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models.js
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models.js
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odoo.define('point_of_sale.models', function (require) {
"use strict";
var ajax = require('web.ajax');
var BarcodeParser = require('barcodes.BarcodeParser');
var PosDB = require('point_of_sale.DB');
var devices = require('point_of_sale.devices');
var concurrency = require('web.concurrency');
var config = require('web.config');
var core = require('web.core');
var field_utils = require('web.field_utils');
var rpc = require('web.rpc');
var session = require('web.session');
var time = require('web.time');
var utils = require('web.utils');
var QWeb = core.qweb;
var _t = core._t;
var Mutex = concurrency.Mutex;
var round_di = utils.round_decimals;
var round_pr = utils.round_precision;
var exports = {};
// 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.
exports.PosModel = Backbone.Model.extend({
initialize: function(session, attributes) {
Backbone.Model.prototype.initialize.call(this, attributes);
var self = this;
this.flush_mutex = new Mutex(); // used to make sure the orders are sent to the server once at time
this.chrome = attributes.chrome;
this.gui = attributes.gui;
this.proxy = new devices.ProxyDevice(this); // used to communicate to the hardware devices via a local proxy
this.barcode_reader = new devices.BarcodeReader({'pos': this, proxy:this.proxy});
this.proxy_queue = new devices.JobQueue(); // used to prevent parallels communications to the proxy
this.db = new PosDB(); // a local database used to search trough products and categories & store pending orders
this.debug = config.debug; //debug mode
// Business data; loaded from the server at launch
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.cashregisters = [];
this.taxes = [];
this.pos_session = null;
this.config = null;
this.units = [];
this.units_by_id = {};
this.default_pricelist = null;
this.order_sequence = 1;
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 OrderCollection(),
'selectedOrder': null,
'selectedClient': null,
'cashier': null,
});
this.get('orders').bind('remove', function(order,_unused_,options){
self.on_removed_order(order,options.index,options.reason);
});
// Forward the 'client' attribute on the selected order to 'selectedClient'
function update_client() {
var order = self.get_order();
this.set('selectedClient', order ? order.get_client() : null );
}
this.get('orders').bind('add remove change', update_client, this);
this.bind('change:selectedOrder', update_client, this);
// 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(){
return self.after_load_server_data();
});
},
after_load_server_data: function(){
this.load_orders();
this.set_start_order();
if(this.config.use_proxy){
if (this.config.iface_customer_facing_display) {
this.on('change:selectedOrder', this.send_current_order_to_customer_facing_display, this);
}
return this.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.chrome.loading_message(_t('Connecting to the PosBox'),0);
this.chrome.loading_skip(function(){
self.proxy.stop_searching();
});
this.proxy.autoconnect({
force_ip: self.config.proxy_ip || undefined,
progress: function(prog){
self.chrome.loading_progress(prog);
},
}).then(function(){
if(self.config.iface_scan_via_proxy){
self.barcode_reader.connect_to_proxy();
}
}).always(function(){
done.resolve();
});
return done;
},
// Server side model loaders. This is the list of the models that need to be loaded from
// the server. The models are loaded one by one by this list's order. The 'loaded' callback
// is used to store the data in the appropriate place once it has been loaded. This callback
// can return a deferred that will pause the loading of the next module.
// a shared temporary dictionary is available for loaders to communicate private variables
// used during loading such as object ids, etc.
