvious way to go from FavaPriceMap to PriceMap, so maybe we can get the amount without the convert_amount method?

[redstreet]

See this comment:

With the latest fixes, everything works except for asset allocation by class, with which the display formatting is incorrect, and is missing the graph. I've opened beancount/fava#1721 for it. Help appreciated.

#87 tracks that issue. Closing this.