brotherton-erpnext/erpnext/public/js/utils/barcode_scanner.js
2022-11-03 14:57:36 +05:30

435 lines
12 KiB
JavaScript

erpnext.utils.BarcodeScanner = class BarcodeScanner {
constructor(opts) {
this.frm = opts.frm;
// field from which to capture input of scanned data
this.scan_field_name = opts.scan_field_name || "scan_barcode";
this.scan_barcode_field = this.frm.fields_dict[this.scan_field_name];
this.barcode_field = opts.barcode_field || "barcode";
this.serial_no_field = opts.serial_no_field || "serial_no";
this.batch_no_field = opts.batch_no_field || "batch_no";
this.uom_field = opts.uom_field || "uom";
this.qty_field = opts.qty_field || "qty";
// field name on row which defines max quantity to be scanned e.g. picklist
this.max_qty_field = opts.max_qty_field;
// scanner won't add a new row if this flag is set.
this.dont_allow_new_row = opts.dont_allow_new_row;
// scanner will ask user to type the quantity instead of incrementing by 1
this.prompt_qty = opts.prompt_qty;
this.items_table_name = opts.items_table_name || "items";
this.items_table = this.frm.doc[this.items_table_name];
// optional sound name to play when scan either fails or passes.
// see https://frappeframework.com/docs/v14/user/en/python-api/hooks#sounds
this.success_sound = opts.play_success_sound;
this.fail_sound = opts.play_fail_sound;
// any API that takes `search_value` as input and returns dictionary as follows
// {
// item_code: "HORSESHOE", // present if any item was found
// bar_code: "123456", // present if barcode was scanned
// batch_no: "LOT12", // present if batch was scanned
// serial_no: "987XYZ", // present if serial no was scanned
// uom: "Kg", // present if barcode UOM is different from default
// }
this.scan_api = opts.scan_api || "erpnext.stock.utils.scan_barcode";
}
process_scan() {
return new Promise((resolve, reject) => {
let me = this;
const input = this.scan_barcode_field.value;
this.scan_barcode_field.set_value("");
if (!input) {
return;
}
this.scan_api_call(input, (r) => {
const data = r && r.message;
if (!data || Object.keys(data).length === 0) {
this.show_alert(__("Cannot find Item with this Barcode"), "red");
this.clean_up();
this.play_fail_sound();
reject();
return;
}
me.update_table(data).then(row => {
this.play_success_sound();
resolve(row);
}).catch(() => {
this.play_fail_sound();
reject();
});
});
});
}
scan_api_call(input, callback) {
frappe
.call({
method: this.scan_api,
args: {
search_value: input,
},
})
.then((r) => {
callback(r);
});
}
update_table(data) {
return new Promise((resolve, reject) => {
let cur_grid = this.frm.fields_dict[this.items_table_name].grid;
const {item_code, barcode, batch_no, serial_no, uom} = data;
let row = this.get_row_to_modify_on_scan(item_code, batch_no, uom, barcode);
this.is_new_row = false;
if (!row) {
if (this.dont_allow_new_row) {
this.show_alert(__("Maximum quantity scanned for item {0}.", [item_code]), "red");
this.clean_up();
reject();
return;
}
this.is_new_row = true;
// add new row if new item/batch is scanned
row = frappe.model.add_child(this.frm.doc, cur_grid.doctype, this.items_table_name);
// trigger any row add triggers defined on child table.
