odoo/addons/point_of_sale/static/src/js/models.js

1136 lines
47 KiB
JavaScript

function openerp_pos_models(instance, module){ //module is instance.point_of_sale
var QWeb = instance.web.qweb;
var _t = instance.web._t;
var round_di = instance.web.round_decimals;
var round_pr = instance.web.round_precision
// The PosModel contains the Point Of Sale's representation of the backend.
// Since the PoS must work in standalone ( Without connection to the server )
// it must contains a representation of the server's PoS backend.
// (taxes, product list, configuration options, etc.) this representation
// is fetched and stored by the PosModel at the initialisation.
// this is done asynchronously, a ready deferred alows the GUI to wait interactively
// for the loading to be completed
// There is a single instance of the PosModel for each Front-End instance, it is usually called
// 'pos' and is available to all widgets extending PosWidget.
module.PosModel = Backbone.Model.extend({
initialize: function(session, attributes) {
Backbone.Model.prototype.initialize.call(this, attributes);
var self = this;
this.session = session;
this.flush_mutex = new $.Mutex(); // used to make sure the orders are sent to the server once at time
this.pos_widget = attributes.pos_widget;
this.proxy = new module.ProxyDevice(this); // used to communicate to the hardware devices via a local proxy
this.barcode_reader = new module.BarcodeReader({'pos': this, proxy:this.proxy}); // used to read barcodes
this.proxy_queue = new module.JobQueue(); // used to prevent parallels communications to the proxy
this.db = new module.PosDB(); // a local database used to search trough products and categories & store pending orders
this.debug = jQuery.deparam(jQuery.param.querystring()).debug !== undefined; //debug mode
// Business data; loaded from the server at launch
this.accounting_precision = 2; //TODO
this.company_logo = null;
this.company_logo_base64 = '';
this.currency = null;
this.shop = null;
this.company = null;
this.user = null;
this.users = [];
this.partners = [];
this.cashier = null;
this.cashregisters = [];
this.bankstatements = [];
this.taxes = [];
this.pos_session = null;
this.config = null;
this.units = [];
this.units_by_id = {};
this.pricelist = null;
window.posmodel = this;
// these dynamic attributes can be watched for change by other models or widgets
this.set({
'synch': { state:'connected', pending:0 },
'orders': new module.OrderCollection(),
'selectedOrder': null,
});
this.bind('change:synch',function(pos,synch){
clearTimeout(self.synch_timeout);
self.synch_timeout = setTimeout(function(){
if(synch.state !== 'disconnected' && synch.pending > 0){
self.set('synch',{state:'disconnected', pending:synch.pending});
}
},3000);
});
this.get('orders').bind('remove', function(order,_unused_,options){
self.on_removed_order(order,options.index,options.reason);
});
// We fetch the backend data on the server asynchronously. this is done only when the pos user interface is launched,
// Any change on this data made on the server is thus not reflected on the point of sale until it is relaunched.
// when all the data has loaded, we compute some stuff, and declare the Pos ready to be used.
this.ready = this.load_server_data()
.then(function(){
if(self.config.use_proxy){
return self.connect_to_proxy();
}
});
},
// releases ressources holds by the model at the end of life of the posmodel
destroy: function(){
// FIXME, should wait for flushing, return a deferred to indicate successfull destruction
// this.flush();
this.proxy.close();
this.barcode_reader.disconnect();
this.barcode_reader.disconnect_from_proxy();
},
connect_to_proxy: function(){
var self = this;
var done = new $.Deferred();
this.barcode_reader.disconnect_from_proxy();
this.pos_widget.loading_message(_t('Connecting to the PosBox'),0);
this.pos_widget.loading_skip(function(){
self.proxy.stop_searching();
});
this.proxy.autoconnect({
force_ip: self.config.proxy_ip || undefined,
progress: function(prog){
self.pos_widget.loading_progress(prog);
},
}).then(function(){
if(self.config.iface_scan_via_proxy){
self.barcode_reader.connect_to_proxy();
}
}).always(function(){
done.resolve();
});
return done;
},
// helper function to load data from the server
fetch: function(model, fields, domain, ctx){
this._load_progress = (this._load_progress || 0) + 0.05;
this.pos_widget.loading_message(_t('Loading')+' '+model,this._load_progress);
return new instance.web.Model(model).query(fields).filter(domain).context(ctx).all()
},
// loads all the needed data on the sever. returns a deferred indicating when all the data has loaded.
