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78 lines
1.8 KiB
78 lines
1.8 KiB
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/*!
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* Module dependencies
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*/
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var utils = require('./utils');
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/*!
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* Prepare a set of path options for query population.
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*
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* @param {Query} query
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* @param {Object} options
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* @return {Array}
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*/
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exports.preparePopulationOptions = function preparePopulationOptions(query, options) {
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var pop = utils.object.vals(query.options.populate);
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// lean options should trickle through all queries
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if (options.lean) pop.forEach(makeLean);
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return pop;
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};
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/*!
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* Prepare a set of path options for query population. This is the MongooseQuery
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* version
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*
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* @param {Query} query
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* @param {Object} options
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* @return {Array}
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*/
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exports.preparePopulationOptionsMQ = function preparePopulationOptionsMQ(query, options) {
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var pop = utils.object.vals(query._mongooseOptions.populate);
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// lean options should trickle through all queries
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if (options.lean) pop.forEach(makeLean);
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return pop;
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};
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/*!
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* If the document is a mapped discriminator type, it returns a model instance for that type, otherwise,
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* it returns an instance of the given model.
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*
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* @param {Model} model
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* @param {Object} doc
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* @param {Object} fields
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*
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* @return {Model}
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*/
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exports.createModel = function createModel(model, doc, fields) {
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var discriminatorMapping = model.schema
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? model.schema.discriminatorMapping
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: null;
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var key = discriminatorMapping && discriminatorMapping.isRoot
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? discriminatorMapping.key
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: null;
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if (key && doc[key] && model.discriminators && model.discriminators[doc[key]]) {
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return new model.discriminators[doc[key]](undefined, fields, true);
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}
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return new model(undefined, fields, true);
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};
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/*!
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* Set each path query option to lean
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*
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* @param {Object} option
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*/
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function makeLean(option) {
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option.options || (option.options = {});
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option.options.lean = true;
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}
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