this.frm.script_manager.trigger(`${this.items_table_name}_add`, row.doctype, row.name);
this.frm.has_items = false;
}
if (this.is_duplicate_serial_no(row, serial_no)) {
this.clean_up();
reject();
return;
}
frappe.run_serially([
() => this.set_selector_trigger_flag(data),
() => this.set_item(row, item_code, barcode, batch_no, serial_no).then(qty => {
this.show_scan_message(row.idx, row.item_code, qty);
}),
() => this.set_barcode_uom(row, uom),
() => this.set_serial_no(row, serial_no),
() => this.set_batch_no(row, batch_no),
() => this.set_barcode(row, barcode),
() => this.clean_up(),
() => this.revert_selector_flag(),
() => resolve(row)
]);
});
}
// batch and serial selector is reduandant when all info can be added by scan
// this flag on item row is used by transaction.js to avoid triggering selector
set_selector_trigger_flag(data) {
const {batch_no, serial_no, has_batch_no, has_serial_no} = data;
const require_selecting_batch = has_batch_no && !batch_no;
const require_selecting_serial = has_serial_no && !serial_no;
if (!(require_selecting_batch || require_selecting_serial)) {
frappe.flags.hide_serial_batch_dialog = true;
}
}
revert_selector_flag() {
frappe.flags.hide_serial_batch_dialog = false;
}
set_item(row, item_code, barcode, batch_no, serial_no) {
return new Promise(resolve => {
const increment = async (value = 1) => {
const item_data = {item_code: item_code};
item_data[this.qty_field] = Number((row[this.qty_field] || 0)) + Number(value);
await frappe.model.set_value(row.doctype, row.name, item_data);
return value;
};
if (this.prompt_qty) {
frappe.prompt(__("Please enter quantity for item {0}", [item_code]), ({value}) => {
increment(value).then((value) => resolve(value));
});
} else if (this.frm.has_items) {
this.prepare_item_for_scan(row, item_code, barcode, batch_no, serial_no);
} else {
increment().then((value) => resolve(value));
}
});
}
prepare_item_for_scan(row, item_code, barcode, batch_no, serial_no) {
var me = this;
this.dialog = new frappe.ui.Dialog({
title: __("Scan barcode for item {0}", [item_code]),
fields: me.get_fields_for_dialog(row, item_code, barcode, batch_no, serial_no),
})
this.dialog.set_primary_action(__("Update"), () => {
const item_data = {item_code: item_code};
item_data[this.qty_field] = this.dialog.get_value("scanned_qty");
item_data["has_item_scanned"] = 1;
this.remaining_qty = flt(this.dialog.get_value("qty")) - flt(this.dialog.get_value("scanned_qty"));
frappe.model.set_value(row.doctype, row.name, item_data);
frappe.run_serially([
() => this.set_batch_no(row, this.dialog.get_value("batch_no")),
() => this.set_barcode(row, this.dialog.get_value("barcode")),
() => this.set_serial_no(row, this.dialog.get_value("serial_no")),
() => this.add_child_for_remaining_qty(row),
() => this.clean_up()
]);
this.dialog.hide();
});
this.dialog.show();
this.$scan_btn = this.dialog.$wrapper.find(".link-btn");
this.$scan_btn.css("display", "inline");
}
get_fields_for_dialog(row, item_code, barcode, batch_no, serial_no) {
let fields = [
{
fieldtype: "Data",
fieldname: "barcode_scanner",
options: "Barcode",
label: __("Scan Barcode"),
onchange: (e) => {
if (!e) {
return;
}
if (e.target.value) {
this.scan_api_call(e.target.value, (r) => {
if (r.message) {
this.update_dialog_values(item_code, r);
}
})
}
}
},
{
fieldtype: "Section Break",
},
{
fieldtype: "Float",
fieldname: "qty",
label: __("Quantity to Scan"),
default: row[this.qty_field] || 1,
},
{
fieldtype: "Column Break",
fieldname: "column_break_1",
},
{
fieldtype: "Float",
read_only: 1,
fieldname: "scanned_qty",
label: __("Scanned Quantity"),
default: 1,
},
{
fieldtype: "Section Break",
}
]
if (batch_no) {
fields.push({
fieldtype: "Link",
fieldname: "batch_no",
options: "Batch No",
label: __("Batch No"),
default: batch_no,
read_only: 1,
hidden: 1
});
}
if (serial_no) {
fields.push({
fieldtype: "Small Text",
fieldname: "serial_no",
label: __("Serial Nos"),
default: serial_no,
read_only: 1,
});
}
if (barcode) {
fields.push({
fieldtype: "Data",
fieldname: "barcode",
options: "Barcode",
label: __("Barcode"),
default: barcode,
read_only: 1,
hidden: 1
});
}
return fields;
}
update_dialog_values(scanned_item, r) {
const {item_code, barcode, batch_no, serial_no} = r.message;
this.dialog.set_value("barcode_scanner", "");
if (item_code === scanned_item &&
(this.dialog.get_value("barcode") === barcode || batch_no || serial_no)) {
if (batch_no) {
this.dialog.set_value("batch_no", batch_no);
}
if (serial_no) {
this.validate_duplicate_serial_no(serial_no);
let serial_nos = this.dialog.get_value("serial_no") + "\n" + serial_no;
this.dialog.set_value("serial_no", serial_nos);
}
let qty = flt(this.dialog.get_value("scanned_qty")) + 1.0;
this.dialog.set_value("scanned_qty", qty);
}
}
validate_duplicate_serial_no(serial_no) {
let serial_nos = this.dialog.get_value("serial_no") ?