load_server_data: function(){
var self = this;
var loaded = self.fetch('res.users',['name','company_id'],[['id','=',this.session.uid]])
.then(function(users){
self.user = users[0];
return self.fetch('res.company',
[
'currency_id',
'email',
'website',
'company_registry',
'vat',
'name',
'phone',
'partner_id',
],
[['id','=',users[0].company_id[0]]],
{show_address_only: true});
}).then(function(companies){
self.company = companies[0];
return self.fetch('product.uom', null, null);
}).then(function(units){
self.units = units;
var units_by_id = {};
for(var i = 0, len = units.length; i < len; i++){
units_by_id[units[i].id] = units[i];
}
self.units_by_id = units_by_id;
return self.fetch('res.users', ['name','ean13'], [['ean13', '!=', false]]);
}).then(function(users){
self.users = users;
return self.fetch('res.partner', ['name','ean13'], [['ean13', '!=', false]]);
}).then(function(partners){
self.partners = partners;
return self.fetch('account.tax', ['name','amount', 'price_include', 'type']);
}).then(function(taxes){
self.taxes = taxes;
return self.fetch(
'pos.session',
['id', 'journal_ids','name','user_id','config_id','start_at','stop_at'],
[['state', '=', 'opened'], ['user_id', '=', self.session.uid]]
);
}).then(function(pos_sessions){
self.pos_session = pos_sessions[0];
return self.fetch(
'pos.config',
['name','journal_ids','warehouse_id','journal_id','pricelist_id',
'iface_self_checkout', 'iface_led', 'iface_cashdrawer',
'iface_payment_terminal', 'iface_electronic_scale', 'iface_barscan',
'iface_vkeyboard','iface_print_via_proxy','iface_scan_via_proxy',
'iface_cashdrawer','iface_invoicing','iface_big_scrollbars',
'receipt_header','receipt_footer','proxy_ip',
'state','sequence_id','session_ids'],
[['id','=', self.pos_session.config_id[0]]]
);
}).then(function(configs){
self.config = configs[0];
self.config.use_proxy = self.config.iface_payment_terminal ||
self.config.iface_electronic_scale ||
self.config.iface_print_via_proxy ||
self.config.iface_scan_via_proxy ||
self.config.iface_cashdrawer;
return self.fetch('stock.warehouse',[],[['id','=', self.config.warehouse_id[0]]]);
}).then(function(shops){
self.shop = shops[0];
return self.fetch('product.pricelist',['currency_id'],[['id','=',self.config.pricelist_id[0]]]);
}).then(function(pricelists){
self.pricelist = pricelists[0];
return self.fetch('res.currency',['symbol','position','rounding','accuracy'],[['id','=',self.pricelist.currency_id[0]]]);
}).then(function(currencies){
self.currency = currencies[0];
/*
return (new instance.web.Model('decimal.precision')).call('get_precision',[['Account']]);
}).then(function(precision){
self.accounting_precision = precision;
console.log("PRECISION",precision);
*/
return self.fetch('product.packaging',['ean','product_id']);
}).then(function(packagings){
self.db.add_packagings(packagings);
return self.fetch('product.public.category', ['id','name','parent_id','child_id','image'])
}).then(function(categories){
self.db.add_categories(categories);
return self.fetch(
'product.product',
['name', 'list_price','price','public_categ_id', 'taxes_id', 'ean13', 'default_code', 'variants',
'to_weight', 'uom_id', 'uos_id', 'uos_coeff', 'mes_type', 'description_sale', 'description'],
[['sale_ok','=',true],['available_in_pos','=',true]],
{pricelist: self.pricelist.id} // context for price
);
}).then(function(products){
self.db.add_products(products);
return self.fetch(
'account.bank.statement',
['account_id','currency','journal_id','state','name','user_id','pos_session_id'],
[['state','=','open'],['pos_session_id', '=', self.pos_session.id]]
);
}).then(function(bankstatements){
var journals = [];
_.each(bankstatements,function(statement) {
journals.push(statement.journal_id[0])
});
self.bankstatements = bankstatements;
return self.fetch('account.journal', undefined, [['id','in', journals]]);
}).then(function(journals){
self.journals = journals;
// associate the bank statements with their journals.
