[FIX] account: add date field in reconciliation writeoff form

purpose:
    when creating a writeoff from the manual reconciliation widget (invoices & payment matching), there's no way to specify the date of the writeoff journal entry

specs:
    in v12, add a date field in the js and set the date of the writeoff entry accordingly

Was PR #29794
Was OPW 1896593

closes odoo/odoo#30676

addons/account/models/account_move.py

@@ -980,8 +980,9 @@ class AccountMoveLine(models.Model):
                     raise UserError(_("Either pass both debit and credit or none."))
                 if 'date' not in vals:
                     vals['date'] = self._context.get('date_p') or fields.Date.today()
-                    if vals['date'] < date:
-                        date = vals['date']
+                vals['date'] = fields.Date.to_date(vals['date'])
+                if vals['date'] and vals['date'] < date:
+                    date = vals['date']
                 if 'name' not in vals:
                     vals['name'] = self._context.get('comment') or _('Write-Off')
                 if 'analytic_account_id' not in vals:

addons/account/static/src/js/reconciliation/reconciliation_model.js

@@ -854,6 +854,7 @@ var StatementModel = BasicModel.extend({
                                 'tax_id': [tax.id, null],
                                 'amount': tax.amount,
                                 'label': tax.name,
+                                'date': prop.date,
                                 'account_id': tax.account_id ? [tax.account_id, null] : prop.account_id,
                                 'analytic': tax.analytic,
                                 'is_tax': true,
@@ -1067,6 +1068,7 @@ var StatementModel = BasicModel.extend({
      */
     _formatQuickCreate: function (line, values) {
         values = values || {};
+        var today = new moment().utc().format();
         var account = this._formatNameGet(values.account_id);
         var formatOptions = {
             currency_id: line.st_line.currency_id,
@@ -1083,6 +1085,7 @@ var StatementModel = BasicModel.extend({
             'tax_id': this._formatNameGet(values.tax_id),
             'debit': 0,
             'credit': 0,
+            'date': values.date ? values.date : field_utils.parse.date(today, {}, {isUTC: true}),
             'base_amount': values.amount_type !== "percentage" ?
                 (amount) : line.balance.amount * values.amount / 100,
             'percent': values.amount_type === "percentage" ? values.amount : null,
@@ -1233,7 +1236,7 @@ var StatementModel = BasicModel.extend({
  * datas allowing manual reconciliation
  */
 var ManualModel = StatementModel.extend({
-    quickCreateFields: ['account_id', 'journal_id', 'amount', 'analytic_account_id', 'label', 'tax_id', 'force_tax_included', 'analytic_tag_ids'],
+    quickCreateFields: ['account_id', 'journal_id', 'amount', 'analytic_account_id', 'label', 'tax_id', 'force_tax_included', 'analytic_tag_ids', 'date'],
 
     //--------------------------------------------------------------------------
     // Public
@@ -1628,6 +1631,12 @@ var ManualModel = StatementModel.extend({
             })
             .then(this._formatMoveLine.bind(this, handle));
     },
+    
+    _formatToProcessReconciliation: function (line, prop) {
+        var result = this._super(line, prop);
+        result['date'] = prop.date;
+        return result;
+    },
 });
 
 return {

addons/account/static/src/js/reconciliation/reconciliation_renderer.js

@@ -556,10 +556,13 @@ var LineRenderer = Widget.extend(FieldManagerMixin, {
         }, {
             type: 'float',
             name: 'amount',
+        }, {
+            type: 'char', //TODO is it a bug or a feature when type date exists ?
+            name: 'date',
         }], {
             account_id: {string: _t("Account")},
             label: {string: _t("Label")},
-            amount: {string: _t("Account")}
+            amount: {string: _t("Account")},
         }).then(function (recordID) {
             self.handleCreateRecord = recordID;
             var record = self.model.get(self.handleCreateRecord);
@@ -587,6 +590,9 @@ var LineRenderer = Widget.extend(FieldManagerMixin, {
 
             self.fields.amount = new basic_fields.FieldFloat(self,
                 'amount', record, {mode: 'edit'});
+            
+            self.fields.date = new basic_fields.FieldDate(self,
+                'date', record, {mode: 'edit'});
 
             var $create = $(qweb.render("reconciliation.line.create", {'state': state}));
             self.fields.account_id.appendTo($create.find('.create_account_id .o_td_field'))
@@ -600,6 +606,7 @@ var LineRenderer = Widget.extend(FieldManagerMixin, {
                 .then(addRequiredStyle.bind(self, self.fields.label));
             self.fields.amount.appendTo($create.find('.create_amount .o_td_field'))
                 .then(addRequiredStyle.bind(self, self.fields.amount));
+            self.fields.date.appendTo($create.find('.create_date .o_td_field'))
             self.$('.create').append($create);
 
             function addRequiredStyle(widget) {
@@ -888,6 +895,7 @@ var ManualLineRenderer = LineRenderer.extend({
     _renderCreate: function (state) {
         this._super(state);
         this.$('.create .create_journal_id').show();
+        this.$('.create .create_date').removeClass('d-none')
         this.$('.create .create_journal_id .o_input').addClass('o_required_modifier');
     },
 

addons/account/static/src/xml/account_reconciliation.xml

@@ -212,6 +212,10 @@
                 <td class="o_td_label">Tax Included in Price</td>
                 <td class="o_td_field"></td>
             </tr>
+            <tr class="create_date d-none">
+                <td class="o_td_label">Writeoff Date</td>
+                <td class="o_td_field"></td>
+            </tr>
         </tbody>
     </table>
     <div class="add_line_container">

addons/account/static/tests/reconciliation_tests.js

@@ -650,8 +650,8 @@ QUnit.module('account', {
         assert.strictEqual(widget.$('.o_input_dropdown input').val(), "Agrolait", "the partner many2one should display agrolait");
         assert.strictEqual(clientAction.widgets[2].$('.o_input_dropdown input').val(), "Camptocamp", "the partner many2one should display Camptocamp");
         widget.$('.accounting_view tfoot td:first').trigger('click');
-        assert.strictEqual(widget.$('.create input.o_input').length, 7,
-            "create panel should contain 7 fields (account_id, tax_id, journal_id, analytic_account_id, analytic_tag_ids, label, amount)");
+        assert.strictEqual(widget.$('.create input.o_input').length, 8,
+            "create panel should contain 7 fields (account_id, tax_id, journal_id, analytic_account_id, analytic_tag_ids, label, amount, date)");
         assert.strictEqual(widget.$('.create .create_account_id .o_required_modifier, .create .create_label .o_required_modifier, .create .create_amount .o_required_modifier').length, 3,
             "account_id, label and amount should be required fields");
         assert.strictEqual(widget.$('.create .create_label input').val(), 'SAJ/2014/002 and SAJ/2014/003',