salix/services/service/models/my-model.js

147 lines
3.9 KiB
JavaScript

let loopBackContext = require('loopback-context');
let app = require('../../server/server');
module.exports = function(self) {
self.setup = function() {
self.super_.setup.call(this);
let disableMethods = {
'create': true,
'replaceOrCreate': true,
'patchOrCreate': true,
'upsert': true,
'updateOrCreate': true,
'exists': true,
'find': true,
'findOne': true,
'findById': true,
'deleteById': true,
'replaceById': true,
'updateAttributes': false,
'createChangeStream': true,
'updateAll': true,
'upsertWithWhere': true,
'count': true
};
for(let method in disableMethods) {
//this.disableRemoteMethod(method, disableMethods[method]);
}
};
self.getUser = function() {
let currentUser = loopBackContext.getCurrentContext();
let userId = currentUser.get('currentUser');
return userId;
};
self.getEmployee = function() {
let userId = self.getUser();
let employee = app.models.Employee;
return employee.findOne({where: {userFk: userId}});
};
self.rawSql = function(query, params, cb) {
this.dataSource.connector.execute(query, params, function(error, response) {
cb(error, response);
});
};
self.installMethod = function(methodName, filterCb) {
this.remoteMethod(methodName, {
description: 'List items using a filter',
accessType: 'READ',
accepts: [
{
arg: 'filter',
type: 'object',
required: true,
description: 'Filter defining where',
http: function(ctx) {
return ctx.req.query;
}
}
],
returns: {
arg: 'data',
type: [this.modelName],
root: true
},
http: {
verb: 'get',
path: `/${methodName}`
}
});
this[methodName] = (params, cb) => {
let filter = removeEmpty(filterCb(params));
var response = {}
function returnValues(){
if(response.instances !== undefined && response.count !== undefined)
cb(null, response);
}
function error(){
cb(null, response);
}
this.find(filter, function(err, instances) {
if(!err){
response.instances = instances;
returnValues();
}
else{
error();
}
})
this.count(filter.where, function(err, totalCount){
if(!err){
response.count = totalCount;
returnValues();
}
else{
error();
}
})
};
};
}
function removeEmpty(o) {
if(Array.isArray(o)) {
let array = [];
for(let item of o) {
let i = removeEmpty(item);
if(!isEmpty(item))
array.push(item);
};
if(array.length > 0)
return array;
}
else if (typeof o === 'object') {
let object = {};
for(let key in o) {
let i = removeEmpty(o[key]);
if(!isEmpty(i))
object[key] = i;
}
if(Object.keys(object).length > 0)
return object;
}
else if (!isEmpty(o))
return o;
return undefined;
}
function isEmpty(value) {
return value === undefined || value === "";
}