Merge pull request #29 from strongloop/scope-remoting
Create remote functions for predefined scopes/relations
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commit
24e93248d1
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@ -0,0 +1,90 @@
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var DataSource = require('../index').DataSource;
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var ds = new DataSource('memory');
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var Order = ds.createModel('Order', {
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customerId: Number,
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orderDate: Date
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});
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var Customer = ds.createModel('Customer', {
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name: String
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});
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Order.belongsTo(Customer);
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Customer.create({name: 'John'}, function (err, customer) {
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Order.create({customerId: customer.id, orderDate: new Date()}, function (err, order) {
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order.customer(console.log);
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order.customer(true, console.log);
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Customer.create({name: 'Mary'}, function (err, customer2) {
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order.customer(customer2);
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order.customer(console.log);
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});
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});
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});
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Customer.hasMany(Order, {as: 'orders', foreignKey: 'customerId'});
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Customer.create({name: 'Ray'}, function (err, customer) {
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Order.create({customerId: customer.id, orderDate: new Date()}, function (err, order) {
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customer.orders(console.log);
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customer.orders.create({orderDate: new Date()}, console.log);
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customer.orders.findById('2', console.log);
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customer.orders.destroy('2', console.log);
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});
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});
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var Physician = ds.createModel('Physician', {
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name: String
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});
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var Patient = ds.createModel('Patient', {
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name: String
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});
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var Appointment = ds.createModel('Appointment', {
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physicianId: Number,
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patientId: Number,
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appointmentDate: Date
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});
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Appointment.belongsTo(Patient);
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Appointment.belongsTo(Physician);
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Physician.hasMany(Patient, {through: Appointment});
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Patient.hasMany(Physician, {through: Appointment});
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Physician.create({name: 'Smith'}, function (err, physician) {
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Patient.create({name: 'Mary'}, function (err, patient) {
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Appointment.create({appointmentDate: new Date(), physicianId: physician.id, patientId: patient.id},
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function (err, appt) {
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physician.patients(console.log);
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patient.physicians(console.log);
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});
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});
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});
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var Assembly = ds.createModel('Assembly', {
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name: String
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});
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var Part = ds.createModel('Part', {
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partNumber: String
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});
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Assembly.hasAndBelongsToMany(Part);
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Part.hasAndBelongsToMany(Assembly);
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Assembly.create({name: 'car'}, function (err, assembly) {
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Part.create({partNumber: 'engine'}, function (err, part) {
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assembly.parts.add(part, function(err) {
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assembly.parts(console.log);
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});
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});
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});
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@ -41,8 +41,7 @@ Relation.hasMany = function hasMany(anotherClass, params) {
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}
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}
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}
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var methodName = params.as ||
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i8n.camelize(i8n.pluralize(anotherClass.modelName), true);
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var methodName = params.as || i8n.camelize(anotherClass.pluralModelName, true);
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var fk = params.foreignKey || i8n.camelize(thisClassName + '_id', true);
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this.relations[methodName] = {
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@ -141,12 +140,14 @@ Relation.hasMany = function hasMany(anotherClass, params) {
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}
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function destroy(id, cb) {
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this.findById(id, function (err, inst) {
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var self = this;
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anotherClass.findById(id, function (err, inst) {
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if (err) return cb(err);
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if (inst) {
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if (!inst) return cb(new Error('Not found'));
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if (inst[fk] && inst[fk].toString() == self.id.toString()) {
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inst.destroy(cb);
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} else {
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cb(new Error('Not found'));
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cb(new Error('Permission denied'));
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}
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});
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}
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39
lib/scope.js
39
lib/scope.js
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@ -20,6 +20,7 @@ function defineScope(cls, targetClass, name, params, methods) {
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}
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}
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// Define a property for the scope
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Object.defineProperty(cls, name, {
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enumerable: false,
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configurable: true,
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@ -80,6 +81,44 @@ function defineScope(cls, targetClass, name, params, methods) {
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}
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});
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// Wrap the property into a function for remoting
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var fn = function() {
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var f = this[name];
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f.apply(this, arguments);
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};
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fn.shared = true;
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fn.http = {verb: 'get', path: '/' + name};
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fn.accepts = {arg: 'where', type: 'object'};
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fn.description = 'Fetches ' + name;
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fn.returns = {arg: name, type: 'array', root: true};
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cls['__get__' + name] = fn;
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var fn_create = function() {
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var f = this[name].create;
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f.apply(this, arguments);
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};
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fn_create.shared = true;
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fn_create.http = {verb: 'post', path: '/' + name};
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fn_create.accepts = {arg: 'data', type: 'object', source: 'body'};
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fn_create.description = 'Creates ' + name;
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fn_create.returns = {arg: 'data', type: 'object', root: true};
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cls['__create__' + name] = fn_create;
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var fn_delete = function() {
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var f = this[name].destroyAll;
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f.apply(this, arguments);
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};
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fn_delete.shared = true;
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fn_delete.http = {verb: 'delete', path: '/' + name};
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fn_delete.description = 'Deletes ' + name;
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fn_delete.returns = {arg: 'data', type: 'object', root: true};
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cls['__delete__' + name] = fn_delete;
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// and it should have create/build methods with binded thisModelNameId param
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function build(data) {
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return new targetClass(mergeParams(this._scope, {where:data || {}}).where);
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