var bankstatements = self.bankstatements
for(var i = 0, ilen = bankstatements.length; i < ilen; i++){
for(var j = 0, jlen = journals.length; j < jlen; j++){
if(bankstatements[i].journal_id[0] === journals[j].id){
bankstatements[i].journal = journals[j];
bankstatements[i].self_checkout_payment_method = journals[j].self_checkout_payment_method;
}
}
}
self.cashregisters = bankstatements;
// Load the company Logo
self.company_logo = new Image();
var logo_loaded = new $.Deferred();
self.company_logo.onload = function(){
var img = self.company_logo;
var ratio = 1;
var targetwidth = 300;
var maxheight = 150;
if( img.width !== targetwidth ){
ratio = targetwidth / img.width;
}
if( img.height * ratio > maxheight ){
ratio = maxheight / img.height;
}
var width = Math.floor(img.width * ratio);
var height = Math.floor(img.height * ratio);
var c = document.createElement('canvas');
c.width = width;
c.height = height
var ctx = c.getContext('2d');
ctx.drawImage(self.company_logo,0,0, width, height);
self.company_logo_base64 = c.toDataURL();
logo_loaded.resolve();
};
self.company_logo.onerror = function(){
logo_loaded.reject();
};
self.company_logo.crossOrigin = "anonymous";
self.company_logo.src = '/web/binary/company_logo'+'?_'+Math.random();
return logo_loaded;
});
return loaded;
},
// this is called when an order is removed from the order collection. It ensures that there is always an existing
// order and a valid selected order
on_removed_order: function(removed_order,index,reason){
if(reason === 'abandon' && this.get('orders').size() > 0){
// when we intentionally remove an unfinished order, and there is another existing one
this.set({'selectedOrder' : this.get('orders').at(index) || this.get('orders').last()});
}else{
// when the order was automatically removed after completion,
// or when we intentionally delete the only concurrent order
this.add_new_order();
}
},
//creates a new empty order and sets it as the current order
add_new_order: function(){
var order = new module.Order({pos:this});
this.get('orders').add(order);
this.set('selectedOrder', order);
},
//removes the current order
delete_current_order: function(){
this.get('selectedOrder').destroy({'reason':'abandon'});
},
// saves the order locally and try to send it to the backend.
// it returns a deferred that succeeds after having tried to send the order and all the other pending orders.
push_order: function(order) {
var self = this;
this.proxy.log('push_order',order.export_as_JSON());
var order_id = this.db.add_order(order.export_as_JSON());
var pushed = new $.Deferred();
this.set('synch',{state:'connecting', pending:self.db.get_orders().length});
this.flush_mutex.exec(function(){
var flushed = self._flush_all_orders();
flushed.always(function(){
pushed.resolve();
});
return flushed;
});
return pushed;
},
// saves the order locally and try to send it to the backend and make an invoice
// returns a deferred that succeeds when the order has been posted and successfully generated
// an invoice. This method can fail in various ways:
// error-no-client: the order must have an associated partner_id. You can retry to make an invoice once
// this error is solved
// error-transfer: there was a connection error during the transfer. You can retry to make the invoice once
// the network connection is up
push_and_invoice_order: function(order){
var self = this;
var invoiced = new $.Deferred();
if(!order.get_client()){
invoiced.reject('error-no-client');
return invoiced;
}
var order_id = this.db.add_order(order.export_as_JSON());
this.set('synch',{state:'connecting', pending:self.db.get_orders().length});
this.flush_mutex.exec(function(){
var done = new $.Deferred(); // holds the mutex
// send the order to the server
// we have a 30 seconds timeout on this push.