models: [
{
label: 'version',
loaded: function(self){
return session.rpc('/web/webclient/version_info',{}).done(function(version) {
self.version = version;
});
},
},{
model: 'res.users',
fields: ['name','company_id'],
ids: function(self){ return [session.uid]; },
loaded: function(self,users){ self.user = users[0]; },
},{
model: 'res.company',
fields: [ 'currency_id', 'email', 'website', 'company_registry', 'vat', 'name', 'phone', 'partner_id' , 'country_id', 'tax_calculation_rounding_method'],
ids: function(self){ return [self.user.company_id[0]]; },
loaded: function(self,companies){ self.company = companies[0]; },
},{
model: 'decimal.precision',
fields: ['name','digits'],
loaded: function(self,dps){
self.dp = {};
for (var i = 0; i < dps.length; i++) {
self.dp[dps[i].name] = dps[i].digits;
}
},
},{
model: 'uom.uom',
fields: [],
domain: null,
context: function(self){ return { active_test: false }; },
loaded: function(self,units){
self.units = units;
_.each(units, function(unit){
self.units_by_id[unit.id] = unit;
});
}
},{
model: 'res.partner',
fields: ['name','street','city','state_id','country_id','vat',
'phone','zip','mobile','email','barcode','write_date',
'property_account_position_id','property_product_pricelist'],
domain: [['customer','=',true]],
loaded: function(self,partners){
self.partners = partners;
self.db.add_partners(partners);
},
},{
model: 'res.country',
fields: ['name', 'vat_label'],
loaded: function(self,countries){
self.countries = countries;
self.company.country = null;
for (var i = 0; i < countries.length; i++) {
if (countries[i].id === self.company.country_id[0]){
self.company.country = countries[i];
}
}
},
},{
model: 'account.tax',
fields: ['name','amount', 'price_include', 'include_base_amount', 'amount_type', 'children_tax_ids'],
domain: function(self) {return [['company_id', '=', self.company && self.company.id || false]]},
loaded: function(self, taxes){
self.taxes = taxes;
self.taxes_by_id = {};
_.each(taxes, function(tax){
self.taxes_by_id[tax.id] = tax;
});
_.each(self.taxes_by_id, function(tax) {
tax.children_tax_ids = _.map(tax.children_tax_ids, function (child_tax_id) {
return self.taxes_by_id[child_tax_id];
});
});
},
},{
model: 'pos.session',
fields: ['id', 'journal_ids','name','user_id','config_id','start_at','stop_at','sequence_number','login_number'],
domain: function(self){ return [['state','=','opened'],['user_id','=',session.uid]]; },
loaded: function(self,pos_sessions){
self.pos_session = pos_sessions[0];
},
},{
model: 'pos.config',
fields: [],
domain: function(self){ return [['id','=', self.pos_session.config_id[0]]]; },
loaded: function(self,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 ||
self.config.iface_customer_facing_display;
if (self.config.company_id[0] !== self.user.company_id[0]) {
throw new Error(_t("Error: The Point of Sale User must belong to the same company as the Point of Sale. You are probably trying to load the point of sale as an administrator in a multi-company setup, with the administrator account set to the wrong company."));
}
self.db.set_uuid(self.config.uuid);
self.set_cashier(self.get_cashier());
// We need to do it here, since only then the local storage has the correct uuid
self.db.save('pos_session_id', self.pos_session.id);
var orders = self.db.get_orders();
for (var i = 0; i < orders.length; i++) {
self.pos_session.sequence_number = Math.max(self.pos_session.sequence_number, orders[i].data.sequence_number+1);
}
},
},{
model: 'res.users',
fields: ['name','pos_security_pin','groups_id','barcode'],
domain: function(self){ return [['company_id','=',self.user.company_id[0]],'|', ['groups_id','=', self.config.group_pos_manager_id[0]],['groups_id','=', self.config.group_pos_user_id[0]]]; },
loaded: function(self,users){
// we attribute a role to the user, 'cashier' or 'manager', depending
// on the group the user belongs.
var pos_users = [];
var current_cashier = self.get_cashier();
for (var i = 0; i < users.length; i++) {
var user = users[i];
for (var j = 0; j < user.groups_id.length; j++) {
var group_id = user.groups_id[j];
