offshore
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An ORM for Node.js
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<title>Code coverage report for lib/offshore/query/dql/count.js</title>
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<a href="../../../../index.html">all files</a> / <a href="index.html">lib/offshore/query/dql/</a> count.js
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/**
* Module Dependencies
*/
var _ = require('lodash');
var usageError = require('../../utils/usageError');
var utils = require('../../utils/helpers');
var normalize = require('../../utils/normalize');
var Deferred = require('../deferred');
/**
* Count of Records
*
* @param {Object} criteria
* @param {Object} options
* @param {Function} callback
* @return Deferred object if no callback
*/
module.exports = function(criteria, options, cb, metaContainer) {
var usage = utils.capitalize(this.identity) + '.count([criteria],[options],callback)';
<span class="missing-if-branch" title="if path not taken" >I</span>if (typeof criteria === 'function') {
<span class="cstat-no" title="statement not covered" > cb = criteria;</span>
<span class="cstat-no" title="statement not covered" > criteria = null;</span>
<span class="cstat-no" title="statement not covered" > options = null;</span>
}
if (typeof options === 'function') {
cb = options;
options = null;
}
// Normalize criteria and fold in options
criteria = normalize.criteria(criteria);
// Return Deferred or pass to adapter
if (typeof cb !== 'function') {
return new Deferred(this, this.count, criteria);
}
// If there was something defined in the criteria that would return no results, don't even
// run the query and just return 0
<span class="missing-if-branch" title="if path not taken" >I</span>if (criteria === false) {
<span class="cstat-no" title="statement not covered" > return cb(null, 0);</span>
}
if (_.isObject(options) && _.isObject(criteria)) {
criteria = _.extend({}, criteria, options);
}
<span class="missing-if-branch" title="if path not taken" >I</span>if (_.isFunction(criteria) || _.isFunction(options)) {
<span class="cstat-no" title="statement not covered" > return usageError('Invalid options specified!', usage, cb);</span>
}
// Transform Search Criteria
criteria = this._transformer.serialize(criteria);
this.adapter.count(criteria, cb, metaContainer);
};
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