// FIXME: if the server takes more than 30 seconds to accept the order,
// the client will believe it wasn't successfully sent, and very bad
// things will happen as a duplicate will be sent next time
// so we must make sure the server detects and ignores duplicated orders
var transfer = self._flush_order(order_id, {timeout:30000, to_invoice:true});
transfer.fail(function(){
invoiced.reject('error-transfer');
done.reject();
});
// on success, get the order id generated by the server
transfer.pipe(function(order_server_id){
// generate the pdf and download it
self.pos_widget.do_action('point_of_sale.pos_invoice_report',{additional_context:{
active_ids:order_server_id,
}});
invoiced.resolve();
done.resolve();
});
return done;
});
return invoiced;
},
// attemps to send all pending orders ( stored in the pos_db ) to the server,
// and remove the successfully sent ones from the db once
// it has been confirmed that they have been sent correctly.
flush: function() {
var self = this;
var flushed = new $.Deferred();
this.flush_mutex.exec(function(){
var done = new $.Deferred();
self._flush_all_orders()
.done( function(){ flushed.resolve();})
.fail( function(){ flushed.reject(); })
.always(function(){ done.resolve(); });
return done;
});
return flushed;
},
// attempts to send the locally stored order of id 'order_id'
// the sending is asynchronous and can take some time to decide if it is successful or not
// it is therefore important to only call this method from inside a mutex
// this method returns a deferred indicating wether the sending was successful or not
// there is a timeout parameter which is set to 2 seconds by default.
_flush_order: function( order_id, options) {
return this._flush_all_orders([this.db.get_order(order_id)], options);
},
// attempts to send all the locally stored orders. As with _flush_order, it should only be
// called from within a mutex.
// this method returns a deferred that always succeeds when all orders have been tried to be sent,
// even if none of them could actually be sent.
_flush_all_orders: function ( order, options) {
var self = this;
orders = order || self.db.get_orders()
self.set('synch', {
state: 'connecting',
pending: self.get('synch').pending
});
return self._save_to_server( orders, options).done(function () {
var pending = orders.length;
self.set('synch', {
state: pending ? 'connecting' : 'connected',
pending: pending
});
});
},
// send an array of orders to the server
// available options:
// - timeout: timeout for the rpc call in ms
_save_to_server: function (orders, options) {
if (!orders || !orders.length) {
var result = $.Deferred();
result.resolve();
return result;
}
options = options || {};
var self = this;
var timeout = typeof options.timeout === 'number' ? options.timeout : 7500 * orders.length;
// we try to send the order. shadow prevents a spinner if it takes too long. (unless we are sending an invoice,
// then we want to notify the user that we are waiting on something )
var posOrderModel = new instance.web.Model('pos.order');
return posOrderModel.call('create_from_ui',
[_.map(orders, function (order) {
order.to_invoice = options.to_invoice || false;
return order;
})],
undefined,
{
shadow: !options.to_invoice,
timeout: timeout
}
).then(function () {
_.each(orders, function (order) {
self.db.remove_order(order.id);
});
}).fail(function (unused, event){
// prevent an error popup creation by the rpc failure
// we want the failure to be silent as we send the orders in the background
event.preventDefault();
console.error('Failed to send orders:', orders);
});
},
scan_product: function(parsed_code){
var self = this;
var selectedOrder = this.get('selectedOrder');
if(parsed_code.encoding === 'ean13'){
var product = this.db.get_product_by_ean13(parsed_code.base_code);
}else if(parsed_code.encoding === 'reference'){
var product = this.db.get_product_by_reference(parsed_code.code);
}
if(!product){
return false;
}
if(parsed_code.type === 'price'){
selectedOrder.addProduct(product, {price:parsed_code.value});
}else if(parsed_code.type === 'weight'){
selectedOrder.addProduct(product, {quantity:parsed_code.value, merge:false});
}else{
selectedOrder.addProduct(product);
}
return true;
},
});
// An orderline represent one element of the content of a client's shopping cart.
// An orderline contains a product, its quantity, its price, discount. etc.
// An Order contains zero or more Orderlines.