if (group_id === self.config.group_pos_manager_id[0]) {
user.role = 'manager';
break;
} else if (group_id === self.config.group_pos_user_id[0]) {
user.role = 'cashier';
}
}
if (user.role) {
pos_users.push(user);
}
// replace the current user with its updated version
if (user.id === self.user.id) {
self.user = user;
}
if (user.id === current_cashier.id) {
self.set_cashier(user);
}
}
self.users = pos_users;
},
},{
model: 'stock.location',
fields: [],
ids: function(self){ return [self.config.stock_location_id[0]]; },
loaded: function(self, locations){ self.shop = locations[0]; },
},{
model: 'product.pricelist',
fields: ['name', 'display_name'],
domain: function(self) { return [['id', 'in', self.config.available_pricelist_ids]]; },
loaded: function(self, pricelists){
_.map(pricelists, function (pricelist) { pricelist.items = []; });
self.default_pricelist = _.findWhere(pricelists, {id: self.config.pricelist_id[0]});
self.pricelists = pricelists;
},
},{
model: 'product.pricelist.item',
domain: function(self) { return [['pricelist_id', 'in', _.pluck(self.pricelists, 'id')]]; },
loaded: function(self, pricelist_items){
var pricelist_by_id = {};
_.each(self.pricelists, function (pricelist) {
pricelist_by_id[pricelist.id] = pricelist;
});
_.each(pricelist_items, function (item) {
var pricelist = pricelist_by_id[item.pricelist_id[0]];
pricelist.items.push(item);
item.base_pricelist = pricelist_by_id[item.base_pricelist_id[0]];
});
},
},{
model: 'product.category',
fields: ['name', 'parent_id'],
loaded: function(self, product_categories){
var category_by_id = {};
_.each(product_categories, function (category) {
category_by_id[category.id] = category;
});
_.each(product_categories, function (category) {
category.parent = category_by_id[category.parent_id[0]];
});
self.product_categories = product_categories;
},
},{
model: 'res.currency',
fields: ['name','symbol','position','rounding','rate'],
ids: function(self){ return [self.config.currency_id[0], self.company.currency_id[0]]; },
loaded: function(self, currencies){
self.currency = currencies[0];
if (self.currency.rounding > 0 && self.currency.rounding < 1) {
self.currency.decimals = Math.ceil(Math.log(1.0 / self.currency.rounding) / Math.log(10));
} else {
self.currency.decimals = 0;
}
self.company_currency = currencies[1];
},
},{
model: 'pos.category',
fields: ['id', 'name', 'parent_id', 'child_id'],
domain: null,
loaded: function(self, categories){
self.db.add_categories(categories);
},
},{
model: 'product.product',
fields: ['display_name', 'lst_price', 'standard_price', 'categ_id', 'pos_categ_id', 'taxes_id',
'barcode', 'default_code', 'to_weight', 'uom_id', 'description_sale', 'description',
'product_tmpl_id','tracking'],
order: _.map(['sequence','default_code','name'], function (name) { return {name: name}; }),
domain: [['sale_ok','=',true],['available_in_pos','=',true]],
context: function(self){ return { display_default_code: false }; },
loaded: function(self, products){
var using_company_currency = self.config.currency_id[0] === self.company.currency_id[0];
var conversion_rate = self.currency.rate / self.company_currency.rate;
self.db.add_products(_.map(products, function (product) {
if (!using_company_currency) {
product.lst_price = round_pr(product.lst_price * conversion_rate, self.currency.rounding);
}
product.categ = _.findWhere(self.product_categories, {'id': product.categ_id[0]});
return new exports.Product({}, product);
}));
},
},{
model: 'account.bank.statement',
fields: ['account_id','currency_id','journal_id','state','name','user_id','pos_session_id'],
domain: function(self){ return [['state', '=', 'open'],['pos_session_id', '=', self.pos_session.id]]; },
loaded: function(self, cashregisters, tmp){
self.cashregisters = cashregisters;
tmp.journals = [];
_.each(cashregisters,function(statement){
tmp.journals.push(statement.journal_id[0]);
});
},
},{
model: 'account.journal',
fields: ['type', 'sequence'],
domain: function(self,tmp){ return [['id','in',tmp.journals]]; },
loaded: function(self, journals){
var i;
self.journals = journals;
// associate the bank statements with their journals.
