fix: multiple issues in Payment Request

erpnext/accounts/doctype/payment_entry/payment_entry.js

@@ -174,6 +174,17 @@ frappe.ui.form.on("Payment Entry", {
 			};
 		});
 
+		frm.set_query("payment_request", "references", function (doc, cdt, cdn) {
+			const row = frappe.get_doc(cdt, cdn);
+			return {
+				query: "erpnext.accounts.doctype.payment_request.payment_request.get_open_payment_requests_query",
+				filters: {
+					reference_doctype: row.reference_doctype,
+					reference_name: row.reference_name,
+				},
+			};
+		});
+
 		frm.set_query("sales_taxes_and_charges_template", function () {
 			return {
 				filters: {
@@ -191,7 +202,16 @@ frappe.ui.form.on("Payment Entry", {
 				},
 			};
 		});
+
+		// todo: fetch payment term outstanding amount also
+		frm.add_fetch(
+			"payment_request",
+			"outstanding_amount",
+			"payment_request_outstanding",
+			"Payment Entry Reference"
+		);
 	},
+
 	refresh: function (frm) {
 		erpnext.hide_company(frm);
 		frm.events.hide_unhide_fields(frm);
@@ -216,6 +236,7 @@ frappe.ui.form.on("Payment Entry", {
 			);
 		}
 		erpnext.accounts.unreconcile_payment.add_unreconcile_btn(frm);
+		frappe.flags.allocate_payment_amount = true;
 	},
 
 	validate_company: (frm) => {
@@ -797,7 +818,7 @@ frappe.ui.form.on("Payment Entry", {
 		);
 
 		if (frm.doc.payment_type == "Pay")
-			frm.events.allocate_party_amount_against_ref_docs(frm, frm.doc.received_amount, 1);
+			frm.events.allocate_party_amount_against_ref_docs(frm, frm.doc.received_amount, true);
 		else frm.events.set_unallocated_amount(frm);
 
 		frm.set_paid_amount_based_on_received_amount = false;
@@ -818,7 +839,7 @@ frappe.ui.form.on("Payment Entry", {
 		}
 
 		if (frm.doc.payment_type == "Receive")
-			frm.events.allocate_party_amount_against_ref_docs(frm, frm.doc.paid_amount, 1);
+			frm.events.allocate_party_amount_against_ref_docs(frm, frm.doc.paid_amount, true);
 		else frm.events.set_unallocated_amount(frm);
 	},
 
@@ -989,6 +1010,7 @@ frappe.ui.form.on("Payment Entry", {
 						c.outstanding_amount = d.outstanding_amount;
 						c.bill_no = d.bill_no;
 						c.payment_term = d.payment_term;
+						c.payment_term_outstanding = d.payment_term_outstanding;
 						c.allocated_amount = d.allocated_amount;
 						c.account = d.account;
 
@@ -1038,7 +1060,8 @@ frappe.ui.form.on("Payment Entry", {
 
 				frm.events.allocate_party_amount_against_ref_docs(
 					frm,
-					frm.doc.payment_type == "Receive" ? frm.doc.paid_amount : frm.doc.received_amount
+					frm.doc.payment_type == "Receive" ? frm.doc.paid_amount : frm.doc.received_amount,
+					false
 				);
 			},
 		});
@@ -1052,93 +1075,13 @@ frappe.ui.form.on("Payment Entry", {
 		return ["Sales Invoice", "Purchase Invoice"];
 	},
 
-	allocate_party_amount_against_ref_docs: function (frm, paid_amount, paid_amount_change) {
-		var total_positive_outstanding_including_order = 0;
-		var total_negative_outstanding = 0;
-		var total_deductions = frappe.utils.sum(
-			$.map(frm.doc.deductions || [], function (d) {
-				return flt(d.amount);
-			})
-		);
-
-		paid_amount -= total_deductions;
-
-		$.each(frm.doc.references || [], function (i, row) {
-			if (flt(row.outstanding_amount) > 0)
-				total_positive_outstanding_including_order += flt(row.outstanding_amount);
-			else total_negative_outstanding += Math.abs(flt(row.outstanding_amount));
+	allocate_party_amount_against_ref_docs: async function (frm, paid_amount, paid_amount_change) {
+		await frm.call("allocate_amount_to_references", {
+			paid_amount: paid_amount,
+			paid_amount_change: paid_amount_change,
+			allocate_payment_amount: frappe.flags.allocate_payment_amount ?? false,
 		});
 