module.Orderline = Backbone.Model.extend({
initialize: function(attr,options){
this.pos = options.pos;
this.order = options.order;
this.product = options.product;
this.price = options.product.price;
this.quantity = 1;
this.quantityStr = '1';
this.discount = 0;
this.discountStr = '0';
this.type = 'unit';
this.selected = false;
},
// sets a discount [0,100]%
set_discount: function(discount){
var disc = Math.min(Math.max(parseFloat(discount) || 0, 0),100);
this.discount = disc;
this.discountStr = '' + disc;
this.trigger('change',this);
},
// returns the discount [0,100]%
get_discount: function(){
return this.discount;
},
get_discount_str: function(){
return this.discountStr;
},
get_product_type: function(){
return this.type;
},
// sets the quantity of the product. The quantity will be rounded according to the
// product's unity of measure properties. Quantities greater than zero will not get
// rounded to zero
set_quantity: function(quantity){
if(quantity === 'remove'){
this.order.removeOrderline(this);
return;
}else{
var quant = Math.max(parseFloat(quantity) || 0, 0);
var unit = this.get_unit();
if(unit){
this.quantity = Math.max(unit.rounding, round_pr(quant, unit.rounding));
this.quantityStr = this.quantity.toFixed(Math.max(0,Math.ceil(Math.log(1.0 / unit.rounding) / Math.log(10))));
}else{
this.quantity = quant;
this.quantityStr = '' + this.quantity;
}
}
this.trigger('change',this);
},
// return the quantity of product
get_quantity: function(){
return this.quantity;
},
get_quantity_str: function(){
return this.quantityStr;
},
get_quantity_str_with_unit: function(){
var unit = this.get_unit();
if(unit && unit.name !== 'Unit(s)'){
return this.quantityStr + ' ' + unit.name;
}else{
return this.quantityStr;
}
},
// return the unit of measure of the product
get_unit: function(){
var unit_id = (this.product.uos_id || this.product.uom_id);
if(!unit_id){
return undefined;
}
unit_id = unit_id[0];
if(!this.pos){
return undefined;
}
return this.pos.units_by_id[unit_id];
},
// return the product of this orderline
get_product: function(){
return this.product;
},
// selects or deselects this orderline
set_selected: function(selected){
this.selected = selected;
this.trigger('change',this);
},
// returns true if this orderline is selected
is_selected: function(){
return this.selected;
},
// when we add an new orderline we want to merge it with the last line to see reduce the number of items
// in the orderline. This returns true if it makes sense to merge the two
can_be_merged_with: function(orderline){
if( this.get_product().id !== orderline.get_product().id){ //only orderline of the same product can be merged
return false;
}else if(this.get_product_type() !== orderline.get_product_type()){
return false;
}else if(this.get_discount() > 0){ // we don't merge discounted orderlines
return false;
}else if(this.price !== orderline.price){
return false;
}else{
return true;
}
},
merge: function(orderline){
this.set_quantity(this.get_quantity() + orderline.get_quantity());
},
export_as_JSON: function() {
return {
qty: this.get_quantity(),
price_unit: this.get_unit_price(),
discount: this.get_discount(),
product_id: this.get_product().id,
};
},
//used to create a json of the ticket, to be sent to the printer
export_for_printing: function(){
return {
quantity: this.get_quantity(),
unit_name: this.get_unit().name,
price: this.get_unit_price(),
discount: this.get_discount(),
product_name: this.get_product().name,
price_display : this.get_display_price(),
price_with_tax : this.get_price_with_tax(),
price_without_tax: this.get_price_without_tax(),
tax: this.get_tax(),
product_description: this.get_product().description,
product_description_sale: this.get_product().description_sale,
};
},
// changes the base price of the product for this orderline
set_unit_price: function(price){
this.price = round_di(parseFloat(price) || 0, 2);
this.trigger('change',this);
},
get_unit_price: function(){
var rounding = this.pos.currency.rounding;