var cashregisters = self.cashregisters;
var ilen = cashregisters.length;
for(i = 0; i < ilen; i++){
for(var j = 0, jlen = journals.length; j < jlen; j++){
if(cashregisters[i].journal_id[0] === journals[j].id){
cashregisters[i].journal = journals[j];
}
}
}
self.cashregisters_by_id = {};
for (i = 0; i < self.cashregisters.length; i++) {
self.cashregisters_by_id[self.cashregisters[i].id] = self.cashregisters[i];
}
self.cashregisters = self.cashregisters.sort(function(a,b){
// prefer cashregisters to be first in the list
if (a.journal.type == "cash" && b.journal.type != "cash") {
return -1;
} else if (a.journal.type != "cash" && b.journal.type == "cash") {
return 1;
} else {
return a.journal.sequence - b.journal.sequence;
}
});
},
}, {
model: 'account.fiscal.position',
fields: [],
domain: function(self){ return [['id','in',self.config.fiscal_position_ids]]; },
loaded: function(self, fiscal_positions){
self.fiscal_positions = fiscal_positions;
}
}, {
model: 'account.fiscal.position.tax',
fields: [],
domain: function(self){
var fiscal_position_tax_ids = [];
self.fiscal_positions.forEach(function (fiscal_position) {
fiscal_position.tax_ids.forEach(function (tax_id) {
fiscal_position_tax_ids.push(tax_id);
});
});
return [['id','in',fiscal_position_tax_ids]];
},
loaded: function(self, fiscal_position_taxes){
self.fiscal_position_taxes = fiscal_position_taxes;
self.fiscal_positions.forEach(function (fiscal_position) {
fiscal_position.fiscal_position_taxes_by_id = {};
fiscal_position.tax_ids.forEach(function (tax_id) {
var fiscal_position_tax = _.find(fiscal_position_taxes, function (fiscal_position_tax) {
return fiscal_position_tax.id === tax_id;
});
fiscal_position.fiscal_position_taxes_by_id[fiscal_position_tax.id] = fiscal_position_tax;
});
});
}
}, {
label: 'fonts',
loaded: function(){
var fonts_loaded = new $.Deferred();
// Waiting for fonts to be loaded to prevent receipt printing
// from printing empty receipt while loading Inconsolata
// ( The font used for the receipt )
waitForWebfonts(['Lato','Inconsolata'], function(){
fonts_loaded.resolve();
});
// The JS used to detect font loading is not 100% robust, so
// do not wait more than 5sec
setTimeout(function(){
fonts_loaded.resolve();
},5000);
return fonts_loaded;
},
},{
label: 'pictures',
loaded: function(self){
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' +'?dbname=' + session.db + '&_'+Math.random();
return logo_loaded;
},
}, {
label: 'barcodes',
loaded: function(self) {
var barcode_parser = new BarcodeParser({'nomenclature_id': self.config.barcode_nomenclature_id});
self.barcode_reader.set_barcode_parser(barcode_parser);
return barcode_parser.is_loaded();
},
}
],
// 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 = new $.Deferred();
var progress = 0;
var progress_step = 1.0 / self.models.length;
var tmp = {}; // this is used to share a temporary state between models loaders
function load_model(index){
if(index >= self.models.length){
loaded.resolve();
}else{
var model = self.models[index];
self.chrome.loading_message(_t('Loading')+' '+(model.label || model.model || ''), progress);
var cond = typeof model.condition === 'function' ? model.condition(self,tmp) : true;
if (!cond) {
load_model(index+1);
return;
}
var fields = typeof model.fields === 'function' ? model.fields(self,tmp) : model.fields;
var domain = typeof model.domain === 'function' ? model.domain(self,tmp) : model.domain;
var context = typeof model.context === 'function' ? model.context(self,tmp) : model.context || {};
var ids = typeof model.ids === 'function' ? model.ids(self,tmp) : model.ids;
var order = typeof model.order === 'function' ? model.order(self,tmp): model.order;
progress += progress_step;
if( model.model ){
var params = {
model: model.model,
context: _.extend(context, session.user_context || {}),
};
if (model.ids) {
params.method = 'read';
params.args = [ids, fields];
} else {
params.method = 'search_read';
params.domain = domain;
params.fields = fields;
params.orderBy = order;
}
rpc.query(params).then(function(result){
try{ // catching exceptions in model.loaded(...)
$.when(model.loaded(self,result,tmp))
.then(function(){ load_model(index + 1); },
function(err){ loaded.reject(err); });
}catch(err){
console.error(err.message, err.stack);
loaded.reject(err);
}
},function(err){
loaded.reject(err);
});
}else if( model.loaded ){
try{ // catching exceptions in model.loaded(...)
