Rapprochement Partiel Automatique

Goal This wizard replaces standard auto-reconcile with a manual allocation workflow:

pick one payment journal item, add multiple target journal items (invoices/entries), enter amount per target, reconcile those amounts, leaving any remainder open. File: account_auto_partial_reconcile_wizard.py

1) Main wizard model AccountAutoPartialReconcileWizard is a TransientModel (temporary records used in popups).

Key fields:

company_id, company_currency_id: company context + currency. source_line_ids: lines passed from current list/domain (when launched from Reconcile list). available_payment_line_ids: computed candidates for payment line selection. payment_line_id: the line you want to allocate from (your payment/open credit/debit). available_counterpart_line_ids: computed candidates to allocate to. partner_id, account_id: shown from selected payment line. allocation_line_ids: the one2many rows where you choose item + amount. payment_residual: open residual of payment line. total_allocated_amount: sum of entered allocation amounts. remaining_amount: payment_residual - total_allocated_amount. 2) Default loading default_get:

reads context domain (self.env.context.get('domain')), loads matching journal items into source_line_ids, if only 1 line is found, auto-sets payment_line_id. So popup can start prefilled depending on where you open it.

3) Amount computation _compute_amounts:

updates payment_residual, sums allocation amounts, computes remaining balance live in the popup. 4) Candidate payment lines _compute_available_payment_line_ids:

if source_line_ids exists, limits to those. otherwise searches all open reconcilable posted lines in company. 5) Candidate counterpart lines _compute_available_counterpart_line_ids:

needs payment_line_id. uses _get_counterpart_domain(payment_line): same company, posted, unreconciled, same account, opposite sign (balance < 0 or > 0 depending on payment line), optionally same partner. if source_line_ids exists, intersects with them. 6) Payment change behavior _onchange_payment_line_id:

clears existing allocation rows when payment line changes. 7) Reconciliation helpers _compute_currency_amount_for_line:

converts company amount into line currency proportionally using current residuals. needed for proper multi-currency partial reconcile values. _create_one_partial(payment_line, counterpart_line, amount_company):

validates line exigibility, determines debit/credit side, prepares partial reconcile values via Odoo core _prepare_reconciliation_partials, creates account.partial.reconcile, creates exchange difference move if needed, creates cash-basis moves if applicable. _create_full_reconcile_for_completed_groups:

after partials, checks matched groups (matching_number), if a group is now fully settled and not yet full-reconciled, creates account.full.reconcile. 8) Main button action action_partial_reconcile (called by Reconcile button):

ensures payment line exists. ensures allocation rows exist with positive amounts. checks total allocation does not exceed payment residual. loops each allocation row: validates same company/account and opposite sign, validates amount <= current possible amount, performs one partial reconcile. then tries to finalize full reconciles where possible. returns action opening related journal items. 9) Allocation line model AccountAutoPartialReconcileWizardLine:

each row = one counterpart + one amount. fields: wizard_id: parent wizard. counterpart_line_id: selected target journal item. amount: amount for that item. max_amount: current open residual of target. _sql_constraints: same counterpart cannot be added twice in same wizard. _onchange_counterpart_line_id: prefill amount with full open residual. _check_amount: amount must be > 0 and <= open amount. How to use in UI

Open Accounting -> Actions -> Reconcile. Click Auto-reconcile (your module redirects to this popup). Select Payment Journal Item. In Allocation Lines, add rows: choose Journal Item, enter Amount. Click Reconcile. Remaining payment stays open for later reconciliation.