return round_pr(this.price,rounding);
},
get_display_price: function(){
var rounding = this.pos.currency.rounding;
return round_pr(round_pr(this.get_unit_price() * this.get_quantity(),rounding) * (1- this.get_discount()/100.0),rounding);
},
get_price_without_tax: function(){
return this.get_all_prices().priceWithoutTax;
},
get_price_with_tax: function(){
return this.get_all_prices().priceWithTax;
},
get_tax: function(){
return this.get_all_prices().tax;
},
get_tax_details: function(){
return this.get_all_prices().taxDetails;
},
get_all_prices: function(){
var self = this;
var currency_rounding = this.pos.currency.rounding;
var base = round_pr(round_pr(this.get_quantity() * this.get_unit_price(), currency_rounding) * (1.0 - (this.get_discount() / 100.0)), currency_rounding);
var totalTax = base;
var totalNoTax = base;
var product = this.get_product();
var taxes_ids = product.taxes_id;
var taxes = self.pos.taxes;
var taxtotal = 0;
var taxdetail = {};
_.each(taxes_ids, function(el) {
var tax = _.detect(taxes, function(t) {return t.id === el;});
if (tax.price_include) {
var tmp;
if (tax.type === "percent") {
tmp = base - round_pr(base / (1 + tax.amount),currency_rounding);
} else if (tax.type === "fixed") {
tmp = round_pr(tax.amount * self.get_quantity(),currency_rounding);
} else {
throw "This type of tax is not supported by the point of sale: " + tax.type;
}
tmp = round_pr(tmp,currency_rounding);
taxtotal += tmp;
totalNoTax -= tmp;
taxdetail[tax.id] = tmp;
} else {
var tmp;
if (tax.type === "percent") {
tmp = tax.amount * base;
} else if (tax.type === "fixed") {
tmp = tax.amount * self.get_quantity();
} else {
throw "This type of tax is not supported by the point of sale: " + tax.type;
}
tmp = round_pr(tmp,currency_rounding);
taxtotal += tmp;
totalTax += tmp;
taxdetail[tax.id] = tmp;
}
});
return {
"priceWithTax": totalTax,
"priceWithoutTax": totalNoTax,
"tax": taxtotal,
"taxDetails": taxdetail,
};
},
});
module.OrderlineCollection = Backbone.Collection.extend({
model: module.Orderline,
});
// Every Paymentline contains a cashregister and an amount of money.
module.Paymentline = Backbone.Model.extend({
initialize: function(attributes, options) {
this.amount = 0;
this.cashregister = options.cashregister;
this.name = this.cashregister.journal_id[1];
this.selected = false;
},
//sets the amount of money on this payment line
set_amount: function(value){
this.amount = round_di(parseFloat(value) || 0, 2);
this.trigger('change:amount',this);
},
// returns the amount of money on this paymentline
get_amount: function(){
return this.amount;
},
set_selected: function(selected){
if(this.selected !== selected){
this.selected = selected;
this.trigger('change:selected',this);
}
},
// returns the associated cashregister
//exports as JSON for server communication
export_as_JSON: function(){
return {
name: instance.web.datetime_to_str(new Date()),
statement_id: this.cashregister.id,
account_id: this.cashregister.account_id[0],
journal_id: this.cashregister.journal_id[0],
amount: this.get_amount()
};
},
//exports as JSON for receipt printing
export_for_printing: function(){
return {
amount: this.get_amount(),
journal: this.cashregister.journal_id[1],
};
},
});
module.PaymentlineCollection = Backbone.Collection.extend({
model: module.Paymentline,
});
// An order more or less represents the content of a client's shopping cart (the OrderLines)
// plus the associated payment information (the Paymentlines)
// there is always an active ('selected') order in the Pos, a new one is created
// automaticaly once an order is completed and sent to the server.
module.Order = Backbone.Model.extend({
initialize: function(attributes){
Backbone.Model.prototype.initialize.apply(this, arguments);
this.uid = this.generateUniqueId();
this.set({
creationDate: new Date(),
orderLines: new module.OrderlineCollection(),
paymentLines: new module.PaymentlineCollection(),
name: "Order " + this.uid,
client: null,
