36 lines
768 B
JavaScript
36 lines
768 B
JavaScript
var loopback = require('../../');
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var CartItem = exports.CartItem = loopback.DataModel.extend('CartItem', {
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tax: {type: Number, default: 0.1},
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price: Number,
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item: String,
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qty: {type: Number, default: 0},
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cartId: Number
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});
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CartItem.sum = function(cartId, callback) {
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this.find({where: {cartId: 1}}, function(err, items) {
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var total = items
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.map(function(item) {
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return item.total();
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})
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.reduce(function(cur, prev) {
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return prev + cur;
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}, 0);
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callback(null, total);
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});
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}
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loopback.remoteMethod(
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CartItem.sum,
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{
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accepts: {arg: 'cartId', type: 'number'},
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returns: {arg: 'total', type: 'number'}
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}
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);
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CartItem.prototype.total = function() {
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return this.price * this.qty * 1 + this.tax;
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}
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