$.when(model.loaded(self,tmp))
.then( function(){ load_model(index +1); },
function(err){ loaded.reject(err); });
}catch(err){
loaded.reject(err);
}
}else{
load_model(index + 1);
}
}
}
try{
load_model(0);
}catch(err){
loaded.reject(err);
}
return loaded;
},
// reload the list of partner, returns as a deferred that resolves if there were
// updated partners, and fails if not
load_new_partners: function(){
var self = this;
var def = new $.Deferred();
var fields = _.find(this.models,function(model){ return model.model === 'res.partner'; }).fields;
var domain = [['customer','=',true],['write_date','>',this.db.get_partner_write_date()]];
rpc.query({
model: 'res.partner',
method: 'search_read',
args: [domain, fields],
}, {
timeout: 3000,
shadow: true,
})
.then(function(partners){
if (self.db.add_partners(partners)) { // check if the partners we got were real updates
def.resolve();
} else {
def.reject();
}
}, function(type,err){ def.reject(); });
return def;
},
// 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){
var order_list = this.get_order_list();
if( (reason === 'abandon' || removed_order.temporary) && order_list.length > 0){
// when we intentionally remove an unfinished order, and there is another existing one
this.set_order(order_list[index] || order_list[order_list.length -1]);
}else{
// when the order was automatically removed after completion,
// or when we intentionally delete the only concurrent order
this.add_new_order();
}
},
// returns the user who is currently the cashier for this point of sale
get_cashier: function(){
// reset the cashier to the current user if session is new
if (this.db.load('pos_session_id') !== this.pos_session.id) {
this.set_cashier(this.user);
}
return this.db.get_cashier() || this.get('cashier') || this.user;
},
// changes the current cashier
set_cashier: function(user){
this.set('cashier', user);
this.db.set_cashier(this.get('cashier'));
},
//creates a new empty order and sets it as the current order
add_new_order: function(){
var order = new exports.Order({},{pos:this});
this.get('orders').add(order);
this.set('selectedOrder', order);
return order;
},
// load the locally saved unpaid orders for this session.
load_orders: function(){
var jsons = this.db.get_unpaid_orders();
var orders = [];
var not_loaded_count = 0;
for (var i = 0; i < jsons.length; i++) {
var json = jsons[i];
if (json.pos_session_id === this.pos_session.id) {
orders.push(new exports.Order({},{
pos: this,
json: json,
}));
} else {
not_loaded_count += 1;
}
}
if (not_loaded_count) {
console.info('There are '+not_loaded_count+' locally saved unpaid orders belonging to another session');
}
orders = orders.sort(function(a,b){
return a.sequence_number - b.sequence_number;
});
if (orders.length) {
this.get('orders').add(orders);
}
},
set_start_order: function(){
var orders = this.get('orders').models;
if (orders.length && !this.get('selectedOrder')) {
this.set('selectedOrder',orders[0]);
} else {
this.add_new_order();
}
},
// return the current order
get_order: function(){
return this.get('selectedOrder');
},
get_client: function() {
var order = this.get_order();
if (order) {
return order.get_client();
}
return null;
},
// change the current order
set_order: function(order){
this.set({ selectedOrder: order });
},
// return the list of unpaid orders
get_order_list: function(){
return this.get('orders').models;
},
//removes the current order
delete_current_order: function(){
var order = this.get_order();
if (order) {
order.destroy({'reason':'abandon'});
}
},
_convert_product_img_to_base64: function (product, url) {
var deferred = new $.Deferred();
var img = new Image();
img.onload = function () {
var canvas = document.createElement('CANVAS');
var ctx = canvas.getContext('2d');
canvas.height = this.height;
canvas.width = this.width;
ctx.drawImage(this,0,0);
var dataURL = canvas.toDataURL('image/jpeg');
product.image_base64 = dataURL;
canvas = null;
deferred.resolve();
};
img.crossOrigin = 'use-credentials';
img.src = url;
return deferred;
},
send_current_order_to_customer_facing_display: function() {
var self = this;
this.render_html_for_customer_facing_display().then(function (rendered_html) {
self.proxy.update_customer_facing_display(rendered_html);
});
},
render_html_for_customer_facing_display: function () {
var self = this;
var order = this.get_order();
var rendered_html = this.config.customer_facing_display_html;
// If we're using an external device like the POSBox, we
// cannot get /web/image?model=product.product because the
// POSBox is not logged in and thus doesn't have the access
// rights to access product.product. So instead we'll base64
// encode it and embed it in the HTML.