});
this.pos = attributes.pos;
this.selected_orderline = undefined;
this.selected_paymentline = undefined;
this.screen_data = {}; // see ScreenSelector
this.receipt_type = 'receipt'; // 'receipt' || 'invoice'
return this;
},
generateUniqueId: function() {
return new Date().getTime();
},
addProduct: function(product, options){
options = options || {};
var attr = JSON.parse(JSON.stringify(product));
attr.pos = this.pos;
attr.order = this;
var line = new module.Orderline({}, {pos: this.pos, order: this, product: product});
if(options.quantity !== undefined){
line.set_quantity(options.quantity);
}
if(options.price !== undefined){
line.set_unit_price(options.price);
}
var last_orderline = this.getLastOrderline();
if( last_orderline && last_orderline.can_be_merged_with(line) && options.merge !== false){
last_orderline.merge(line);
}else{
this.get('orderLines').add(line);
}
this.selectLine(this.getLastOrderline());
},
removeOrderline: function( line ){
this.get('orderLines').remove(line);
this.selectLine(this.getLastOrderline());
},
getLastOrderline: function(){
return this.get('orderLines').at(this.get('orderLines').length -1);
},
addPaymentline: function(cashregister) {
var paymentLines = this.get('paymentLines');
var newPaymentline = new module.Paymentline({},{cashregister:cashregister});
if(cashregister.journal.type !== 'cash'){
newPaymentline.set_amount( Math.max(this.getDueLeft(),0) );
}
paymentLines.add(newPaymentline);
this.selectPaymentline(newPaymentline);
},
removePaymentline: function(line){
if(this.selected_paymentline === line){
this.selectPaymentline(undefined);
}
this.get('paymentLines').remove(line);
},
getName: function() {
return this.get('name');
},
getSubtotal : function(){
return (this.get('orderLines')).reduce((function(sum, orderLine){
return sum + orderLine.get_display_price();
}), 0);
},
getTotalTaxIncluded: function() {
return (this.get('orderLines')).reduce((function(sum, orderLine) {
return sum + orderLine.get_price_with_tax();
}), 0);
},
getDiscountTotal: function() {
return (this.get('orderLines')).reduce((function(sum, orderLine) {
return sum + (orderLine.get_unit_price() * (orderLine.get_discount()/100) * orderLine.get_quantity());
}), 0);
},
getTotalTaxExcluded: function() {
return (this.get('orderLines')).reduce((function(sum, orderLine) {
return sum + orderLine.get_price_without_tax();
}), 0);
},
getTax: function() {
return (this.get('orderLines')).reduce((function(sum, orderLine) {
return sum + orderLine.get_tax();
}), 0);
},
getTaxDetails: function(){
var details = {};
var fulldetails = [];
var taxes_by_id = {};
for(var i = 0; i < this.pos.taxes.length; i++){
taxes_by_id[this.pos.taxes[i].id] = this.pos.taxes[i];
}
this.get('orderLines').each(function(line){
var ldetails = line.get_tax_details();
for(var id in ldetails){
if(ldetails.hasOwnProperty(id)){
details[id] = (details[id] || 0) + ldetails[id];
}
}
});
for(var id in details){
if(details.hasOwnProperty(id)){
fulldetails.push({amount: details[id], tax: taxes_by_id[id]});
}
}
return fulldetails;
},
getPaidTotal: function() {
return (this.get('paymentLines')).reduce((function(sum, paymentLine) {
return sum + paymentLine.get_amount();
}), 0);
},
getChange: function() {
return this.getPaidTotal() - this.getTotalTaxIncluded();
},
getDueLeft: function() {
return this.getTotalTaxIncluded() - this.getPaidTotal();
},
// sets the type of receipt 'receipt'(default) or 'invoice'
set_receipt_type: function(type){
this.receipt_type = type;
},
get_receipt_type: function(){
return this.receipt_type;
},
// the client related to the current order.
set_client: function(client){
this.set('client',client);
},
get_client: function(){
return this.get('client');
},
get_client_name: function(){
var client = this.get('client');
return client ? client.name : "";
},
// the order also stores the screen status, as the PoS supports
// different active screens per order. This method is used to
// store the screen status.