-		var allocated_negative_outstanding = 0;
-		if (
-			(frm.doc.payment_type == "Receive" && frm.doc.party_type == "Customer") ||
-			(frm.doc.payment_type == "Pay" && frm.doc.party_type == "Supplier") ||
-			(frm.doc.payment_type == "Pay" && frm.doc.party_type == "Employee")
-		) {
-			if (total_positive_outstanding_including_order > paid_amount) {
-				var remaining_outstanding = total_positive_outstanding_including_order - paid_amount;
-				allocated_negative_outstanding =
-					total_negative_outstanding < remaining_outstanding
-						? total_negative_outstanding
-						: remaining_outstanding;
-			}
-
-			var allocated_positive_outstanding = paid_amount + allocated_negative_outstanding;
-		} else if (["Customer", "Supplier"].includes(frm.doc.party_type)) {
-			total_negative_outstanding = flt(total_negative_outstanding, precision("outstanding_amount"));
-			if (paid_amount > total_negative_outstanding) {
-				if (total_negative_outstanding == 0) {
-					frappe.msgprint(
-						__("Cannot {0} {1} {2} without any negative outstanding invoice", [
-							frm.doc.payment_type,
-							frm.doc.party_type == "Customer" ? "to" : "from",
-							frm.doc.party_type,
-						])
-					);
-					return false;
-				} else {
-					frappe.msgprint(
-						__("Paid Amount cannot be greater than total negative outstanding amount {0}", [
-							total_negative_outstanding,
-						])
-					);
-					return false;
-				}
-			} else {
-				allocated_positive_outstanding = total_negative_outstanding - paid_amount;
-				allocated_negative_outstanding =
-					paid_amount +
-					(total_positive_outstanding_including_order < allocated_positive_outstanding
-						? total_positive_outstanding_including_order
-						: allocated_positive_outstanding);
-			}
-		}
-
-		$.each(frm.doc.references || [], function (i, row) {
-			if (frappe.flags.allocate_payment_amount == 0) {
-				//If allocate payment amount checkbox is unchecked, set zero to allocate amount
-				row.allocated_amount = 0;
-			} else if (
-				frappe.flags.allocate_payment_amount != 0 &&
-				(!row.allocated_amount || paid_amount_change)
-			) {
-				if (row.outstanding_amount > 0 && allocated_positive_outstanding >= 0) {
-					row.allocated_amount =
-						row.outstanding_amount >= allocated_positive_outstanding
-							? allocated_positive_outstanding
-							: row.outstanding_amount;
-					allocated_positive_outstanding -= flt(row.allocated_amount);
-				} else if (row.outstanding_amount < 0 && allocated_negative_outstanding) {
-					row.allocated_amount =
-						Math.abs(row.outstanding_amount) >= allocated_negative_outstanding
-							? -1 * allocated_negative_outstanding
-							: row.outstanding_amount;
-					allocated_negative_outstanding -= Math.abs(flt(row.allocated_amount));
-				}
-			}
-		});
-
-		frm.refresh_fields();
 		frm.events.set_total_allocated_amount(frm);
 	},
 
@@ -1686,6 +1629,61 @@ frappe.ui.form.on("Payment Entry", {
 
 		return current_tax_amount;
 	},
+
+	cost_center: function (frm) {
+		if (frm.doc.posting_date && (frm.doc.paid_from || frm.doc.paid_to)) {
+			return frappe.call({
+				method: "erpnext.accounts.doctype.payment_entry.payment_entry.get_party_and_account_balance",
+				args: {
+					company: frm.doc.company,
+					date: frm.doc.posting_date,
+					paid_from: frm.doc.paid_from,
+					paid_to: frm.doc.paid_to,
+					ptype: frm.doc.party_type,
+					pty: frm.doc.party,
+					cost_center: frm.doc.cost_center,
+				},
+				callback: function (r, rt) {
+					if (r.message) {
+						frappe.run_serially([
+							() => {
+								frm.set_value(
+									"paid_from_account_balance",
+									r.message.paid_from_account_balance
+								);
+								frm.set_value("paid_to_account_balance", r.message.paid_to_account_balance);
+								frm.set_value("party_balance", r.message.party_balance);
+							},
+						]);
+					}
+				},
+			});
+		}
+	},
+
+	after_save: function (frm) {
+		const { matched_payment_requests } = frappe.last_response;
+		if (!matched_payment_requests) return;
+
+		const COLUMN_LABEL = [
+			[__("Reference DocType"), __("Reference Name"), __("Allocated Amount"), __("Payment Request")],
+		];
+
+		frappe.msgprint({
+			title: __("Unset Matched Payment Request"),
+			message: COLUMN_LABEL.concat(matched_payment_requests),
+			as_table: true,
+			primary_action: {
+				label: __("Allocate Payment Request"),
+				action() {
+					frappe.hide_msgprint();
+					frm.call("set_matched_payment_requests", { matched_payment_requests }, () => {
+						frm.dirty();
+					});
+				},
+			},
+		});
+	},
 });
 
 frappe.ui.form.on("Payment Entry Reference", {
@@ -1778,35 +1776,3 @@ frappe.ui.form.on("Payment Entry Deduction", {
 		frm.events.set_unallocated_amount(frm);
 	},
 });
-frappe.ui.form.on("Payment Entry", {
-	cost_center: function (frm) {
-		if (frm.doc.posting_date && (frm.doc.paid_from || frm.doc.paid_to)) {
-			return frappe.call({
-				method: "erpnext.accounts.doctype.payment_entry.payment_entry.get_party_and_account_balance",
-				args: {
-					company: frm.doc.company,
-					date: frm.doc.posting_date,
-					paid_from: frm.doc.paid_from,
-					paid_to: frm.doc.paid_to,
-					ptype: frm.doc.party_type,
-					pty: frm.doc.party,
-					cost_center: frm.doc.cost_center,
-				},
-				callback: function (r, rt) {
-					if (r.message) {
-						frappe.run_serially([
-							() => {
-								frm.set_value(
-									"paid_from_account_balance",
-									r.message.paid_from_account_balance
-								);
-								frm.set_value("paid_to_account_balance", r.message.paid_to_account_balance);
-								frm.set_value("party_balance", r.message.party_balance);
-							},
-						]);
-					}
-				},
-			});
-		}
-	},
-});