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| /**
* Module Dependencies
*/
var async = require('async');
var _ = require('lodash');
var utils = require('../../utils/helpers');
var Deferred = require('../deferred');
var callbacks = require('../../utils/callbacksRunner');
var nestedOperations = require('../../utils/nestedOperations');
var hop = utils.object.hasOwnProperty;
/**
* Create a new record
*
* @param {Object || Array} values for single model or array of multiple values
* @param {Function} callback
* @return Deferred object if no callback
*/
module.exports = function(values, cb, metaContainer) {
var self = this;
// Handle Deferred where it passes criteria first
if(_.isPlainObject(arguments[0]) && (_.isPlainObject(arguments[1]) || _.isArray(arguments[1]))) {
values = arguments[1];
cb = arguments[2];
}
// Remove all undefined values
if (_.isArray(values)) {
values = _.filter(values, undefined);
}
// Return Deferred or pass to adapter
if (typeof cb !== 'function') {
return new Deferred(this, this.create, {}, values);
}
// Handle Array of values
if (Array.isArray(values)) {
return this.createEach(values, cb, metaContainer);
}
// Process Values
var valuesObject = processValues.call(this, values);
// Create any of the belongsTo associations and set the foreign key values
createBelongsTo.call(this, valuesObject, function(err) {
Iif (err) return cb(err);
beforeCallbacks.call(self, valuesObject, function(err) {
if (err) return cb(err);
createValues.call(self, valuesObject, cb, metaContainer);
}, metaContainer);
});
};
/**
* Process Values
*
* @param {Object} values
* @return {Object}
*/
function processValues(values) {
// Set Default Values if available
for (var key in this.attributes) {
if ((!hop(values, key) || values[key] === undefined) && hop(this.attributes[key], 'defaultsTo')) {
var defaultsTo = this.attributes[key].defaultsTo;
if (typeof defaultsTo === 'function') {
values[key] = defaultsTo.call(values);
} else {
values[key] = _.cloneWith(defaultsTo, function dealWithBuffers(val, key) {
Iif (val instanceof Buffer) {
return val;
}
});
}
}
}
// Pull out any associations in the values
var associations = nestedOperations.valuesParser.call(this, this.identity, this.offshore.schema, values);
// Replace associated models with their foreign key values if available.
// Unless the association has a custom primary key (we want to create the object)
values = nestedOperations.reduceAssociations.call(this, this.identity, this.offshore.schema, values, 'create');
// Cast values to proper types (handle numbers as strings)
values = this._cast.run(values);
return { values: values, associations: associations };
}
/**
* Create BelongsTo Records
*
*/
function createBelongsTo(valuesObject, cb, metaContainer) {
var self = this;
async.each(_.keys(valuesObject.associations.models), function(item, next) {
// Check if value is an object. If not don't try and create it.
if (!_.isPlainObject(valuesObject.associations.models[item])) return next();
// Check for any transformations
var attrName = hop(self._transformer._transformations, item) ? self._transformer._transformations[item] : item;
var attribute = self._schema.schema[attrName];
var modelName;
Iif (hop(attribute, 'collection')) modelName = attribute.collection;
Eif (hop(attribute, 'model')) modelName = attribute.model;
Iif (!modelName) return next();
var model = self.offshore.collections[modelName]._loadQuery(self._query);
var pkValue = valuesObject.associations.models[item][model.primaryKey];
var criteria = {};
criteria[model.primaryKey] = pkValue;
// If a pkValue if found, do a findOrCreate and look for a record matching the pk.
var query;
if (pkValue) {
query = model.findOrCreate(criteria, valuesObject.associations.models[item]);
} else {
query = model.create(valuesObject.associations.models[item]);
}
Iif(metaContainer) {
query.meta(metaContainer);
}
query.exec(function(err, val) {
Iif (err) return next(err);
// attach the new model's pk value to the original value's key
var pk = val[model.primaryKey];
valuesObject.values[item][model.primaryKey] = pk;
valuesObject.associations.models[item][model.primaryKey] = pk;
next();
});
}, cb);
}
/**
* Run Before* Lifecycle Callbacks
*
* @param {Object} valuesObject
* @param {Function} cb
*/
function beforeCallbacks(valuesObject, cb) {
var self = this;
async.series([
// Run Validation with Validation LifeCycle Callbacks
function(cb) {
callbacks.validate(self, valuesObject.values, false, cb);
},
// Before Create Lifecycle Callback
function(cb) {
callbacks.beforeCreate(self, valuesObject.values, cb);
}
], cb);
}
/**
* Create Parent Record and any associated values
*
* @param {Object} valuesObject
* @param {Function} cb
*/
function createValues(valuesObject, cb, metaContainer) {
var self = this;
var date;
var values = _.clone(valuesObject.values);
var parentSchema = self.offshore.schema[self.identity];
_.forEach(parentSchema.attributes, function(attribute, attributeKey) {
if(attribute.foreignKey && values[attributeKey] && _.isObject(values[attributeKey])) {
var deepChildSchema = self.offshore.schema[attribute.references];
var deepChildPk = _.findKey(deepChildSchema.attributes, { primaryKey: true });
values[attributeKey] = values[attributeKey][deepChildPk];
}
});
// Automatically add updatedAt and createdAt (if enabled)
if (self.autoCreatedAt) {
Iif (!values[self.autoCreatedAt]) {
date = date || new Date();
values[self.autoCreatedAt] = date;
}
}
if (self.autoUpdatedAt) {
Iif (!values[self.autoUpdatedAt]) {
date = date || new Date();
values[self.autoUpdatedAt] = date;
}
}
// Transform Values
values = self._transformer.serialize(values);
// Clean attributes
values = self._schema.cleanValues(values);
// Pass to adapter here
self.adapter._loadQuery(self._query).create(values, function(err, values) {
if (err) {
Eif (typeof err === 'object') { err.model = self._model.globalId; }
return cb(err);
}
// Unserialize values
values = self._transformer.unserialize(values);
// If no associations were used, run after
if (_.keys(valuesObject.associations.collections).length === 0) {
// Replace child by foreign key
_.forEach(valuesObject.associations.models, function(value, key) {
values[key] = value;
});
return after(values);
}
var parentModel = new self._model(values)._loadQuery(self._query);
nestedOperations.create.call(self, parentModel, valuesObject.associations.collections, function(err, values) {
Iif (err) {
return cb(err);
}
after(values, {showJoins: true});
});
function after(values, mixins) {
mixins = mixins || {};
// Run After Create Callbacks
callbacks.afterCreate(self, values, function(err) {
Iif (err) return cb(err);
// Return an instance of Model
var model = new self._model(values, mixins)._loadQuery(self._query);
cb(null, model);
});
}
}, metaContainer);
}
|