set_screen_data: function(key,value){
if(arguments.length === 2){
this.screen_data[key] = value;
}else if(arguments.length === 1){
for(key in arguments[0]){
this.screen_data[key] = arguments[0][key];
}
}
},
//see set_screen_data
get_screen_data: function(key){
return this.screen_data[key];
},
// exports a JSON for receipt printing
export_for_printing: function(){
var orderlines = [];
this.get('orderLines').each(function(orderline){
orderlines.push(orderline.export_for_printing());
});
var paymentlines = [];
this.get('paymentLines').each(function(paymentline){
paymentlines.push(paymentline.export_for_printing());
});
var client = this.get('client');
var cashier = this.pos.cashier || this.pos.user;
var company = this.pos.company;
var shop = this.pos.shop;
var date = new Date();
return {
orderlines: orderlines,
paymentlines: paymentlines,
subtotal: this.getSubtotal(),
total_with_tax: this.getTotalTaxIncluded(),
total_without_tax: this.getTotalTaxExcluded(),
total_tax: this.getTax(),
total_paid: this.getPaidTotal(),
total_discount: this.getDiscountTotal(),
tax_details: this.getTaxDetails(),
change: this.getChange(),
name : this.getName(),
client: client ? client.name : null ,
invoice_id: null, //TODO
cashier: cashier ? cashier.name : null,
header: this.pos.config.receipt_header || '',
footer: this.pos.config.receipt_footer || '',
precision: {
price: 2,
money: 2,
quantity: 3,
},
date: {
year: date.getFullYear(),
month: date.getMonth(),
date: date.getDate(), // day of the month
day: date.getDay(), // day of the week
hour: date.getHours(),
minute: date.getMinutes() ,
isostring: date.toISOString(),
},
company:{
email: company.email,
website: company.website,
company_registry: company.company_registry,
contact_address: company.partner_id[1],
vat: company.vat,
name: company.name,
phone: company.phone,
logo: this.pos.company_logo_base64,
},
shop:{
name: shop.name,
},
currency: this.pos.currency,
};
},
export_as_JSON: function() {
var orderLines, paymentLines;
orderLines = [];
(this.get('orderLines')).each(_.bind( function(item) {
return orderLines.push([0, 0, item.export_as_JSON()]);
}, this));
paymentLines = [];
(this.get('paymentLines')).each(_.bind( function(item) {
return paymentLines.push([0, 0, item.export_as_JSON()]);
}, this));
return {
name: this.getName(),
amount_paid: this.getPaidTotal(),
amount_total: this.getTotalTaxIncluded(),
amount_tax: this.getTax(),
amount_return: this.getChange(),
lines: orderLines,
statement_ids: paymentLines,
pos_session_id: this.pos.pos_session.id,
partner_id: this.get_client() ? this.get_client().id : false,
user_id: this.pos.cashier ? this.pos.cashier.id : this.pos.user.id,
uid: this.uid,
};
},
getSelectedLine: function(){
return this.selected_orderline;
},
selectLine: function(line){
if(line){
if(line !== this.selected_orderline){
if(this.selected_orderline){
this.selected_orderline.set_selected(false);
}
this.selected_orderline = line;
this.selected_orderline.set_selected(true);
}
}else{
this.selected_orderline = undefined;
}
},
deselectLine: function(){
if(this.selected_orderline){
this.selected_orderline.set_selected(false);
this.selected_orderline = undefined;
}
},
selectPaymentline: function(line){
if(line !== this.selected_paymentline){
if(this.selected_paymentline){
this.selected_paymentline.set_selected(false);
}
this.selected_paymentline = line;
if(this.selected_paymentline){
this.selected_paymentline.set_selected(true);
}
this.trigger('change:selected_paymentline',this.selected_paymentline);
}
},
});
module.OrderCollection = Backbone.Collection.extend({
model: module.Order,
});
/*
The numpad handles both the choice of the property currently being modified
(quantity, price or discount) and the edition of the corresponding numeric value.
*/
module.NumpadState = Backbone.Model.extend({
defaults: {
buffer: "0",
mode: "quantity"
},
appendNewChar: function(newChar) {
var oldBuffer;
oldBuffer = this.get('buffer');
if (oldBuffer === '0') {
this.set({
buffer: newChar
});
} else if (oldBuffer === '-0') {
this.set({
buffer: "-" + newChar
});
} else {
this.set({
buffer: (this.get('buffer')) + newChar
});
}
this.trigger('set_value',this.get('buffer'));
},
deleteLastChar: function() {
if(this.get('buffer') === ""){
if(this.get('mode') === 'quantity'){
this.trigger('set_value','remove');
}else{
this.trigger('set_value',this.get('buffer'));
}
}else{
var newBuffer = this.get('buffer').slice(0,-1) || "";
this.set({ buffer: newBuffer });
this.trigger('set_value',this.get('buffer'));
}
},
switchSign: function() {
var oldBuffer;
oldBuffer = this.get('buffer');
this.set({
buffer: oldBuffer[0] === '-' ? oldBuffer.substr(1) : "-" + oldBuffer
});
this.trigger('set_value',this.get('buffer'));
},
changeMode: function(newMode) {
this.set({
buffer: "0",
mode: newMode
});
},
reset: function() {
this.set({
buffer: "0",
mode: "quantity"
});
},
resetValue: function(){
this.set({buffer:'0'});
},
});
}