this.dialog.get_value("serial_no").split("\n") : [];
if (in_list(serial_nos, serial_no)) {
frappe.throw(__("Serial No {0} already scanned", [serial_no]));
}
}
add_child_for_remaining_qty(prev_row) {
if (this.remaining_qty && this.remaining_qty >0) {
let cur_grid = this.frm.fields_dict[this.items_table_name].grid;
let row = frappe.model.add_child(this.frm.doc, cur_grid.doctype, this.items_table_name);
let ignore_fields = ["name", "idx", "batch_no", "barcode",
"received_qty", "serial_no", "has_item_scanned"];
for (let key in prev_row) {
if (in_list(ignore_fields, key)) {
continue;
}
row[key] = prev_row[key];
}
row[this.qty_field] = this.remaining_qty;
if (this.qty_field == "qty" && frappe.meta.has_field(row.doctype, "stock_qty")) {
row["stock_qty"] = this.remaining_qty * row.conversion_factor;
}
this.frm.script_manager.trigger("item_code", row.doctype, row.name);
}
}
async set_serial_no(row, serial_no) {
if (serial_no && frappe.meta.has_field(row.doctype, this.serial_no_field)) {
const existing_serial_nos = row[this.serial_no_field];
let new_serial_nos = "";
if (!!existing_serial_nos) {
new_serial_nos = existing_serial_nos + "\n" + serial_no;
} else {
new_serial_nos = serial_no;
}
await frappe.model.set_value(row.doctype, row.name, this.serial_no_field, new_serial_nos);
}
}
async set_barcode_uom(row, uom) {
if (uom && frappe.meta.has_field(row.doctype, this.uom_field)) {
await frappe.model.set_value(row.doctype, row.name, this.uom_field, uom);
}
}
async set_batch_no(row, batch_no) {
if (batch_no && frappe.meta.has_field(row.doctype, this.batch_no_field)) {
await frappe.model.set_value(row.doctype, row.name, this.batch_no_field, batch_no);
}
}
async set_barcode(row, barcode) {
if (barcode && frappe.meta.has_field(row.doctype, this.barcode_field)) {
await frappe.model.set_value(row.doctype, row.name, this.barcode_field, barcode);
}
}
show_scan_message(idx, exist = null, qty = 1) {
// show new row or qty increase toast
if (exist) {
this.show_alert(__("Row #{0}: Qty increased by {1}", [idx, qty]), "green");
} else {
this.show_alert(__("Row #{0}: Item added", [idx]), "green")
}
}
is_duplicate_serial_no(row, serial_no) {
const is_duplicate = row[this.serial_no_field]?.includes(serial_no);
if (is_duplicate) {
this.show_alert(__("Serial No {0} is already added", [serial_no]), "orange");
}
return is_duplicate;
}
get_row_to_modify_on_scan(item_code, batch_no, uom, barcode) {
let cur_grid = this.frm.fields_dict[this.items_table_name].grid;
// Check if batch is scanned and table has batch no field
let is_batch_no_scan = batch_no && frappe.meta.has_field(cur_grid.doctype, this.batch_no_field);
let check_max_qty = this.max_qty_field && frappe.meta.has_field(cur_grid.doctype, this.max_qty_field);
const matching_row = (row) => {
const item_match = row.item_code == item_code;
const batch_match = (!row[this.batch_no_field] || row[this.batch_no_field] == batch_no);
const uom_match = !uom || row[this.uom_field] == uom;
const qty_in_limit = flt(row[this.qty_field]) < flt(row[this.max_qty_field]);
const item_scanned = row.has_item_scanned;
return item_match
&& uom_match
&& !item_scanned
&& (!is_batch_no_scan || batch_match)
&& (!check_max_qty || qty_in_limit)
}
return this.items_table.find(matching_row) || this.get_existing_blank_row();
}
get_existing_blank_row() {
return this.items_table.find((d) => !d.item_code);
}
play_success_sound() {
this.success_sound && frappe.utils.play_sound(this.success_sound);
}
play_fail_sound() {
this.fail_sound && frappe.utils.play_sound(this.fail_sound);
}
clean_up() {
this.scan_barcode_field.set_value("");
refresh_field(this.items_table_name);
}
show_alert(msg, indicator, duration=3) {
frappe.show_alert({message: msg, indicator: indicator}, duration);
}
};