var get_image_deferreds = [];
if (order) {
order.get_orderlines().forEach(function (orderline) {
var product = orderline.product;
var image_url = window.location.origin + '/web/image?model=product.product&field=image_medium&id=' + product.id;
// only download and convert image if we haven't done it before
if (! product.image_base64) {
get_image_deferreds.push(self._convert_product_img_to_base64(product, image_url));
}
});
}
// when all images are loaded in product.image_base64
return $.when.apply($, get_image_deferreds).then(function () {
var rendered_order_lines = "";
var rendered_payment_lines = "";
var order_total_with_tax = self.chrome.format_currency(0);
if (order) {
rendered_order_lines = QWeb.render('CustomerFacingDisplayOrderLines', {
'orderlines': order.get_orderlines(),
'widget': self.chrome,
});
rendered_payment_lines = QWeb.render('CustomerFacingDisplayPaymentLines', {
'order': order,
'widget': self.chrome,
});
order_total_with_tax = self.chrome.format_currency(order.get_total_with_tax());
}
var $rendered_html = $(rendered_html);
$rendered_html.find('.pos_orderlines_list').html(rendered_order_lines);
$rendered_html.find('.pos-total').find('.pos_total-amount').html(order_total_with_tax);
var pos_change_title = $rendered_html.find('.pos-change_title').text();
$rendered_html.find('.pos-paymentlines').html(rendered_payment_lines);
$rendered_html.find('.pos-change_title').text(pos_change_title);
// prop only uses the first element in a set of elements,
// and there's no guarantee that
// customer_facing_display_html is wrapped in a single
// root element.
rendered_html = _.reduce($rendered_html, function (memory, current_element) {
return memory + $(current_element).prop('outerHTML');
}, ""); // initial memory of ""
rendered_html = QWeb.render('CustomerFacingDisplayHead', {
origin: window.location.origin
}) + rendered_html;
return rendered_html;
});
},
// 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, opts) {
opts = opts || {};
var self = this;
if(order){
this.db.add_order(order.export_as_JSON());
}
var pushed = new $.Deferred();
this.flush_mutex.exec(function(){
var flushed = self._flush_orders(self.db.get_orders(), opts);
flushed.always(function(ids){
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({code:400, message:'Missing Customer', data:{}});
return invoiced;
}
var order_id = this.db.add_order(order.export_as_JSON());
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_orders([self.db.get_order(order_id)], {timeout:30000, to_invoice:true});
transfer.fail(function(error){
invoiced.reject(error);
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.chrome.do_action('point_of_sale.pos_invoice_report',{additional_context:{
active_ids:order_server_id,
}}).done(function () {
invoiced.resolve();
done.resolve();
});
});
return done;
});
return invoiced;
},
// wrapper around the _save_to_server that updates the synch status widget
_flush_orders: function(orders, options) {
var self = this;
this.set('synch',{ state: 'connecting', pending: orders.length});
return self._save_to_server(orders, options).done(function (server_ids) {
var pending = self.db.get_orders().length;
self.set('synch', {
state: pending ? 'connecting' : 'connected',
pending: pending
});
return server_ids;
}).fail(function(error, event){
var pending = self.db.get_orders().length;
if (self.get('failed')) {
self.set('synch', { state: 'error', pending: pending });
} else {
self.set('synch', { state: 'disconnected', pending: pending });
}
});
},
// send an array of orders to the server
// available options:
// - timeout: timeout for the rpc call in ms
// returns a deferred that resolves with the list of
// server generated ids for the sent orders
_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;
// Keep the order ids that are about to be sent to the
// backend. In between create_from_ui and the success callback
// new orders may have been added to it.
var order_ids_to_sync = _.pluck(orders, 'id');
// 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 args = [_.map(orders, function (order) {
order.to_invoice = options.to_invoice || false;
return order;
})];
return rpc.query({
model: 'pos.order',
method: 'create_from_ui',
args: args,
kwargs: {context: session.user_context},
}, {
timeout: timeout,
shadow: !options.to_invoice
})
.then(function (server_ids) {
_.each(order_ids_to_sync, function (order_id) {
self.db.remove_order(order_id);
});
self.set('failed',false);
return server_ids;
}).fail(function (type, error){
if(error.code === 200 ){ // Business Logic Error, not a connection problem
//if warning do not need to display traceback!!
if (error.data.exception_type == 'warning') {
delete error.data.debug;
}
// Hide error if already shown before ...
if ((!self.get('failed') || options.show_error) && !options.to_invoice) {
self.gui.show_popup('error-traceback',{
'title': error.data.message,
'body': error.data.debug
});
}
self.set('failed',error);
}
console.error('Failed to send orders:', orders);
});
},
scan_product: function(parsed_code){
var selectedOrder = this.get_order();
var product = this.db.get_product_by_barcode(parsed_code.base_code);
if(!product){
return false;
}
if(parsed_code.type === 'price'){
selectedOrder.add_product(product, {price:parsed_code.value});
}else if(parsed_code.type === 'weight'){
selectedOrder.add_product(product, {quantity:parsed_code.value, merge:false});