brotherton-erpnext/public/js/stock_grid_report.js

121 lines
3.2 KiB
JavaScript

// Copyright (c) 2013, Web Notes Technologies Pvt. Ltd.
// License: GNU General Public License v3. See license.txt
erpnext.StockGridReport = wn.views.TreeGridReport.extend({
get_item_warehouse: function(warehouse, item) {
if(!this.item_warehouse[item]) this.item_warehouse[item] = {};
if(!this.item_warehouse[item][warehouse]) this.item_warehouse[item][warehouse] = {
balance_qty: 0.0, balance_value: 0.0, fifo_stack: []
};
return this.item_warehouse[item][warehouse];
},
get_value_diff: function(wh, sl, is_fifo) {
// value
if(sl.qty > 0) {
// incoming - rate is given
var rate = sl.incoming_rate;
var add_qty = sl.qty;
if(wh.balance_qty < 0) {
// negative valuation
// only add value of quantity if
// the balance goes above 0
add_qty = wh.balance_qty + sl.qty;
if(add_qty < 0) {
add_qty = 0;
}
}
if(sl.serial_no) {
var value_diff = this.get_serialized_value_diff(sl);
} else {
var value_diff = (rate * add_qty);
}
if(add_qty)
wh.fifo_stack.push([add_qty, sl.incoming_rate, sl.posting_date]);
} else {
// outgoing
if(sl.serial_no) {
var value_diff = -1 * this.get_serialized_value_diff(sl);
} else if(is_fifo) {
var value_diff = this.get_fifo_value_diff(wh, sl);
} else {
// average rate for weighted average
var rate = (wh.balance_qty.toFixed(2) == 0.00 ? 0 :
flt(wh.balance_value) / flt(wh.balance_qty));
// no change in value if negative qty
if((wh.balance_qty + sl.qty).toFixed(2) >= 0.00)
var value_diff = (rate * sl.qty);
else
var value_diff = -wh.balance_value;
}
}
// update balance (only needed in case of valuation)
wh.balance_qty += sl.qty;
wh.balance_value += value_diff;
return value_diff;
},
get_fifo_value_diff: function(wh, sl) {
// get exact rate from fifo stack
var fifo_stack = (wh.fifo_stack || []).reverse();
var fifo_value_diff = 0.0;
var qty = -sl.qty;
for(var i=0, j=fifo_stack.length; i<j; i++) {
var batch = fifo_stack.pop();
if(batch[0] >= qty) {
batch[0] = batch[0] - qty;
fifo_value_diff += (qty * batch[1]);
qty = 0.0;
if(batch[0]) {
// batch still has qty put it back
fifo_stack.push(batch);
}
// all qty found
break;
} else {
// consume this batch fully
fifo_value_diff += (batch[0] * batch[1]);
qty = qty - batch[0];
}
}
if(qty) {
// msgprint("Negative values not allowed for FIFO valuation!\
// Item " + sl.item_code.bold() + " on " + dateutil.str_to_user(sl.posting_datetime).bold() +
// " becomes negative. Values computed will not be accurate.");
}
// reset the updated stack
wh.fifo_stack = fifo_stack.reverse();
return -fifo_value_diff;
},
get_serialized_value_diff: function(sl) {
var me = this;
var value_diff = 0.0;
$.each(sl.serial_no.trim().split("\n"), function(i, sr) {
if(sr) {
value_diff += flt(me.serialized_buying_rates[sr.trim().toLowerCase()]);
}
});
return value_diff;
},
get_serialized_buying_rates: function() {
var serialized_buying_rates = {};
$.each(wn.report_dump.data["Serial No"], function(i, sn) {
serialized_buying_rates[sn.name.toLowerCase()] = flt(sn.incoming_rate);
});
return serialized_buying_rates;
},
});