Thanks to Julia van orsouw and ARM from odoo form for this solution.
1. debug mode
2. technical/server actions
3. create
4. action name: e.g. fix unreserved qty
5. model: ir.actions.server
6. action to do: "execute python code"
7. copy/paste the fix underneath the pre-existing code
8. "save"
9. "create contextual action"
10. refresh page
11. action/fix "fix unreserved qty"
12. wait for it to load
13. "remove contextual action"
14. action/delete
Here is the code for the server action
# Available variables:
# - env: Odoo Environment on which the action is triggered
# - model: Odoo Model of the record on which the action is triggered; is a void recordset
# - record: record on which the action is triggered; may be void
# - records: recordset of all records on which the action is triggered in multi-mode; may be void
# - time, datetime, dateutil, timezone: useful Python libraries
# - log: log(message, level='info'): logging function to record debug information in ir.logging table
# - Warning: Warning Exception to use with raise
# To return an action, assign: action = {...}
# Available variables:
# - env: Odoo Environment on which the action is triggered
# - model: Odoo Model of the record on which the action is triggered; is a void recordset
# - record: record on which the action is triggered; may be void
# - records: recordset of all records on which the action is triggered in multi-mode; may be void
# - time, datetime, dateutil, timezone: useful Python libraries
# - log: log(message, level='info'): logging function to record debug information in ir.logging table
# - Warning: Warning Exception to use with raise
# To return an action, assign: action = {...}
quants = env["stock.quant"].search([])
move_line_ids = []
warning = ""
for quant in quants:
move_lines = env["stock.move.line"].search(
[
("product_id", "=", quant.product_id.id),
("location_id", "=", quant.location_id.id),
("lot_id", "=", quant.lot_id.id),
("package_id", "=", quant.package_id.id),
("owner_id", "=", quant.owner_id.id),
("product_qty", "!=", 0),
]
)
move_line_ids += move_lines.ids
reserved_on_move_lines = sum(move_lines.mapped("product_qty"))
move_line_str = str.join(
", ", [str(move_line_id) for move_line_id in move_lines.ids]
)
if quant.location_id.should_bypass_reservation():
# If a quant is in a location that should bypass the reservation, its `reserved_quantity` field
# should be 0.
if quant.reserved_quantity != 0:
quant.write({"reserved_quantity": 0})
else:
# If a quant is in a reservable location, its `reserved_quantity` should be exactly the sum
# of the `product_qty` of all the partially_available / assigned move lines with the same
# characteristics.
if quant.reserved_quantity == 0:
if move_lines:
move_lines.with_context(bypass_reservation_update=True).write(
{"product_uom_qty": 0}
)
elif quant.reserved_quantity < 0:
quant.write({"reserved_quantity": 0})
if move_lines:
move_lines.with_context(bypass_reservation_update=True).write(
{"product_uom_qty": 0}
)
else:
if reserved_on_move_lines != quant.reserved_quantity:
move_lines.with_context(bypass_reservation_update=True).write(
{"product_uom_qty": 0}
)
quant.write({"reserved_quantity": 0})
else:
if any(move_line.product_qty < 0 for move_line in move_lines):
move_lines.with_context(bypass_reservation_update=True).write(
{"product_uom_qty": 0}
)
quant.write({"reserved_quantity": 0})
move_lines = env["stock.move.line"].search(
[
("product_id.type", "=", "product"),
("product_qty", "!=", 0),
("id", "not in", move_line_ids),
]
)
move_lines_to_unreserve = []
for move_line in move_lines:
if not move_line.location_id.should_bypass_reservation():
move_lines_to_unreserve.append(move_line.id)
if len(move_lines_to_unreserve) > 1:
env.cr.execute(
"""
UPDATE stock_move_line SET product_uom_qty = 0, product_qty = 0 WHERE id in %s ;
"""
% (tuple(move_lines_to_unreserve),)
)
elif len(move_lines_to_unreserve) == 1:
env.cr.execute(
"""
UPDATE stock_move_line SET product_uom_qty = 0, product_qty = 0 WHERE id = %s ;
"""
% (move_lines_to_unreserve[0])
)