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loopback-boot
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executor: remove direct reference to loopback 

Modify the executor to access the loopback object via `app.loopback`.

Fall back to `require('loopback')` only when `app.loopback` is not set
(loopback versions before 1.9).
This commit is contained in:
Miroslav Bajtoš 2014-06-25 14:10:16 +02:00
parent 4b5f57a7df
commit 230360ef28
1 changed files with 26 additions and 13 deletions
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39
lib/executor.js
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@ -1,6 +1,5 @@
var assert = require('assert');
var _ = require('underscore');
var loopback = require('loopback');
var semver = require('semver');
var debug = require('debug')('loopback:boot:executor');
@ -14,6 +13,7 @@ var debug = require('debug')('loopback:boot:executor');
*/
module.exports = function execute(app, instructions) {
patchAppLoopback(app);
assertLoopBackVersion(app);
setHost(app, instructions);
@ -23,25 +23,38 @@ module.exports = function execute(app, instructions) {
setupDataSources(app, instructions);
setupModels(app, instructions);
autoAttach();
autoAttach(app);
runBootScripts(app, instructions);
enableAnonymousSwagger(app, instructions);
};
function patchAppLoopback(app) {
if (app.loopback) return;
// app.loopback was introduced in 1.9.0
// patch the app object to make loopback-boot work with older versions too
try {
app.loopback = require('loopback');
} catch(err) {
if (err.code === 'MODULE_NOT_FOUND') {
console.error(
'When using loopback-boot with loopback <1.9, '+
'the loopback module must be available for `require(\'loopback\')`.');
}
throw err;
}
}
function assertLoopBackVersion(app) {
var RANGE = '1.x || 2.x';
// app.loopback was introduced in 1.9.0
var loopback = app.loopback || {};
var version = loopback.version || '1.0.0';
if (!semver.satisfies(version, RANGE)) {
var loopback = app.loopback;
if (!semver.satisfies(loopback.version || '1.0.0', RANGE)) {
throw new Error(
'The `app` is powered by an incompatible loopback version %s. ' +
'Supported versions: %s',
loopback.version || '<1.9',
loopback.version || '(unknown)',
RANGE);
}
}
@ -134,14 +147,14 @@ function runScripts(app, list) {
if (!list || !list.length) return;
list.forEach(function(filepath) {
var exports = tryRequire(filepath);
if (isFunctionNotModelCtor(exports))
if (isFunctionNotModelCtor(exports, app.loopback.Model))
exports(app);
});
}
function isFunctionNotModelCtor(fn) {
function isFunctionNotModelCtor(fn, Model) {
return typeof fn === 'function' &&
!(fn.prototype instanceof loopback.Model);
!(fn.prototype instanceof Model);
}
function tryRequire(modulePath) {
@ -158,9 +171,9 @@ function tryRequire(modulePath) {
}
// Deprecated, will be removed soon
function autoAttach() {
function autoAttach(app) {
try {
loopback.autoAttach();
app.loopback.autoAttach();
} catch(e) {
if(e.name === 'AssertionError') {
console.warn(e);